Merge branch 'master' of http://git-wip-us.apache.org/repos/asf/nifi

nifi-api/src/main/java/org/apache/nifi/processor/ProcessContext.java

@@ -126,4 +126,17 @@ public interface ProcessContext {
      */
     Set<Relationship> getAvailableRelationships();
 
+    /**
+     * @return true if the processor has one or more incoming connections,
+     * false otherwise
+     */
+    boolean hasIncomingConnection();
+
+    /**
+     * @param relationship a relationship to check for connections
+     * @return true if the relationship has one or more outbound connections,
+     * false otherwise
+     */
+    boolean hasConnection(Relationship relationship);
+
 }

nifi-mock/src/main/java/org/apache/nifi/util/MockProcessContext.java

@@ -48,7 +48,9 @@ public class MockProcessContext extends MockControllerServiceLookup implements S
     private boolean yieldCalled = false;
     private boolean enableExpressionValidation = false;
     private boolean allowExpressionValidation = true;
+    private boolean incomingConnection = true;
 
+    private volatile Set<Relationship> connections = new HashSet<>();
     private volatile Set<Relationship> unavailableRelationships = new HashSet<>();
 
     /**
@@ -288,4 +290,35 @@ public class MockProcessContext extends MockControllerServiceLookup implements S
     public Set<Relationship> getUnavailableRelationships() {
         return unavailableRelationships;
     }
+
+    @Override
+    public boolean hasIncomingConnection() {
+        return incomingConnection;
+    }
+
+    public void setIncomingConnection(final boolean hasIncomingConnection) {
+        this.incomingConnection = hasIncomingConnection;
+    }
+
+    @Override
+    public boolean hasConnection(Relationship relationship) {
+        return this.connections.contains(relationship);
+    }
+
+    public void addConnection(final Relationship relationship) {
+        this.connections.add(relationship);
+    }
+
+    public void removeConnection(final Relationship relationship) {
+        this.connections.remove(relationship);
+    }
+
+    public void setConnections(final Set<Relationship> connections) {
+        if (connections == null) {
+            this.connections = Collections.emptySet();
+        } else {
+            this.connections = Collections.unmodifiableSet(connections);
+        }
+    }
+
 }

nifi-mock/src/main/java/org/apache/nifi/util/StandardProcessorTestRunner.java

@@ -518,6 +518,31 @@ public class StandardProcessorTestRunner implements TestRunner {
         setRelationshipUnavailable(new Relationship.Builder().name(relationshipName).build());
     }
 
+    @Override
+    public void setIncomingConnection(boolean hasIncomingConnection) {
+        context.setIncomingConnection(hasIncomingConnection);
+    }
+
+    @Override
+    public void addConnection(Relationship relationship) {
+        context.addConnection(relationship);
+    }
+
+    @Override
+    public void addConnection(String relationshipName) {
+        addConnection(new Relationship.Builder().name(relationshipName).build());
+    }
+
+    @Override
+    public void removeConnection(Relationship relationship) {
+        context.removeConnection(relationship);
+    }
+
+    @Override
+    public void removeConnection(String relationshipName) {
+        removeConnection(new Relationship.Builder().name(relationshipName).build());
+    }
+
     @Override
     public void addControllerService(final String identifier, final ControllerService service) throws InitializationException {
         addControllerService(identifier, service, new HashMap<String, String>());

nifi-mock/src/main/java/org/apache/nifi/util/TestRunner.java

@@ -488,6 +488,43 @@ public interface TestRunner {
      */
     void setRelationshipUnavailable(String relationshipName);
 
