Merge branch 'master' into index-lifecycle

buildSrc/src/main/groovy/org/elasticsearch/gradle/test/RestIntegTestTask.groovy

@@ -70,31 +70,44 @@ public class RestIntegTestTask extends DefaultTask {
         runner.parallelism = '1'
         runner.include('**/*IT.class')
         runner.systemProperty('tests.rest.load_packaged', 'false')
-        // we pass all nodes to the rest cluster to allow the clients to round-robin between them
-        // this is more realistic than just talking to a single node
-        runner.systemProperty('tests.rest.cluster', "${-> nodes.collect{it.httpUri()}.join(",")}")
-        runner.systemProperty('tests.config.dir', "${-> nodes[0].pathConf}")
-        // TODO: our "client" qa tests currently use the rest-test plugin. instead they should have their own plugin
-        // that sets up the test cluster and passes this transport uri instead of http uri. Until then, we pass
-        // both as separate sysprops
-        runner.systemProperty('tests.cluster', "${-> nodes[0].transportUri()}")
 
-        // dump errors and warnings from cluster log on failure
+        if (System.getProperty("tests.rest.cluster") == null) {
-        TaskExecutionAdapter logDumpListener = new TaskExecutionAdapter() {
+            if (System.getProperty("tests.cluster") != null) {
-            @Override
+                throw new IllegalArgumentException("tests.rest.cluster and tests.cluster must both be null or non-null")
-            void afterExecute(Task task, TaskState state) {
+            }
-                if (state.failure != null) {
+            // we pass all nodes to the rest cluster to allow the clients to round-robin between them
-                    for (NodeInfo nodeInfo : nodes) {
+            // this is more realistic than just talking to a single node
-                        printLogExcerpt(nodeInfo)
+            runner.systemProperty('tests.rest.cluster', "${-> nodes.collect{it.httpUri()}.join(",")}")
+            runner.systemProperty('tests.config.dir', "${-> nodes[0].pathConf}")
+            // TODO: our "client" qa tests currently use the rest-test plugin. instead they should have their own plugin
+            // that sets up the test cluster and passes this transport uri instead of http uri. Until then, we pass
+            // both as separate sysprops
+            runner.systemProperty('tests.cluster', "${-> nodes[0].transportUri()}")
+
+            // dump errors and warnings from cluster log on failure
+            TaskExecutionAdapter logDumpListener = new TaskExecutionAdapter() {
+                @Override
+                void afterExecute(Task task, TaskState state) {
+                    if (state.failure != null) {
+                        for (NodeInfo nodeInfo : nodes) {
+                            printLogExcerpt(nodeInfo)
+                        }
                     }
                 }
             }
-        }
+            runner.doFirst {
-        runner.doFirst {
+                project.gradle.addListener(logDumpListener)
-            project.gradle.addListener(logDumpListener)
+            }
-        }
+            runner.doLast {
-        runner.doLast {
+                project.gradle.removeListener(logDumpListener)
-            project.gradle.removeListener(logDumpListener)
+            }
+        } else {
+            if (System.getProperty("tests.cluster") == null) {
+                throw new IllegalArgumentException("tests.rest.cluster and tests.cluster must both be null or non-null")
+            }
+            // an external cluster was specified and all responsibility for cluster configuration is taken by the user
+            runner.systemProperty('tests.rest.cluster', System.getProperty("tests.rest.cluster"))
+            runner.systemProperty('test.cluster', System.getProperty("tests.cluster"))
         }
 
         // copy the rest spec/tests into the test resources
@@ -109,7 +122,10 @@ public class RestIntegTestTask extends DefaultTask {
                 clusterInit.enabled = false
                 return // no need to add cluster formation tasks if the task won't run!
             }
-            nodes = ClusterFormationTasks.setup(project, "${name}Cluster", runner, clusterConfig)
+            // only create the cluster if needed as otherwise an external cluster to use was specified
+            if (System.getProperty("tests.rest.cluster") == null) {
+                nodes = ClusterFormationTasks.setup(project, "${name}Cluster", runner, clusterConfig)
+            }
             super.dependsOn(runner.finalizedBy)
         }
     }

distribution/archives/build.gradle

@@ -49,7 +49,9 @@ task createPluginsDir(type: EmptyDirTask) {
 CopySpec archiveFiles(CopySpec modulesFiles, String distributionType, boolean oss) {
   return copySpec {
     into("elasticsearch-${version}") {
-      with libFiles
+      into('lib') {
+        with libFiles
+      }
       into('config') {
         dirMode 0750
         fileMode 0660

distribution/build.gradle

@@ -227,13 +227,15 @@ configure(subprojects.findAll { ['archives', 'packages'].contains(it.name) }) {
      *                   Common files in all distributions                       *
      *****************************************************************************/
     libFiles = copySpec {
-      into 'lib'
+      // delay by using closures, since they have not yet been configured, so no jar task exists yet
       from { project(':server').jar }
       from { project(':server').configurations.runtime }
       from { project(':libs:plugin-classloader').jar }
-      // delay add tools using closures, since they have not yet been configured, so no jar task exists yet
       from { project(':distribution:tools:launchers').jar }
-      from { project(':distribution:tools:plugin-cli').jar }
+      into('tools/plugin-cli') {
+        from { project(':distribution:tools:plugin-cli').jar }
+        from { project(':distribution:tools:plugin-cli').configurations.runtime }
+      }
     }
 
     modulesFiles = { oss ->

distribution/packages/build.gradle

@@ -124,13 +124,23 @@ Closure commonPackageConfig(String type, boolean oss) {
         include 'README.textile'
         fileMode 0644
       }
+      into('lib') {
+        with copySpec {
+          with libFiles
+          // we need to specify every intermediate directory so we iterate through the parents; duplicate calls with the same part are fine
+          eachFile { FileCopyDetails fcp ->
+            String[] segments = fcp.relativePath.segments
+            for (int i = segments.length - 2; i > 0 && segments[i] != 'lib'; --i) {
+              directory('/' + segments[0..i].join('/'), 0755)
+            }
+            fcp.mode = 0644
+          }
+        }
+      }
       into('modules') {
         with copySpec {
           with modulesFiles(oss)
-          // we need to specify every intermediate directory, but modules could have sub directories
+          // we need to specify every intermediate directory so we iterate through the parents; duplicate calls with the same part are fine
-          // and there might not be any files as direct children of intermediates (eg platform)
-          // so we must iterate through the parents, but duplicate calls with the same path
-          // are ok (they don't show up in the built packages)
           eachFile { FileCopyDetails fcp ->
             String[] segments = fcp.relativePath.segments
             for (int i = segments.length - 2; i > 0 && segments[i] != 'modules'; --i) {
@@ -251,8 +261,8 @@ ospackage {
     signingKeyId = project.hasProperty('signing.keyId') ? project.property('signing.keyId') : 'D88E42B4'
     signingKeyPassphrase = project.property('signing.password')
     signingKeyRingFile = project.hasProperty('signing.secretKeyRingFile') ?
-                         project.file(project.property('signing.secretKeyRingFile')) :
+            project.file(project.property('signing.secretKeyRingFile')) :
-                         new File(new File(System.getProperty('user.home'), '.gnupg'), 'secring.gpg')
+            new File(new File(System.getProperty('user.home'), '.gnupg'), 'secring.gpg')
   }
 
   requires('coreutils')
@@ -263,7 +273,6 @@ ospackage {
   permissionGroup 'root'
 
   into '/usr/share/elasticsearch'
-  with libFiles
   with noticeFile
 }
 

distribution/src/bin/elasticsearch-cli

@@ -10,6 +10,12 @@ do
   source "`dirname "$0"`"/$additional_source
 done
 
+IFS=';' read -r -a additional_classpath_directories <<< "$ES_ADDITIONAL_CLASSPATH_DIRECTORIES"
+for additional_classpath_directory in "${additional_classpath_directories[@]}"
+do
+  ES_CLASSPATH="$ES_CLASSPATH:$ES_HOME/$additional_classpath_directory/*"
+done
+
 exec \
   "$JAVA" \
   $ES_JAVA_OPTS \

distribution/src/bin/elasticsearch-cli.bat

@@ -11,6 +11,12 @@ for /f "tokens=1*" %%a in ("%*") do (
   set arguments=%%b
 )
 
+if defined ES_ADDITIONAL_CLASSPATH_DIRECTORIES (
+  for %%a in ("%ES_ADDITIONAL_CLASSPATH_DIRECTORIES:;=","%") do (
+    set ES_CLASSPATH=!ES_CLASSPATH!;!ES_HOME!/%%a/*
+  )
+)
+
 %JAVA% ^
   %ES_JAVA_OPTS% ^
   -Des.path.home="%ES_HOME%" ^

distribution/src/bin/elasticsearch-plugin

@@ -1,5 +1,6 @@
 #!/bin/bash
 
-"`dirname "$0"`"/elasticsearch-cli \
+ES_ADDITIONAL_CLASSPATH_DIRECTORIES=lib/tools/plugin-cli \
+  "`dirname "$0"`"/elasticsearch-cli \
   org.elasticsearch.plugins.PluginCli \
   "$@"

distribution/src/bin/elasticsearch-plugin.bat

@@ -3,6 +3,7 @@
 setlocal enabledelayedexpansion
 setlocal enableextensions
 
+set ES_ADDITIONAL_CLASSPATH_DIRECTORIES=lib/tools/plugin-cli
 call "%~dp0elasticsearch-cli.bat" ^
   org.elasticsearch.plugins.PluginCli ^
   %* ^

distribution/tools/plugin-cli/build.gradle

@@ -19,14 +19,22 @@
 
 apply plugin: 'elasticsearch.build'
 
+archivesBaseName = 'elasticsearch-plugin-cli'
+
 dependencies {
   compileOnly "org.elasticsearch:elasticsearch:${version}"
   compileOnly "org.elasticsearch:elasticsearch-cli:${version}"
+  compile "org.bouncycastle:bcpg-jdk15on:1.59"
+  compile "org.bouncycastle:bcprov-jdk15on:1.59"
   testCompile "org.elasticsearch.test:framework:${version}"
   testCompile 'com.google.jimfs:jimfs:1.1'
   testCompile 'com.google.guava:guava:18.0'
 }
 
+dependencyLicenses {
+  mapping from: /bc.*/, to: 'bouncycastle'
+}
+
 test {
   // TODO: find a way to add permissions for the tests in this module
   systemProperty 'tests.security.manager', 'false'

distribution/tools/plugin-cli/licenses/bcpg-jdk15on-1.59.jar.sha1

@@ -0,0 +1 @@
+ee93e5376bb6cf0a15c027b5f5e4393f2738e709

distribution/tools/plugin-cli/licenses/bcprov-jdk15on-1.59.jar.sha1

@@ -0,0 +1 @@
+2507204241ab450456bdb8e8c0a8f986e418bd99

distribution/tools/plugin-cli/licenses/bouncycastle-LICENSE.txt

@@ -0,0 +1,17 @@
+Copyright (c) 2000-2015 The Legion of the Bouncy Castle Inc. (http://www.bouncycastle.org) 
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+and associated documentation files (the "Software"), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.

distribution/tools/plugin-cli/licenses/bouncycastle-NOTICE.txt

@@ -0,0 +1 @@
+

distribution/tools/plugin-cli/src/main/java/org/elasticsearch/plugins/InstallPluginCommand.java

@@ -23,6 +23,16 @@ import joptsimple.OptionSet;
 import joptsimple.OptionSpec;
 import org.apache.lucene.search.spell.LevensteinDistance;
 import org.apache.lucene.util.CollectionUtil;
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureList;
+import org.bouncycastle.openpgp.PGPUtil;
+import org.bouncycastle.openpgp.jcajce.JcaPGPObjectFactory;
+import org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
 import org.elasticsearch.Build;
 import org.elasticsearch.Version;
 import org.elasticsearch.bootstrap.JarHell;
@@ -37,12 +47,14 @@ import org.elasticsearch.core.internal.io.IOUtils;
 import org.elasticsearch.env.Environment;
 
 import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
 import java.net.HttpURLConnection;
 import java.net.URI;
+import java.net.URISyntaxException;
 import java.net.URL;
 import java.net.URLConnection;
 import java.net.URLDecoder;
@@ -59,8 +71,10 @@ import java.nio.file.attribute.PosixFileAttributes;
 import java.nio.file.attribute.PosixFilePermission;
 import java.nio.file.attribute.PosixFilePermissions;
 import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Base64;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -116,7 +130,6 @@ class InstallPluginCommand extends EnvironmentAwareCommand {
     /** The plugin zip is not properly structured. */
     static final int PLUGIN_MALFORMED = 2;
 
-
     /** The builtin modules, which are plugins, but cannot be installed or removed. */
     static final Set<String> MODULES;
     static {
@@ -241,7 +254,7 @@ class InstallPluginCommand extends EnvironmentAwareCommand {
         if (OFFICIAL_PLUGINS.contains(pluginId)) {
             final String url = getElasticUrl(terminal, getStagingHash(), Version.CURRENT, isSnapshot(), pluginId, Platforms.PLATFORM_NAME);
             terminal.println("-> Downloading " + pluginId + " from elastic");
-            return downloadZipAndChecksum(terminal, url, tmpDir, false);
+            return downloadAndValidate(terminal, url, tmpDir, true);
         }
 
         // now try as maven coordinates, a valid URL would only have a colon and slash
@@ -249,7 +262,7 @@ class InstallPluginCommand extends EnvironmentAwareCommand {
         if (coordinates.length == 3 && pluginId.contains("/") == false && pluginId.startsWith("file:") == false) {
             String mavenUrl = getMavenUrl(terminal, coordinates, Platforms.PLATFORM_NAME);
             terminal.println("-> Downloading " + pluginId + " from maven central");
-            return downloadZipAndChecksum(terminal, mavenUrl, tmpDir, true);
+            return downloadAndValidate(terminal, mavenUrl, tmpDir, false);
         }
 
         // fall back to plain old URL
@@ -406,16 +419,44 @@ class InstallPluginCommand extends EnvironmentAwareCommand {
         }
     }
 
-    /** Downloads a zip from the url, as well as a SHA512 (or SHA1) checksum, and checks the checksum. */
+    @SuppressForbidden(reason = "URL#openStream")
-    // pkg private for tests
+    private InputStream urlOpenStream(final URL url) throws IOException {
-    @SuppressForbidden(reason = "We use openStream to download plugins")
+        return url.openStream();
-    private Path downloadZipAndChecksum(Terminal terminal, String urlString, Path tmpDir, boolean allowSha1) throws Exception {
+    }
+
+    /**
+     * Downloads a ZIP from the URL. This method also validates the downloaded plugin ZIP via the following means:
+     * <ul>
+     * <li>
+     * For an official plugin we download the SHA-512 checksum and validate the integrity of the downloaded ZIP. We also download the
+     * armored signature and validate the authenticity of the downloaded ZIP.
+     * </li>
+     * <li>
+     * For a non-official plugin we download the SHA-512 checksum and fallback to the SHA-1 checksum and validate the integrity of the
+     * downloaded ZIP.
+     * </li>
+     * </ul>
+     *
+     * @param terminal       a terminal to log messages to
+     * @param urlString      the URL of the plugin ZIP
+     * @param tmpDir         a temporary directory to write downloaded files to
+     * @param officialPlugin true if the plugin is an official plugin
+     * @return the path to the downloaded plugin ZIP
+     * @throws IOException   if an I/O exception occurs download or reading files and resources
+     * @throws PGPException  if an exception occurs verifying the downloaded ZIP signature
+     * @throws UserException if checksum validation fails
+     */
+    private Path downloadAndValidate(
+            final Terminal terminal,
+            final String urlString,
+            final Path tmpDir,
+            final boolean officialPlugin) throws IOException, PGPException, UserException {
         Path zip = downloadZip(terminal, urlString, tmpDir);
         pathsToDeleteOnShutdown.add(zip);
         String checksumUrlString = urlString + ".sha512";
         URL checksumUrl = openUrl(checksumUrlString);
         String digestAlgo = "SHA-512";
-        if (checksumUrl == null && allowSha1) {
+        if (checksumUrl == null && officialPlugin == false) {
             // fallback to sha1, until 7.0, but with warning
             terminal.println("Warning: sha512 not found, falling back to sha1. This behavior is deprecated and will be removed in a " +
                              "future release. Please update the plugin to use a sha512 checksum.");
@@ -427,7 +468,7 @@ class InstallPluginCommand extends EnvironmentAwareCommand {
             throw new UserException(ExitCodes.IO_ERROR, "Plugin checksum missing: " + checksumUrlString);
         }
         final String expectedChecksum;
-        try (InputStream in = checksumUrl.openStream()) {
+        try (InputStream in = urlOpenStream(checksumUrl)) {
             /*
              * The supported format of the SHA-1 files is a single-line file containing the SHA-1. The supported format of the SHA-512 files
              * is a single-line file containing the SHA-512 and the filename, separated by two spaces. For SHA-1, we verify that the hash
@@ -465,23 +506,119 @@ class InstallPluginCommand extends EnvironmentAwareCommand {
             }
         }
 
-        byte[] zipbytes = Files.readAllBytes(zip);
+        try {
-        String gotChecksum = MessageDigests.toHexString(MessageDigest.getInstance(digestAlgo).digest(zipbytes));
+            final byte[] zipBytes = Files.readAllBytes(zip);
-        if (expectedChecksum.equals(gotChecksum) == false) {
+            final String actualChecksum = MessageDigests.toHexString(MessageDigest.getInstance(digestAlgo).digest(zipBytes));
-            throw new UserException(ExitCodes.IO_ERROR,
+            if (expectedChecksum.equals(actualChecksum) == false) {
-                digestAlgo + " mismatch, expected " + expectedChecksum + " but got " + gotChecksum);
+                throw new UserException(
+                        ExitCodes.IO_ERROR,
+                        digestAlgo + " mismatch, expected " + expectedChecksum + " but got " + actualChecksum);
+            }
+        } catch (final NoSuchAlgorithmException e) {
+            // this should never happen as we are using SHA-1 and SHA-512 here
+            throw new AssertionError(e);
+        }
+
+        if (officialPlugin) {
+            verifySignature(zip, urlString);
         }
 
         return zip;
     }
 
+    /**
+     * Verify the signature of the downloaded plugin ZIP. The signature is obtained from the source of the downloaded plugin by appending
+     * ".asc" to the URL. It is expected that the plugin is signed with the Elastic signing key with ID D27D666CD88E42B4.
+     *
+     * @param zip       the path to the downloaded plugin ZIP
+     * @param urlString the URL source of the downloade plugin ZIP
+     * @throws IOException  if an I/O exception occurs reading from various input streams
+     * @throws PGPException if the PGP implementation throws an internal exception during verification
+     */
+    void verifySignature(final Path zip, final String urlString) throws IOException, PGPException {
+        final String ascUrlString = urlString + ".asc";
+        final URL ascUrl = openUrl(ascUrlString);
+        try (
+                // fin is a file stream over the downloaded plugin zip whose signature to verify
+                InputStream fin = pluginZipInputStream(zip);
+                // sin is a URL stream to the signature corresponding to the downloaded plugin zip
+                InputStream sin = urlOpenStream(ascUrl);
+                // pin is a input stream to the public key in ASCII-Armor format (RFC4880); the Armor data is in RFC2045 format
+                InputStream pin = getPublicKey()) {
+            final JcaPGPObjectFactory factory = new JcaPGPObjectFactory(PGPUtil.getDecoderStream(sin));
+            final PGPSignature signature = ((PGPSignatureList) factory.nextObject()).get(0);
+
+            // validate the signature has key ID matching our public key ID
+            final String keyId = Long.toHexString(signature.getKeyID()).toUpperCase(Locale.ROOT);
+            if (getPublicKeyId().equals(keyId) == false) {
+                throw new IllegalStateException("key id [" + keyId + "] does not match expected key id [" + getPublicKeyId() + "]");
+            }
+
+            // compute the signature of the downloaded plugin zip
+            final List<String> lines =
+                    new BufferedReader(new InputStreamReader(pin, StandardCharsets.UTF_8)).lines().collect(Collectors.toList());
+            // skip armor headers and possible blank line
+            int index = 1;
+            for (; index < lines.size(); index++) {
+                if (lines.get(index).matches(".*: .*") == false && lines.get(index).matches("\\s*") == false) {
+                    break;
+                }
+            }
+            final byte[] armoredData =
+                    lines.subList(index, lines.size() - 1).stream().collect(Collectors.joining("\n")).getBytes(StandardCharsets.UTF_8);
+            final InputStream ain = Base64.getMimeDecoder().wrap(new ByteArrayInputStream(armoredData));
+            final PGPPublicKeyRingCollection collection = new PGPPublicKeyRingCollection(ain, new JcaKeyFingerprintCalculator());
+            final PGPPublicKey key = collection.getPublicKey(signature.getKeyID());
+            signature.init(new JcaPGPContentVerifierBuilderProvider().setProvider(new BouncyCastleProvider()), key);
+            final byte[] buffer = new byte[1024];
+            int read;
+            while ((read = fin.read(buffer)) != -1) {
+                signature.update(buffer, 0, read);
+            }
+
+            // finally we verify the signature of the downloaded plugin zip matches the expected signature
+            if (signature.verify() == false) {
+                throw new IllegalStateException("signature verification for [" + urlString + "] failed");
+            }
+        }
+    }
+
+    /**
+     * An input stream to the raw bytes of the plugin ZIP.
+     *
+     * @param zip the path to the downloaded plugin ZIP
+     * @return an input stream to the raw bytes of the plugin ZIP.
+     * @throws IOException if an I/O exception occurs preparing the input stream
+     */
+    InputStream pluginZipInputStream(final Path zip) throws IOException {
+        return Files.newInputStream(zip);
+    }
+
+    /**
+     * Return the public key ID of the signing key that is expected to have signed the official plugin.
+     *
+     * @return the public key ID
+     */
+    String getPublicKeyId() {
+        return "D27D666CD88E42B4";
+    }
+
+    /**
+     * An input stream to the public key of the signing key.
+     *
+     * @return an input stream to the public key
+     */
+    InputStream getPublicKey() {
+        return InstallPluginCommand.class.getResourceAsStream("/public_key.asc");
+    }
+
     /**
      * Creates a URL and opens a connection.
      *
      * If the URL returns a 404, {@code null} is returned, otherwise the open URL opject is returned.
      */
     // pkg private for tests
-    URL openUrl(String urlString) throws Exception {
+    URL openUrl(String urlString) throws IOException {
         URL checksumUrl = new URL(urlString);
         HttpURLConnection connection = (HttpURLConnection)checksumUrl.openConnection();
         if (connection.getResponseCode() == 404) {
@@ -605,11 +742,27 @@ class InstallPluginCommand extends EnvironmentAwareCommand {
         return info;
     }
 
+    private static final String LIB_TOOLS_PLUGIN_CLI_CLASSPATH_JAR;
+
+    static {
+        LIB_TOOLS_PLUGIN_CLI_CLASSPATH_JAR =
+                String.format(Locale.ROOT, ".+%1$slib%1$stools%1$splugin-cli%1$s[^%1$s]+\\.jar", "(/|\\\\)");
+    }
+
     /** check a candidate plugin for jar hell before installing it */
     void jarHellCheck(PluginInfo candidateInfo, Path candidateDir, Path pluginsDir, Path modulesDir) throws Exception {
         // create list of current jars in classpath
-        final Set<URL> jars = new HashSet<>(JarHell.parseClassPath());
+        final Set<URL> classpath =
-
+                JarHell.parseClassPath()
+                        .stream()
+                        .filter(url -> {
+                            try {
+                                return url.toURI().getPath().matches(LIB_TOOLS_PLUGIN_CLI_CLASSPATH_JAR) == false;
+                            } catch (final URISyntaxException e) {
+                                throw new AssertionError(e);
+                            }
+                        })
+                        .collect(Collectors.toSet());
 
         // read existing bundles. this does some checks on the installation too.
         Set<PluginsService.Bundle> bundles = new HashSet<>(PluginsService.getPluginBundles(pluginsDir));
@@ -621,7 +774,7 @@ class InstallPluginCommand extends EnvironmentAwareCommand {
         // TODO: optimize to skip any bundles not connected to the candidate plugin?
         Map<String, Set<URL>> transitiveUrls = new HashMap<>();
         for (PluginsService.Bundle bundle : sortedBundles) {
-            PluginsService.checkBundleJarHell(bundle, transitiveUrls);
+            PluginsService.checkBundleJarHell(classpath, bundle, transitiveUrls);
         }
 
