HADOOP-9361: Strictly define FileSystem APIs - OpenStack portion

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1607625 13f79535-47bb-0310-9956-ffa450edef68

hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/StrictBufferedFSInputStream.java

@@ -19,9 +19,11 @@
 package org.apache.hadoop.fs.swift.snative;
 
 import org.apache.hadoop.fs.BufferedFSInputStream;
+import org.apache.hadoop.fs.FSExceptionMessages;
 import org.apache.hadoop.fs.FSInputStream;
 import org.apache.hadoop.fs.swift.exceptions.SwiftConnectionClosedException;
 
+import java.io.EOFException;
 import java.io.IOException;
 
 /**
@@ -37,10 +39,10 @@ public StrictBufferedFSInputStream(FSInputStream in,
   @Override
   public void seek(long pos) throws IOException {
     if (pos < 0) {
-      throw new IOException("Negative position");
+      throw new EOFException(FSExceptionMessages.NEGATIVE_SEEK);
     }
     if (in == null) {
-      throw new SwiftConnectionClosedException("Stream closed");
+      throw new SwiftConnectionClosedException(FSExceptionMessages.STREAM_IS_CLOSED);
     }
     super.seek(pos);
   }

hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystem.java

@@ -25,14 +25,14 @@
 import org.apache.hadoop.fs.BlockLocation;
 import org.apache.hadoop.fs.FSDataInputStream;
 import org.apache.hadoop.fs.FSDataOutputStream;
+import org.apache.hadoop.fs.FileAlreadyExistsException;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.ParentNotDirectoryException;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.fs.swift.exceptions.SwiftConfigurationException;
-import org.apache.hadoop.fs.swift.exceptions.SwiftNotDirectoryException;
 import org.apache.hadoop.fs.swift.exceptions.SwiftOperationFailedException;
-import org.apache.hadoop.fs.swift.exceptions.SwiftPathExistsException;
 import org.apache.hadoop.fs.swift.exceptions.SwiftUnsupportedFeatureException;
 import org.apache.hadoop.fs.swift.http.SwiftProtocolConstants;
 import org.apache.hadoop.fs.swift.util.DurationStats;
@@ -373,7 +373,7 @@ private boolean mkdir(Path path) throws IOException {
    * @param directory path to query
    * @return true iff the directory should be created
    * @throws IOException IO problems
-   * @throws SwiftNotDirectoryException if the path references a file
+   * @throws ParentNotDirectoryException if the path references a file
    */
   private boolean shouldCreate(Path directory) throws IOException {
     FileStatus fileStatus;
@@ -388,9 +388,9 @@ private boolean shouldCreate(Path directory) throws IOException {
 
       if (!SwiftUtils.isDirectory(fileStatus)) {
         //if it's a file, raise an error
-        throw new SwiftNotDirectoryException(directory,
+        throw new ParentNotDirectoryException(
-                String.format(": can't mkdir since it exists and is not a directory: %s",
+                String.format("%s: can't mkdir since it exists and is not a directory: %s",
-                        fileStatus));
+                    directory, fileStatus));
       } else {
         //path exists, and it is a directory
         if (LOG.isDebugEnabled()) {
@@ -488,7 +488,7 @@ public FSDataOutputStream create(Path file, FsPermission permission,
         //overwrite set -> delete the object.
         store.delete(absolutePath, true);
       } else {
-        throw new SwiftPathExistsException("Path exists: " + file);
+        throw new FileAlreadyExistsException("Path exists: " + file);
       }
     } else {
       // destination does not exist -trigger creation of the parent
@@ -580,6 +580,9 @@ public boolean rename(Path src, Path dst) throws IOException {
     } catch (SwiftOperationFailedException e) {
       //downgrade to a failure
       return false;
+    } catch (FileAlreadyExistsException e) {
+      //downgrade to a failure
+      return false;
     } catch (FileNotFoundException e) {
       //downgrade to a failure
       return false;

hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeFileSystemStore.java

@@ -22,6 +22,7 @@
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileAlreadyExistsException;
 import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.swift.exceptions.SwiftConfigurationException;
@@ -590,7 +591,7 @@ public void rename(Path src, Path dst)
         } else {
           //outcome #1 dest it's a file: fail if differeent
           if (!renamingOnToSelf) {
-            throw new SwiftOperationFailedException(
+            throw new FileAlreadyExistsException(
                     "cannot rename a file over one that already exists");
           } else {
             //is mv self self where self is a file. this becomes a no-op
@@ -633,7 +634,7 @@ public void rename(Path src, Path dst)
 
       if (destExists && !destIsDir) {
         // #1 destination is a file: fail
-        throw new SwiftOperationFailedException(
+        throw new FileAlreadyExistsException(
                 "the source is a directory, but not the destination");
       }
       Path targetPath;

hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeInputStream.java

@@ -20,6 +20,7 @@
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.fs.FSExceptionMessages;
 import org.apache.hadoop.fs.FSInputStream;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
@@ -298,7 +299,8 @@ private int chompBytes(long bytes) throws IOException {
   @Override
   public synchronized void seek(long targetPos) throws IOException {
     if (targetPos < 0) {
-      throw new IOException("Negative Seek offset not supported");
+      throw new EOFException(
+          FSExceptionMessages.NEGATIVE_SEEK);
     }
     //there's some special handling of near-local data
     //as the seek can be omitted if it is in/adjacent

hadoop-tools/hadoop-openstack/src/main/java/org/apache/hadoop/fs/swift/snative/SwiftNativeOutputStream.java

@@ -22,6 +22,7 @@
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.swift.exceptions.SwiftConnectionClosedException;
 import org.apache.hadoop.fs.swift.exceptions.SwiftException;
 import org.apache.hadoop.fs.swift.exceptions.SwiftInternalStateException;
 import org.apache.hadoop.fs.swift.util.SwiftUtils;
@@ -109,7 +110,7 @@ public void flush() throws IOException {
    */
   private synchronized void verifyOpen() throws SwiftException {
     if (closed) {
-      throw new SwiftException("Output stream is closed");
+      throw new SwiftConnectionClosedException();
     }
   }
 

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemBasicOps.java

@@ -21,9 +21,9 @@
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.ParentNotDirectoryException;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.swift.exceptions.SwiftBadRequestException;
-import org.apache.hadoop.fs.swift.exceptions.SwiftNotDirectoryException;
 import org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem;
 import org.apache.hadoop.fs.swift.util.SwiftTestUtils;
 import org.junit.Test;
@@ -245,7 +245,7 @@ public void testCreateDirWithFileParent() throws Throwable {
       writeTextFile(fs, path, "parent", true);
       try {
         fs.mkdirs(child);
-      } catch (SwiftNotDirectoryException expected) {
+      } catch (ParentNotDirectoryException expected) {
         LOG.debug("Expected Exception", expected);
       }
     } finally {

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemContract.java

@@ -23,8 +23,8 @@
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystemContractBaseTest;
+import org.apache.hadoop.fs.ParentNotDirectoryException;
 import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.fs.swift.exceptions.SwiftNotDirectoryException;
 import org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem;
 import org.apache.hadoop.fs.swift.util.SwiftTestUtils;
 
@@ -47,6 +47,14 @@ public class TestSwiftFileSystemContract
   private static final Log LOG =
           LogFactory.getLog(TestSwiftFileSystemContract.class);
 
+  /**
+   * Override this if the filesystem is not case sensitive
+   * @return true if the case detection/preservation tests should run
+   */
+  protected boolean filesystemIsCaseSensitive() {
+    return false;
+  }
+
   @Override
   protected void setUp() throws Exception {
     final URI uri = getFilesystemURI();
@@ -89,9 +97,8 @@ public void testMkdirsFailsForSubdirectoryOfExistingFile() throws Exception {
     try {
       fs.mkdirs(testSubDir);
       fail("Should throw IOException.");
-    } catch (SwiftNotDirectoryException e) {
+    } catch (ParentNotDirectoryException e) {
       // expected
-      assertEquals(filepath,e.getPath());
     }
     //now verify that the subdir path does not exist
     SwiftTestUtils.assertPathDoesNotExist(fs, "subdir after mkdir", testSubDir);
@@ -100,7 +107,7 @@ public void testMkdirsFailsForSubdirectoryOfExistingFile() throws Exception {
     try {
       fs.mkdirs(testDeepSubDir);
       fail("Should throw IOException.");
-    } catch (SwiftNotDirectoryException e) {
+    } catch (ParentNotDirectoryException e) {
       // expected
     }
     SwiftTestUtils.assertPathDoesNotExist(fs, "testDeepSubDir  after mkdir",