+    /**
+     * Indicates to the framework that the configured processor has one or more
+     * incoming connections.
+     *
+     * @param hasIncomingConnection whether or not the configured processor has an incoming connection
+     */
+    void setIncomingConnection(boolean hasIncomingConnection);
+
+    /**
+     * Indicates to the Framework that the configured processor has a connection for the given Relationship.
+     *
+     * @param relationship that has a connection
+     */
+    void addConnection(Relationship relationship);
+
+    /**
+     * Indicates to the Framework that the configured processor has a connection for the
+     * Relationship with the given name.
+     *
+     * @param relationshipName name of relationship that has a connection
+     */
+    void addConnection(String relationshipName);
+
+    /**
+     * Removes the connection for the given Relationship from the configured processor.
+     *
+     * @param relationship to remove
+     */
+    void removeConnection(Relationship relationship);
+
+    /**
+     * Removes the connection for the relationship with the given name from the configured processor.
+     *
+     * @param relationshipName name of the relationship to remove
+     */
+    void removeConnection(String relationshipName);
+
     /**
      * Adds the given {@link ControllerService} to this TestRunner so that the
      * configured Processor can access it using the given

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-documentation/src/main/java/org/apache/nifi/documentation/mock/MockProcessContext.java

@@ -82,4 +82,16 @@ public class MockProcessContext implements ProcessContext {
     public Set<Relationship> getAvailableRelationships() {
         return Collections.emptySet();
     }
+
+    @Override
+    public boolean hasIncomingConnection() {
+        return true;
+    }
+
+    @Override
+    public boolean hasConnection(Relationship relationship) {
+        return false;
+    }
+
+
 }

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core-api/src/main/java/org/apache/nifi/controller/ProcessorNode.java

@@ -95,4 +95,5 @@ public abstract class ProcessorNode extends AbstractConfiguredComponent implemen
      * @param ignoredReferences to ignore
      */
     public abstract void verifyCanStart(Set<ControllerServiceNode> ignoredReferences);
+
 }

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/controller/scheduling/ConnectableProcessContext.java

@@ -190,4 +190,17 @@ public class ConnectableProcessContext implements ProcessContext {
         }
         return new HashSet<>(connectable.getRelationships());
     }
+
+    @Override
+    public boolean hasIncomingConnection() {
+        return connectable.hasIncomingConnection();
+    }
+
+    @Override
+    public boolean hasConnection(Relationship relationship) {
+        Set<Connection> connections = connectable.getConnections(relationship);
+        return connections != null && !connections.isEmpty();
+    }
+
+
 }

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/processor/StandardProcessContext.java

@@ -179,4 +179,15 @@ public class StandardProcessContext implements ProcessContext, ControllerService
         return controllerServiceProvider.getControllerServiceName(serviceIdentifier);
     }
 
+    @Override
+    public boolean hasIncomingConnection() {
+        return procNode.hasIncomingConnection();
+    }
+
+    @Override
+    public boolean hasConnection(Relationship relationship) {
+        Set<Connection> connections = procNode.getConnections(relationship);
+        return connections != null && !connections.isEmpty();
+    }
+
 }

nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/processor/StandardSchedulingContext.java

@@ -111,4 +111,14 @@ public class StandardSchedulingContext implements SchedulingContext {
     public Set<Relationship> getAvailableRelationships() {
         return processContext.getAvailableRelationships();
     }
+
+    @Override
+    public boolean hasIncomingConnection() {
+        return processContext.hasIncomingConnection();
+    }
+
+    @Override
+    public boolean hasConnection(Relationship relationship) {
+        return processContext.hasConnection(relationship);
+    }
 }

nifi-nar-bundles/nifi-image-bundle/nifi-image-nar/pom.xml

@@ -32,6 +32,12 @@
             <artifactId>nifi-image-processors</artifactId>
             <version>0.3.1-SNAPSHOT</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-image-viewer</artifactId>
+            <version>0.3.1-SNAPSHOT</version>
+            <type>war</type>
+        </dependency>
     </dependencies>
 