         // TODO: no jars should be an error

distribution/tools/plugin-cli/src/main/resources/public_key.asc

@@ -0,0 +1,29 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: SKS 1.1.6
+Comment: Hostname: pgp.mit.edu
+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+=92oX
+-----END PGP PUBLIC KEY BLOCK-----

distribution/tools/plugin-cli/src/test/java/org/elasticsearch/plugins/InstallPluginCommandTests.java

@@ -23,6 +23,26 @@ import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;
 import com.google.common.jimfs.Configuration;
 import com.google.common.jimfs.Jimfs;
 import org.apache.lucene.util.LuceneTestCase;
+import org.apache.lucene.util.LuceneTestCase.AwaitsFix;
+import org.bouncycastle.bcpg.ArmoredOutputStream;
+import org.bouncycastle.bcpg.BCPGOutputStream;
+import org.bouncycastle.bcpg.HashAlgorithmTags;
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
+import org.bouncycastle.openpgp.PGPEncryptedData;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPKeyPair;
+import org.bouncycastle.openpgp.PGPPrivateKey;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPSecretKey;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureGenerator;
+import org.bouncycastle.openpgp.operator.PGPDigestCalculator;
+import org.bouncycastle.openpgp.operator.bc.BcPBESecretKeyDecryptorBuilder;
+import org.bouncycastle.openpgp.operator.bc.BcPGPContentSignerBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPKeyPair;
+import org.bouncycastle.openpgp.operator.jcajce.JcePBESecretKeyEncryptorBuilder;
 import org.elasticsearch.Build;
 import org.elasticsearch.Version;
 import org.elasticsearch.cli.ExitCodes;
@@ -44,6 +64,8 @@ import org.junit.After;
 import org.junit.Before;
 
 import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.StringReader;
@@ -66,13 +88,19 @@ import java.nio.file.attribute.PosixFileAttributeView;
 import java.nio.file.attribute.PosixFileAttributes;
 import java.nio.file.attribute.PosixFilePermission;
 import java.nio.file.attribute.UserPrincipal;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
 import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Set;
+import java.util.function.BiFunction;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
@@ -88,6 +116,7 @@ import static org.hamcrest.Matchers.hasToString;
 import static org.hamcrest.Matchers.not;
 
 @LuceneTestCase.SuppressFileSystems("*")
+@AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/30900")
 public class InstallPluginCommandTests extends ESTestCase {
 
     private InstallPluginCommand skipJarHellCommand;
@@ -800,8 +829,16 @@ public class InstallPluginCommandTests extends ESTestCase {
         skipJarHellCommand.execute(terminal, pluginZip, isBatch, env.v2());
     }
 
-    void assertInstallPluginFromUrl(String pluginId, String name, String url, String stagingHash, boolean isSnapshot,
+    void assertInstallPluginFromUrl(
-                                                   String shaExtension, Function<byte[], String> shaCalculator) throws Exception {
+            final String pluginId,
+            final String name,
+            final String url,
+            final String stagingHash,
+            final boolean isSnapshot,
+            final String shaExtension,
+            final Function<byte[], String> shaCalculator,
+            final PGPSecretKey secretKey,
+            final BiFunction<byte[], PGPSecretKey, String> signature) throws Exception {
         Tuple<Path, Environment> env = createEnv(fs, temp);
         Path pluginDir = createPluginDir(temp);
         Path pluginZip = createPlugin(name, pluginDir);
@@ -814,18 +851,56 @@ public class InstallPluginCommandTests extends ESTestCase {
                 return downloadedPath;
             }
             @Override
-            URL openUrl(String urlString) throws Exception {
+            URL openUrl(String urlString) throws IOException {
-                String expectedUrl = url + shaExtension;
+                if ((url + shaExtension).equals(urlString)) {
-                if (expectedUrl.equals(urlString)) {
                     // calc sha an return file URL to it
                     Path shaFile = temp.apply("shas").resolve("downloaded.zip" + shaExtension);
                     byte[] zipbytes = Files.readAllBytes(pluginZip);
                     String checksum = shaCalculator.apply(zipbytes);
                     Files.write(shaFile, checksum.getBytes(StandardCharsets.UTF_8));
                     return shaFile.toUri().toURL();
+                } else if ((url + ".asc").equals(urlString)) {
+                    final Path ascFile = temp.apply("asc").resolve("downloaded.zip" + ".asc");
+                    final byte[] zipBytes = Files.readAllBytes(pluginZip);
+                    final String asc = signature.apply(zipBytes, secretKey);
+                    Files.write(ascFile, asc.getBytes(StandardCharsets.UTF_8));
+                    return ascFile.toUri().toURL();
                 }
                 return null;
             }
+
+            @Override
+            void verifySignature(Path zip, String urlString) throws IOException, PGPException {
+                if (InstallPluginCommand.OFFICIAL_PLUGINS.contains(name)) {
+                    super.verifySignature(zip, urlString);
+                } else {
+                    throw new UnsupportedOperationException("verify signature should not be called for unofficial plugins");
+                }
+            }
+
+            @Override
+            InputStream pluginZipInputStream(Path zip) throws IOException {
+                return new ByteArrayInputStream(Files.readAllBytes(zip));
+            }
+
+            @Override
+            String getPublicKeyId() {
+                return Long.toHexString(secretKey.getKeyID()).toUpperCase(Locale.ROOT);
+            }
+
+            @Override
+            InputStream getPublicKey() {
+                try {
+                    final ByteArrayOutputStream output = new ByteArrayOutputStream();
+                    final ArmoredOutputStream armored = new ArmoredOutputStream(output);
+                    secretKey.getPublicKey().encode(armored);
+                    armored.close();
+                    return new ByteArrayInputStream(output.toByteArray());
+                } catch (final IOException e) {
+                    throw new AssertionError(e);
+                }
+            }
+
             @Override
             boolean urlExists(Terminal terminal, String urlString) throws IOException {
                 return urlString.equals(url);
@@ -851,11 +926,12 @@ public class InstallPluginCommandTests extends ESTestCase {
 
     public void assertInstallPluginFromUrl(
             final String pluginId, final String name, final String url, final String stagingHash, boolean isSnapshot) throws Exception {
-        MessageDigest digest = MessageDigest.getInstance("SHA-512");
+        final MessageDigest digest = MessageDigest.getInstance("SHA-512");
-        assertInstallPluginFromUrl(pluginId, name, url, stagingHash, isSnapshot, ".sha512", checksumAndFilename(digest, url));
+        assertInstallPluginFromUrl(
+                pluginId, name, url, stagingHash, isSnapshot, ".sha512", checksumAndFilename(digest, url), newSecretKey(), this::signature);
     }
 
-    public void testOfficalPlugin() throws Exception {
+    public void testOfficialPlugin() throws Exception {
         String url = "https://artifacts.elastic.co/downloads/elasticsearch-plugins/analysis-icu/analysis-icu-" + Version.CURRENT + ".zip";
         assertInstallPluginFromUrl("analysis-icu", "analysis-icu", url, null, false);
     }
@@ -883,13 +959,13 @@ public class InstallPluginCommandTests extends ESTestCase {
                 e, hasToString(containsString("attempted to install release build of official plugin on snapshot build of Elasticsearch")));
     }
 
-    public void testOfficalPluginStaging() throws Exception {
+    public void testOfficialPluginStaging() throws Exception {
         String url = "https://staging.elastic.co/" + Version.CURRENT + "-abc123/downloads/elasticsearch-plugins/analysis-icu/analysis-icu-"
             + Version.CURRENT + ".zip";
         assertInstallPluginFromUrl("analysis-icu", "analysis-icu", url, "abc123", false);
     }
 
-    public void testOfficalPlatformPlugin() throws Exception {
+    public void testOfficialPlatformPlugin() throws Exception {
         String url = "https://artifacts.elastic.co/downloads/elasticsearch-plugins/analysis-icu/analysis-icu-" + Platforms.PLATFORM_NAME +
             "-" + Version.CURRENT + ".zip";
         assertInstallPluginFromUrl("analysis-icu", "analysis-icu", url, null, false);
@@ -905,7 +981,7 @@ public class InstallPluginCommandTests extends ESTestCase {
         assertInstallPluginFromUrl("analysis-icu", "analysis-icu", url, "abc123", true);
     }
 
-    public void testOfficalPlatformPluginStaging() throws Exception {
+    public void testOfficialPlatformPluginStaging() throws Exception {
         String url = "https://staging.elastic.co/" + Version.CURRENT + "-abc123/downloads/elasticsearch-plugins/analysis-icu/analysis-icu-"
             + Platforms.PLATFORM_NAME + "-"+ Version.CURRENT + ".zip";
         assertInstallPluginFromUrl("analysis-icu", "analysis-icu", url, "abc123", false);
@@ -924,7 +1000,7 @@ public class InstallPluginCommandTests extends ESTestCase {
     public void testMavenSha1Backcompat() throws Exception {
         String url = "https://repo1.maven.org/maven2/mygroup/myplugin/1.0.0/myplugin-1.0.0.zip";
         MessageDigest digest = MessageDigest.getInstance("SHA-1");
-        assertInstallPluginFromUrl("mygroup:myplugin:1.0.0", "myplugin", url, null, false, ".sha1", checksum(digest));
+        assertInstallPluginFromUrl("mygroup:myplugin:1.0.0", "myplugin", url, null, false, ".sha1", checksum(digest), null, (b, p) -> null);
         assertTrue(terminal.getOutput(), terminal.getOutput().contains("sha512 not found, falling back to sha1"));
     }
 
@@ -932,7 +1008,7 @@ public class InstallPluginCommandTests extends ESTestCase {
         String url = "https://artifacts.elastic.co/downloads/elasticsearch-plugins/analysis-icu/analysis-icu-" + Version.CURRENT + ".zip";
         MessageDigest digest = MessageDigest.getInstance("SHA-1");
         UserException e = expectThrows(UserException.class, () ->
-            assertInstallPluginFromUrl("analysis-icu", "analysis-icu", url, null, false, ".sha1", checksum(digest)));
+            assertInstallPluginFromUrl("analysis-icu", "analysis-icu", url, null, false, ".sha1", checksum(digest), null, (b, p) -> null));
         assertEquals(ExitCodes.IO_ERROR, e.exitCode);
         assertEquals("Plugin checksum missing: " + url + ".sha512", e.getMessage());
     }
@@ -940,7 +1016,8 @@ public class InstallPluginCommandTests extends ESTestCase {
     public void testMavenShaMissing() throws Exception {
         String url = "https://repo1.maven.org/maven2/mygroup/myplugin/1.0.0/myplugin-1.0.0.zip";
         UserException e = expectThrows(UserException.class, () ->
-            assertInstallPluginFromUrl("mygroup:myplugin:1.0.0", "myplugin", url, null, false, ".dne", bytes -> null));
+            assertInstallPluginFromUrl(
+                    "mygroup:myplugin:1.0.0", "myplugin", url, null, false, ".dne", bytes -> null, null, (b, p) -> null));
         assertEquals(ExitCodes.IO_ERROR, e.exitCode);
         assertEquals("Plugin checksum missing: " + url + ".sha1", e.getMessage());
     }
@@ -948,8 +1025,9 @@ public class InstallPluginCommandTests extends ESTestCase {
     public void testInvalidShaFileMissingFilename() throws Exception {
         String url = "https://artifacts.elastic.co/downloads/elasticsearch-plugins/analysis-icu/analysis-icu-" + Version.CURRENT + ".zip";
         MessageDigest digest = MessageDigest.getInstance("SHA-512");
-        UserException e = expectThrows(UserException.class, () ->
+        UserException e = expectThrows(UserException.class,
-                assertInstallPluginFromUrl("analysis-icu", "analysis-icu", url, null, false, ".sha512", checksum(digest)));
+                () -> assertInstallPluginFromUrl(
+                        "analysis-icu", "analysis-icu", url, null, false, ".sha512", checksum(digest), null, (b, p) -> null));
         assertEquals(ExitCodes.IO_ERROR, e.exitCode);
         assertTrue(e.getMessage(), e.getMessage().startsWith("Invalid checksum file"));
     }
@@ -965,7 +1043,9 @@ public class InstallPluginCommandTests extends ESTestCase {
                         null,
                         false,
                         ".sha512",
-                        checksumAndString(digest, "  repository-s3-" + Version.CURRENT + ".zip")));
+                        checksumAndString(digest, "  repository-s3-" + Version.CURRENT + ".zip"),
+                        null,
+                        (b, p) -> null));
         assertEquals(ExitCodes.IO_ERROR, e.exitCode);
         assertThat(e, hasToString(matches("checksum file at \\[.*\\] is not for this plugin")));
     }
@@ -981,7 +1061,9 @@ public class InstallPluginCommandTests extends ESTestCase {
                     null,
                     false,
                     ".sha512",
-                    checksumAndString(digest, "  analysis-icu-" + Version.CURRENT + ".zip\nfoobar")));
+                    checksumAndString(digest, "  analysis-icu-" + Version.CURRENT + ".zip\nfoobar"),
+                    null,
+                    (b, p) -> null));
         assertEquals(ExitCodes.IO_ERROR, e.exitCode);
         assertTrue(e.getMessage(), e.getMessage().startsWith("Invalid checksum file"));
     }
@@ -996,7 +1078,9 @@ public class InstallPluginCommandTests extends ESTestCase {
                     null,
                     false,
                     ".sha512",
-                    bytes -> "foobar  analysis-icu-" + Version.CURRENT + ".zip"));
+                    bytes -> "foobar  analysis-icu-" + Version.CURRENT + ".zip",
+                    null,
+                    (b, p) -> null));
         assertEquals(ExitCodes.IO_ERROR, e.exitCode);
         assertTrue(e.getMessage(), e.getMessage().contains("SHA-512 mismatch, expected foobar"));
     }
@@ -1004,11 +1088,77 @@ public class InstallPluginCommandTests extends ESTestCase {
     public void testSha1Mismatch() throws Exception {
         String url = "https://repo1.maven.org/maven2/mygroup/myplugin/1.0.0/myplugin-1.0.0.zip";
         UserException e = expectThrows(UserException.class, () ->
-            assertInstallPluginFromUrl("mygroup:myplugin:1.0.0", "myplugin", url, null, false, ".sha1", bytes -> "foobar"));
+            assertInstallPluginFromUrl(
+                    "mygroup:myplugin:1.0.0", "myplugin", url, null, false, ".sha1", bytes -> "foobar", null, (b, p) -> null));
         assertEquals(ExitCodes.IO_ERROR, e.exitCode);
         assertTrue(e.getMessage(), e.getMessage().contains("SHA-1 mismatch, expected foobar"));
     }
 
+    public void testPublicKeyIdMismatchToExpectedPublicKeyId() throws Exception {
+        final String icu = "analysis-icu";
+        final String url =
+                "https://artifacts.elastic.co/downloads/elasticsearch-plugins/analysis-icu/" + icu + "-" + Version.CURRENT + ".zip";
+        final MessageDigest digest = MessageDigest.getInstance("SHA-512");
+        /*
+         * To setup a situation where the expected public key ID does not match the public key ID used for signing, we generate a new public
+         * key at the moment of signing (see the signature invocation). Note that this key will not match the key that we push down to the
+         * install plugin command.
+         */
+        final PGPSecretKey signingKey = newSecretKey(); // the actual key used for signing
+        final String actualID = Long.toHexString(signingKey.getKeyID()).toUpperCase(Locale.ROOT);
+        final BiFunction<byte[], PGPSecretKey, String> signature = (b, p) -> signature(b, signingKey);
+        final PGPSecretKey verifyingKey = newSecretKey(); // the expected key used for signing
+        final String expectedID = Long.toHexString(verifyingKey.getKeyID()).toUpperCase(Locale.ROOT);
+        final IllegalStateException e = expectThrows(
+                IllegalStateException.class,
+                () ->
+                        assertInstallPluginFromUrl(
+                                icu, icu, url, null, false, ".sha512", checksumAndFilename(digest, url), verifyingKey, signature));
+        assertThat(e, hasToString(containsString("key id [" + actualID + "] does not match expected key id [" + expectedID + "]")));
+    }
+
+    public void testFailedSignatureVerification() throws Exception {
+        final String icu = "analysis-icu";
+        final String url =
+                "https://artifacts.elastic.co/downloads/elasticsearch-plugins/analysis-icu/" + icu + "-" + Version.CURRENT + ".zip";
+        final MessageDigest digest = MessageDigest.getInstance("SHA-512");
+        /*
+         * To setup a situation where signature verification fails, we will mutate the input byte array by modifying a single byte to some
+         * random byte value other than the actual value. This is enough to change the signature and cause verification to intentionally
+         * fail.
+         */
+        final BiFunction<byte[], PGPSecretKey, String> signature = (b, p) -> {
+            final byte[] bytes = Arrays.copyOf(b, b.length);
+            bytes[0] = randomValueOtherThan(b[0], ESTestCase::randomByte);
+            return signature(bytes, p);
+        };
+        final IllegalStateException e = expectThrows(
+                IllegalStateException.class,
+                () ->
+                        assertInstallPluginFromUrl(
+                                icu, icu, url, null, false, ".sha512", checksumAndFilename(digest, url), newSecretKey(), signature));
+        assertThat(e, hasToString(equalTo("java.lang.IllegalStateException: signature verification for [" + url + "] failed")));
+    }
+
+    public PGPSecretKey newSecretKey() throws NoSuchAlgorithmException, NoSuchProviderException, PGPException {
+        final KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
+        kpg.initialize(2048);
+        final KeyPair pair = kpg.generateKeyPair();
+        final PGPDigestCalculator sha1Calc = new JcaPGPDigestCalculatorProviderBuilder().build().get(HashAlgorithmTags.SHA1);
+        final PGPKeyPair pkp = new JcaPGPKeyPair(PGPPublicKey.RSA_GENERAL, pair, new Date());
+        return new PGPSecretKey(
+                PGPSignature.DEFAULT_CERTIFICATION,
+                pkp,
+                "example@example.com",
+                sha1Calc,
+                null,
+                null,
+                new JcaPGPContentSignerBuilder(pkp.getPublicKey().getAlgorithm(), HashAlgorithmTags.SHA1),
+                new JcePBESecretKeyEncryptorBuilder(PGPEncryptedData.CAST5, sha1Calc)
+                        .setProvider(new BouncyCastleProvider())
+                        .build("passphrase".toCharArray()));
+    }
+
     private Function<byte[], String> checksum(final MessageDigest digest) {
         return checksumAndString(digest, "");
     }
@@ -1022,6 +1172,32 @@ public class InstallPluginCommandTests extends ESTestCase {
         return bytes -> MessageDigests.toHexString(digest.digest(bytes)) + s;
     }
 
+    private String signature(final byte[] bytes, final PGPSecretKey secretKey) {
+        try {
+            final PGPPrivateKey privateKey
+                    = secretKey.extractPrivateKey(
+                            new BcPBESecretKeyDecryptorBuilder(
+                                    new JcaPGPDigestCalculatorProviderBuilder().build()).build("passphrase".toCharArray()));
+            final PGPSignatureGenerator generator =
+                    new PGPSignatureGenerator(
+                            new BcPGPContentSignerBuilder(privateKey.getPublicKeyPacket().getAlgorithm(), HashAlgorithmTags.SHA512));
+            generator.init(PGPSignature.BINARY_DOCUMENT, privateKey);
+            final ByteArrayOutputStream output = new ByteArrayOutputStream();
+            try (BCPGOutputStream pout = new BCPGOutputStream(new ArmoredOutputStream(output));
+                 InputStream is = new ByteArrayInputStream(bytes)) {
+                final byte[] buffer = new byte[1024];
+                int read;
+                while ((read = is.read(buffer)) != -1) {
+                    generator.update(buffer, 0, read);
+                }
+                generator.generate().encode(pout);
+            }
+            return new String(output.toByteArray(), "UTF-8");
+        } catch (IOException | PGPException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
     // checks the plugin requires a policy confirmation, and does not install when that is rejected by the user
     // the plugin is installed after this method completes
     private void assertPolicyConfirmation(Tuple<Path, Environment> env, String pluginZip, String... warnings) throws Exception {

docs/reference/docs/reindex.asciidoc

@@ -432,7 +432,15 @@ Remote hosts have to be explicitly whitelisted in elasticsearch.yaml using the
 `reindex.remote.whitelist` property. It can be set to a comma delimited list
 of allowed remote `host` and `port` combinations (e.g.
 `otherhost:9200, another:9200, 127.0.10.*:9200, localhost:*`). Scheme is
-ignored by the whitelist - only host and port are used.
+ignored by the whitelist - only host and port are used, for example:
+
+
+[source,yaml]
+--------------------------------------------------
+reindex.remote.whitelist: "otherhost:9200, another:9200, 127.0.10.*:9200, localhost:*"
+--------------------------------------------------
+
+The whitelist must be configured on any nodes that will coordinate the reindex.
 
 This feature should work with remote clusters of any version of Elasticsearch
 you are likely to find. This should allow you to upgrade from any version of

docs/reference/indices/create-index.asciidoc

@@ -1,16 +1,39 @@
 [[indices-create-index]]
 == Create Index
 
-The create index API allows to instantiate an index. Elasticsearch
+The Create Index API is used to manually create an index in Elasticsearch.  All documents in Elasticsearch
-provides support for multiple indices, including executing operations
+are stored inside of one index or another.
-across several indices.
+
+The most basic command is the following:
+
+[source,js]
+--------------------------------------------------
+PUT twitter
+--------------------------------------------------
+// CONSOLE
+
+This create an index named `twitter` with all default setting.
+
+[NOTE]
+.Index name limitations
+======================================================
+There are several limitations to what you can name your index.  The complete list of limitations are:
+
+- Lowercase only
+- Cannot include `\`, `/`, `*`, `?`, `"`, `<`, `>`, `|`, ` ` (space character), `,`, `#`
+- Indices prior to 7.0 could contain a colon (`:`), but that's been deprecated and won't be supported in 7.0+
+- Cannot start with `-`, `_`, `+`
+- Cannot be `.` or ``..`
+- Cannot be longer than 255 bytes (note it is bytes, so multi-byte characters will count towards the 255 limit faster)
+
+======================================================
 
 [float]
 [[create-index-settings]]
 === Index Settings
 
 Each index created can have specific settings
-associated with it.
+associated with it, defined in the body:
 
 [source,js]
 --------------------------------------------------
@@ -28,25 +51,6 @@ PUT twitter
 <1> Default for `number_of_shards` is 1
 <2> Default for `number_of_replicas` is 1 (ie one replica for each primary shard)
 
-The above second curl example shows how an index called `twitter` can be
-created with specific settings for it using http://www.yaml.org[YAML].
-In this case, creating an index with 3 shards, each with 2 replicas. The
-index settings can also be defined with http://www.json.org[JSON]:
-
-[source,js]
---------------------------------------------------
-PUT twitter
-{
-    "settings" : {
-        "index" : {
-            "number_of_shards" : 3,
-            "number_of_replicas" : 2
-        }
-    }
-}
---------------------------------------------------
-// CONSOLE
-
 or more simplified
 
 [source,js]

docs/reference/migration/migrate_7_0.asciidoc

@@ -35,7 +35,7 @@ Elasticsearch 6.x in order to be readable by Elasticsearch 7.x.
 * <<breaking_70_java_changes>>
 * <<breaking_70_settings_changes>>
 * <<breaking_70_scripting_changes>>
-
+* <<breaking_70_snapshotstats_changes>>
 
 include::migrate_7_0/aggregations.asciidoc[]
 include::migrate_7_0/analysis.asciidoc[]
@@ -49,3 +49,4 @@ include::migrate_7_0/api.asciidoc[]
 include::migrate_7_0/java.asciidoc[]
 include::migrate_7_0/settings.asciidoc[]
 include::migrate_7_0/scripting.asciidoc[]
+include::migrate_7_0/snapshotstats.asciidoc[]

docs/reference/migration/migrate_7_0/snapshotstats.asciidoc

@@ -0,0 +1,13 @@
+[[breaking_70_snapshotstats_changes]]
+=== Snapshot stats changes
+
+Snapshot stats details are provided in a new structured way:
+
+* `total` section for all the files that are referenced by the snapshot.
+* `incremental` section for those files that actually needed to be copied over as part of the incremental snapshotting.
+* In case of a snapshot that's still in progress, there's also a `processed` section for files that are in the process of being copied.
+
+==== Deprecated `number_of_files`, `processed_files`, `total_size_in_bytes` and `processed_size_in_bytes` snapshot stats properties have been removed
+
+* Properties `number_of_files` and `total_size_in_bytes` are removed and should be replaced by values of nested object `total`.
+* Properties `processed_files` and `processed_size_in_bytes` are removed and should be replaced by values of nested object `processed`.

docs/reference/modules/snapshots.asciidoc

@@ -563,6 +563,54 @@ GET /_snapshot/my_backup/snapshot_1/_status
 // CONSOLE
 // TEST[continued]
 