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/TestSwiftFileSystemRename.java

@@ -21,6 +21,7 @@
 import org.apache.hadoop.fs.FSDataInputStream;
 import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.swift.exceptions.SwiftOperationFailedException;
 import org.apache.hadoop.fs.swift.util.SwiftTestUtils;
 import org.junit.Test;
 
@@ -220,7 +221,11 @@ public void testMoveDirUnderParent() throws Throwable {
     fs.mkdirs(testdir);
     Path parent = testdir.getParent();
     //the outcome here is ambiguous, so is not checked
-    fs.rename(testdir, parent);
+    try {
+      fs.rename(testdir, parent);
+    } catch (SwiftOperationFailedException e) {
+      // allowed
+    }
     assertExists("Source directory has been deleted ", testdir);
   }
 

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/contract/SwiftContract.java

@@ -0,0 +1,44 @@
+/*
+ * 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.hadoop.fs.swift.contract;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractBondedFSContract;
+import org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem;
+
+/**
+ * The contract of OpenStack Swift: only enabled if the test binding data is provided
+ */
+public class SwiftContract extends AbstractBondedFSContract {
+
+  public static final String CONTRACT_XML = "contract/swift.xml";
+
+  public SwiftContract(Configuration conf) {
+    super(conf);
+    //insert the base features
+    addConfResource(CONTRACT_XML);
+  }
+
+
+  @Override
+  public String getScheme() {
+    return SwiftNativeFileSystem.SWIFT;
+  }
+
+}

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/contract/TestSwiftContractCreate.java

@@ -0,0 +1,37 @@
+/*
+ * 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.hadoop.fs.swift.contract;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractCreateTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.apache.hadoop.fs.contract.ContractTestUtils;
+
+public class TestSwiftContractCreate extends AbstractContractCreateTest {
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new SwiftContract(conf);
+  }
+
+  @Override
+  public void testOverwriteEmptyDirectory() throws Throwable {
+    ContractTestUtils.skip("blobstores can't distinguish empty directories from files");
+  }
+}

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/contract/TestSwiftContractDelete.java

@@ -0,0 +1,31 @@
+/*
+ * 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.hadoop.fs.swift.contract;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractDeleteTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+
+public class TestSwiftContractDelete extends AbstractContractDeleteTest {
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new SwiftContract(conf);
+  }
+}

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/contract/TestSwiftContractMkdir.java

@@ -16,28 +16,19 @@
  *  limitations under the License.
  */
 
-package org.apache.hadoop.fs.swift.exceptions;
+package org.apache.hadoop.fs.swift.contract;
 
-import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractMkdirTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
 
 /**
- * Exception raised when an operation is meant to work on a directory, but
+ * Test dir operations on S3
- * the target path is not a directory
  */
-public class SwiftNotDirectoryException extends SwiftException {
+public class TestSwiftContractMkdir extends AbstractContractMkdirTest {
-  private final Path path;
 
-  public SwiftNotDirectoryException(Path path) {
+  @Override
-    this(path, "");
+  protected AbstractFSContract createContract(Configuration conf) {
-  }
+    return new SwiftContract(conf);
-
-  public SwiftNotDirectoryException(Path path,
-                                    String message) {
-    super(path.toString() + message);
-    this.path = path;
-  }
-
-  public Path getPath() {
-    return path;
   }
 }

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/contract/TestSwiftContractOpen.java