 </project>

nifi-nar-bundles/nifi-image-bundle/nifi-image-viewer/pom.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <!--
+      Licensed to the Apache Software Foundation (ASF) under one or more
+      contributor license agreements.  See the NOTICE file distributed with
+      this work for additional information regarding copyright ownership.
+      The ASF 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.
+    -->
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.nifi</groupId>
+        <artifactId>nifi-image-bundle</artifactId>
+        <version>0.3.1-SNAPSHOT</version>
+    </parent>
+    <artifactId>nifi-image-viewer</artifactId>
+    <description>NiFi image viewer</description>
+    <packaging>war</packaging>
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet.jsp</groupId>
+            <artifactId>javax.servlet.jsp-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.el</groupId>
+            <artifactId>javax.el-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet.jsp.jstl</groupId>
+            <artifactId>javax.servlet.jsp.jstl-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+        </dependency>
+    </dependencies>
+</project>

nifi-nar-bundles/nifi-image-bundle/nifi-image-viewer/src/main/java/org/apache/nifi/web/ImageViewerController.java

@@ -0,0 +1,52 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.apache.nifi.web;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet(name = "ImageViewer", urlPatterns = {"/view-content"})
+public class ImageViewerController extends HttpServlet {
+
+    /**
+     * Handles generating markup for viewing an image.
+     *
+     * @param request servlet request
+     * @param response servlet response
+     * @throws ServletException if a servlet-specific error occurs
+     * @throws IOException if an I/O error occurs
+     */
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        final ViewableContent content = (ViewableContent) request.getAttribute(ViewableContent.CONTENT_REQUEST_ATTRIBUTE);
+
+        // handle images
+        if ("image/png".equals(content.getContentType()) || "image/jpeg".equals(content.getContentType()) || "image/gif".equals(content.getContentType())) {
+            // defer to the jsp
+            request.getRequestDispatcher("/WEB-INF/jsp/image.jsp").include(request, response);
+        } else {
+            final PrintWriter out = response.getWriter();
+            out.println("Unexpected content type: " + content.getContentType());
+        }
+    }
+}

nifi-nar-bundles/nifi-image-bundle/nifi-image-viewer/src/main/webapp/META-INF/nifi-content-viewer

@@ -0,0 +1,17 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF 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.
+image/png
+image/jpeg
+image/gif

nifi-nar-bundles/nifi-image-bundle/nifi-image-viewer/src/main/webapp/WEB-INF/jsp/image.jsp

@@ -0,0 +1,39 @@
+<%--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF 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.
+--%>
+<%@ page contentType="text/html" pageEncoding="UTF-8" session="false" %>
+<script type="text/javascript" src="../nifi/js/jquery/jquery-2.1.1.min.js"></script>
+<style>
+    #image-holder {
+        position: absolute;
+        right: 50px;
+        bottom: 50px;
+        left: 100px;
+        top: 100px;
+        border: 1px solid #aaa;
+        overflow: auto;
+        background-color: #fff;
+        padding: 4px;
+    }
+</style>
+<div id="image-holder"></div>
+<script type="text/javascript">
+    $(document).ready(function() {
+        var ref = $('#ref').text();
+        var imgElement = $('<img/>').attr('src', ref);
+        $('#image-holder').append(imgElement);
+    });
+</script>

nifi-nar-bundles/nifi-image-bundle/nifi-image-viewer/src/main/webapp/WEB-INF/web.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF 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.
+-->
+<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
+    <display-name>nifi-image-viewer</display-name>
+    <servlet>
+        <servlet-name>ImageViewer</servlet-name>
+        <servlet-class>org.apache.nifi.web.ImageViewerController</servlet-class>
+    </servlet>
+    <servlet-mapping>
+        <servlet-name>ImageViewer</servlet-name>
+        <url-pattern>/view-content</url-pattern>
+    </servlet-mapping>
+    <welcome-file-list>
+        <welcome-file>view-content</welcome-file>
+    </welcome-file-list>
+</web-app>

nifi-nar-bundles/nifi-image-bundle/pom.xml

@@ -29,6 +29,7 @@
     <modules>
         <module>nifi-image-processors</module>
         <module>nifi-image-nar</module>
+        <module>nifi-image-viewer</module>
     </modules>
 