+The output looks similar to the following:
+
+[source,js]
+--------------------------------------------------
+{
+  "snapshots": [
+    {
+      "snapshot": "snapshot_1",
+      "repository": "my_backup",
+      "uuid": "XuBo4l4ISYiVg0nYUen9zg",
+      "state": "SUCCESS",
+      "include_global_state": true,
+      "shards_stats": {
+        "initializing": 0,
+        "started": 0,
+        "finalizing": 0,
+        "done": 5,
+        "failed": 0,
+        "total": 5
+      },
+      "stats": {
+        "incremental": {
+          "file_count": 8,
+          "size_in_bytes": 4704
+        },
+        "processed": {
+          "file_count": 7,
+          "size_in_bytes": 4254
+        },
+        "total": {
+          "file_count": 8,
+          "size_in_bytes": 4704
+        },
+        "start_time_in_millis": 1526280280355,
+        "time_in_millis": 358
+      }
+    }
+  ]
+}
+--------------------------------------------------
+// TESTRESPONSE
+
+The output is composed of different sections. The `stats` sub-object provides details on the number and size of files that were
+snapshotted. As snapshots are incremental, copying only the Lucene segments that are not already in the repository,
+the `stats` object contains a `total` section for all the files that are referenced by the snapshot, as well as an `incremental` section
+for those files that actually needed to be copied over as part of the incremental snapshotting. In case of a snapshot that's still
+in progress, there's also a `processed` section that contains information about the files that are in the process of being copied.
+
 Multiple ids are also supported:
 
 [source,sh]

docs/reference/upgrade/disable-shard-alloc.asciidoc

@@ -1,8 +1,10 @@
 
-When you shut down a node, the allocation process waits for one minute
+When you shut down a node, the allocation process waits for
-before starting to replicate the shards on that node to other nodes
+`index.unassigned.node_left.delayed_timeout` (by default, one minute) before
-in the cluster, causing a lot of wasted I/O. You can avoid racing the clock
+starting to replicate the shards on that node to other nodes in the cluster,
-by disabling allocation before shutting down the node:
+which can involve a lot of I/O.  Since the node is shortly going to be
+restarted, this I/O is unnecessary. You can avoid racing the clock by disabling
+allocation before shutting down the node:
 
 [source,js]
 --------------------------------------------------

modules/lang-expression/src/main/java/org/elasticsearch/script/expression/ExpressionScriptEngine.java

@@ -23,8 +23,10 @@ import org.apache.lucene.expressions.Expression;
 import org.apache.lucene.expressions.SimpleBindings;
 import org.apache.lucene.expressions.js.JavascriptCompiler;
 import org.apache.lucene.expressions.js.VariableContext;
+import org.apache.lucene.index.LeafReaderContext;
 import org.apache.lucene.queries.function.ValueSource;
 import org.apache.lucene.queries.function.valuesource.DoubleConstValueSource;
+import org.apache.lucene.search.Scorer;
 import org.apache.lucene.search.SortField;
 import org.elasticsearch.SpecialPermission;
 import org.elasticsearch.common.Nullable;
@@ -39,12 +41,14 @@ import org.elasticsearch.index.mapper.MapperService;
 import org.elasticsearch.script.ClassPermission;
 import org.elasticsearch.script.ExecutableScript;
 import org.elasticsearch.script.FilterScript;
+import org.elasticsearch.script.ScoreScript;
 import org.elasticsearch.script.ScriptContext;
 import org.elasticsearch.script.ScriptEngine;
 import org.elasticsearch.script.ScriptException;
 import org.elasticsearch.script.SearchScript;
 import org.elasticsearch.search.lookup.SearchLookup;
 
+import java.io.IOException;
 import java.security.AccessControlContext;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
@@ -111,6 +115,9 @@ public class ExpressionScriptEngine extends AbstractComponent implements ScriptE
         } else if (context.instanceClazz.equals(FilterScript.class)) {
             FilterScript.Factory factory = (p, lookup) -> newFilterScript(expr, lookup, p);
             return context.factoryClazz.cast(factory);
+        } else if (context.instanceClazz.equals(ScoreScript.class)) {
+            ScoreScript.Factory factory = (p, lookup) -> newScoreScript(expr, lookup, p);
+            return context.factoryClazz.cast(factory);
         }
         throw new IllegalArgumentException("expression engine does not know how to handle script context [" + context.name + "]");
     }
@@ -260,6 +267,42 @@ public class ExpressionScriptEngine extends AbstractComponent implements ScriptE
             };
         };
     }
+    
+    private ScoreScript.LeafFactory newScoreScript(Expression expr, SearchLookup lookup, @Nullable Map<String, Object> vars) {
+        SearchScript.LeafFactory searchLeafFactory = newSearchScript(expr, lookup, vars);
+        return new ScoreScript.LeafFactory() {
+            @Override
+            public boolean needs_score() {
+                return searchLeafFactory.needs_score();
+            }
+
+            @Override
+            public ScoreScript newInstance(LeafReaderContext ctx) throws IOException {
+                SearchScript script = searchLeafFactory.newInstance(ctx);
+                return new ScoreScript(vars, lookup, ctx) {
+                    @Override
+                    public double execute() {
+                        return script.runAsDouble();
+                    }
+    
+                    @Override
+                    public void setDocument(int docid) {
+                        script.setDocument(docid);
+                    }
+    
+                    @Override
+                    public void setScorer(Scorer scorer) {
+                        script.setScorer(scorer);
+                    }
+    
+                    @Override
+                    public double get_score() {
+                        return script.getScore();
+                    }
+                };
+            }
+        };
+    }
 
     /**
      * converts a ParseException at compile-time or link-time to a ScriptException

plugins/examples/script-expert-scoring/src/main/java/org/elasticsearch/example/expertscript/ExpertScriptPlugin.java

@@ -30,9 +30,9 @@ import org.apache.lucene.index.Term;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.plugins.Plugin;
 import org.elasticsearch.plugins.ScriptPlugin;
+import org.elasticsearch.script.ScoreScript;
 import org.elasticsearch.script.ScriptContext;
 import org.elasticsearch.script.ScriptEngine;
-import org.elasticsearch.script.SearchScript;
 
 /**
  * An example script plugin that adds a {@link ScriptEngine} implementing expert scoring.
@@ -54,12 +54,12 @@ public class ExpertScriptPlugin extends Plugin implements ScriptPlugin {
 
         @Override
         public <T> T compile(String scriptName, String scriptSource, ScriptContext<T> context, Map<String, String> params) {
-            if (context.equals(SearchScript.SCRIPT_SCORE_CONTEXT) == false) {
+            if (context.equals(ScoreScript.CONTEXT) == false) {
                 throw new IllegalArgumentException(getType() + " scripts cannot be used for context [" + context.name + "]");
             }
             // we use the script "source" as the script identifier
             if ("pure_df".equals(scriptSource)) {
-                SearchScript.Factory factory = (p, lookup) -> new SearchScript.LeafFactory() {
+                ScoreScript.Factory factory = (p, lookup) -> new ScoreScript.LeafFactory() {
                     final String field;
                     final String term;
                     {
@@ -74,18 +74,18 @@ public class ExpertScriptPlugin extends Plugin implements ScriptPlugin {
                     }
 
                     @Override
-                    public SearchScript newInstance(LeafReaderContext context) throws IOException {
+                    public ScoreScript newInstance(LeafReaderContext context) throws IOException {
                         PostingsEnum postings = context.reader().postings(new Term(field, term));
                         if (postings == null) {
                             // the field and/or term don't exist in this segment, so always return 0
-                            return new SearchScript(p, lookup, context) {
+                            return new ScoreScript(p, lookup, context) {
                                 @Override
-                                public double runAsDouble() {
+                                public double execute() {
                                     return 0.0d;
                                 }
                             };
                         }
-                        return new SearchScript(p, lookup, context) {
+                        return new ScoreScript(p, lookup, context) {
                             int currentDocid = -1;
                             @Override
                             public void setDocument(int docid) {
@@ -100,7 +100,7 @@ public class ExpertScriptPlugin extends Plugin implements ScriptPlugin {
                                 currentDocid = docid;
                             }
                             @Override
-                            public double runAsDouble() {
+                            public double execute() {
                                 if (postings.docID() != currentDocid) {
                                     // advance moved past the current doc, so this doc has no occurrences of the term
                                     return 0.0d;

qa/smoke-test-rank-eval-with-mustache/build.gradle

@@ -25,9 +25,3 @@ dependencies {
     testCompile project(path: ':modules:rank-eval', configuration: 'runtime')
     testCompile project(path: ':modules:lang-mustache', configuration: 'runtime')
 }
-
-/*
- * One of the integration tests doesn't work with the zip distribution
- * and will be fixed later.
- * Tracked by https://github.com/elastic/elasticsearch/issues/30628
- */

rest-api-spec/src/main/resources/rest-api-spec/test/indices.get_settings/30_defaults.yml

@@ -0,0 +1,28 @@
+---
+setup:
+  - do:
+      indices.create:
+        body:
+          settings:
+            index:
+              number_of_shards: 1
+              number_of_replicas: 1
+        index: test-index
+---
+Test retrieval of default settings:
+  - skip:
+      version: " - 6.3.99"
+      reason: include_defaults will not work in mixed-mode clusters containing nodes pre-6.4
+  - do:
+      indices.get_settings:
+        flat_settings: true
+        index: test-index
+  - is_false:
+      test-index.settings.index\.refresh_interval
+  - do:
+      indices.get_settings:
+        include_defaults: true
+        flat_settings: true
+        index: test-index
+  - match:
+      test-index.defaults.index\.refresh_interval: "1s"

rest-api-spec/src/main/resources/rest-api-spec/test/indices.put_settings/11_reset.yml

@@ -23,15 +23,3 @@ Test reset index settings:
       indices.get_settings:
         flat_settings: false
   - is_false: test-index.settings.index\.refresh_interval
-
-# Disabled until https://github.com/elastic/elasticsearch/pull/29229 is back-ported
-# That PR changed the execution path of index settings default to be on the master
-# until the PR is back-ported the old master will not return default settings.
-#
-#  - do:
-#      indices.get_settings:
-#        include_defaults: true
-#        flat_settings: true
-#        index: test-index
-#  - match:
-#      test-index.defaults.index\.refresh_interval: "1s"

rest-api-spec/src/main/resources/rest-api-spec/test/snapshot.get_repository/10_basic.yml

@@ -52,7 +52,7 @@ setup:
 ---
 "Verify created repository":
   - skip:
-      version:     " - 6.99.99"
+      version:     "all"
       reason:      AwaitsFix for https://github.com/elastic/elasticsearch/issues/30807
   - do:
       snapshot.verify_repository:

rest-api-spec/src/main/resources/rest-api-spec/test/snapshot.status/10_basic.yml

@@ -11,7 +11,6 @@ setup:
 
 ---
 "Get snapshot status":
-
   - do:
       indices.create:
         index: test_index
@@ -32,6 +31,14 @@ setup:
         snapshot: test_snapshot
 
   - is_true: snapshots
+  - match: { snapshots.0.snapshot: test_snapshot }
+  - match: { snapshots.0.state: SUCCESS }
+  - gt: { snapshots.0.stats.incremental.file_count: 0 }
+  - gt: { snapshots.0.stats.incremental.size_in_bytes: 0 }
+  - gt: { snapshots.0.stats.total.file_count: 0 }
+  - gt: { snapshots.0.stats.total.size_in_bytes: 0 }
+  - is_true: snapshots.0.stats.start_time_in_millis
+  - is_true: snapshots.0.stats.time_in_millis
 
 ---
 "Get missing snapshot status throws an exception":

server/src/main/java/org/elasticsearch/action/admin/cluster/repositories/verify/VerifyRepositoryResponse.java

@@ -140,7 +140,7 @@ public class VerifyRepositoryResponse extends ActionResponse implements ToXConte
     @Override
     public void readFrom(StreamInput in) throws IOException {
         super.readFrom(in);
-        if (in.getVersion().onOrAfter(Version.V_7_0_0_alpha1)) {
+        if (in.getVersion().onOrAfter(Version.V_6_4_0)) {
             this.nodes = in.readList(NodeView::new).stream().map(n -> n.convertToDiscoveryNode()).collect(Collectors.toList());
         } else {
             clusterName = new ClusterName(in);
@@ -151,7 +151,7 @@ public class VerifyRepositoryResponse extends ActionResponse implements ToXConte
     @Override
     public void writeTo(StreamOutput out) throws IOException {
         super.writeTo(out);
-        if (Version.CURRENT.onOrAfter(Version.V_7_0_0_alpha1)) {
+        if (out.getVersion().onOrAfter(Version.V_6_4_0)) {
             out.writeList(getNodes());
         } else {
             clusterName.writeTo(out);

server/src/main/java/org/elasticsearch/action/admin/cluster/snapshots/status/SnapshotIndexShardStatus.java

@@ -74,8 +74,8 @@ public class SnapshotIndexShardStatus extends BroadcastShardResponse implements
                 throw new IllegalArgumentException("Unknown stage type " + indexShardStatus.getStage());
         }
         this.stats = new SnapshotStats(indexShardStatus.getStartTime(), indexShardStatus.getTotalTime(),
-                                        indexShardStatus.getNumberOfFiles(), indexShardStatus.getProcessedFiles(),
+            indexShardStatus.getIncrementalFileCount(), indexShardStatus.getTotalFileCount(), indexShardStatus.getProcessedFileCount(),
-                                        indexShardStatus.getTotalSize(), indexShardStatus.getProcessedSize());
+            indexShardStatus.getIncrementalSize(), indexShardStatus.getTotalSize(), indexShardStatus.getProcessedSize());
         this.failure = indexShardStatus.getFailure();
         this.nodeId = nodeId;
     }

server/src/main/java/org/elasticsearch/action/admin/cluster/snapshots/status/SnapshotStats.java

@@ -19,6 +19,7 @@
 
 package org.elasticsearch.action.admin.cluster.snapshots.status;
 
+import org.elasticsearch.Version;
 import org.elasticsearch.common.io.stream.StreamInput;
 import org.elasticsearch.common.io.stream.StreamOutput;
 import org.elasticsearch.common.io.stream.Streamable;
@@ -34,19 +35,25 @@ public class SnapshotStats implements Streamable, ToXContentFragment {
 
     private long startTime;
     private long time;
-    private int numberOfFiles;
+    private int incrementalFileCount;
-    private int processedFiles;
+    private int totalFileCount;
+    private int processedFileCount;
+    private long incrementalSize;
     private long totalSize;
     private long processedSize;
 
     SnapshotStats() {
     }
 
-    SnapshotStats(long startTime, long time, int numberOfFiles, int processedFiles, long totalSize, long processedSize) {
+    SnapshotStats(long startTime, long time,
+                  int incrementalFileCount, int totalFileCount, int processedFileCount,
+                  long incrementalSize, long totalSize, long processedSize) {
         this.startTime = startTime;
         this.time = time;
-        this.numberOfFiles = numberOfFiles;
+        this.incrementalFileCount = incrementalFileCount;
-        this.processedFiles = processedFiles;
+        this.totalFileCount = totalFileCount;
+        this.processedFileCount = processedFileCount;
+        this.incrementalSize = incrementalSize;
         this.totalSize = totalSize;
         this.processedSize = processedSize;
     }
@@ -66,17 +73,31 @@ public class SnapshotStats implements Streamable, ToXContentFragment {
     }
 
     /**
-     * Returns number of files in the snapshot
+     * Returns incremental file count of the snapshot
      */
-    public int getNumberOfFiles() {
+    public int getIncrementalFileCount() {
-        return numberOfFiles;
+        return incrementalFileCount;
+    }
+
+    /**
+     * Returns total number of files in the snapshot
+     */
+    public int getTotalFileCount() {
+        return totalFileCount;
     }
 
     /**
      * Returns number of files in the snapshot that were processed so far
      */
-    public int getProcessedFiles() {
+    public int getProcessedFileCount() {
-        return processedFiles;
+        return processedFileCount;
+    }
+
+    /**
+     * Return incremental files size of the snapshot
+     */
+    public long getIncrementalSize() {
+        return incrementalSize;
     }
 
     /**
@@ -105,11 +126,16 @@ public class SnapshotStats implements Streamable, ToXContentFragment {
         out.writeVLong(startTime);
         out.writeVLong(time);
 
-        out.writeVInt(numberOfFiles);
+        out.writeVInt(incrementalFileCount);
-        out.writeVInt(processedFiles);
+        out.writeVInt(processedFileCount);
 
-        out.writeVLong(totalSize);
+        out.writeVLong(incrementalSize);
         out.writeVLong(processedSize);
+
+        if (out.getVersion().onOrAfter(Version.V_6_4_0)) {
+            out.writeVInt(totalFileCount);
+            out.writeVLong(totalSize);
+        }
     }
 
     @Override
@@ -117,21 +143,32 @@ public class SnapshotStats implements Streamable, ToXContentFragment {
         startTime = in.readVLong();
         time = in.readVLong();
 
-        numberOfFiles = in.readVInt();
+        incrementalFileCount = in.readVInt();
-        processedFiles = in.readVInt();
+        processedFileCount = in.readVInt();
 
-        totalSize = in.readVLong();
+        incrementalSize = in.readVLong();
         processedSize = in.readVLong();
+
+        if (in.getVersion().onOrAfter(Version.V_6_4_0)) {
+            totalFileCount = in.readVInt();
+            totalSize = in.readVLong();
+        } else {
+            totalFileCount = incrementalFileCount;
+            totalSize = incrementalSize;
+        }
     }
 
     static final class Fields {
         static final String STATS = "stats";
-        static final String NUMBER_OF_FILES = "number_of_files";
+
-        static final String PROCESSED_FILES = "processed_files";
+        static final String INCREMENTAL = "incremental";
-        static final String TOTAL_SIZE_IN_BYTES = "total_size_in_bytes";
+        static final String PROCESSED = "processed";
-        static final String TOTAL_SIZE = "total_size";
+        static final String TOTAL = "total";
-        static final String PROCESSED_SIZE_IN_BYTES = "processed_size_in_bytes";
+
-        static final String PROCESSED_SIZE = "processed_size";
+        static final String FILE_COUNT = "file_count";
+        static final String SIZE = "size";
+        static final String SIZE_IN_BYTES = "size_in_bytes";
+
         static final String START_TIME_IN_MILLIS = "start_time_in_millis";
         static final String TIME_IN_MILLIS = "time_in_millis";
         static final String TIME = "time";
@@ -139,25 +176,44 @@ public class SnapshotStats implements Streamable, ToXContentFragment {
 
     @Override
     public XContentBuilder toXContent(XContentBuilder builder, ToXContent.Params params) throws IOException {
-        builder.startObject(Fields.STATS);
+        builder.startObject(Fields.STATS)
-        builder.field(Fields.NUMBER_OF_FILES, getNumberOfFiles());
+            //  incremental starts
-        builder.field(Fields.PROCESSED_FILES, getProcessedFiles());
+            .startObject(Fields.INCREMENTAL)
-        builder.humanReadableField(Fields.TOTAL_SIZE_IN_BYTES, Fields.TOTAL_SIZE, new ByteSizeValue(getTotalSize()));
+            .field(Fields.FILE_COUNT, getIncrementalFileCount())
-        builder.humanReadableField(Fields.PROCESSED_SIZE_IN_BYTES, Fields.PROCESSED_SIZE, new ByteSizeValue(getProcessedSize()));
+            .humanReadableField(Fields.SIZE_IN_BYTES, Fields.SIZE, new ByteSizeValue(getIncrementalSize()))
-        builder.field(Fields.START_TIME_IN_MILLIS, getStartTime());
+            //  incremental ends
-        builder.humanReadableField(Fields.TIME_IN_MILLIS, Fields.TIME, new TimeValue(getTime()));
+            .endObject();
-        builder.endObject();
+
-        return builder;
+        if (getProcessedFileCount() != getIncrementalFileCount()) {
+            //  processed starts
+            builder.startObject(Fields.PROCESSED)
+                .field(Fields.FILE_COUNT, getProcessedFileCount())
+                .humanReadableField(Fields.SIZE_IN_BYTES, Fields.SIZE, new ByteSizeValue(getProcessedSize()))
+                //  processed ends
+                .endObject();
+        }
+        //  total starts
+        builder.startObject(Fields.TOTAL)
+            .field(Fields.FILE_COUNT, getTotalFileCount())
+            .humanReadableField(Fields.SIZE_IN_BYTES, Fields.SIZE, new ByteSizeValue(getTotalSize()))
+            //  total ends
+            .endObject();
+       // timings stats
+       builder.field(Fields.START_TIME_IN_MILLIS, getStartTime())
+            .humanReadableField(Fields.TIME_IN_MILLIS, Fields.TIME, new TimeValue(getTime()));
+
+        return builder.endObject();
     }
 
     void add(SnapshotStats stats) {
-        numberOfFiles += stats.numberOfFiles;
+        incrementalFileCount += stats.incrementalFileCount;
-        processedFiles += stats.processedFiles;
+        totalFileCount += stats.totalFileCount;
+        processedFileCount += stats.processedFileCount;
 
+        incrementalSize += stats.incrementalSize;
         totalSize += stats.totalSize;
         processedSize += stats.processedSize;
 
-
         if (startTime == 0) {
             // First time here
             startTime = stats.startTime;

server/src/main/java/org/elasticsearch/common/geo/parsers/GeoWKTParser.java

@@ -18,12 +18,9 @@
  */
 package org.elasticsearch.common.geo.parsers;
 
-import org.locationtech.jts.geom.Coordinate;
 import org.elasticsearch.ElasticsearchParseException;
 import org.elasticsearch.common.geo.GeoPoint;
 import org.elasticsearch.common.geo.GeoShapeType;
-
-import java.io.StringReader;
 import org.elasticsearch.common.geo.builders.CoordinatesBuilder;
 import org.elasticsearch.common.geo.builders.EnvelopeBuilder;
 import org.elasticsearch.common.geo.builders.GeometryCollectionBuilder;
@@ -37,9 +34,11 @@ import org.elasticsearch.common.geo.builders.ShapeBuilder;
 import org.elasticsearch.common.logging.Loggers;
 import org.elasticsearch.common.xcontent.XContentParser;
 import org.elasticsearch.index.mapper.GeoShapeFieldMapper;
+import org.locationtech.jts.geom.Coordinate;
 
 import java.io.IOException;
 import java.io.StreamTokenizer;
+import java.io.StringReader;
 import java.util.List;
 
 /**
@@ -77,8 +76,7 @@ public class GeoWKTParser {
     public static ShapeBuilder parseExpectedType(XContentParser parser, final GeoShapeType shapeType,
                                                  final GeoShapeFieldMapper shapeMapper)
             throws IOException, ElasticsearchParseException {
-        StringReader reader = new StringReader(parser.text());
+        try (StringReader reader = new StringReader(parser.text())) {
-        try {
             boolean ignoreZValue = (shapeMapper != null && shapeMapper.ignoreZValue().value() == true);
             // setup the tokenizer; configured to read words w/o numbers
             StreamTokenizer tokenizer = new StreamTokenizer(reader);
@@ -95,8 +93,6 @@ public class GeoWKTParser {
             ShapeBuilder builder = parseGeometry(tokenizer, shapeType, ignoreZValue);
             checkEOF(tokenizer);
             return builder;
-        } finally {
-            reader.close();
         }
     }
 

server/src/main/java/org/elasticsearch/common/lucene/search/function/ScriptScoreFunction.java

@@ -24,8 +24,8 @@ import org.apache.lucene.search.DocIdSetIterator;
 import org.apache.lucene.search.Explanation;
 import org.apache.lucene.search.Scorer;
 import org.elasticsearch.script.ExplainableSearchScript;
+import org.elasticsearch.script.ScoreScript;
 import org.elasticsearch.script.Script;
-import org.elasticsearch.script.SearchScript;
 
 import java.io.IOException;
 import java.util.Objects;
@@ -58,10 +58,10 @@ public class ScriptScoreFunction extends ScoreFunction {
 
     private final Script sScript;
 
-    private final SearchScript.LeafFactory script;
+    private final ScoreScript.LeafFactory script;
 
 
-    public ScriptScoreFunction(Script sScript, SearchScript.LeafFactory script) {
+    public ScriptScoreFunction(Script sScript, ScoreScript.LeafFactory script) {
         super(CombineFunction.REPLACE);
         this.sScript = sScript;
         this.script = script;
@@ -69,7 +69,7 @@ public class ScriptScoreFunction extends ScoreFunction {
 