@@ -0,0 +1,42 @@
+/*
+ * 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.hadoop.fs.swift.contract;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractOpenTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.apache.hadoop.fs.contract.ContractTestUtils;
+
+public class TestSwiftContractOpen extends AbstractContractOpenTest {
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new SwiftContract(conf);
+  }
+
+  @Override
+  public void testOpenReadDir() throws Throwable {
+    ContractTestUtils.skip("Skipping object-store quirk");
+  }
+
+  @Override
+  public void testOpenReadDirWithChild() throws Throwable {
+    ContractTestUtils.skip("Skipping object-store quirk");
+  }
+}

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/contract/TestSwiftContractRename.java

@@ -0,0 +1,32 @@
+/*
+ * 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.hadoop.fs.swift.contract;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractRenameTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+
+public class TestSwiftContractRename extends AbstractContractRenameTest {
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new SwiftContract(conf);
+  }
+
+}

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/contract/TestSwiftContractRootDir.java

@@ -0,0 +1,35 @@
+/*
+ * 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.hadoop.fs.swift.contract;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractRootDirectoryTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+
+/**
+ * root dir operations against an S3 bucket
+ */
+public class TestSwiftContractRootDir extends
+    AbstractContractRootDirectoryTest {
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new SwiftContract(conf);
+  }
+}

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/contract/TestSwiftContractSeek.java

@@ -16,18 +16,16 @@
  *  limitations under the License.
  */
 
-package org.apache.hadoop.fs.swift.exceptions;
+package org.apache.hadoop.fs.swift.contract;
 
-/**
+import org.apache.hadoop.conf.Configuration;
- * Exception raised when trying to create a file that already exists
+import org.apache.hadoop.fs.contract.AbstractContractSeekTest;
- * and the overwrite flag is set to false.
+import org.apache.hadoop.fs.contract.AbstractFSContract;
- */
-public class SwiftPathExistsException extends SwiftException {
-  public SwiftPathExistsException(String message) {
-    super(message);
-  }
 
-  public SwiftPathExistsException(String message, Throwable cause) {
+public class TestSwiftContractSeek extends AbstractContractSeekTest {
-    super(message, cause);
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new SwiftContract(conf);
   }
 }

hadoop-tools/hadoop-openstack/src/test/java/org/apache/hadoop/fs/swift/hdfs2/TestV2LsOperations.java

@@ -111,7 +111,7 @@ public void testListFilesRootDir() throws Throwable {
   @Test(timeout = SWIFT_TEST_TIMEOUT)
   public void testListFilesSubDir() throws Throwable {
     createTestSubdirs();
-    Path dir = path("/test");
+    Path dir = path("/test/subdir");
     Path child = new Path(dir, "text.txt");
     SwiftTestUtils.writeTextFile(fs, child, "text", false);
     assertListFilesFinds(fs, dir, child, false);
@@ -120,7 +120,7 @@ public void testListFilesSubDir() throws Throwable {
   @Test(timeout = SWIFT_TEST_TIMEOUT)
   public void testListFilesRecursive() throws Throwable {
     createTestSubdirs();
-    Path dir = path("/test");
+    Path dir = path("/test/recursive");
     Path child = new Path(dir, "hadoop/a/a.txt");
     SwiftTestUtils.writeTextFile(fs, child, "text", false);
     assertListFilesFinds(fs, dir, child, true);

hadoop-tools/hadoop-openstack/src/test/resources/contract/swift.xml

@@ -0,0 +1,95 @@
+<!--
+  ~ 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.
+  -->
+
+<configuration>
+  <!--
+  Openstack Swift is a blobstore, with very different behavior than a
+  classic filesystem.
+  -->
+
+  <property>
+    <name>fs.contract.test.root-tests-enabled</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.test.random-seek-count</name>
+    <value>10</value>
+  </property>
+
+  <property>
+    <name>fs.contract.is-blobstore</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.is-case-sensitive</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-append</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-atomic-directory-delete</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-atomic-rename</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-block-locality</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-concat</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-seek</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.rejects-seek-past-eof</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-strict-exceptions</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-unix-permissions</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <name>fs.contract.rename-returns-false-if-source-missing</name>
+    <value>true</value>
+  </property>
+
+</configuration>