 </project>

nifi-nar-bundles/nifi-solr-bundle/nifi-solr-processors/src/main/java/org/apache/nifi/processors/solr/PutSolrContentStream.java

@@ -161,7 +161,7 @@ public class PutSolrContentStream extends SolrProcessor {
         final ObjectHolder<Exception> connectionError = new ObjectHolder<>(null);
 
         final boolean isSolrCloud = SOLR_TYPE_CLOUD.equals(context.getProperty(SOLR_TYPE).getValue());
-        final String collection = context.getProperty(COLLECTION_PARAM_NAME).evaluateAttributeExpressions(flowFile).getValue();
+        final String collection = context.getProperty(COLLECTION).evaluateAttributeExpressions(flowFile).getValue();
         final Long commitWithin = context.getProperty(COMMIT_WITHIN).evaluateAttributeExpressions(flowFile).asLong();
 
         final MultiMapSolrParams requestParams = new MultiMapSolrParams(getRequestParams(context, flowFile));

nifi-nar-bundles/nifi-solr-bundle/nifi-solr-processors/src/test/java/org/apache/nifi/processors/solr/TestPutSolrContentStream.java

@@ -28,6 +28,7 @@ import org.apache.solr.client.solrj.response.QueryResponse;
 import org.apache.solr.common.SolrDocument;
 import org.apache.solr.common.SolrException;
 import org.apache.solr.common.SolrInputDocument;
+import org.apache.solr.common.util.NamedList;
 import org.junit.Assert;
 import org.junit.Test;
 import org.mockito.Mockito;
@@ -37,6 +38,8 @@ import java.io.IOException;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
 
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.eq;
@@ -229,6 +232,27 @@ public class TestPutSolrContentStream {
         Assert.assertEquals(0, qResponse.getResults().getNumFound());
     }
 
+    @Test
+    public void testCollectionExpressionLanguage() throws IOException, SolrServerException {
+        final String collection = "collection1";
+        final CollectionVerifyingProcessor proc = new CollectionVerifyingProcessor(collection);
+
+        final TestRunner runner = TestRunners.newTestRunner(proc);
+        runner.setProperty(PutSolrContentStream.SOLR_TYPE, PutSolrContentStream.SOLR_TYPE_CLOUD.getValue());
+        runner.setProperty(PutSolrContentStream.SOLR_LOCATION, "localhost:9983");
+        runner.setProperty(PutSolrContentStream.COLLECTION, "${solr.collection}");
+
+        final Map<String,String> attributes = new HashMap<>();
+        attributes.put("solr.collection", collection);
+
+        try (FileInputStream fileIn = new FileInputStream(CUSTOM_JSON_SINGLE_DOC_FILE)) {
+            runner.enqueue(fileIn, attributes);
+            runner.run();
+
+            runner.assertAllFlowFilesTransferred(PutSolrContentStream.REL_SUCCESS, 1);
+        }
+    }
+
     @Test
     public void testSolrServerExceptionShouldRouteToFailure() throws IOException, SolrServerException {
         final Throwable throwable = new SolrServerException("Invalid Document");
@@ -329,6 +353,36 @@ public class TestPutSolrContentStream {
         runner.assertValid();
     }
 
+    // Override the createSolrClient method to inject a custom SolrClient.
+    private class CollectionVerifyingProcessor extends PutSolrContentStream {
+
+        private SolrClient mockSolrClient;
+
+        private final String expectedCollection;
+
+        public CollectionVerifyingProcessor(final String expectedCollection) {
+            this.expectedCollection = expectedCollection;
+        }
+
+        @Override
+        protected SolrClient createSolrClient(ProcessContext context) {
+            mockSolrClient = new SolrClient() {
+                @Override
+                public NamedList<Object> request(SolrRequest solrRequest, String s) throws SolrServerException, IOException {
+                    Assert.assertEquals(expectedCollection, solrRequest.getParams().get(PutSolrContentStream.COLLECTION_PARAM_NAME));
+                    return new NamedList<>();
+                }
+
+                @Override
+                public void shutdown() {
+
+                }
+
+            };
+            return mockSolrClient;
+        }
+
+    }
 