     @Override
     public LeafScoreFunction getLeafScoreFunction(LeafReaderContext ctx) throws IOException {
-        final SearchScript leafScript = script.newInstance(ctx);
+        final ScoreScript leafScript = script.newInstance(ctx);
         final CannedScorer scorer = new CannedScorer();
         leafScript.setScorer(scorer);
         return new LeafScoreFunction() {
@@ -78,7 +78,7 @@ public class ScriptScoreFunction extends ScoreFunction {
                 leafScript.setDocument(docId);
                 scorer.docid = docId;
                 scorer.score = subQueryScore;
-                double result = leafScript.runAsDouble();
+                double result = leafScript.execute();
                 return result;
             }
 

server/src/main/java/org/elasticsearch/index/analysis/Analysis.java

@@ -234,8 +234,8 @@ public class Analysis {
 
         final Path path = env.configFile().resolve(wordListPath);
 
-        try (BufferedReader reader = Files.newBufferedReader(path, StandardCharsets.UTF_8)) {
+        try {
-            return loadWordList(reader, "#");
+            return loadWordList(path, "#");
         } catch (CharacterCodingException ex) {
             String message = String.format(Locale.ROOT,
                 "Unsupported character encoding detected while reading %s_path: %s - files must be UTF-8 encoded",
@@ -247,15 +247,9 @@ public class Analysis {
         }
     }
 
-    public static List<String> loadWordList(Reader reader, String comment) throws IOException {
+    private static List<String> loadWordList(Path path, String comment) throws IOException {
         final List<String> result = new ArrayList<>();
-        BufferedReader br = null;
+        try (BufferedReader br = Files.newBufferedReader(path, StandardCharsets.UTF_8)) {
-        try {
-            if (reader instanceof BufferedReader) {
-                br = (BufferedReader) reader;
-            } else {
-                br = new BufferedReader(reader);
-            }
             String word;
             while ((word = br.readLine()) != null) {
                 if (!Strings.hasText(word)) {
@@ -265,9 +259,6 @@ public class Analysis {
                     result.add(word.trim());
                 }
             }
-        } finally {
-            if (br != null)
-                br.close();
         }
         return result;
     }

server/src/main/java/org/elasticsearch/index/engine/Engine.java

@@ -1424,10 +1424,6 @@ public abstract class Engine implements Closeable {
 
         @Override
         public void close() {
-            release();
-        }
-
-        public void release() {
             Releasables.close(searcher);
         }
     }

server/src/main/java/org/elasticsearch/index/get/ShardGetService.java

@@ -159,7 +159,7 @@ public final class ShardGetService extends AbstractIndexShardComponent {
                 get = indexShard.get(new Engine.Get(realtime, readFromTranslog, type, id, uidTerm)
                         .version(version).versionType(versionType));
                 if (get.exists() == false) {
-                    get.release();
+                    get.close();
                 }
             }
         }
@@ -172,7 +172,7 @@ public final class ShardGetService extends AbstractIndexShardComponent {
             // break between having loaded it from translog (so we only have _source), and having a document to load
             return innerGetLoadFromStoredFields(type, id, gFields, fetchSourceContext, get, mapperService);
         } finally {
-            get.release();
+            get.close();
         }
     }
 

server/src/main/java/org/elasticsearch/index/query/functionscore/ScriptScoreFunctionBuilder.java

@@ -28,6 +28,7 @@ import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.common.xcontent.XContentParser;
 import org.elasticsearch.index.query.QueryShardContext;
 import org.elasticsearch.index.query.QueryShardException;
+import org.elasticsearch.script.ScoreScript;
 import org.elasticsearch.script.Script;
 import org.elasticsearch.script.SearchScript;
 
@@ -92,8 +93,8 @@ public class ScriptScoreFunctionBuilder extends ScoreFunctionBuilder<ScriptScore
     @Override
     protected ScoreFunction doToFunction(QueryShardContext context) {
         try {
-            SearchScript.Factory factory = context.getScriptService().compile(script, SearchScript.SCRIPT_SCORE_CONTEXT);
+            ScoreScript.Factory factory = context.getScriptService().compile(script, ScoreScript.CONTEXT);
-            SearchScript.LeafFactory searchScript = factory.newFactory(script.getParams(), context.lookup());
+            ScoreScript.LeafFactory searchScript = factory.newFactory(script.getParams(), context.lookup());
             return new ScriptScoreFunction(script, searchScript);
         } catch (Exception e) {
             throw new QueryShardException(context, "script_score: the script could not be loaded", e);

server/src/main/java/org/elasticsearch/index/snapshots/IndexShardSnapshotStatus.java

@@ -60,31 +60,39 @@ public class IndexShardSnapshotStatus {
     private final AtomicReference<Stage> stage;
     private long startTime;
     private long totalTime;
-    private int numberOfFiles;
+    private int incrementalFileCount;
-    private int processedFiles;
+    private int totalFileCount;
+    private int processedFileCount;
     private long totalSize;
+    private long incrementalSize;
     private long processedSize;
     private long indexVersion;
     private String failure;
 
     private IndexShardSnapshotStatus(final Stage stage, final long startTime, final long totalTime,
-                                     final int numberOfFiles, final int processedFiles, final long totalSize, final long processedSize,
+                                     final int incrementalFileCount, final int totalFileCount, final int processedFileCount,
+                                     final long incrementalSize, final long totalSize, final long processedSize,
                                      final long indexVersion, final String failure) {
         this.stage = new AtomicReference<>(Objects.requireNonNull(stage));
         this.startTime = startTime;
         this.totalTime = totalTime;
-        this.numberOfFiles = numberOfFiles;
+        this.incrementalFileCount = incrementalFileCount;
-        this.processedFiles = processedFiles;
+        this.totalFileCount = totalFileCount;
+        this.processedFileCount = processedFileCount;
         this.totalSize = totalSize;
         this.processedSize = processedSize;
+        this.incrementalSize = incrementalSize;
         this.indexVersion = indexVersion;
         this.failure = failure;
     }
 
-    public synchronized Copy moveToStarted(final long startTime, final int numberOfFiles, final long totalSize) {
+    public synchronized Copy moveToStarted(final long startTime, final int incrementalFileCount, final int totalFileCount,
+                                           final long incrementalSize, final long totalSize) {
         if (stage.compareAndSet(Stage.INIT, Stage.STARTED)) {
             this.startTime = startTime;
-            this.numberOfFiles = numberOfFiles;
+            this.incrementalFileCount = incrementalFileCount;
+            this.totalFileCount = totalFileCount;
+            this.incrementalSize = incrementalSize;
             this.totalSize = totalSize;
         } else {
             throw new IllegalStateException("Unable to move the shard snapshot status to [STARTED]: " +
@@ -135,7 +143,7 @@ public class IndexShardSnapshotStatus {
      * Increments number of processed files
      */
     public synchronized void addProcessedFile(long size) {
-        processedFiles++;
+        processedFileCount++;
         processedSize += size;
     }
 
@@ -146,12 +154,14 @@ public class IndexShardSnapshotStatus {
      * @return a  {@link IndexShardSnapshotStatus.Copy}
      */
     public synchronized IndexShardSnapshotStatus.Copy asCopy() {
-        return new IndexShardSnapshotStatus.Copy(stage.get(), startTime, totalTime, numberOfFiles, processedFiles, totalSize, processedSize,
+        return new IndexShardSnapshotStatus.Copy(stage.get(), startTime, totalTime,
-                                                 indexVersion, failure);
+            incrementalFileCount, totalFileCount, processedFileCount,
+            incrementalSize, totalSize, processedSize,
+            indexVersion, failure);
     }
 
     public static IndexShardSnapshotStatus newInitializing() {
-        return new IndexShardSnapshotStatus(Stage.INIT, 0L, 0L, 0, 0, 0, 0, 0, null);
+        return new IndexShardSnapshotStatus(Stage.INIT, 0L, 0L, 0, 0, 0, 0, 0, 0, 0, null);
     }
 
     public static IndexShardSnapshotStatus newFailed(final String failure) {
@@ -159,12 +169,15 @@ public class IndexShardSnapshotStatus {
         if (failure == null) {
             throw new IllegalArgumentException("A failure description is required for a failed IndexShardSnapshotStatus");
         }
-        return new IndexShardSnapshotStatus(Stage.FAILURE, 0L, 0L, 0, 0, 0, 0, 0, failure);
+        return new IndexShardSnapshotStatus(Stage.FAILURE, 0L, 0L, 0, 0, 0, 0, 0, 0, 0, failure);
     }
 
-    public static IndexShardSnapshotStatus newDone(final long startTime, final long totalTime, final int files, final long size) {
+    public static IndexShardSnapshotStatus newDone(final long startTime, final long totalTime,
+                                                   final int incrementalFileCount, final int fileCount,
+                                                   final long incrementalSize, final long size) {
         // The snapshot is done which means the number of processed files is the same as total
-        return new IndexShardSnapshotStatus(Stage.DONE, startTime, totalTime, files, files, size, size, 0, null);
+        return new IndexShardSnapshotStatus(Stage.DONE, startTime, totalTime, incrementalFileCount, fileCount, incrementalFileCount,
+            incrementalSize, size, incrementalSize, 0, null);
     }
 
     /**
@@ -175,23 +188,28 @@ public class IndexShardSnapshotStatus {
         private final Stage stage;
         private final long startTime;
         private final long totalTime;
-        private final int numberOfFiles;
+        private final int incrementalFileCount;
-        private final int processedFiles;
+        private final int totalFileCount;
+        private final int processedFileCount;
         private final long totalSize;
         private final long processedSize;
+        private final long incrementalSize;
         private final long indexVersion;
         private final String failure;
 
         public Copy(final Stage stage, final long startTime, final long totalTime,
-                    final int numberOfFiles, final int processedFiles, final long totalSize, final long processedSize,
+                    final int incrementalFileCount, final int totalFileCount, final int processedFileCount,
+                    final long incrementalSize, final long totalSize, final long processedSize,
                     final long indexVersion, final String failure) {
             this.stage = stage;
             this.startTime = startTime;
             this.totalTime = totalTime;
-            this.numberOfFiles = numberOfFiles;
+            this.incrementalFileCount = incrementalFileCount;
-            this.processedFiles = processedFiles;
+            this.totalFileCount = totalFileCount;
+            this.processedFileCount = processedFileCount;
             this.totalSize = totalSize;
             this.processedSize = processedSize;
+            this.incrementalSize = incrementalSize;
             this.indexVersion = indexVersion;
             this.failure = failure;
         }
@@ -208,12 +226,20 @@ public class IndexShardSnapshotStatus {
             return totalTime;
         }
 
-        public int getNumberOfFiles() {
+        public int getIncrementalFileCount() {
-            return numberOfFiles;
+            return incrementalFileCount;
         }
 
-        public int getProcessedFiles() {
+        public int getTotalFileCount() {
-            return processedFiles;
+            return totalFileCount;
+        }
+
+        public int getProcessedFileCount() {
+            return processedFileCount;
+        }
+
+        public long getIncrementalSize() {
+            return incrementalSize;
         }
 
         public long getTotalSize() {
@@ -238,8 +264,10 @@ public class IndexShardSnapshotStatus {
                 "stage=" + stage +
                 ", startTime=" + startTime +
                 ", totalTime=" + totalTime +
-                ", numberOfFiles=" + numberOfFiles +
+                ", incrementalFileCount=" + incrementalFileCount +
-                ", processedFiles=" + processedFiles +
+                ", totalFileCount=" + totalFileCount +
+                ", processedFileCount=" + processedFileCount +
+                ", incrementalSize=" + incrementalSize +
                 ", totalSize=" + totalSize +
                 ", processedSize=" + processedSize +
                 ", indexVersion=" + indexVersion +

server/src/main/java/org/elasticsearch/index/snapshots/blobstore/BlobStoreIndexShardSnapshot.java

@@ -356,25 +356,28 @@ public class BlobStoreIndexShardSnapshot implements ToXContentFragment {
 
     private final long time;
 
-    private final int numberOfFiles;
+    private final int incrementalFileCount;
 
-    private final long totalSize;
+    private final long incrementalSize;
 
     private final List<FileInfo> indexFiles;
 
     /**
      * Constructs new shard snapshot metadata from snapshot metadata
      *
-     * @param snapshot      snapshot id
+     * @param snapshot              snapshot id
-     * @param indexVersion  index version
+     * @param indexVersion          index version
-     * @param indexFiles    list of files in the shard
+     * @param indexFiles            list of files in the shard
-     * @param startTime     snapshot start time
+     * @param startTime             snapshot start time
-     * @param time          snapshot running time
+     * @param time                  snapshot running time
-     * @param numberOfFiles number of files that where snapshotted
+     * @param incrementalFileCount  incremental of files that were snapshotted
-     * @param totalSize     total size of all files snapshotted
+     * @param incrementalSize       incremental size of snapshot
      */
-    public BlobStoreIndexShardSnapshot(String snapshot, long indexVersion, List<FileInfo> indexFiles, long startTime, long time,
+    public BlobStoreIndexShardSnapshot(String snapshot, long indexVersion, List<FileInfo> indexFiles,
-                                       int numberOfFiles, long totalSize) {
+                                       long startTime, long time,
+                                       int incrementalFileCount,
+                                       long incrementalSize
+    ) {
         assert snapshot != null;
         assert indexVersion >= 0;
         this.snapshot = snapshot;
@@ -382,8 +385,8 @@ public class BlobStoreIndexShardSnapshot implements ToXContentFragment {
         this.indexFiles = Collections.unmodifiableList(new ArrayList<>(indexFiles));
         this.startTime = startTime;
         this.time = time;
-        this.numberOfFiles = numberOfFiles;
+        this.incrementalFileCount = incrementalFileCount;
-        this.totalSize = totalSize;
+        this.incrementalSize = incrementalSize;
     }
 
     /**
@@ -395,8 +398,8 @@ public class BlobStoreIndexShardSnapshot implements ToXContentFragment {
         this.indexFiles = Collections.emptyList();
         this.startTime = 0;
         this.time = 0;
-        this.numberOfFiles = 0;
+        this.incrementalFileCount = 0;
-        this.totalSize = 0;
+        this.incrementalSize = 0;
     }
 
     /**
@@ -441,34 +444,51 @@ public class BlobStoreIndexShardSnapshot implements ToXContentFragment {
     }
 
     /**
-     * Returns number of files that where snapshotted
+     * Returns incremental of files that were snapshotted
      */
-    public int numberOfFiles() {
+    public int incrementalFileCount() {
-        return numberOfFiles;
+        return incrementalFileCount;
+    }
+
+    /**
+     * Returns total number of files that are referenced by this snapshot
+     */
+    public int totalFileCount() {
+        return indexFiles.size();
+    }
+
+    /**
+     * Returns incremental of files size that were snapshotted
+     */
+    public long incrementalSize() {
+        return incrementalSize;
     }
 
     /**
      * Returns total size of all files that where snapshotted
      */
     public long totalSize() {
-        return totalSize;
+        return indexFiles.stream().mapToLong(fi -> fi.metadata().length()).sum();
     }
 
     private static final String NAME = "name";
     private static final String INDEX_VERSION = "index_version";
     private static final String START_TIME = "start_time";
     private static final String TIME = "time";
-    private static final String NUMBER_OF_FILES = "number_of_files";
-    private static final String TOTAL_SIZE = "total_size";
     private static final String FILES = "files";
+    // for the sake of BWC keep the actual property names as in 6.x
+    // + there is a constraint in #fromXContent() that leads to ElasticsearchParseException("unknown parameter [incremental_file_count]");
+    private static final String INCREMENTAL_FILE_COUNT = "number_of_files";
+    private static final String INCREMENTAL_SIZE = "total_size";
 
-    private static final ParseField PARSE_NAME = new ParseField("name");
+
-    private static final ParseField PARSE_INDEX_VERSION = new ParseField("index_version", "index-version");
+    private static final ParseField PARSE_NAME = new ParseField(NAME);
-    private static final ParseField PARSE_START_TIME = new ParseField("start_time");
+    private static final ParseField PARSE_INDEX_VERSION = new ParseField(INDEX_VERSION, "index-version");
-    private static final ParseField PARSE_TIME = new ParseField("time");
+    private static final ParseField PARSE_START_TIME = new ParseField(START_TIME);
-    private static final ParseField PARSE_NUMBER_OF_FILES = new ParseField("number_of_files");
+    private static final ParseField PARSE_TIME = new ParseField(TIME);
-    private static final ParseField PARSE_TOTAL_SIZE = new ParseField("total_size");
+    private static final ParseField PARSE_INCREMENTAL_FILE_COUNT = new ParseField(INCREMENTAL_FILE_COUNT);
-    private static final ParseField PARSE_FILES = new ParseField("files");
+    private static final ParseField PARSE_INCREMENTAL_SIZE = new ParseField(INCREMENTAL_SIZE);
+    private static final ParseField PARSE_FILES = new ParseField(FILES);
 
     /**
      * Serializes shard snapshot metadata info into JSON
@@ -482,8 +502,8 @@ public class BlobStoreIndexShardSnapshot implements ToXContentFragment {
         builder.field(INDEX_VERSION, indexVersion);
         builder.field(START_TIME, startTime);
         builder.field(TIME, time);
-        builder.field(NUMBER_OF_FILES, numberOfFiles);
+        builder.field(INCREMENTAL_FILE_COUNT, incrementalFileCount);
-        builder.field(TOTAL_SIZE, totalSize);
+        builder.field(INCREMENTAL_SIZE, incrementalSize);
         builder.startArray(FILES);
         for (FileInfo fileInfo : indexFiles) {
             FileInfo.toXContent(fileInfo, builder, params);
@@ -503,8 +523,8 @@ public class BlobStoreIndexShardSnapshot implements ToXContentFragment {
         long indexVersion = -1;
         long startTime = 0;
         long time = 0;
-        int numberOfFiles = 0;
+        int incrementalFileCount = 0;
-        long totalSize = 0;
+        long incrementalSize = 0;
 
         List<FileInfo> indexFiles = new ArrayList<>();
         if (parser.currentToken() == null) { // fresh parser? move to the first token
@@ -526,10 +546,10 @@ public class BlobStoreIndexShardSnapshot implements ToXContentFragment {
                             startTime = parser.longValue();
                         } else if (PARSE_TIME.match(currentFieldName, parser.getDeprecationHandler())) {
                             time = parser.longValue();
-                        } else if (PARSE_NUMBER_OF_FILES.match(currentFieldName, parser.getDeprecationHandler())) {
+                        } else if (PARSE_INCREMENTAL_FILE_COUNT.match(currentFieldName, parser.getDeprecationHandler())) {
-                            numberOfFiles = parser.intValue();
+                            incrementalFileCount = parser.intValue();
-                        } else if (PARSE_TOTAL_SIZE.match(currentFieldName, parser.getDeprecationHandler())) {
+                        } else if (PARSE_INCREMENTAL_SIZE.match(currentFieldName, parser.getDeprecationHandler())) {
-                            totalSize = parser.longValue();
+                            incrementalSize = parser.longValue();
                         } else {
                             throw new ElasticsearchParseException("unknown parameter [{}]", currentFieldName);
                         }
@@ -549,7 +569,8 @@ public class BlobStoreIndexShardSnapshot implements ToXContentFragment {
                 }
             }
         }
+
         return new BlobStoreIndexShardSnapshot(snapshot, indexVersion, Collections.unmodifiableList(indexFiles),
-                                               startTime, time, numberOfFiles, totalSize);
+                                               startTime, time, incrementalFileCount, incrementalSize);
     }
 }

server/src/main/java/org/elasticsearch/index/termvectors/TermVectorsService.java

@@ -85,8 +85,6 @@ public class TermVectorsService  {
             termVectorsResponse.setExists(false);
             return termVectorsResponse;
         }
-        Engine.GetResult get = indexShard.get(new Engine.Get(request.realtime(), false, request.type(), request.id(), uidTerm)
-                .version(request.version()).versionType(request.versionType()));
 
         Fields termVectorsByField = null;
         AggregatedDfs dfs = null;
@@ -97,8 +95,9 @@ public class TermVectorsService  {
             handleFieldWildcards(indexShard, request);
         }
 
-        final Engine.Searcher searcher = indexShard.acquireSearcher("term_vector");
+        try (Engine.GetResult get = indexShard.get(new Engine.Get(request.realtime(), false, request.type(), request.id(), uidTerm)
-        try {
+                .version(request.version()).versionType(request.versionType()));
+                Engine.Searcher searcher = indexShard.acquireSearcher("term_vector")) {
             Fields topLevelFields = MultiFields.getFields(get.searcher() != null ? get.searcher().reader() : searcher.reader());
             DocIdAndVersion docIdAndVersion = get.docIdAndVersion();
             /* from an artificial document */
@@ -143,14 +142,12 @@ public class TermVectorsService  {
                     }
                 }
                 // write term vectors
-                termVectorsResponse.setFields(termVectorsByField, request.selectedFields(), request.getFlags(), topLevelFields, dfs, termVectorsFilter);
+                termVectorsResponse.setFields(termVectorsByField, request.selectedFields(), request.getFlags(), topLevelFields, dfs,
+                        termVectorsFilter);
             }
             termVectorsResponse.setTookInMillis(TimeUnit.NANOSECONDS.toMillis(nanoTimeSupplier.getAsLong() - startTime));
         } catch (Exception ex) {
             throw new ElasticsearchException("failed to execute term vector request", ex);
-        } finally {
-            searcher.close();
-            get.release();
         }
         return termVectorsResponse;
     }

server/src/main/java/org/elasticsearch/persistent/AllocatedPersistentTask.java

@@ -26,7 +26,6 @@ import org.elasticsearch.common.Nullable;
 import org.elasticsearch.common.unit.TimeValue;
 import org.elasticsearch.tasks.CancellableTask;
 import org.elasticsearch.tasks.Task;
-import org.elasticsearch.tasks.TaskCancelledException;
 import org.elasticsearch.tasks.TaskId;
 import org.elasticsearch.tasks.TaskManager;
 
@@ -38,18 +37,16 @@ import java.util.function.Predicate;
  * Represents a executor node operation that corresponds to a persistent task
  */
 public class AllocatedPersistentTask extends CancellableTask {
-    private volatile String persistentTaskId;
-    private volatile long allocationId;
 
     private final AtomicReference<State> state;
-    @Nullable
-    private volatile Exception failure;
 
+    private volatile String persistentTaskId;
+    private volatile long allocationId;
+    private volatile @Nullable Exception failure;
     private volatile PersistentTasksService persistentTasksService;
     private volatile Logger logger;
     private volatile TaskManager taskManager;
 
-
     public AllocatedPersistentTask(long id, String type, String action, String description, TaskId parentTask,
                                    Map<String, String> headers) {
         super(id, type, action, description, parentTask, headers);
@@ -101,24 +98,10 @@ public class AllocatedPersistentTask extends CancellableTask {
         return failure;
     }
 
-    boolean markAsCancelled() {
-        return state.compareAndSet(AllocatedPersistentTask.State.STARTED, AllocatedPersistentTask.State.PENDING_CANCEL);
-    }
-
-    public State getState() {
-        return state.get();
-    }
-
     public long getAllocationId() {
         return allocationId;
     }
 
-    public enum State {
-        STARTED,  // the task is currently running
-        PENDING_CANCEL, // the task is cancelled on master, cancelling it locally
-        COMPLETED     // the task is done running and trying to notify caller
-    }
-
     /**
      * Waits for this persistent task to have the desired state.
      */
@@ -128,6 +111,14 @@ public class AllocatedPersistentTask extends CancellableTask {
         persistentTasksService.waitForPersistentTaskStatus(persistentTaskId, predicate, timeout, listener);
     }
 
+    final boolean isCompleted() {
+        return state.get() ==  State.COMPLETED;
+    }
+
+    boolean markAsCancelled() {
+        return state.compareAndSet(State.STARTED, State.PENDING_CANCEL);
+    }
+
     public void markAsCompleted() {
         completeAndNotifyIfNeeded(null);
     }
@@ -138,11 +129,10 @@ public class AllocatedPersistentTask extends CancellableTask {
         } else {
             completeAndNotifyIfNeeded(e);
         }
-
     }
 
     private void completeAndNotifyIfNeeded(@Nullable Exception failure) {
-        State prevState = state.getAndSet(AllocatedPersistentTask.State.COMPLETED);
+        final State prevState = state.getAndSet(State.COMPLETED);
         if (prevState == State.COMPLETED) {
             logger.warn("attempt to complete task [{}] with id [{}] in the [{}] state", getAction(), getPersistentTaskId(), prevState);
         } else {
@@ -173,4 +163,10 @@ public class AllocatedPersistentTask extends CancellableTask {
             }
         }
     }
+
+    public enum State {
+        STARTED,  // the task is currently running
+        PENDING_CANCEL, // the task is cancelled on master, cancelling it locally
+        COMPLETED     // the task is done running and trying to notify caller
+    }
 }

server/src/main/java/org/elasticsearch/persistent/PersistentTasksNodeService.java

