/*
* 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;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.swift.util.SwiftTestUtils;
import org.junit.Test;
import java.io.IOException;
import static org.apache.hadoop.fs.swift.util.SwiftTestUtils.compareByteArrays;
import static org.apache.hadoop.fs.swift.util.SwiftTestUtils.dataset;
import static org.apache.hadoop.fs.swift.util.SwiftTestUtils.readBytesToString;
import static org.apache.hadoop.fs.swift.util.SwiftTestUtils.readDataset;
import static org.apache.hadoop.fs.swift.util.SwiftTestUtils.writeDataset;
public class TestSwiftFileSystemRename extends SwiftFileSystemBaseTest {
/**
* Rename a file into a directory
*
* @throws Exception
*/
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameFileIntoExistingDirectory() throws Exception {
assumeRenameSupported();
Path src = path("/test/olddir/file");
createFile(src);
Path dst = path("/test/new/newdir");
fs.mkdirs(dst);
rename(src, dst, true, false, true);
Path newFile = path("/test/new/newdir/file");
if (!fs.exists(newFile)) {
String ls = ls(dst);
LOG.info(ls(path("/test/new")));
LOG.info(ls(path("/test/hadoop")));
fail("did not find " + newFile + " - directory: " + ls);
}
assertTrue("Destination changed",
fs.exists(path("/test/new/newdir/file")));
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameFile() throws Exception {
assumeRenameSupported();
final Path old = new Path("/test/alice/file");
final Path newPath = new Path("/test/bob/file");
fs.mkdirs(newPath.getParent());
final FSDataOutputStream fsDataOutputStream = fs.create(old);
final byte[] message = "Some data".getBytes();
fsDataOutputStream.write(message);
fsDataOutputStream.close();
assertTrue(fs.exists(old));
rename(old, newPath, true, false, true);
final FSDataInputStream bobStream = fs.open(newPath);
final byte[] bytes = new byte[512];
final int read = bobStream.read(bytes);
bobStream.close();
final byte[] buffer = new byte[read];
System.arraycopy(bytes, 0, buffer, 0, read);
assertEquals(new String(message), new String(buffer));
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameDirectory() throws Exception {
assumeRenameSupported();
final Path old = new Path("/test/data/logs");
final Path newPath = new Path("/test/var/logs");
fs.mkdirs(old);
fs.mkdirs(newPath.getParent());
assertTrue(fs.exists(old));
rename(old, newPath, true, false, true);
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameTheSameDirectory() throws Exception {
assumeRenameSupported();
final Path old = new Path("/test/usr/data");
fs.mkdirs(old);
rename(old, old, false, true, true);
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameDirectoryIntoExistingDirectory() throws Exception {
assumeRenameSupported();
Path src = path("/test/olddir/dir");
fs.mkdirs(src);
createFile(path("/test/olddir/dir/file1"));
createFile(path("/test/olddir/dir/subdir/file2"));
Path dst = path("/test/new/newdir");
fs.mkdirs(dst);
//this renames into a child
rename(src, dst, true, false, true);
assertExists("new dir", path("/test/new/newdir/dir"));
assertExists("Renamed nested file1", path("/test/new/newdir/dir/file1"));
assertPathDoesNotExist("Nested file1 should have been deleted",
path("/test/olddir/dir/file1"));
assertExists("Renamed nested subdir",
path("/test/new/newdir/dir/subdir/"));
assertExists("file under subdir",
path("/test/new/newdir/dir/subdir/file2"));
assertPathDoesNotExist("Nested /test/hadoop/dir/subdir/file2 still exists",
path("/test/olddir/dir/subdir/file2"));
}
/**
* trying to rename a directory onto itself should fail,
* preserving everything underneath.
*/
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameDirToSelf() throws Throwable {
assumeRenameSupported();
Path parentdir = path("/test/parentdir");
fs.mkdirs(parentdir);
Path child = new Path(parentdir, "child");
createFile(child);
rename(parentdir, parentdir, false, true, true);
//verify the child is still there
assertIsFile(child);
}
/**
* Assert that root directory renames are not allowed
*
* @throws Exception on failures
*/
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameRootDirForbidden() throws Exception {
assumeRenameSupported();
rename(path("/"),
path("/test/newRootDir"),
false, true, false);
}
/**
* Assert that renaming a parent directory to be a child
* of itself is forbidden
*
* @throws Exception on failures
*/
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameChildDirForbidden() throws Exception {
assumeRenameSupported();
Path parentdir = path("/test/parentdir");
fs.mkdirs(parentdir);
Path childFile = new Path(parentdir, "childfile");
createFile(childFile);
//verify one level down
Path childdir = new Path(parentdir, "childdir");
rename(parentdir, childdir, false, true, false);
//now another level
fs.mkdirs(childdir);
Path childchilddir = new Path(childdir, "childdir");
rename(parentdir, childchilddir, false, true, false);
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameFileAndVerifyContents() throws IOException {
assumeRenameSupported();
final Path filePath = new Path("/test/home/user/documents/file.txt");
final Path newFilePath = new Path("/test/home/user/files/file.txt");
mkdirs(newFilePath.getParent());
int len = 1024;
byte[] dataset = dataset(len, 'A', 26);
writeDataset(fs, filePath, dataset, len, len, false);
rename(filePath, newFilePath, true, false, true);
byte[] dest = readDataset(fs, newFilePath, len);
compareByteArrays(dataset, dest, len);
String reread = readBytesToString(fs, newFilePath, 20);
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testMoveFileUnderParent() throws Throwable {
if (!renameSupported()) return;
Path filepath = path("test/file");
createFile(filepath);
//HDFS expects rename src, src -> true
rename(filepath, filepath, true, true, true);
//verify the file is still there
assertIsFile(filepath);
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testMoveDirUnderParent() throws Throwable {
if (!renameSupported()) {
return;
}
Path testdir = path("test/dir");
fs.mkdirs(testdir);
Path parent = testdir.getParent();
//the outcome here is ambiguous, so is not checked
fs.rename(testdir, parent);
assertExists("Source directory has been deleted ", testdir);
}
/**
* trying to rename a file onto itself should succeed (it's a no-op)
*/
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameFileToSelf() throws Throwable {
if (!renameSupported()) return;
Path filepath = path("test/file");
createFile(filepath);
//HDFS expects rename src, src -> true
rename(filepath, filepath, true, true, true);
//verify the file is still there
assertIsFile(filepath);
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenamedConsistence() throws IOException {
assumeRenameSupported();
describe("verify that overwriting a file with new data doesn't impact" +
" the existing content");
final Path filePath = new Path("/test/home/user/documents/file.txt");
final Path newFilePath = new Path("/test/home/user/files/file.txt");
mkdirs(newFilePath.getParent());
int len = 1024;
byte[] dataset = dataset(len, 'A', 26);
byte[] dataset2 = dataset(len, 'a', 26);
writeDataset(fs, filePath, dataset, len, len, false);
rename(filePath, newFilePath, true, false, true);
SwiftTestUtils.writeAndRead(fs, filePath, dataset2, len, len, false, true);
byte[] dest = readDataset(fs, newFilePath, len);
compareByteArrays(dataset, dest, len);
String reread = readBytesToString(fs, newFilePath, 20);
}
@Test(timeout = SWIFT_TEST_TIMEOUT)
public void testRenameMissingFile() throws Throwable {
assumeRenameSupported();
Path path = path("/test/RenameMissingFile");
Path path2 = path("/test/RenameMissingFileDest");
mkdirs(path("test"));
rename(path, path2, false, false, false);
}
}