     // Override the createSolrClient method to inject a Mock.
     private class ExceptionThrowingProcessor extends PutSolrContentStream {

nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ExecuteSQL.java

@@ -50,7 +50,10 @@ import org.apache.nifi.util.StopWatch;
 @EventDriven
 @Tags({ "sql", "select", "jdbc", "query", "database" })
 @CapabilityDescription("Execute provided SQL select query. Query result will be converted to Avro format."
-    + " Streaming is used so arbitrarily large result sets are supported.")
+    + " Streaming is used so arbitrarily large result sets are supported. This processor can be scheduled to run on " +
+        "a timer, or cron expression, using the standard scheduling methods, or it can be triggered by an incoming FlowFile. " +
+        "If it is triggered by an incoming FlowFile, then attributes of that FlowFile will be available when evaluating the " +
+        "select query.")
 public class ExecuteSQL extends AbstractProcessor {
 
     // Relationships
@@ -116,9 +119,12 @@ public class ExecuteSQL extends AbstractProcessor {
 
     @Override
     public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
-        final FlowFile incoming = session.get();
-        if (incoming == null) {
-            return;
+        FlowFile incoming = null;
+        if (context.hasIncomingConnection()) {
+            incoming = session.get();
+            if (incoming == null) {
+                return;
+            }
         }
 
         final ProcessorLog logger = getLogger();
@@ -133,7 +139,8 @@ public class ExecuteSQL extends AbstractProcessor {
             final Statement st = con.createStatement()) {
             st.setQueryTimeout(queryTimeout); // timeout in seconds
             final LongHolder nrOfRows = new LongHolder(0L);
-            final FlowFile outgoing = session.write(incoming, new OutputStreamCallback() {
+            FlowFile outgoing = (incoming == null ? session.create() : incoming);
+            outgoing = session.write(outgoing, new OutputStreamCallback() {
                 @Override
                 public void process(final OutputStream out) throws IOException {
                     try {

nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/MergeContent.java

@@ -641,7 +641,10 @@ public class MergeContent extends BinFiles {
                 if (wrapper != null) {
                     final FlowFile flowFile = wrapper.getFlowFile();
                     if (flowFile != null) {
-                        property = context.getProperty(descriptor).evaluateAttributeExpressions(flowFile).getValue().getBytes();
+                        final String value = context.getProperty(descriptor).evaluateAttributeExpressions(flowFile).getValue();
+                        if (value != null) {
+                            property = value.getBytes();
+                        }
                     }
                 }
             }

nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/TestDetectDuplicate.java

@@ -52,7 +52,7 @@ public class TestDetectDuplicate {
         System.setProperty("org.slf4j.simpleLogger.log.nifi.io.nio", "debug");
         System.setProperty("org.slf4j.simpleLogger.log.nifi.processors.standard.DetectDuplicate", "debug");
         System.setProperty("org.slf4j.simpleLogger.log.nifi.processors.standard.TestDetectDuplicate", "debug");
-        LOGGER = LoggerFactory.getLogger(TestListenUDP.class);
+        LOGGER = LoggerFactory.getLogger(TestDetectDuplicate.class);
     }
 
     @Test

nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/TestExecuteSQL.java

@@ -41,6 +41,7 @@ import org.apache.nifi.util.MockFlowFile;
 import org.apache.nifi.util.TestRunner;
 import org.apache.nifi.util.TestRunners;
 import org.fusesource.hawtbuf.ByteArrayInputStream;
+import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import org.slf4j.Logger;
@@ -61,32 +62,69 @@ public class TestExecuteSQL {
 
     final static String DB_LOCATION = "target/db";
 