@@ -123,7 +123,7 @@ public class PersistentTasksNodeService extends AbstractComponent implements Clu
 
             for (Long id : notVisitedTasks) {
                 AllocatedPersistentTask task = runningTasks.get(id);
-                if (task.getState() == AllocatedPersistentTask.State.COMPLETED) {
+                if (task.isCompleted()) {
                     // Result was sent to the caller and the caller acknowledged acceptance of the result
                     logger.trace("Found completed persistent task [{}] with id [{}] and allocation id [{}] - removing",
                             task.getAction(), task.getPersistentTaskId(), task.getAllocationId());

server/src/main/java/org/elasticsearch/plugins/PluginsService.java

@@ -440,7 +440,7 @@ public class PluginsService extends AbstractComponent {
         List<Bundle> sortedBundles = sortBundles(bundles);
 
         for (Bundle bundle : sortedBundles) {
-            checkBundleJarHell(bundle, transitiveUrls);
+            checkBundleJarHell(JarHell.parseClassPath(), bundle, transitiveUrls);
 
             final Plugin plugin = loadBundle(bundle, loaded);
             plugins.add(new Tuple<>(bundle.plugin, plugin));
@@ -451,7 +451,7 @@ public class PluginsService extends AbstractComponent {
 
     // jar-hell check the bundle against the parent classloader and extended plugins
     // the plugin cli does it, but we do it again, in case lusers mess with jar files manually
-    static void checkBundleJarHell(Bundle bundle, Map<String, Set<URL>> transitiveUrls) {
+    static void checkBundleJarHell(Set<URL> classpath, Bundle bundle, Map<String, Set<URL>> transitiveUrls) {
         // invariant: any plugins this plugin bundle extends have already been added to transitiveUrls
         List<String> exts = bundle.plugin.getExtendedPlugins();
 
@@ -484,7 +484,6 @@ public class PluginsService extends AbstractComponent {
             JarHell.checkJarHell(urls, logger::debug); // check jarhell of each extended plugin against this plugin
             transitiveUrls.put(bundle.plugin.getName(), urls);
 
-            Set<URL> classpath = JarHell.parseClassPath();
             // check we don't have conflicting codebases with core
             Set<URL> intersection = new HashSet<>(classpath);
             intersection.retainAll(bundle.urls);

server/src/main/java/org/elasticsearch/repositories/blobstore/BlobStoreRepository.java

@@ -818,7 +818,9 @@ public abstract class BlobStoreRepository extends AbstractLifecycleComponent imp
     public IndexShardSnapshotStatus getShardSnapshotStatus(SnapshotId snapshotId, Version version, IndexId indexId, ShardId shardId) {
         Context context = new Context(snapshotId, version, indexId, shardId);
         BlobStoreIndexShardSnapshot snapshot = context.loadSnapshot();
-        return IndexShardSnapshotStatus.newDone(snapshot.startTime(), snapshot.time(), snapshot.numberOfFiles(), snapshot.totalSize());
+        return IndexShardSnapshotStatus.newDone(snapshot.startTime(), snapshot.time(),
+            snapshot.incrementalFileCount(), snapshot.totalFileCount(),
+            snapshot.incrementalSize(), snapshot.totalSize());
     }
 
     @Override
@@ -1139,9 +1141,11 @@ public abstract class BlobStoreRepository extends AbstractLifecycleComponent imp
             final List<BlobStoreIndexShardSnapshot.FileInfo> indexCommitPointFiles = new ArrayList<>();
 
             store.incRef();
+            int indexIncrementalFileCount = 0;
+            int indexTotalNumberOfFiles = 0;
+            long indexIncrementalSize = 0;
+            long indexTotalFileCount = 0;
             try {
-                int indexNumberOfFiles = 0;
-                long indexTotalFilesSize = 0;
                 ArrayList<BlobStoreIndexShardSnapshot.FileInfo> filesToSnapshot = new ArrayList<>();
                 final Store.MetadataSnapshot metadata;
                 // TODO apparently we don't use the MetadataSnapshot#.recoveryDiff(...) here but we should
@@ -1182,9 +1186,13 @@ public abstract class BlobStoreRepository extends AbstractLifecycleComponent imp
                             }
                         }
                     }
+
+                    indexTotalFileCount += md.length();
+                    indexTotalNumberOfFiles++;
+
                     if (existingFileInfo == null) {
-                        indexNumberOfFiles++;
+                        indexIncrementalFileCount++;
-                        indexTotalFilesSize += md.length();
+                        indexIncrementalSize += md.length();
                         // create a new FileInfo
                         BlobStoreIndexShardSnapshot.FileInfo snapshotFileInfo = new BlobStoreIndexShardSnapshot.FileInfo(fileNameFromGeneration(++generation), md, chunkSize());
                         indexCommitPointFiles.add(snapshotFileInfo);
@@ -1194,7 +1202,8 @@ public abstract class BlobStoreRepository extends AbstractLifecycleComponent imp
                     }
                 }
 
-                snapshotStatus.moveToStarted(startTime, indexNumberOfFiles, indexTotalFilesSize);
+                snapshotStatus.moveToStarted(startTime, indexIncrementalFileCount,
+                    indexTotalNumberOfFiles, indexIncrementalSize, indexTotalFileCount);
 
                 for (BlobStoreIndexShardSnapshot.FileInfo snapshotFileInfo : filesToSnapshot) {
                     try {
@@ -1217,8 +1226,9 @@ public abstract class BlobStoreRepository extends AbstractLifecycleComponent imp
                                                                         // snapshotStatus.startTime() is assigned on the same machine,
                                                                         // so it's safe to use with VLong
                                                                         System.currentTimeMillis() - lastSnapshotStatus.getStartTime(),
-                                                                        lastSnapshotStatus.getNumberOfFiles(),
+                                                                        lastSnapshotStatus.getIncrementalFileCount(),
-                                                                        lastSnapshotStatus.getTotalSize());
+                                                                        lastSnapshotStatus.getIncrementalSize()
+            );
 
             //TODO: The time stored in snapshot doesn't include cleanup time.
             logger.trace("[{}] [{}] writing shard snapshot file", shardId, snapshotId);

server/src/main/java/org/elasticsearch/script/ScoreScript.java

@@ -0,0 +1,102 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.elasticsearch.script;
+
+import org.apache.lucene.index.LeafReaderContext;
+import org.apache.lucene.search.Scorer;
+import org.elasticsearch.index.fielddata.ScriptDocValues;
+import org.elasticsearch.search.lookup.LeafSearchLookup;
+import org.elasticsearch.search.lookup.SearchLookup;
+
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.util.Map;
+import java.util.function.DoubleSupplier;
+
+/**
+ * A script used for adjusting the score on a per document basis.
+ */
+public abstract class ScoreScript {
+    
+    public static final String[] PARAMETERS = new String[]{};
+    
+    /** The generic runtime parameters for the script. */
+    private final Map<String, Object> params;
+    
+    /** A leaf lookup for the bound segment this script will operate on. */
+    private final LeafSearchLookup leafLookup;
+    
+    private DoubleSupplier scoreSupplier = () -> 0.0;
+    
+    public ScoreScript(Map<String, Object> params, SearchLookup lookup, LeafReaderContext leafContext) {
+        this.params = params;
+        this.leafLookup = lookup.getLeafSearchLookup(leafContext);
+    }
+    
+    public abstract double execute();
+    
+    /** Return the parameters for this script. */
+    public Map<String, Object> getParams() {
+        return params;
+    }
+    
+    /** The doc lookup for the Lucene segment this script was created for. */
+    public final Map<String, ScriptDocValues<?>> getDoc() {
+        return leafLookup.doc();
+    }
+    
+    /** Set the current document to run the script on next. */
+    public void setDocument(int docid) {
+        leafLookup.setDocument(docid);
+    }
+    
+    public void setScorer(Scorer scorer) {
+        this.scoreSupplier = () -> {
+            try {
+                return scorer.score();
+            } catch (IOException e) {
+                throw new UncheckedIOException(e);
+            }
+        };
+    }
+    
+    public double get_score() {
+        return scoreSupplier.getAsDouble();
+    }
+    
+    /** A factory to construct {@link ScoreScript} instances. */
+    public interface LeafFactory {
+    
+        /**
+         * Return {@code true} if the script needs {@code _score} calculated, or {@code false} otherwise.
+         */
+        boolean needs_score();
+        
+        ScoreScript newInstance(LeafReaderContext ctx) throws IOException;
+    }
+    
+    /** A factory to construct stateful {@link ScoreScript} factories for a specific index. */
+    public interface Factory {
+        
+        ScoreScript.LeafFactory newFactory(Map<String, Object> params, SearchLookup lookup);
+        
+    }
+    
+    public static final ScriptContext<ScoreScript.Factory> CONTEXT = new ScriptContext<>("score", ScoreScript.Factory.class);
+}

server/src/main/java/org/elasticsearch/script/ScriptModule.java

@@ -42,7 +42,7 @@ public class ScriptModule {
         CORE_CONTEXTS = Stream.of(
             SearchScript.CONTEXT,
             SearchScript.AGGS_CONTEXT,
-            SearchScript.SCRIPT_SCORE_CONTEXT,
+            ScoreScript.CONTEXT,
             SearchScript.SCRIPT_SORT_CONTEXT,
             SearchScript.TERMS_SET_QUERY_CONTEXT,
             ExecutableScript.CONTEXT,

server/src/main/java/org/elasticsearch/script/SearchScript.java

@@ -162,8 +162,6 @@ public abstract class SearchScript implements ScorerAware, ExecutableScript {
     public static final ScriptContext<Factory> AGGS_CONTEXT = new ScriptContext<>("aggs", Factory.class);
     // Can return a double. (For ScriptSortType#NUMBER only, for ScriptSortType#STRING normal CONTEXT should be used)
     public static final ScriptContext<Factory> SCRIPT_SORT_CONTEXT = new ScriptContext<>("sort", Factory.class);
-    // Can return a float
-    public static final ScriptContext<Factory> SCRIPT_SCORE_CONTEXT = new ScriptContext<>("score", Factory.class);
     // Can return a long
     public static final ScriptContext<Factory> TERMS_SET_QUERY_CONTEXT = new ScriptContext<>("terms_set", Factory.class);
 }

server/src/main/java/org/elasticsearch/search/SearchService.java

@@ -21,7 +21,6 @@ package org.elasticsearch.search;
 
 import org.apache.lucene.search.FieldDoc;
 import org.apache.lucene.search.TopDocs;
-import org.elasticsearch.core.internal.io.IOUtils;
 import org.elasticsearch.ElasticsearchException;
 import org.elasticsearch.ExceptionsHelper;
 import org.elasticsearch.action.ActionListener;
@@ -39,6 +38,7 @@ import org.elasticsearch.common.util.BigArrays;
 import org.elasticsearch.common.util.concurrent.AbstractRunnable;
 import org.elasticsearch.common.util.concurrent.ConcurrentCollections;
 import org.elasticsearch.common.util.concurrent.ConcurrentMapLong;
+import org.elasticsearch.core.internal.io.IOUtils;
 import org.elasticsearch.index.Index;
 import org.elasticsearch.index.IndexService;
 import org.elasticsearch.index.IndexSettings;
@@ -92,8 +92,8 @@ import org.elasticsearch.search.sort.SortAndFormats;
 import org.elasticsearch.search.sort.SortBuilder;
 import org.elasticsearch.search.suggest.Suggest;
 import org.elasticsearch.search.suggest.completion.CompletionSuggestion;
-import org.elasticsearch.threadpool.ThreadPool;
 import org.elasticsearch.threadpool.Scheduler.Cancellable;
+import org.elasticsearch.threadpool.ThreadPool;
 import org.elasticsearch.threadpool.ThreadPool.Names;
 import org.elasticsearch.transport.TransportRequest;
 
@@ -646,20 +646,17 @@ public class SearchService extends AbstractLifecycleComponent implements IndexEv
 
 
     public boolean freeContext(long id) {
-        final SearchContext context = removeContext(id);
+        try (SearchContext context = removeContext(id)) {
-        if (context != null) {
+            if (context != null) {
-            assert context.refCount() > 0 : " refCount must be > 0: " + context.refCount();
+                assert context.refCount() > 0 : " refCount must be > 0: " + context.refCount();
-            try {
                 context.indexShard().getSearchOperationListener().onFreeContext(context);
                 if (context.scrollContext() != null) {
                     context.indexShard().getSearchOperationListener().onFreeScrollContext(context);
                 }
-            } finally {
+                return true;
-                context.close();
             }
-            return true;
+            return false;
         }
-        return false;
     }
 
     public void freeAllScrollContexts() {

server/src/test/java/org/elasticsearch/action/admin/cluster/snapshots/SnapshotBlocksIT.java

@@ -65,11 +65,11 @@ public class SnapshotBlocksIT extends ESIntegTestCase {
             client().prepareIndex(OTHER_INDEX_NAME, "type").setSource("test", "init").execute().actionGet();
         }
 
-
         logger.info("--> register a repository");
+
         assertAcked(client().admin().cluster().preparePutRepository(REPOSITORY_NAME)
                 .setType("fs")
-                .setSettings(Settings.builder().put("location",  randomRepoPath())));
+                .setSettings(Settings.builder().put("location", randomRepoPath())));
 
         logger.info("--> verify the repository");
         VerifyRepositoryResponse verifyResponse = client().admin().cluster().prepareVerifyRepository(REPOSITORY_NAME).get();

server/src/test/java/org/elasticsearch/action/admin/cluster/snapshots/status/SnapshotStatusTests.java

@@ -91,10 +91,14 @@ public class SnapshotStatusTests extends ESTestCase {
             "    \"total\" : " + totalShards + "\n" +
             "  },\n" +
             "  \"stats\" : {\n" +
-            "    \"number_of_files\" : 0,\n" +
+            "    \"incremental\" : {\n" +
-            "    \"processed_files\" : 0,\n" +
+            "      \"file_count\" : 0,\n" +
-            "    \"total_size_in_bytes\" : 0,\n" +
+            "      \"size_in_bytes\" : 0\n" +
-            "    \"processed_size_in_bytes\" : 0,\n" +
+            "    },\n" +
+            "    \"total\" : {\n" +
+            "      \"file_count\" : 0,\n" +
+            "      \"size_in_bytes\" : 0\n" +
+            "    },\n" +
             "    \"start_time_in_millis\" : 0,\n" +
             "    \"time_in_millis\" : 0\n" +
             "  },\n" +
@@ -109,10 +113,14 @@ public class SnapshotStatusTests extends ESTestCase {
             "        \"total\" : " + totalShards + "\n" +
             "      },\n" +
             "      \"stats\" : {\n" +
-            "        \"number_of_files\" : 0,\n" +
+            "        \"incremental\" : {\n" +
-            "        \"processed_files\" : 0,\n" +
+            "          \"file_count\" : 0,\n" +
-            "        \"total_size_in_bytes\" : 0,\n" +
+            "          \"size_in_bytes\" : 0\n" +
-            "        \"processed_size_in_bytes\" : 0,\n" +
+            "        },\n" +
+            "        \"total\" : {\n" +
+            "          \"file_count\" : 0,\n" +
+            "          \"size_in_bytes\" : 0\n" +
+            "        },\n" +
             "        \"start_time_in_millis\" : 0,\n" +
             "        \"time_in_millis\" : 0\n" +
             "      },\n" +
@@ -120,10 +128,14 @@ public class SnapshotStatusTests extends ESTestCase {
             "        \"" + shardId + "\" : {\n" +
             "          \"stage\" : \"" + shardStage.toString() + "\",\n" +
             "          \"stats\" : {\n" +
-            "            \"number_of_files\" : 0,\n" +
+            "            \"incremental\" : {\n" +
-            "            \"processed_files\" : 0,\n" +
+            "              \"file_count\" : 0,\n" +
-            "            \"total_size_in_bytes\" : 0,\n" +
+            "              \"size_in_bytes\" : 0\n" +
-            "            \"processed_size_in_bytes\" : 0,\n" +
+            "            },\n" +
+            "            \"total\" : {\n" +
+            "              \"file_count\" : 0,\n" +
+            "              \"size_in_bytes\" : 0\n" +
+            "            },\n" +
             "            \"start_time_in_millis\" : 0,\n" +
             "            \"time_in_millis\" : 0\n" +
             "          }\n" +

server/src/test/java/org/elasticsearch/action/termvectors/MultiTermVectorsIT.java

@@ -23,6 +23,7 @@ import org.apache.lucene.index.DirectoryReader;
 import org.apache.lucene.index.Fields;
 import org.apache.lucene.index.Terms;
 import org.apache.lucene.index.TermsEnum;
+import org.elasticsearch.ElasticsearchException;
 import org.elasticsearch.action.admin.indices.alias.Alias;
 import org.elasticsearch.common.lucene.uid.Versions;
 import org.elasticsearch.common.settings.Settings;
@@ -111,7 +112,8 @@ public class MultiTermVectorsIT extends AbstractTermVectorsTestCase {
         checkTermTexts(response.getResponses()[1].getResponse().getFields().terms("field"), new String[]{"value1"});
         assertThat(response.getResponses()[2].getFailure(), notNullValue());
         assertThat(response.getResponses()[2].getFailure().getId(), equalTo("1"));
-        assertThat(response.getResponses()[2].getFailure().getCause(), instanceOf(VersionConflictEngineException.class));
+        assertThat(response.getResponses()[2].getFailure().getCause(), instanceOf(ElasticsearchException.class));
+        assertThat(response.getResponses()[2].getFailure().getCause().getCause(), instanceOf(VersionConflictEngineException.class));
 
         //Version from Lucene index
         refresh();
@@ -132,7 +134,8 @@ public class MultiTermVectorsIT extends AbstractTermVectorsTestCase {
         checkTermTexts(response.getResponses()[1].getResponse().getFields().terms("field"), new String[]{"value1"});
         assertThat(response.getResponses()[2].getFailure(), notNullValue());
         assertThat(response.getResponses()[2].getFailure().getId(), equalTo("1"));
-        assertThat(response.getResponses()[2].getFailure().getCause(), instanceOf(VersionConflictEngineException.class));
+        assertThat(response.getResponses()[2].getFailure().getCause(), instanceOf(ElasticsearchException.class));
+        assertThat(response.getResponses()[2].getFailure().getCause().getCause(), instanceOf(VersionConflictEngineException.class));
 
 
         for (int i = 0; i < 3; i++) {
@@ -155,7 +158,8 @@ public class MultiTermVectorsIT extends AbstractTermVectorsTestCase {
         assertThat(response.getResponses()[1].getFailure(), notNullValue());
         assertThat(response.getResponses()[1].getFailure().getId(), equalTo("2"));
         assertThat(response.getResponses()[1].getIndex(), equalTo("test"));
-        assertThat(response.getResponses()[1].getFailure().getCause(), instanceOf(VersionConflictEngineException.class));
+        assertThat(response.getResponses()[1].getFailure().getCause(), instanceOf(ElasticsearchException.class));
+        assertThat(response.getResponses()[1].getFailure().getCause().getCause(), instanceOf(VersionConflictEngineException.class));
         assertThat(response.getResponses()[2].getId(), equalTo("2"));
         assertThat(response.getResponses()[2].getIndex(), equalTo("test"));
         assertThat(response.getResponses()[2].getFailure(), nullValue());
@@ -180,7 +184,8 @@ public class MultiTermVectorsIT extends AbstractTermVectorsTestCase {
         assertThat(response.getResponses()[1].getFailure(), notNullValue());
         assertThat(response.getResponses()[1].getFailure().getId(), equalTo("2"));
         assertThat(response.getResponses()[1].getIndex(), equalTo("test"));
-        assertThat(response.getResponses()[1].getFailure().getCause(), instanceOf(VersionConflictEngineException.class));
+        assertThat(response.getResponses()[1].getFailure().getCause(), instanceOf(ElasticsearchException.class));
+        assertThat(response.getResponses()[1].getFailure().getCause().getCause(), instanceOf(VersionConflictEngineException.class));
         assertThat(response.getResponses()[2].getId(), equalTo("2"));
         assertThat(response.getResponses()[2].getIndex(), equalTo("test"));
         assertThat(response.getResponses()[2].getFailure(), nullValue());

server/src/test/java/org/elasticsearch/common/cache/CacheTests.java

@@ -471,7 +471,7 @@ public class CacheTests extends ESTestCase {
                     keys.add(key);
                 } else {
                     // invalidate with incorrect value
-                    cache.invalidate(key, Integer.toString(key * randomIntBetween(2, 10)));
+                    cache.invalidate(key, Integer.toString(key + randomIntBetween(2, 10)));
                 }
             }
         }
@@ -506,7 +506,7 @@ public class CacheTests extends ESTestCase {
                     invalidated.add(i);
                 } else {
                     // invalidate with incorrect value
-                    cache.invalidate(i, Integer.toString(i * randomIntBetween(2, 10)));
+                    cache.invalidate(i, Integer.toString(i + randomIntBetween(2, 10)));
                 }
             }
         }

server/src/test/java/org/elasticsearch/index/engine/InternalEngineTests.java

@@ -21,6 +21,7 @@ package org.elasticsearch.index.engine;
 
 import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
 import com.carrotsearch.randomizedtesting.generators.RandomNumbers;
+
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -793,7 +794,7 @@ public class InternalEngineTests extends EngineTestCase {
             while (flushFinished.get() == false) {
                 Engine.GetResult previousGetResult = latestGetResult.get();
                 if (previousGetResult != null) {
-                    previousGetResult.release();
+                    previousGetResult.close();
                 }
                 latestGetResult.set(engine.get(newGet(true, doc), searcherFactory));
                 if (latestGetResult.get().exists() == false) {
@@ -807,7 +808,7 @@ public class InternalEngineTests extends EngineTestCase {
         flushFinished.set(true);
         getThread.join();
         assertTrue(latestGetResult.get().exists());
-        latestGetResult.get().release();
+        latestGetResult.get().close();
     }
 
     public void testSimpleOperations() throws Exception {
@@ -830,21 +831,20 @@ public class InternalEngineTests extends EngineTestCase {
         searchResult.close();
 
         // but, not there non realtime
-        Engine.GetResult getResult = engine.get(newGet(false, doc), searcherFactory);
+        try (Engine.GetResult getResult = engine.get(newGet(false, doc), searcherFactory)) {
-        assertThat(getResult.exists(), equalTo(false));
+            assertThat(getResult.exists(), equalTo(false));
-        getResult.release();
+        }
 
         // but, we can still get it (in realtime)
-        getResult = engine.get(newGet(true, doc), searcherFactory);
+        try (Engine.GetResult getResult = engine.get(newGet(true, doc), searcherFactory)) {
-        assertThat(getResult.exists(), equalTo(true));
+            assertThat(getResult.exists(), equalTo(true));
-        assertThat(getResult.docIdAndVersion(), notNullValue());
+            assertThat(getResult.docIdAndVersion(), notNullValue());
-        getResult.release();
+        }
 
         // but not real time is not yet visible
-        getResult = engine.get(newGet(false, doc), searcherFactory);
+        try (Engine.GetResult getResult = engine.get(newGet(false, doc), searcherFactory)) {
-        assertThat(getResult.exists(), equalTo(false));
+            assertThat(getResult.exists(), equalTo(false));
-        getResult.release();
+        }
-
 
         // refresh and it should be there
         engine.refresh("test");
@@ -856,10 +856,10 @@ public class InternalEngineTests extends EngineTestCase {
         searchResult.close();
 
         // also in non realtime
-        getResult = engine.get(newGet(false, doc), searcherFactory);
+        try (Engine.GetResult getResult = engine.get(newGet(false, doc), searcherFactory)) {
-        assertThat(getResult.exists(), equalTo(true));
+            assertThat(getResult.exists(), equalTo(true));
-        assertThat(getResult.docIdAndVersion(), notNullValue());
+            assertThat(getResult.docIdAndVersion(), notNullValue());
-        getResult.release();
+        }
 
         // now do an update
         document = testDocument();
@@ -876,10 +876,10 @@ public class InternalEngineTests extends EngineTestCase {
         searchResult.close();
 
         // but, we can still get it (in realtime)
-        getResult = engine.get(newGet(true, doc), searcherFactory);
+        try (Engine.GetResult getResult = engine.get(newGet(true, doc), searcherFactory)) {
-        assertThat(getResult.exists(), equalTo(true));
+            assertThat(getResult.exists(), equalTo(true));
-        assertThat(getResult.docIdAndVersion(), notNullValue());
+            assertThat(getResult.docIdAndVersion(), notNullValue());
-        getResult.release();
+        }
 