+    final static String QUERY_WITH_EL = "select "
+            + "  PER.ID as PersonId, PER.NAME as PersonName, PER.CODE as PersonCode"
+            + ", PRD.ID as ProductId,PRD.NAME as ProductName,PRD.CODE as ProductCode"
+            + ", REL.ID as RelId,    REL.NAME as RelName,    REL.CODE as RelCode"
+            + ", ROW_NUMBER() OVER () as rownr "
+            + " from persons PER, products PRD, relationships REL"
+            + " where PER.ID = ${person.id}";
+
+    final static String QUERY_WITHOUT_EL = "select "
+            + "  PER.ID as PersonId, PER.NAME as PersonName, PER.CODE as PersonCode"
+            + ", PRD.ID as ProductId,PRD.NAME as ProductName,PRD.CODE as ProductCode"
+            + ", REL.ID as RelId,    REL.NAME as RelName,    REL.CODE as RelCode"
+            + ", ROW_NUMBER() OVER () as rownr "
+            + " from persons PER, products PRD, relationships REL"
+            + " where PER.ID = 10";
+
+
     @BeforeClass
-    public static void setup() {
+    public static void setupClass() {
         System.setProperty("derby.stream.error.file", "target/derby.log");
     }
 
+    private TestRunner runner;
+
+    @Before
+    public void setup() throws InitializationException {
+        final DBCPService dbcp = new DBCPServiceSimpleImpl();
+        final Map<String, String> dbcpProperties = new HashMap<>();
+
+        runner = TestRunners.newTestRunner(ExecuteSQL.class);
+        runner.addControllerService("dbcp", dbcp, dbcpProperties);
+        runner.enableControllerService(dbcp);
+        runner.setProperty(ExecuteSQL.DBCP_SERVICE, "dbcp");
+    }
+
+    @Test
+    public void testIncomingConnectionWithNoFlowFile() throws InitializationException {
+        runner.setIncomingConnection(true);
+        runner.setProperty(ExecuteSQL.SQL_SELECT_QUERY, "SELECT * FROM persons");
+        runner.run();
+        runner.assertTransferCount(ExecuteSQL.REL_SUCCESS, 0);
+        runner.assertTransferCount(ExecuteSQL.REL_FAILURE, 0);
+    }
+
+    @Test
+    public void testNoIncomingConnection() throws ClassNotFoundException, SQLException, InitializationException, IOException {
+        runner.setIncomingConnection(false);
+        invokeOnTrigger(null, QUERY_WITHOUT_EL, false);
+    }
+
     @Test
     public void testNoTimeLimit() throws InitializationException, ClassNotFoundException, SQLException, IOException {
-        invokeOnTrigger(null);
+        invokeOnTrigger(null, QUERY_WITH_EL, true);
     }
 
     @Test
     public void testQueryTimeout() throws InitializationException, ClassNotFoundException, SQLException, IOException {
         // Does to seem to have any effect when using embedded Derby
-        invokeOnTrigger(1); // 1 second max time
+        invokeOnTrigger(1, QUERY_WITH_EL, true); // 1 second max time
     }
 
-    public void invokeOnTrigger(final Integer queryTimeout) throws InitializationException, ClassNotFoundException, SQLException, IOException {
-        final TestRunner runner = TestRunners.newTestRunner(ExecuteSQL.class);
-
-        final DBCPService dbcp = new DBCPServiceSimpleImpl();
-        final Map<String, String> dbcpProperties = new HashMap<>();
-
-        runner.addControllerService("dbcp", dbcp, dbcpProperties);
-
-        runner.enableControllerService(dbcp);
-        runner.setProperty(ExecuteSQL.DBCP_SERVICE, "dbcp");
+    public void invokeOnTrigger(final Integer queryTimeout, final String query, final boolean incomingFlowFile)
+            throws InitializationException, ClassNotFoundException, SQLException, IOException {
 
         if (queryTimeout != null) {
             runner.setProperty(ExecuteSQL.QUERY_TIMEOUT, queryTimeout.toString() + " secs");
@@ -97,27 +135,21 @@ public class TestExecuteSQL {
         dbLocation.delete();
 