         // refresh and it should be updated
         engine.refresh("test");
@@ -901,9 +901,9 @@ public class InternalEngineTests extends EngineTestCase {
         searchResult.close();
 
         // but, get should not see it (in realtime)
-        getResult = engine.get(newGet(true, doc), searcherFactory);
+        try (Engine.GetResult getResult = engine.get(newGet(true, doc), searcherFactory)) {
-        assertThat(getResult.exists(), equalTo(false));
+            assertThat(getResult.exists(), equalTo(false));
-        getResult.release();
+        }
 
         // refresh and it should be deleted
         engine.refresh("test");
@@ -941,10 +941,10 @@ public class InternalEngineTests extends EngineTestCase {
         engine.flush();
 
         // and, verify get (in real time)
-        getResult = engine.get(newGet(true, doc), searcherFactory);
+        try (Engine.GetResult getResult = engine.get(newGet(true, doc), searcherFactory)) {
-        assertThat(getResult.exists(), equalTo(true));
+            assertThat(getResult.exists(), equalTo(true));
-        assertThat(getResult.docIdAndVersion(), notNullValue());
+            assertThat(getResult.docIdAndVersion(), notNullValue());
-        getResult.release();
+        }
 
         // make sure we can still work with the engine
         // now do an update
@@ -4156,7 +4156,7 @@ public class InternalEngineTests extends EngineTestCase {
                     new Term("_id", parsedDocument.id()),
                     parsedDocument,
                     SequenceNumbers.UNASSIGNED_SEQ_NO,
-                    (long) randomIntBetween(1, 8),
+                    randomIntBetween(1, 8),
                     Versions.MATCH_ANY,
                     VersionType.INTERNAL,
                     Engine.Operation.Origin.PRIMARY,
@@ -4172,7 +4172,7 @@ public class InternalEngineTests extends EngineTestCase {
                     id,
                     new Term("_id", parsedDocument.id()),
                     SequenceNumbers.UNASSIGNED_SEQ_NO,
-                    (long) randomIntBetween(1, 8),
+                    randomIntBetween(1, 8),
                     Versions.MATCH_ANY,
                     VersionType.INTERNAL,
                     Engine.Operation.Origin.PRIMARY,

server/src/test/java/org/elasticsearch/index/shard/IndexShardTests.java

@@ -1861,10 +1861,11 @@ public class IndexShardTests extends IndexShardTestCase {
         indexDoc(shard, "_doc", "1", "{\"foobar\" : \"bar\"}");
         shard.refresh("test");
 
-        Engine.GetResult getResult = shard.get(new Engine.Get(false, false, "test", "1", new Term(IdFieldMapper.NAME, Uid.encodeId("1"))));
+        try (Engine.GetResult getResult = shard
-        assertTrue(getResult.exists());
+                .get(new Engine.Get(false, false, "test", "1", new Term(IdFieldMapper.NAME, Uid.encodeId("1"))))) {
-        assertNotNull(getResult.searcher());
+            assertTrue(getResult.exists());
-        getResult.release();
+            assertNotNull(getResult.searcher());
+        }
         try (Engine.Searcher searcher = shard.acquireSearcher("test")) {
             TopDocs search = searcher.searcher().search(new TermQuery(new Term("foo", "bar")), 10);
             assertEquals(search.totalHits, 1);
@@ -1895,11 +1896,12 @@ public class IndexShardTests extends IndexShardTestCase {
             search = searcher.searcher().search(new TermQuery(new Term("foobar", "bar")), 10);
             assertEquals(search.totalHits, 1);
         }
-        getResult = newShard.get(new Engine.Get(false, false, "test", "1", new Term(IdFieldMapper.NAME, Uid.encodeId("1"))));
+        try (Engine.GetResult getResult = newShard
-        assertTrue(getResult.exists());
+                .get(new Engine.Get(false, false, "test", "1", new Term(IdFieldMapper.NAME, Uid.encodeId("1"))))) {
-        assertNotNull(getResult.searcher()); // make sure get uses the wrapped reader
+            assertTrue(getResult.exists());
-        assertTrue(getResult.searcher().reader() instanceof FieldMaskingReader);
+            assertNotNull(getResult.searcher()); // make sure get uses the wrapped reader
-        getResult.release();
+            assertTrue(getResult.searcher().reader() instanceof FieldMaskingReader);
+        }
 
         closeShards(newShard);
     }

server/src/test/java/org/elasticsearch/persistent/PersistentTasksNodeServiceTests.java

@@ -52,6 +52,7 @@ import java.util.concurrent.atomic.AtomicLong;
 import java.util.concurrent.atomic.AtomicReference;
 
 import static org.hamcrest.Matchers.empty;
+import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.sameInstance;
 import static org.hamcrest.core.IsEqual.equalTo;
 import static org.mockito.Matchers.any;
@@ -73,7 +74,6 @@ public class PersistentTasksNodeServiceTests extends ESTestCase {
         threadPool = new TestThreadPool(getClass().getName());
     }
 
-
     @Override
     @After
     public void tearDown() throws Exception {
@@ -95,7 +95,7 @@ public class PersistentTasksNodeServiceTests extends ESTestCase {
         return state.build();
     }
 
-    public void testStartTask() throws Exception {
+    public void testStartTask() {
         PersistentTasksService persistentTasksService = mock(PersistentTasksService.class);
         @SuppressWarnings("unchecked") PersistentTasksExecutor<TestParams> action = mock(PersistentTasksExecutor.class);
         when(action.getExecutor()).thenReturn(ThreadPool.Names.SAME);
@@ -131,8 +131,8 @@ public class PersistentTasksNodeServiceTests extends ESTestCase {
 
         if (added == false) {
             logger.info("No local node action was added");
-
         }
+
         MetaData.Builder metaData = MetaData.builder(state.metaData());
         metaData.putCustom(PersistentTasksCustomMetaData.TYPE, tasks.build());
         ClusterState newClusterState = ClusterState.builder(state).metaData(metaData).build();
@@ -149,6 +149,7 @@ public class PersistentTasksNodeServiceTests extends ESTestCase {
 
             // Make sure action wasn't called again
             assertThat(executor.executions.size(), equalTo(1));
+            assertThat(executor.get(0).task.isCompleted(), is(false));
 
             // Start another task on this node
             state = newClusterState;
@@ -157,10 +158,15 @@ public class PersistentTasksNodeServiceTests extends ESTestCase {
 
             // Make sure action was called this time
             assertThat(executor.size(), equalTo(2));
+            assertThat(executor.get(1).task.isCompleted(), is(false));
 
             // Finish both tasks
             executor.get(0).task.markAsFailed(new RuntimeException());
             executor.get(1).task.markAsCompleted();
+
+            assertThat(executor.get(0).task.isCompleted(), is(true));
+            assertThat(executor.get(1).task.isCompleted(), is(true));
+
             String failedTaskId = executor.get(0).task.getPersistentTaskId();
             String finishedTaskId = executor.get(1).task.getPersistentTaskId();
             executor.clear();
@@ -186,7 +192,6 @@ public class PersistentTasksNodeServiceTests extends ESTestCase {
             // Make sure action was only allocated on this node once
             assertThat(executor.size(), equalTo(1));
         }
-
     }
 
     public void testParamsStatusAndNodeTaskAreDelegated() throws Exception {
@@ -300,7 +305,6 @@ public class PersistentTasksNodeServiceTests extends ESTestCase {
 
         // Check the the task is now removed from task manager
         assertThat(taskManager.getTasks().values(), empty());
-
     }
 
     private <Params extends PersistentTaskParams> ClusterState addTask(ClusterState state, String action, Params params,

server/src/test/java/org/elasticsearch/plugins/PluginsServiceTests.java

@@ -23,6 +23,7 @@ import org.apache.log4j.Level;
 import org.apache.lucene.util.Constants;
 import org.apache.lucene.util.LuceneTestCase;
 import org.elasticsearch.Version;
+import org.elasticsearch.bootstrap.JarHell;
 import org.elasticsearch.common.io.PathUtils;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.env.Environment;
@@ -443,7 +444,7 @@ public class PluginsServiceTests extends ESTestCase {
             "MyPlugin", Collections.singletonList("dep"), false);
         PluginsService.Bundle bundle = new PluginsService.Bundle(info1, pluginDir);
         IllegalStateException e = expectThrows(IllegalStateException.class, () ->
-            PluginsService.checkBundleJarHell(bundle, transitiveDeps));
+            PluginsService.checkBundleJarHell(JarHell.parseClassPath(), bundle, transitiveDeps));
         assertEquals("failed to load plugin myplugin due to jar hell", e.getMessage());
         assertThat(e.getCause().getMessage(), containsString("jar hell! duplicate codebases with extended plugin"));
     }
@@ -462,7 +463,7 @@ public class PluginsServiceTests extends ESTestCase {
             "MyPlugin", Arrays.asList("dep1", "dep2"), false);
         PluginsService.Bundle bundle = new PluginsService.Bundle(info1, pluginDir);
         IllegalStateException e = expectThrows(IllegalStateException.class, () ->
-            PluginsService.checkBundleJarHell(bundle, transitiveDeps));
+            PluginsService.checkBundleJarHell(JarHell.parseClassPath(), bundle, transitiveDeps));
         assertEquals("failed to load plugin myplugin due to jar hell", e.getMessage());
         assertThat(e.getCause().getMessage(), containsString("jar hell!"));
         assertThat(e.getCause().getMessage(), containsString("duplicate codebases"));
@@ -479,7 +480,7 @@ public class PluginsServiceTests extends ESTestCase {
             "MyPlugin", Collections.emptyList(), false);
         PluginsService.Bundle bundle = new PluginsService.Bundle(info1, pluginDir);
         IllegalStateException e = expectThrows(IllegalStateException.class, () ->
-            PluginsService.checkBundleJarHell(bundle, new HashMap<>()));
+            PluginsService.checkBundleJarHell(JarHell.parseClassPath(), bundle, new HashMap<>()));
         assertEquals("failed to load plugin myplugin due to jar hell", e.getMessage());
         assertThat(e.getCause().getMessage(), containsString("jar hell!"));
         assertThat(e.getCause().getMessage(), containsString("Level"));
@@ -498,7 +499,7 @@ public class PluginsServiceTests extends ESTestCase {
             "MyPlugin", Collections.singletonList("dep"), false);
         PluginsService.Bundle bundle = new PluginsService.Bundle(info1, pluginDir);
         IllegalStateException e = expectThrows(IllegalStateException.class, () ->
-            PluginsService.checkBundleJarHell(bundle, transitiveDeps));
+            PluginsService.checkBundleJarHell(JarHell.parseClassPath(), bundle, transitiveDeps));
         assertEquals("failed to load plugin myplugin due to jar hell", e.getMessage());
         assertThat(e.getCause().getMessage(), containsString("jar hell!"));
         assertThat(e.getCause().getMessage(), containsString("DummyClass1"));
@@ -521,7 +522,7 @@ public class PluginsServiceTests extends ESTestCase {
             "MyPlugin", Arrays.asList("dep1", "dep2"), false);
         PluginsService.Bundle bundle = new PluginsService.Bundle(info1, pluginDir);
         IllegalStateException e = expectThrows(IllegalStateException.class, () ->
-            PluginsService.checkBundleJarHell(bundle, transitiveDeps));
+            PluginsService.checkBundleJarHell(JarHell.parseClassPath(), bundle, transitiveDeps));
         assertEquals("failed to load plugin myplugin due to jar hell", e.getMessage());
         assertThat(e.getCause().getMessage(), containsString("jar hell!"));
         assertThat(e.getCause().getMessage(), containsString("DummyClass2"));
@@ -543,7 +544,7 @@ public class PluginsServiceTests extends ESTestCase {
         PluginInfo info1 = new PluginInfo("myplugin", "desc", "1.0", Version.CURRENT, "1.8",
             "MyPlugin", Arrays.asList("dep1", "dep2"), false);
         PluginsService.Bundle bundle = new PluginsService.Bundle(info1, pluginDir);
-        PluginsService.checkBundleJarHell(bundle, transitiveDeps);
+        PluginsService.checkBundleJarHell(JarHell.parseClassPath(), bundle, transitiveDeps);
         Set<URL> deps = transitiveDeps.get("myplugin");
         assertNotNull(deps);
         assertThat(deps, containsInAnyOrder(pluginJar.toUri().toURL(), dep1Jar.toUri().toURL(), dep2Jar.toUri().toURL()));

server/src/test/java/org/elasticsearch/search/functionscore/ExplainableScriptIT.java

@@ -30,14 +30,14 @@ import org.elasticsearch.index.fielddata.ScriptDocValues;
 import org.elasticsearch.plugins.Plugin;
 import org.elasticsearch.plugins.ScriptPlugin;
 import org.elasticsearch.script.ExplainableSearchScript;
+import org.elasticsearch.script.ScoreScript;
 import org.elasticsearch.script.Script;
 import org.elasticsearch.script.ScriptContext;
 import org.elasticsearch.script.ScriptEngine;
 import org.elasticsearch.script.ScriptType;
-import org.elasticsearch.script.SearchScript;
 import org.elasticsearch.search.SearchHit;
 import org.elasticsearch.search.SearchHits;
-import org.elasticsearch.search.lookup.LeafDocLookup;
+import org.elasticsearch.search.lookup.SearchLookup;
 import org.elasticsearch.test.ESIntegTestCase;
 import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
 import org.elasticsearch.test.ESIntegTestCase.Scope;
@@ -76,16 +76,17 @@ public class ExplainableScriptIT extends ESIntegTestCase {
                 @Override
                 public <T> T compile(String scriptName, String scriptSource, ScriptContext<T> context, Map<String, String> params) {
                     assert scriptSource.equals("explainable_script");
-                    assert context == SearchScript.SCRIPT_SCORE_CONTEXT;
+                    assert context == ScoreScript.CONTEXT;
-                    SearchScript.Factory factory = (p, lookup) -> new SearchScript.LeafFactory() {
+                    ScoreScript.Factory factory = (params1, lookup) -> new ScoreScript.LeafFactory() {
-                        @Override
-                        public SearchScript newInstance(LeafReaderContext context) throws IOException {
-                            return new MyScript(lookup.doc().getLeafDocLookup(context));
-                        }
                         @Override
                         public boolean needs_score() {
                             return false;
                         }
+
+                        @Override
+                        public ScoreScript newInstance(LeafReaderContext ctx) throws IOException {
+                            return new MyScript(params1, lookup, ctx);
+                        }
                     };
                     return context.factoryClazz.cast(factory);
                 }
@@ -93,28 +94,21 @@ public class ExplainableScriptIT extends ESIntegTestCase {
         }
     }
 
-    static class MyScript extends SearchScript implements ExplainableSearchScript {
+    static class MyScript extends ScoreScript implements ExplainableSearchScript {
-        LeafDocLookup docLookup;
 
-        MyScript(LeafDocLookup docLookup) {
+        MyScript(Map<String, Object> params, SearchLookup lookup, LeafReaderContext leafContext) {
-            super(null, null, null);
+            super(params, lookup, leafContext);
-            this.docLookup = docLookup;
         }
-
+    
-        @Override
-        public void setDocument(int doc) {
-            docLookup.setDocument(doc);
-        }
-
         @Override
         public Explanation explain(Explanation subQueryScore) throws IOException {
             Explanation scoreExp = Explanation.match(subQueryScore.getValue(), "_score: ", subQueryScore);
-            return Explanation.match((float) (runAsDouble()), "This script returned " + runAsDouble(), scoreExp);
+            return Explanation.match((float) (execute()), "This script returned " + execute(), scoreExp);
         }
 
         @Override
-        public double runAsDouble() {
+        public double execute() {
-            return ((Number) ((ScriptDocValues) docLookup.get("number_field")).getValues().get(0)).doubleValue();
+            return ((Number) ((ScriptDocValues) getDoc().get("number_field")).getValues().get(0)).doubleValue();
         }
     }
 

server/src/test/java/org/elasticsearch/snapshots/DedicatedClusterSnapshotRestoreIT.java

@@ -23,10 +23,12 @@ import com.carrotsearch.hppc.IntHashSet;
 import com.carrotsearch.hppc.IntSet;
 import org.elasticsearch.action.ActionFuture;
 import org.elasticsearch.action.admin.cluster.repositories.put.PutRepositoryResponse;
+import org.elasticsearch.action.admin.cluster.repositories.verify.VerifyRepositoryResponse;
 import org.elasticsearch.action.admin.cluster.snapshots.create.CreateSnapshotResponse;
 import org.elasticsearch.action.admin.cluster.snapshots.delete.DeleteSnapshotResponse;
 import org.elasticsearch.action.admin.cluster.snapshots.get.GetSnapshotsResponse;
 import org.elasticsearch.action.admin.cluster.snapshots.restore.RestoreSnapshotResponse;
+import org.elasticsearch.action.admin.cluster.snapshots.status.SnapshotStats;
 import org.elasticsearch.action.admin.cluster.snapshots.status.SnapshotStatus;
 import org.elasticsearch.action.admin.cluster.snapshots.status.SnapshotsStatusResponse;
 import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse;
@@ -83,7 +85,12 @@ import org.elasticsearch.test.TestCustomMetaData;
 import org.elasticsearch.test.rest.FakeRestRequest;
 
 import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
@@ -102,6 +109,7 @@ import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.greaterThan;
 import static org.hamcrest.Matchers.greaterThanOrEqualTo;
 import static org.hamcrest.Matchers.hasSize;
+import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.lessThan;
 import static org.hamcrest.Matchers.not;
 import static org.hamcrest.Matchers.notNullValue;
@@ -1019,6 +1027,129 @@ public class DedicatedClusterSnapshotRestoreIT extends AbstractSnapshotIntegTest
         assertThat(snapshots.get(0).getState().completed(), equalTo(true));
     }
 
+    public void testSnapshotTotalAndIncrementalSizes() throws IOException {
+        Client client = client();
+        final String indexName = "test-blocks-1";
+        final String repositoryName = "repo-" + indexName;
+        final String snapshot0 = "snapshot-0";
+        final String snapshot1 = "snapshot-1";
+
+        createIndex(indexName);
+
+        int docs = between(10, 100);
+        for (int i = 0; i < docs; i++) {
+            client.prepareIndex(indexName, "type").setSource("test", "init").execute().actionGet();
+        }
+
+        logger.info("--> register a repository");
+
+        final Path repoPath = randomRepoPath();
+        assertAcked(client.admin().cluster().preparePutRepository(repositoryName)
+            .setType("fs")
+            .setSettings(Settings.builder().put("location", repoPath)));
+
+        logger.info("--> create a snapshot");
+        client.admin().cluster().prepareCreateSnapshot(repositoryName, snapshot0)
+            .setIncludeGlobalState(true)
+            .setWaitForCompletion(true)
+            .get();
+
+        SnapshotsStatusResponse response = client.admin().cluster().prepareSnapshotStatus(repositoryName)
+            .setSnapshots(snapshot0)
+            .get();
+
+        List<SnapshotStatus> snapshots = response.getSnapshots();
+
+        List<Path> snapshot0Files = scanSnapshotFolder(repoPath);
+        assertThat(snapshots, hasSize(1));
+
+        final int snapshot0FileCount = snapshot0Files.size();
+        final long snapshot0FileSize = calculateTotalFilesSize(snapshot0Files);
+
+        SnapshotStats stats = snapshots.get(0).getStats();
+
+        assertThat(stats.getTotalFileCount(), is(snapshot0FileCount));
+        assertThat(stats.getTotalSize(), is(snapshot0FileSize));
+
+        assertThat(stats.getIncrementalFileCount(), equalTo(snapshot0FileCount));
+        assertThat(stats.getIncrementalSize(), equalTo(snapshot0FileSize));
+
+        assertThat(stats.getIncrementalFileCount(), equalTo(stats.getProcessedFileCount()));
+        assertThat(stats.getIncrementalSize(), equalTo(stats.getProcessedSize()));
+
+        // add few docs - less than initially
+        docs = between(1, 5);
+        for (int i = 0; i < docs; i++) {
+            client.prepareIndex(indexName, "type").setSource("test", "test" + i).execute().actionGet();
+        }
+
+        // create another snapshot
+        // total size has to grow and has to be equal to files on fs
+        assertThat(client.admin().cluster()
+                .prepareCreateSnapshot(repositoryName, snapshot1)
+                .setWaitForCompletion(true).get().status(),
+            equalTo(RestStatus.OK));
+
+        //  drop 1st one to avoid miscalculation as snapshot reuses some files of prev snapshot
+        assertTrue(client.admin().cluster()
+            .prepareDeleteSnapshot(repositoryName, snapshot0)
+            .get().isAcknowledged());
+
+        response = client.admin().cluster().prepareSnapshotStatus(repositoryName)
+            .setSnapshots(snapshot1)
+            .get();
+
+        final List<Path> snapshot1Files = scanSnapshotFolder(repoPath);
+
+        final int snapshot1FileCount = snapshot1Files.size();
+        final long snapshot1FileSize = calculateTotalFilesSize(snapshot1Files);
+
+        snapshots = response.getSnapshots();
+
+        SnapshotStats anotherStats = snapshots.get(0).getStats();
+
+        ArrayList<Path> snapshotFilesDiff = new ArrayList<>(snapshot1Files);
+        snapshotFilesDiff.removeAll(snapshot0Files);
+
+        assertThat(anotherStats.getIncrementalFileCount(), equalTo(snapshotFilesDiff.size()));
+        assertThat(anotherStats.getIncrementalSize(), equalTo(calculateTotalFilesSize(snapshotFilesDiff)));
+
+        assertThat(anotherStats.getIncrementalFileCount(), equalTo(anotherStats.getProcessedFileCount()));
+        assertThat(anotherStats.getIncrementalSize(), equalTo(anotherStats.getProcessedSize()));
+
+        assertThat(stats.getTotalSize(), lessThan(anotherStats.getTotalSize()));
+        assertThat(stats.getTotalFileCount(), lessThan(anotherStats.getTotalFileCount()));
+
+        assertThat(anotherStats.getTotalFileCount(), is(snapshot1FileCount));
+        assertThat(anotherStats.getTotalSize(), is(snapshot1FileSize));
+    }
+
+    private long calculateTotalFilesSize(List<Path> files) {
+        return files.stream().mapToLong(f -> {
+            try {
+                return Files.size(f);
+            } catch (IOException e) {
+                throw new UncheckedIOException(e);
+            }
+        }).sum();
+    }
+
+
+    private List<Path> scanSnapshotFolder(Path repoPath) throws IOException {
+        List<Path> files = new ArrayList<>();
+        Files.walkFileTree(repoPath, new SimpleFileVisitor<Path>(){
+                @Override
+                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+                    if (file.getFileName().toString().startsWith("__")){
+                        files.add(file);
+                    }
+                    return super.visitFile(file, attrs);
+                }
+            }
+        );
+        return files;
+    }
+
     public static class SnapshottableMetadata extends TestCustomMetaData {
         public static final String TYPE = "test_snapshottable";
 

server/src/test/java/org/elasticsearch/snapshots/SharedClusterSnapshotRestoreIT.java

@@ -2066,7 +2066,7 @@ public class SharedClusterSnapshotRestoreIT extends AbstractSnapshotIntegTestCas
             SnapshotStatus snapshotStatus = client.admin().cluster().prepareSnapshotStatus("test-repo").setSnapshots("test").get().getSnapshots().get(0);
             List<SnapshotIndexShardStatus> shards = snapshotStatus.getShards();
             for (SnapshotIndexShardStatus status : shards) {
-                assertThat(status.getStats().getProcessedFiles(), greaterThan(1));
+                assertThat(status.getStats().getProcessedFileCount(), greaterThan(1));
             }
         }
 
@@ -2078,7 +2078,7 @@ public class SharedClusterSnapshotRestoreIT extends AbstractSnapshotIntegTestCas
             SnapshotStatus snapshotStatus = client.admin().cluster().prepareSnapshotStatus("test-repo").setSnapshots("test-1").get().getSnapshots().get(0);
             List<SnapshotIndexShardStatus> shards = snapshotStatus.getShards();
             for (SnapshotIndexShardStatus status : shards) {
-                assertThat(status.getStats().getProcessedFiles(), equalTo(0));
+                assertThat(status.getStats().getProcessedFileCount(), equalTo(0));
             }
         }
 