         // load test data to database
-        final Connection con = dbcp.getConnection();
+        final Connection con = ((DBCPService)runner.getControllerService("dbcp")).getConnection();
         TestJdbcHugeStream.loadTestData2Database(con, 100, 2000, 1000);
         LOGGER.info("test data loaded");
 
         // ResultSet size will be 1x2000x1000 = 2 000 000 rows
         // because of where PER.ID = ${person.id}
         final int nrOfRows = 2000000;
-        final String query = "select "
-            + "  PER.ID as PersonId, PER.NAME as PersonName, PER.CODE as PersonCode"
-            + ", PRD.ID as ProductId,PRD.NAME as ProductName,PRD.CODE as ProductCode"
-            + ", REL.ID as RelId,    REL.NAME as RelName,    REL.CODE as RelCode"
-            + ", ROW_NUMBER() OVER () as rownr "
-            + " from persons PER, products PRD, relationships REL"
-            + " where PER.ID = ${person.id}";
-
         runner.setProperty(ExecuteSQL.SQL_SELECT_QUERY, query);
 
-        // incoming FlowFile content is not used, but attributes are used
-        final Map<String, String> attributes = new HashMap<String, String>();
-        attributes.put("person.id", "10");
-        runner.enqueue("Hello".getBytes(), attributes);
+        if (incomingFlowFile) {
+            // incoming FlowFile content is not used, but attributes are used
+            final Map<String, String> attributes = new HashMap<String, String>();
+            attributes.put("person.id", "10");
+            runner.enqueue("Hello".getBytes(), attributes);
+        }
 
         runner.run();
         runner.assertAllFlowFilesTransferred(ExecuteSQL.REL_SUCCESS, 1);

nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/TestMergeContent.java

@@ -256,6 +256,27 @@ public class TestMergeContent {
         bundle.assertAttributeEquals(CoreAttributes.MIME_TYPE.key(), "application/plain-text");
     }
 
+    @Test
+    public void testSimpleBinaryConcatWithTextDelimitersHeaderOnly() throws IOException, InterruptedException {
+        final TestRunner runner = TestRunners.newTestRunner(new MergeContent());
+        runner.setProperty(MergeContent.MAX_BIN_AGE, "1 sec");
+        runner.setProperty(MergeContent.MERGE_FORMAT, MergeContent.MERGE_FORMAT_CONCAT);
+        runner.setProperty(MergeContent.DELIMITER_STRATEGY, MergeContent.DELIMITER_STRATEGY_TEXT);
+        runner.setProperty(MergeContent.HEADER, "@");
+
+        createFlowFiles(runner);
+        runner.run();
+
+        runner.assertQueueEmpty();
+        runner.assertTransferCount(MergeContent.REL_MERGED, 1);
+        runner.assertTransferCount(MergeContent.REL_FAILURE, 0);
+        runner.assertTransferCount(MergeContent.REL_ORIGINAL, 3);
+
+        final MockFlowFile bundle = runner.getFlowFilesForRelationship(MergeContent.REL_MERGED).get(0);
+        bundle.assertContentEquals("@Hello, World!".getBytes("UTF-8"));
+        bundle.assertAttributeEquals(CoreAttributes.MIME_TYPE.key(), "application/plain-text");
+    }
+
     @Test
     public void testSimpleBinaryConcatWithFileDelimiters() throws IOException, InterruptedException {
         final TestRunner runner = TestRunners.newTestRunner(new MergeContent());