@@ -2091,7 +2091,7 @@ public class SharedClusterSnapshotRestoreIT extends AbstractSnapshotIntegTestCas
             SnapshotStatus snapshotStatus = client.admin().cluster().prepareSnapshotStatus("test-repo").setSnapshots("test-2").get().getSnapshots().get(0);
             List<SnapshotIndexShardStatus> shards = snapshotStatus.getShards();
             for (SnapshotIndexShardStatus status : shards) {
-                assertThat(status.getStats().getProcessedFiles(), equalTo(2)); // we flush before the snapshot such that we have to process the segments_N files plus the .del file
+                assertThat(status.getStats().getProcessedFileCount(), equalTo(2)); // we flush before the snapshot such that we have to process the segments_N files plus the .del file
             }
         }
     }

test/framework/src/main/java/org/elasticsearch/index/shard/IndexShardTestCase.java

@@ -632,7 +632,7 @@ public abstract class IndexShardTestCase extends ESTestCase {
 
         final IndexShardSnapshotStatus.Copy lastSnapshotStatus = snapshotStatus.asCopy();
         assertEquals(IndexShardSnapshotStatus.Stage.DONE, lastSnapshotStatus.getStage());
-        assertEquals(shard.snapshotStoreMetadata().size(), lastSnapshotStatus.getNumberOfFiles());
+        assertEquals(shard.snapshotStoreMetadata().size(), lastSnapshotStatus.getTotalFileCount());
         assertNull(lastSnapshotStatus.getFailure());
     }
 

test/framework/src/main/java/org/elasticsearch/script/MockScriptEngine.java

@@ -25,7 +25,6 @@ import org.elasticsearch.index.similarity.ScriptedSimilarity.Doc;
 import org.elasticsearch.index.similarity.ScriptedSimilarity.Field;
 import org.elasticsearch.index.similarity.ScriptedSimilarity.Query;
 import org.elasticsearch.index.similarity.ScriptedSimilarity.Term;
-import org.elasticsearch.index.similarity.SimilarityService;
 import org.elasticsearch.search.aggregations.pipeline.movfn.MovingFunctionScript;
 import org.elasticsearch.search.aggregations.pipeline.movfn.MovingFunctions;
 import org.elasticsearch.search.lookup.LeafSearchLookup;
@@ -36,7 +35,6 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.function.Function;
-import java.util.function.Predicate;
 
 import static java.util.Collections.emptyMap;
 
@@ -114,6 +112,9 @@ public class MockScriptEngine implements ScriptEngine {
         } else if (context.instanceClazz.equals(MovingFunctionScript.class)) {
             MovingFunctionScript.Factory factory = mockCompiled::createMovingFunctionScript;
             return context.factoryClazz.cast(factory);
+        } else if (context.instanceClazz.equals(ScoreScript.class)) {
+            ScoreScript.Factory factory = new MockScoreScript(script);
+            return context.factoryClazz.cast(factory);
         }
         throw new IllegalArgumentException("mock script engine does not know how to handle context [" + context.name + "]");
     }
@@ -342,5 +343,45 @@ public class MockScriptEngine implements ScriptEngine {
             return MovingFunctions.unweightedAvg(values);
         }
     }
+    
+    public class MockScoreScript implements ScoreScript.Factory {
+    
+        private final Function<Map<String, Object>, Object> scripts;
+        
+        MockScoreScript(Function<Map<String, Object>, Object> scripts) {
+            this.scripts = scripts;
+        }
+        
+        @Override
+        public ScoreScript.LeafFactory newFactory(Map<String, Object> params, SearchLookup lookup) {
+            return new ScoreScript.LeafFactory() {
+                @Override
+                public boolean needs_score() {
+                    return true;
+                }
+    
+                @Override
+                public ScoreScript newInstance(LeafReaderContext ctx) throws IOException {
+                    Scorer[] scorerHolder = new Scorer[1];
+                    return new ScoreScript(params, lookup, ctx) {
+                        @Override
+                        public double execute() {
+                            Map<String, Object> vars = new HashMap<>(getParams());
+                            vars.put("doc", getDoc());
+                            if (scorerHolder[0] != null) {
+                                vars.put("_score", new ScoreAccessor(scorerHolder[0]));
+                            }
+                            return ((Number) scripts.apply(vars)).doubleValue();
+                        }
+    
+                        @Override
+                        public void setScorer(Scorer scorer) {
+                            scorerHolder[0] = scorer;
+                        }
+                    };
+                }
+            };
+        }
+    }
 
 }

x-pack/plugin/core/src/main/java/org/elasticsearch/license/XPackInfoResponse.java

@@ -123,13 +123,15 @@ public class XPackInfoResponse extends ActionResponse {
 
         @Override
         public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
-            return builder.startObject()
+            builder.startObject()
-                    .field("uid", uid)
+                .field("uid", uid)
-                    .field("type", type)
+                .field("type", type)
-                    .field("mode", mode)
+                .field("mode", mode)
-                    .field("status", status.label())
+                .field("status", status.label());
-                    .timeField("expiry_date_in_millis", "expiry_date", expiryDate)
+            if (expiryDate != LicenseService.BASIC_SELF_GENERATED_LICENSE_EXPIRATION_MILLIS) {
-                    .endObject();
+                builder.timeField("expiry_date_in_millis", "expiry_date", expiryDate);
+            }
+            return builder.endObject();
         }
 
         public void writeTo(StreamOutput out) throws IOException {

x-pack/plugin/sql/jdbc/build.gradle

@@ -52,24 +52,20 @@ dependencies {
         compile (xpackProject('plugin:sql:sql-shared-client')) {
             transitive = false
         }
-        compile (xpackProject('plugin:sql:sql-proto')) {
+        compile (xpackProject('plugin:sql:sql-shared-proto')) {
             transitive = false
         }
     } else {
         bundled (xpackProject('plugin:sql:sql-shared-client')) {
             transitive = false
         }
-        bundled (xpackProject('plugin:sql:sql-proto')) {
+        bundled (xpackProject('plugin:sql:sql-shared-proto')) {
             transitive = false
         }
     }
-    compile (project(':server')) {
-        transitive = false
-    }
     compile (project(':libs:x-content')) {
         transitive = false
     }
-    compile "org.apache.lucene:lucene-core:${versions.lucene}"
     compile 'joda-time:joda-time:2.9.9'
     compile project(':libs:elasticsearch-core')
     runtime "com.fasterxml.jackson.core:jackson-core:${versions.jackson}"
@@ -80,15 +76,13 @@ dependencies {
 }
 
 dependencyLicenses {
-    mapping from: /sql-proto.*/, to: 'elasticsearch'
+    mapping from: /sql-shared-proto.*/, to: 'elasticsearch'
     mapping from: /sql-shared-client.*/, to: 'elasticsearch'
     mapping from: /jackson-.*/, to: 'jackson'
-    mapping from: /lucene-.*/, to: 'lucene'
     mapping from: /elasticsearch-core.*/, to: 'elasticsearch'
-    ignoreSha 'sql-proto'
+    ignoreSha 'sql-shared-proto'
     ignoreSha 'sql-shared-client'
     ignoreSha 'elasticsearch'
-    ignoreSha 'elasticsearch-core'
 }
 
 /*

x-pack/plugin/sql/jdbc/licenses/lucene-LICENSE.txt

@@ -1,475 +0,0 @@
-
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-from those sources:
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-/*
- * Copyright 2001-2004 Unicode, Inc.
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- * remains attached.
- */
-
-
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-derived from Python 2.4.2 sources available at
-http://www.python.org. Full license is here:
-
-  http://www.python.org/download/releases/2.4.2/license/
-
-Some code in core/src/java/org/apache/lucene/util/UnicodeUtil.java was
-derived from Python 3.1.2 sources available at
-http://www.python.org. Full license is here:
-
-  http://www.python.org/download/releases/3.1.2/license/
-
-Some code in core/src/java/org/apache/lucene/util/automaton was
-derived from Brics automaton sources available at
-www.brics.dk/automaton/. Here is the copyright from those sources:
-
-/*
- * Copyright (c) 2001-2009 Anders Moeller
- * All rights reserved.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- 
-The levenshtein automata tables in core/src/java/org/apache/lucene/util/automaton 
-were automatically generated with the moman/finenight FSA package.
-Here is the copyright for those sources:
-
-# Copyright (c) 2010, Jean-Philippe Barrette-LaPierre, <jpb@rrette.com>
-#
-# Permission is hereby granted, free of charge, to any person
-# obtaining a copy of this software and associated documentation
-# files (the "Software"), to deal in the Software without
-# restriction, including without limitation the rights to use,
-# copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the
-# Software is furnished to do so, subject to the following
-# conditions:
-#
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-# OTHER DEALINGS IN THE SOFTWARE.
-
-Some code in core/src/java/org/apache/lucene/util/UnicodeUtil.java was
-derived from ICU (http://www.icu-project.org)
-The full license is available here: 
-  http://source.icu-project.org/repos/icu/icu/trunk/license.html
-
-/*
- * Copyright (C) 1999-2010, International Business Machines
- * Corporation and others.  All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy 
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights 
- * to use, copy, modify, merge, publish, distribute, and/or sell copies of the 
- * Software, and to permit persons to whom the Software is furnished to do so, 
- * provided that the above copyright notice(s) and this permission notice appear 
- * in all copies of the Software and that both the above copyright notice(s) and
- * this permission notice appear in supporting documentation.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 
- * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE 
- * LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR 
- * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER 
- * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 
- * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder shall not 
- * be used in advertising or otherwise to promote the sale, use or other 
- * dealings in this Software without prior written authorization of the 
- * copyright holder.
- */
- 
-The following license applies to the Snowball stemmers:
-
-Copyright (c) 2001, Dr Martin Porter
-Copyright (c) 2002, Richard Boulton
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright notice,
-    * this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-    * notice, this list of conditions and the following disclaimer in the
-    * documentation and/or other materials provided with the distribution.
-    * Neither the name of the copyright holders nor the names of its contributors
-    * may be used to endorse or promote products derived from this software
-    * without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-The following license applies to the KStemmer:
-
-Copyright © 2003,
-Center for Intelligent Information Retrieval,
-University of Massachusetts, Amherst.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this
-list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-this list of conditions and the following disclaimer in the documentation
-and/or other materials provided with the distribution.
-
-3. The names "Center for Intelligent Information Retrieval" and
-"University of Massachusetts" must not be used to endorse or promote products
-derived from this software without prior written permission. To obtain
-permission, contact info@ciir.cs.umass.edu.
-
-THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF MASSACHUSETTS AND OTHER CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
-The following license applies to the Morfologik project:
-
-Copyright (c) 2006 Dawid Weiss
-Copyright (c) 2007-2011 Dawid Weiss, Marcin Miłkowski
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification, 
-are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright notice, 
-    this list of conditions and the following disclaimer.
-    
-    * Redistributions in binary form must reproduce the above copyright notice, 
-    this list of conditions and the following disclaimer in the documentation 
-    and/or other materials provided with the distribution.
-    
-    * Neither the name of Morfologik nor the names of its contributors 
-    may be used to endorse or promote products derived from this software 
-    without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
----
-
-The dictionary comes from Morfologik project. Morfologik uses data from 
-Polish ispell/myspell dictionary hosted at http://www.sjp.pl/slownik/en/ and 
-is licenced on the terms of (inter alia) LGPL and Creative Commons 
-ShareAlike. The part-of-speech tags were added in Morfologik project and
-are not found in the data from sjp.pl. The tagset is similar to IPI PAN
-tagset.
-
----
-
-The following license applies to the Morfeusz project,
-used by org.apache.lucene.analysis.morfologik.
-
-BSD-licensed dictionary of Polish (SGJP)
-http://sgjp.pl/morfeusz/
-
-Copyright © 2011 Zygmunt Saloni, Włodzimierz Gruszczyński, 
-             Marcin Woliński, Robert Wołosz
-
-All rights reserved.
-
-Redistribution and  use in  source and binary  forms, with  or without
-modification, are permitted provided that the following conditions are
-met:
-
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the
-   distribution.
-
-THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDERS “AS IS” AND ANY EXPRESS
-OR  IMPLIED WARRANTIES,  INCLUDING, BUT  NOT LIMITED  TO,  THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED.  IN NO EVENT  SHALL COPYRIGHT  HOLDERS OR  CONTRIBUTORS BE
-LIABLE FOR  ANY DIRECT,  INDIRECT, INCIDENTAL, SPECIAL,  EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES  (INCLUDING, BUT NOT LIMITED  TO, PROCUREMENT OF
-SUBSTITUTE  GOODS OR  SERVICES;  LOSS  OF USE,  DATA,  OR PROFITS;  OR
-BUSINESS INTERRUPTION) HOWEVER CAUSED  AND ON ANY THEORY OF LIABILITY,
-WHETHER IN  CONTRACT, STRICT LIABILITY, OR  TORT (INCLUDING NEGLIGENCE
-OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
-IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

x-pack/plugin/sql/jdbc/licenses/lucene-NOTICE.txt

@@ -1,192 +0,0 @@
-Apache Lucene
-Copyright 2014 The Apache Software Foundation
-
-This product includes software developed at
-The Apache Software Foundation (http://www.apache.org/).
-
-Includes software from other Apache Software Foundation projects,
-including, but not limited to:
- - Apache Ant
- - Apache Jakarta Regexp
- - Apache Commons
- - Apache Xerces
-
-ICU4J, (under analysis/icu) is licensed under an MIT styles license
-and Copyright (c) 1995-2008 International Business Machines Corporation and others
-
-Some data files (under analysis/icu/src/data) are derived from Unicode data such
-as the Unicode Character Database. See http://unicode.org/copyright.html for more
-details.
-
-Brics Automaton (under core/src/java/org/apache/lucene/util/automaton) is 
-BSD-licensed, created by Anders Møller. See http://www.brics.dk/automaton/
-
-The levenshtein automata tables (under core/src/java/org/apache/lucene/util/automaton) were
-automatically generated with the moman/finenight FSA library, created by
-Jean-Philippe Barrette-LaPierre. This library is available under an MIT license,
-see http://sites.google.com/site/rrettesite/moman and 
-http://bitbucket.org/jpbarrette/moman/overview/
-
-The class org.apache.lucene.util.WeakIdentityMap was derived from
-the Apache CXF project and is Apache License 2.0.
-
-The Google Code Prettify is Apache License 2.0.
-See http://code.google.com/p/google-code-prettify/
-
-JUnit (junit-4.10) is licensed under the Common Public License v. 1.0
-See http://junit.sourceforge.net/cpl-v10.html
-
-This product includes code (JaspellTernarySearchTrie) from Java Spelling Checkin
-g Package (jaspell): http://jaspell.sourceforge.net/
-License: The BSD License (http://www.opensource.org/licenses/bsd-license.php)
-
-The snowball stemmers in
-  analysis/common/src/java/net/sf/snowball
-were developed by Martin Porter and Richard Boulton.
-The snowball stopword lists in
-  analysis/common/src/resources/org/apache/lucene/analysis/snowball
-were developed by Martin Porter and Richard Boulton.
-The full snowball package is available from
-  http://snowball.tartarus.org/
-
-The KStem stemmer in
-  analysis/common/src/org/apache/lucene/analysis/en
-was developed by Bob Krovetz and Sergio Guzman-Lara (CIIR-UMass Amherst)
-under the BSD-license.
-
-The Arabic,Persian,Romanian,Bulgarian, Hindi and Bengali analyzers (common) come with a default
-stopword list that is BSD-licensed created by Jacques Savoy.  These files reside in:
-analysis/common/src/resources/org/apache/lucene/analysis/ar/stopwords.txt,
-analysis/common/src/resources/org/apache/lucene/analysis/fa/stopwords.txt,
-analysis/common/src/resources/org/apache/lucene/analysis/ro/stopwords.txt,
-analysis/common/src/resources/org/apache/lucene/analysis/bg/stopwords.txt,
-analysis/common/src/resources/org/apache/lucene/analysis/hi/stopwords.txt,
-analysis/common/src/resources/org/apache/lucene/analysis/bn/stopwords.txt
-See http://members.unine.ch/jacques.savoy/clef/index.html.
-
-The German,Spanish,Finnish,French,Hungarian,Italian,Portuguese,Russian and Swedish light stemmers
-(common) are based on BSD-licensed reference implementations created by Jacques Savoy and
-Ljiljana Dolamic. These files reside in:
-analysis/common/src/java/org/apache/lucene/analysis/de/GermanLightStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/de/GermanMinimalStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/es/SpanishLightStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/fi/FinnishLightStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/fr/FrenchLightStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/fr/FrenchMinimalStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/hu/HungarianLightStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/it/ItalianLightStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/pt/PortugueseLightStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/ru/RussianLightStemmer.java
-analysis/common/src/java/org/apache/lucene/analysis/sv/SwedishLightStemmer.java
-
-The Stempel analyzer (stempel) includes BSD-licensed software developed 
-by the Egothor project http://egothor.sf.net/, created by Leo Galambos, Martin Kvapil,
-and Edmond Nolan.
-
-The Polish analyzer (stempel) comes with a default
-stopword list that is BSD-licensed created by the Carrot2 project. The file resides
-in stempel/src/resources/org/apache/lucene/analysis/pl/stopwords.txt.
-See http://project.carrot2.org/license.html.
-
-The SmartChineseAnalyzer source code (smartcn) was
-provided by Xiaoping Gao and copyright 2009 by www.imdict.net.
-
-WordBreakTestUnicode_*.java (under modules/analysis/common/src/test/) 
-is derived from Unicode data such as the Unicode Character Database. 
-See http://unicode.org/copyright.html for more details.
-
-The Morfologik analyzer (morfologik) includes BSD-licensed software
-developed by Dawid Weiss and Marcin Miłkowski (http://morfologik.blogspot.com/).
-
-Morfologik uses data from Polish ispell/myspell dictionary
-(http://www.sjp.pl/slownik/en/) licenced on the terms of (inter alia)
-LGPL and Creative Commons ShareAlike.
-
-Morfologic includes data from BSD-licensed dictionary of Polish (SGJP)
-(http://sgjp.pl/morfeusz/)
-
-Servlet-api.jar and javax.servlet-*.jar are under the CDDL license, the original
-source code for this can be found at http://www.eclipse.org/jetty/downloads.php
-
-===========================================================================
-Kuromoji Japanese Morphological Analyzer - Apache Lucene Integration
-===========================================================================
-
-This software includes a binary and/or source version of data from
-
-  mecab-ipadic-2.7.0-20070801
-
-which can be obtained from
-
-  http://atilika.com/releases/mecab-ipadic/mecab-ipadic-2.7.0-20070801.tar.gz
-
-or
-
-  http://jaist.dl.sourceforge.net/project/mecab/mecab-ipadic/2.7.0-20070801/mecab-ipadic-2.7.0-20070801.tar.gz
-
-===========================================================================
-mecab-ipadic-2.7.0-20070801 Notice
-===========================================================================
-
-Nara Institute of Science and Technology (NAIST),
-the copyright holders, disclaims all warranties with regard to this
-software, including all implied warranties of merchantability and
-fitness, in no event shall NAIST be liable for
-any special, indirect or consequential damages or any damages
-whatsoever resulting from loss of use, data or profits, whether in an
-action of contract, negligence or other tortuous action, arising out
-of or in connection with the use or performance of this software.
-
-A large portion of the dictionary entries
-originate from ICOT Free Software.  The following conditions for ICOT
-Free Software applies to the current dictionary as well.
-
-Each User may also freely distribute the Program, whether in its
-original form or modified, to any third party or parties, PROVIDED
-that the provisions of Section 3 ("NO WARRANTY") will ALWAYS appear
-on, or be attached to, the Program, which is distributed substantially
-in the same form as set out herein and that such intended
-distribution, if actually made, will neither violate or otherwise
-contravene any of the laws and regulations of the countries having
-jurisdiction over the User or the intended distribution itself.
-
-NO WARRANTY
-
-The program was produced on an experimental basis in the course of the
-research and development conducted during the project and is provided
-to users as so produced on an experimental basis.  Accordingly, the
-program is provided without any warranty whatsoever, whether express,
-implied, statutory or otherwise.  The term "warranty" used herein
-includes, but is not limited to, any warranty of the quality,
-performance, merchantability and fitness for a particular purpose of
-the program and the nonexistence of any infringement or violation of
-any right of any third party.
-
-Each user of the program will agree and understand, and be deemed to
-have agreed and understood, that there is no warranty whatsoever for
-the program and, accordingly, the entire risk arising from or
-otherwise connected with the program is assumed by the user.
-
-Therefore, neither ICOT, the copyright holder, or any other
-organization that participated in or was otherwise related to the
-development of the program and their respective officials, directors,
-officers and other employees shall be held liable for any and all
-damages, including, without limitation, general, special, incidental
-and consequential damages, arising out of or otherwise in connection
-with the use or inability to use the program or any product, material
-or result produced or otherwise obtained by using the program,
-regardless of whether they have been advised of, or otherwise had
-knowledge of, the possibility of such damages at any time during the
-project or thereafter.  Each user will be deemed to have agreed to the
-foregoing by his or her commencement of use of the program.  The term
-"use" as used herein includes, but is not limited to, the use,
-modification, copying and distribution of the program and the
-production of secondary products from the program.
-
-In the case where the program, whether in its original form or
-modified, was distributed or delivered to or received by a user from
-any person, organization or entity other than ICOT, unless it makes or
-grants independently of ICOT any specific warranty to the user in
-writing, such person, organization or entity, will also be exempted
-from and not be held liable to the user for any such damages as noted
-above as far as the program is concerned.

x-pack/plugin/sql/jdbc/licenses/lucene-core-7.4.0-snapshot-cc2ee23050.jar.sha1

@@ -1 +0,0 @@
-e118e4d05070378516b9055184b74498ba528dee

x-pack/plugin/sql/jdbc/src/test/java/org/elasticsearch/xpack/sql/jdbc/jdbc/TypeConverterTests.java

@@ -10,9 +10,8 @@ import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.common.xcontent.XContentHelper;
 import org.elasticsearch.common.xcontent.json.JsonXContent;
 import org.elasticsearch.test.ESTestCase;
-import org.elasticsearch.xpack.sql.plugin.SqlQueryResponse;
-import org.elasticsearch.xpack.sql.proto.Mode;
 import org.joda.time.DateTime;
+import org.joda.time.ReadableDateTime;
 
 import java.sql.JDBCType;
 
@@ -51,7 +50,11 @@ public class TypeConverterTests extends ESTestCase {
         XContentBuilder builder = JsonXContent.contentBuilder();
         builder.startObject();
         builder.field("value");
-        SqlQueryResponse.value(builder, Mode.JDBC, value);
+        if (value instanceof ReadableDateTime) {
+            builder.value(((ReadableDateTime) value).getMillis());
+        } else {
+            builder.value(value);
+        }
         builder.endObject();
         builder.close();
         Object copy = XContentHelper.convertToMap(BytesReference.bytes(builder), false, builder.contentType()).v2().get("value");

x-pack/plugin/sql/sql-cli/src/main/java/org/elasticsearch/xpack/sql/cli/command/CliSession.java

@@ -8,7 +8,6 @@ package org.elasticsearch.xpack.sql.cli.command;
 import org.elasticsearch.xpack.sql.client.HttpClient;
 import org.elasticsearch.xpack.sql.client.shared.ClientException;
 import org.elasticsearch.xpack.sql.client.shared.Version;
-import org.elasticsearch.xpack.sql.plugin.AbstractSqlQueryRequest;
 import org.elasticsearch.xpack.sql.proto.MainResponse;
 import org.elasticsearch.xpack.sql.proto.Protocol;
 

x-pack/plugin/sql/sql-cli/src/test/java/org/elasticsearch/xpack/sql/cli/CliSessionTests.java

@@ -28,7 +28,7 @@ public class CliSessionTests extends ESTestCase {
     public void testProperConnection() throws Exception {
         HttpClient httpClient = mock(HttpClient.class);
         when(httpClient.serverInfo()).thenReturn(new MainResponse(randomAlphaOfLength(5), org.elasticsearch.Version.CURRENT.toString(),
-                ClusterName.DEFAULT.value(), UUIDs.randomBase64UUID(), Build.CURRENT));
+                ClusterName.DEFAULT.value(), UUIDs.randomBase64UUID()));
         CliSession cliSession = new CliSession(httpClient);
         cliSession.checkConnection();
         verify(httpClient, times(1)).serverInfo();
@@ -58,7 +58,7 @@ public class CliSessionTests extends ESTestCase {
         }
         when(httpClient.serverInfo()).thenReturn(new MainResponse(randomAlphaOfLength(5),
                 org.elasticsearch.Version.fromString(major + "." + minor + ".23").toString(),
-                ClusterName.DEFAULT.value(), UUIDs.randomBase64UUID(), Build.CURRENT));
+                ClusterName.DEFAULT.value(), UUIDs.randomBase64UUID()));
         CliSession cliSession = new CliSession(httpClient);
         expectThrows(ClientException.class, cliSession::checkConnection);
         verify(httpClient, times(1)).serverInfo();

x-pack/plugin/sql/sql-cli/src/test/java/org/elasticsearch/xpack/sql/cli/command/ServerInfoCliCommandTests.java

@@ -36,7 +36,7 @@ public class ServerInfoCliCommandTests extends ESTestCase {
         HttpClient client = mock(HttpClient.class);
         CliSession cliSession = new CliSession(client);
         when(client.serverInfo()).thenReturn(new MainResponse("my_node", "1.2.3",
-                new ClusterName("my_cluster").value(), UUIDs.randomBase64UUID(), Build.CURRENT));
+                new ClusterName("my_cluster").value(), UUIDs.randomBase64UUID()));
         ServerInfoCliCommand cliCommand = new ServerInfoCliCommand();
         assertTrue(cliCommand.handle(testTerminal, cliSession, "info"));
         assertEquals(testTerminal.toString(), "Node:<em>my_node</em> Cluster:<em>my_cluster</em> Version:<em>1.2.3</em>\n");

x-pack/plugin/sql/sql-proto/build.gradle

@@ -24,6 +24,7 @@ dependencies {
     compile (project(':libs:x-content')) {
         transitive = false
     }
+    compile xpackProject('plugin:sql:sql-shared-proto')
     compile "org.apache.lucene:lucene-core:${versions.lucene}"
     compile 'joda-time:joda-time:2.9.9'
     runtime "com.fasterxml.jackson.core:jackson-core:${versions.jackson}"

x-pack/plugin/sql/sql-shared-client/build.gradle

@@ -10,14 +10,14 @@ apply plugin: 'elasticsearch.build'
 description = 'Code shared between jdbc and cli'
 
 dependencies {
-    compile xpackProject('plugin:sql:sql-proto')
+    compile xpackProject('plugin:sql:sql-shared-proto')
     compile "com.fasterxml.jackson.core:jackson-core:${versions.jackson}"
     testCompile "org.elasticsearch.test:framework:${version}"
 }
 
 dependencyLicenses {
     mapping from: /jackson-.*/, to: 'jackson'
-    mapping from: /sql-proto.*/, to: 'elasticsearch'
+    mapping from: /sql-shared-proto.*/, to: 'elasticsearch'
     mapping from: /elasticsearch-cli.*/, to: 'elasticsearch'
     mapping from: /elasticsearch-core.*/, to: 'elasticsearch'
     mapping from: /lucene-.*/, to: 'lucene'

x-pack/plugin/sql/sql-shared-client/src/main/java/org/elasticsearch/xpack/sql/client/HttpClient.java

@@ -5,14 +5,12 @@
  */
 package org.elasticsearch.xpack.sql.client;
 
-import org.elasticsearch.common.bytes.BytesReference;
 import org.elasticsearch.common.collect.Tuple;
-import org.elasticsearch.common.io.stream.BytesStreamOutput;
 import org.elasticsearch.common.unit.TimeValue;
-import org.elasticsearch.common.xcontent.LoggingDeprecationHandler;
+import org.elasticsearch.common.xcontent.DeprecationHandler;
 import org.elasticsearch.common.xcontent.NamedXContentRegistry;
 import org.elasticsearch.common.xcontent.ToXContent;
-import org.elasticsearch.common.xcontent.XContentHelper;
+import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.common.xcontent.XContentParser;
 import org.elasticsearch.common.xcontent.XContentType;
 import org.elasticsearch.core.internal.io.Streams;
@@ -30,6 +28,8 @@ import org.elasticsearch.xpack.sql.proto.SqlClearCursorResponse;
 import org.elasticsearch.xpack.sql.proto.SqlQueryRequest;
 import org.elasticsearch.xpack.sql.proto.SqlQueryResponse;
 
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.security.AccessController;
@@ -67,8 +67,8 @@ public class HttpClient {
     public SqlQueryResponse queryInit(String query, int fetchSize) throws SQLException {
         // TODO allow customizing the time zone - this is what session set/reset/get should be about
         SqlQueryRequest sqlRequest = new SqlQueryRequest(Mode.PLAIN, query, Collections.emptyList(), null,
-                TimeZone.getTimeZone("UTC"), fetchSize, TimeValue.timeValueMillis(cfg.queryTimeout()),
+            TimeZone.getTimeZone("UTC"), fetchSize, TimeValue.timeValueMillis(cfg.queryTimeout()),
-                TimeValue.timeValueMillis(cfg.pageTimeout()));
+            TimeValue.timeValueMillis(cfg.pageTimeout()));
         return query(sqlRequest);
     }
 
@@ -84,83 +84,92 @@ public class HttpClient {
 
     public boolean queryClose(String cursor) throws SQLException {
         SqlClearCursorResponse response = post(Protocol.CLEAR_CURSOR_REST_ENDPOINT,
-                new SqlClearCursorRequest(Mode.PLAIN, cursor),
+            new SqlClearCursorRequest(Mode.PLAIN, cursor),
-                SqlClearCursorResponse::fromXContent);
+            SqlClearCursorResponse::fromXContent);
         return response.isSucceeded();
     }
 
     private <Request extends AbstractSqlRequest, Response> Response post(String path, Request request,
             CheckedFunction<XContentParser, Response, IOException> responseParser)
             throws SQLException {
-        BytesReference requestBytes = toXContent(request);
+        byte[] requestBytes = toXContent(request);
         String query = "error_trace&mode=" + request.mode();
-        Tuple<XContentType, BytesReference> response =
+        Tuple<XContentType, byte[]> response =
-                AccessController.doPrivileged((PrivilegedAction<ResponseOrException<Tuple<XContentType, BytesReference>>>) () ->
+            AccessController.doPrivileged((PrivilegedAction<ResponseOrException<Tuple<XContentType, byte[]>>>) () ->
                 JreHttpUrlConnection.http(path, query, cfg, con ->
-                        con.request(
+                    con.request(
-                                requestBytes::writeTo,
+                        (out) -> out.write(requestBytes),
-                                this::readFrom,
+                        this::readFrom,
-                                "POST"
+                        "POST"
-                        )
+                    )
                 )).getResponseOrThrowException();
         return fromXContent(response.v1(), response.v2(), responseParser);
     }
 
     private boolean head(String path, long timeoutInMs) throws SQLException {
         ConnectionConfiguration pingCfg = new ConnectionConfiguration(cfg.baseUri(), cfg.connectionString(),
-                cfg.connectTimeout(), timeoutInMs, cfg.queryTimeout(), cfg.pageTimeout(), cfg.pageSize(),
+            cfg.connectTimeout(), timeoutInMs, cfg.queryTimeout(), cfg.pageTimeout(), cfg.pageSize(),
-                cfg.authUser(), cfg.authPass(), cfg.sslConfig(), cfg.proxyConfig());
+            cfg.authUser(), cfg.authPass(), cfg.sslConfig(), cfg.proxyConfig());
         try {
             return AccessController.doPrivileged((PrivilegedAction<Boolean>) () ->
-                    JreHttpUrlConnection.http(path, "error_trace", pingCfg, JreHttpUrlConnection::head));
+                JreHttpUrlConnection.http(path, "error_trace", pingCfg, JreHttpUrlConnection::head));
         } catch (ClientException ex) {
             throw new SQLException("Cannot ping server", ex);
         }
     }
 
     private <Response> Response get(String path, CheckedFunction<XContentParser, Response, IOException> responseParser)
-            throws SQLException {
+        throws SQLException {
-        Tuple<XContentType, BytesReference> response =
+        Tuple<XContentType, byte[]> response =
-                AccessController.doPrivileged((PrivilegedAction<ResponseOrException<Tuple<XContentType, BytesReference>>>) () ->
+            AccessController.doPrivileged((PrivilegedAction<ResponseOrException<Tuple<XContentType, byte[]>>>) () ->
                 JreHttpUrlConnection.http(path, "error_trace", cfg, con ->
-                        con.request(
+                    con.request(
-                                null,
+                        null,
-                                this::readFrom,
+                        this::readFrom,
-                                "GET"
+                        "GET"
-                        )
+                    )
                 )).getResponseOrThrowException();
         return fromXContent(response.v1(), response.v2(), responseParser);
     }
 
-    private static <Request extends ToXContent> BytesReference toXContent(Request xContent) {
+    private static <Request extends ToXContent> byte[] toXContent(Request xContent) {
-        try {
+        try(ByteArrayOutputStream buffer = new ByteArrayOutputStream()) {
-            return XContentHelper.toXContent(xContent, REQUEST_BODY_CONTENT_TYPE, false);
+            try (XContentBuilder xContentBuilder = new XContentBuilder(REQUEST_BODY_CONTENT_TYPE.xContent(), buffer)) {
+                if (xContent.isFragment()) {
+                    xContentBuilder.startObject();
+                }
+                xContent.toXContent(xContentBuilder, ToXContent.EMPTY_PARAMS);
+                if (xContent.isFragment()) {
+                    xContentBuilder.endObject();
+                }
+            }
+            return buffer.toByteArray();
         } catch (IOException ex) {
             throw new ClientException("Cannot serialize request", ex);
         }
     }
 
-    private Tuple<XContentType, BytesReference> readFrom(InputStream inputStream, Function<String, String> headers) {
+    private Tuple<XContentType, byte[]> readFrom(InputStream inputStream, Function<String, String> headers) {
         String contentType = headers.apply("Content-Type");
         XContentType xContentType = XContentType.fromMediaTypeOrFormat(contentType);
         if (xContentType == null) {
             throw new IllegalStateException("Unsupported Content-Type: " + contentType);
         }
-        BytesStreamOutput out = new BytesStreamOutput();
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
         try {
             Streams.copy(inputStream, out);
         } catch (IOException ex) {
             throw new ClientException("Cannot deserialize response", ex);
         }
-        return new Tuple<>(xContentType, out.bytes());
+        return new Tuple<>(xContentType, out.toByteArray());
 
     }
 
-    private <Response> Response fromXContent(XContentType xContentType, BytesReference bytesReference,
+    private <Response> Response fromXContent(XContentType xContentType, byte[] bytesReference,
                                              CheckedFunction<XContentParser, Response, IOException> responseParser) {
-        try (InputStream stream = bytesReference.streamInput();
+        try (InputStream stream = new ByteArrayInputStream(bytesReference);
              XContentParser parser = xContentType.xContent().createParser(registry,
-                     LoggingDeprecationHandler.INSTANCE, stream)) {
+                 DeprecationHandler.THROW_UNSUPPORTED_OPERATION, stream)) {
             return responseParser.apply(parser);
         } catch (IOException ex) {
             throw new ClientException("Cannot parse response", ex);

x-pack/plugin/sql/sql-shared-proto/build.gradle

@@ -0,0 +1,35 @@
+
+/*
+ * This project contains XContent protocol classes shared between server and http client
+ */
+
+import org.elasticsearch.gradle.precommit.PrecommitTasks
+
+apply plugin: 'elasticsearch.build'
+
+description = 'Request and response objects shared by the cli, jdbc ' +
+        'and the Elasticsearch plugin'
+
+dependencies {
+    compile (project(':libs:elasticsearch-core')) {
+        transitive = false
+    }
+    compile (project(':libs:x-content')) {
+        transitive = false
+    }
+    compile 'joda-time:joda-time:2.9.9'
+    runtime "com.fasterxml.jackson.core:jackson-core:${versions.jackson}"
+
+    testCompile "org.elasticsearch.test:framework:${version}"
+}
+
+forbiddenApisMain {
+    //sql does not depend on server, so only jdk signatures should be checked
+    signaturesURLs = [PrecommitTasks.getResource('/forbidden/jdk-signatures.txt')]
+}
+
+dependencyLicenses {
+    mapping from: /elasticsearch-core.*/, to: 'elasticsearch'
+    mapping from: /jackson-.*/, to: 'jackson'
+    ignoreSha 'elasticsearch-core'
+}

x-pack/plugin/sql/sql-shared-proto/licenses/jackson-LICENSE

@@ -0,0 +1,8 @@
+This copy of Jackson JSON processor streaming parser/generator is licensed under the
+Apache (Software) License, version 2.0 ("the License").
+See the License for details about distribution rights, and the
+specific rights regarding derivate works.
+
+You may obtain a copy of the License at:
+
+http://www.apache.org/licenses/LICENSE-2.0

x-pack/plugin/sql/sql-shared-proto/licenses/jackson-NOTICE

@@ -0,0 +1,20 @@
+# Jackson JSON processor
+
+Jackson is a high-performance, Free/Open Source JSON processing library.
+It was originally written by Tatu Saloranta (tatu.saloranta@iki.fi), and has
+been in development since 2007.
+It is currently developed by a community of developers, as well as supported
+commercially by FasterXML.com.
+
+## Licensing
+
+Jackson core and extension components may licensed under different licenses.
+To find the details that apply to this artifact see the accompanying LICENSE file.
+For more information, including possible other licensing options, contact
+FasterXML.com (http://fasterxml.com).
+
+## Credits
+
+A list of contributors may be found from CREDITS file, which is included
+in some artifacts (usually source distributions); but is always available
+from the source code management (SCM) system project uses.

x-pack/plugin/sql/sql-shared-proto/licenses/jackson-core-2.8.10.jar.sha1

@@ -0,0 +1 @@
+eb21a035c66ad307e66ec8fce37f5d50fd62d039

x-pack/plugin/sql/sql-shared-proto/licenses/joda-time-2.9.9.jar.sha1

@@ -0,0 +1 @@
+f7b520c458572890807d143670c9b24f4de90897

x-pack/plugin/sql/sql-shared-proto/licenses/joda-time-LICENSE.txt

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
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+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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+      appropriateness of using or redistributing the Work and assume any
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+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
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+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

x-pack/plugin/sql/sql-shared-proto/licenses/joda-time-NOTICE.txt

@@ -0,0 +1,5 @@
+=============================================================================
+= NOTICE file corresponding to section 4d of the Apache License Version 2.0 =
+=============================================================================
+This product includes software developed by
+Joda.org (http://www.joda.org/).

x-pack/plugin/sql/sql-shared-proto/src/main/java/org/elasticsearch/xpack/sql/proto/ColumnInfo.java

@@ -7,7 +7,6 @@ package org.elasticsearch.xpack.sql.proto;
 
 import org.elasticsearch.common.Nullable;
 import org.elasticsearch.common.ParseField;
-import org.elasticsearch.common.Strings;
 import org.elasticsearch.common.xcontent.ConstructingObjectParser;
 import org.elasticsearch.common.xcontent.ToXContentObject;
 import org.elasticsearch.common.xcontent.XContentBuilder;
@@ -74,7 +73,7 @@ public class ColumnInfo implements ToXContentObject {
     @Override
     public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
         builder.startObject();
-        if (Strings.hasText(table)) {
+        if (table != null && table.isEmpty() == false) {
             builder.field("table", table);
         }
         builder.field("name", name);
@@ -146,6 +145,6 @@ public class ColumnInfo implements ToXContentObject {
 
     @Override
     public String toString() {
-        return Strings.toString(this);
+        return ProtoUtils.toString(this);
     }
 }

x-pack/plugin/sql/sql-shared-proto/src/main/java/org/elasticsearch/xpack/sql/proto/MainResponse.java

@@ -6,7 +6,6 @@
 
 package org.elasticsearch.xpack.sql.proto;
 
-import org.elasticsearch.Build;
 import org.elasticsearch.common.ParseField;
 import org.elasticsearch.common.xcontent.ObjectParser;
 import org.elasticsearch.common.xcontent.XContentParser;
@@ -21,18 +20,16 @@ public class MainResponse {
     private String version;
     private String clusterName;
     private String clusterUuid;
-    // TODO: Add parser for Build
-    private Build build;
 
     private MainResponse() {
     }
 
-    public MainResponse(String nodeName, String version, String clusterName, String clusterUuid, Build build) {
+    public MainResponse(String nodeName, String version, String clusterName, String clusterUuid) {
         this.nodeName = nodeName;
         this.version = version;
         this.clusterName = clusterName;
         this.clusterUuid = clusterUuid;
-        this.build = build;
+
     }
 
     public String getNodeName() {
@@ -51,10 +48,6 @@ public class MainResponse {
         return clusterUuid;
     }
 
-    public Build getBuild() {
-        return build;
-    }
-
     private static final ObjectParser<MainResponse, Void> PARSER = new ObjectParser<>(MainResponse.class.getName(), true,
         MainResponse::new);
 
@@ -65,15 +58,6 @@ public class MainResponse {
         PARSER.declareString((response, value) -> {
         }, new ParseField("tagline"));
         PARSER.declareObject((response, value) -> {
-            final String buildFlavor = (String) value.get("build_flavor");
-            final String buildType = (String) value.get("build_type");
-            response.build =
-                new Build(
-                    buildFlavor == null ? Build.Flavor.UNKNOWN : Build.Flavor.fromDisplayName(buildFlavor),
-                    buildType == null ? Build.Type.UNKNOWN : Build.Type.fromDisplayName(buildType),
-                    (String) value.get("build_hash"),
-                    (String) value.get("build_date"),
-                    (boolean) value.get("build_snapshot"));
             response.version = (String) value.get("number");
         }, (parser, context) -> parser.map(), new ParseField("version"));
     }
@@ -94,12 +78,11 @@ public class MainResponse {
         return Objects.equals(nodeName, other.nodeName) &&
             Objects.equals(version, other.version) &&
             Objects.equals(clusterUuid, other.clusterUuid) &&
-            Objects.equals(build, other.build) &&
             Objects.equals(clusterName, other.clusterName);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(nodeName, version, clusterUuid, build, clusterName);
+        return Objects.hash(nodeName, version, clusterUuid, clusterName);
     }
 }

x-pack/plugin/sql/sql-shared-proto/src/main/java/org/elasticsearch/xpack/sql/proto/ProtoUtils.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+package org.elasticsearch.xpack.sql.proto;
+
+import org.elasticsearch.common.xcontent.ToXContent;
+import org.elasticsearch.common.xcontent.XContentBuilder;
+import org.elasticsearch.common.xcontent.XContentParser;
+import org.elasticsearch.common.xcontent.json.JsonXContent;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.Locale;
+
+public final class ProtoUtils {
+
+    private ProtoUtils() {
+
+    }
+
+    /**
+     * Parses a generic value from the XContent stream
+     */
+    public static Object parseFieldsValue(XContentParser parser) throws IOException {
+        XContentParser.Token token = parser.currentToken();
+        if (token == XContentParser.Token.VALUE_STRING) {
+            //binary values will be parsed back and returned as base64 strings when reading from json and yaml
+            return parser.text();
+        } else if (token == XContentParser.Token.VALUE_NUMBER) {
+            return parser.numberValue();
+        } else if (token == XContentParser.Token.VALUE_BOOLEAN) {
+            return parser.booleanValue();
+        } else if (token == XContentParser.Token.VALUE_NULL) {
+            return null;
+        } else if (token == XContentParser.Token.START_OBJECT) {
+            return parser.mapOrdered();
+        } else if (token == XContentParser.Token.START_ARRAY) {
+            return parser.listOrderedMap();
+        } else {
+            String message = "Failed to parse object: unexpected token [%s] found";
+            throw new IllegalStateException(String.format(Locale.ROOT, message, token));
+        }
+    }
+
+    /**
+     * Returns a string representation of the builder (only applicable for text based xcontent).
+     *
+     * @param xContentBuilder builder containing an object to converted to a string
+     */
+    public static String toString(XContentBuilder xContentBuilder) {
+        byte[] byteArray = ((ByteArrayOutputStream) xContentBuilder.getOutputStream()).toByteArray();
+        return new String(byteArray, StandardCharsets.UTF_8);
+    }
+
+    public static String toString(ToXContent toXContent) {
+        try {
+            XContentBuilder builder = JsonXContent.contentBuilder();
+            if (toXContent.isFragment()) {
+                builder.startObject();
+            }
+            toXContent.toXContent(builder, ToXContent.EMPTY_PARAMS);
+            if (toXContent.isFragment()) {
+                builder.endObject();
+            }
+            builder.close();
+            return toString(builder);
+        } catch (IOException e) {
+            try {
+                XContentBuilder builder = JsonXContent.contentBuilder();
+                builder.startObject();
+                builder.field("error", "error building toString out of XContent: " + e.getMessage());
+                builder.endObject();
+                builder.close();
+                return toString(builder);
+            } catch (IOException e2) {
+                throw new IllegalArgumentException("cannot generate error message for deserialization", e);
+            }
+        }
+    }
+
+}

x-pack/plugin/sql/sql-shared-proto/src/main/java/org/elasticsearch/xpack/sql/proto/SqlQueryResponse.java

@@ -18,7 +18,7 @@ import java.util.Objects;
 
 import static org.elasticsearch.common.xcontent.ConstructingObjectParser.constructorArg;
 import static org.elasticsearch.common.xcontent.ConstructingObjectParser.optionalConstructorArg;
-import static org.elasticsearch.common.xcontent.XContentParserUtils.parseFieldsValue;
+import static org.elasticsearch.xpack.sql.proto.ProtoUtils.parseFieldsValue;
 
 /**
  * Response to perform an sql query for JDBC/CLI client

x-pack/plugin/sql/sql-shared-proto/src/main/java/org/elasticsearch/xpack/sql/proto/SqlTypedParamValue.java

@@ -11,13 +11,13 @@ import org.elasticsearch.common.xcontent.ObjectParser;
 import org.elasticsearch.common.xcontent.ToXContentObject;
 import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.common.xcontent.XContentParser;
-import org.elasticsearch.common.xcontent.XContentParserUtils;
 import org.elasticsearch.xpack.sql.type.DataType;
 
 import java.io.IOException;
 import java.util.Objects;
 
 import static org.elasticsearch.common.xcontent.ConstructingObjectParser.constructorArg;
+import static org.elasticsearch.xpack.sql.proto.ProtoUtils.parseFieldsValue;
 
 /**
  * Represent a strongly typed parameter value
@@ -33,7 +33,7 @@ public class SqlTypedParamValue implements ToXContentObject {
     private static final ParseField TYPE = new ParseField("type");
 
     static {
-        PARSER.declareField(constructorArg(), (p, c) -> XContentParserUtils.parseFieldsValue(p), VALUE, ObjectParser.ValueType.VALUE);
+        PARSER.declareField(constructorArg(), (p, c) -> parseFieldsValue(p), VALUE, ObjectParser.ValueType.VALUE);
         PARSER.declareString(constructorArg(), TYPE);
     }
 

x-pack/plugin/sql/sql-shared-proto/src/test/java/org/elasticsearch/xpack/sql/proto/ProtoUtilsTests.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+package org.elasticsearch.xpack.sql.proto;
+
+import org.elasticsearch.common.xcontent.DeprecationHandler;
+import org.elasticsearch.common.xcontent.NamedXContentRegistry;
+import org.elasticsearch.common.xcontent.XContentParser;
+import org.elasticsearch.common.xcontent.json.JsonXContent;
+import org.elasticsearch.test.ESTestCase;
+
+import java.io.IOException;
+
+public class ProtoUtilsTests extends ESTestCase {
+
+    public void testGenericValueParsing() throws IOException {
+
+        String json = ProtoUtils.toString((builder, params) -> {
+            builder.field("int", 42);
+            builder.field("double", 42.5);
+            builder.field("string", "foobar");
+            builder.nullField("null");
+            return builder;
+        });
+
+        XContentParser parser =
+            JsonXContent.jsonXContent.createParser(NamedXContentRegistry.EMPTY, DeprecationHandler.THROW_UNSUPPORTED_OPERATION, json);
+
+        assertEquals(XContentParser.Token.START_OBJECT, parser.nextToken());
+        while (parser.nextToken() != XContentParser.Token.END_OBJECT) {
+            assertEquals(XContentParser.Token.FIELD_NAME, parser.currentToken());
+            String fieldName = parser.currentName();
+            parser.nextToken();
+            Object val = ProtoUtils.parseFieldsValue(parser);
+            switch (fieldName) {
+                case "int":
+                    assertEquals(42, val);
+                    break;
+                case "double":
+                    assertEquals(42.5, val);
+                    break;
+                case "string":
+                    assertEquals("foobar", val);
+                    break;
+                case "null":
+                    assertNull(val);
+                    break;
+                default:
+                    fail("Unexpected value " + fieldName);
+            }
+        }
+        assertNull(parser.nextToken());
+
+    }
+
+}

x-pack/qa/sql/build.gradle

@@ -96,6 +96,9 @@ subprojects {
 
     // CLI testing dependencies
     testRuntime project(path: xpackModule('sql:sql-cli'), configuration: 'nodeps')
+    testRuntime (xpackProject('plugin:sql:sql-proto')) {
+      transitive = false
+    }
     testRuntime "org.jline:jline:3.6.0"
   }