| /** |
| * 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.mapred; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Matchers.anyInt; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.hadoop.fs.FSDataInputStream; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.FilterFileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.PositionedReadable; |
| import org.apache.hadoop.fs.Seekable; |
| import org.apache.hadoop.fs.permission.FsPermission; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.MRConfig; |
| import org.apache.hadoop.mapreduce.MRJobConfig; |
| import org.apache.hadoop.mapreduce.filecache.DistributedCache; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.invocation.InvocationOnMock; |
| import org.mockito.stubbing.Answer; |
| |
| @SuppressWarnings("deprecation") |
| public class TestLocalDistributedCacheManager { |
| |
| private static FileSystem mockfs; |
| |
| public static class MockFileSystem extends FilterFileSystem { |
| public MockFileSystem() { |
| super(mockfs); |
| } |
| } |
| |
| private File localDir; |
| |
| private static void delete(File file) throws IOException { |
| if (file.getAbsolutePath().length() < 5) { |
| throw new IllegalArgumentException( |
| "Path [" + file + "] is too short, not deleting"); |
| } |
| if (file.exists()) { |
| if (file.isDirectory()) { |
| File[] children = file.listFiles(); |
| if (children != null) { |
| for (File child : children) { |
| delete(child); |
| } |
| } |
| } |
| if (!file.delete()) { |
| throw new RuntimeException( |
| "Could not delete path [" + file + "]"); |
| } |
| } |
| } |
| |
| @Before |
| public void setup() throws Exception { |
| mockfs = mock(FileSystem.class); |
| localDir = new File(System.getProperty("test.build.dir", "target/test-dir"), |
| TestLocalDistributedCacheManager.class.getName()); |
| delete(localDir); |
| localDir.mkdirs(); |
| } |
| |
| @After |
| public void cleanup() throws Exception { |
| delete(localDir); |
| } |
| |
| /** |
| * Mock input stream based on a byte array so that it can be used by a |
| * FSDataInputStream. |
| */ |
| private static class MockInputStream extends ByteArrayInputStream |
| implements Seekable, PositionedReadable { |
| public MockInputStream(byte[] buf) { |
| super(buf); |
| } |
| |
| // empty implementation for unused methods |
| public int read(long position, byte[] buffer, int offset, int length) { return -1; } |
| public void readFully(long position, byte[] buffer, int offset, int length) {} |
| public void readFully(long position, byte[] buffer) {} |
| public void seek(long position) {} |
| public long getPos() { return 0; } |
| public boolean seekToNewSource(long targetPos) { return false; } |
| } |
| |
| @Test |
| public void testDownload() throws Exception { |
| JobConf conf = new JobConf(); |
| conf.setClass("fs.mock.impl", MockFileSystem.class, FileSystem.class); |
| |
| URI mockBase = new URI("mock://test-nn1/"); |
| when(mockfs.getUri()).thenReturn(mockBase); |
| Path working = new Path("mock://test-nn1/user/me/"); |
| when(mockfs.getWorkingDirectory()).thenReturn(working); |
| when(mockfs.resolvePath(any(Path.class))).thenAnswer(new Answer<Path>() { |
| @Override |
| public Path answer(InvocationOnMock args) throws Throwable { |
| return (Path) args.getArguments()[0]; |
| } |
| }); |
| |
| final URI file = new URI("mock://test-nn1/user/me/file.txt#link"); |
| final Path filePath = new Path(file); |
| File link = new File("link"); |
| |
| when(mockfs.getFileStatus(any(Path.class))).thenAnswer(new Answer<FileStatus>() { |
| @Override |
| public FileStatus answer(InvocationOnMock args) throws Throwable { |
| Path p = (Path)args.getArguments()[0]; |
| if("file.txt".equals(p.getName())) { |
| return new FileStatus(201, false, 1, 500, 101, 101, |
| FsPermission.getDefault(), "me", "me", filePath); |
| } else { |
| throw new FileNotFoundException(p+" not supported by mocking"); |
| } |
| } |
| }); |
| |
| when(mockfs.getConf()).thenReturn(conf); |
| final FSDataInputStream in = |
| new FSDataInputStream(new MockInputStream("This is a test file\n".getBytes())); |
| when(mockfs.open(any(Path.class), anyInt())).thenAnswer(new Answer<FSDataInputStream>() { |
| @Override |
| public FSDataInputStream answer(InvocationOnMock args) throws Throwable { |
| Path src = (Path)args.getArguments()[0]; |
| if ("file.txt".equals(src.getName())) { |
| return in; |
| } else { |
| throw new FileNotFoundException(src+" not supported by mocking"); |
| } |
| } |
| }); |
| |
| DistributedCache.addCacheFile(file, conf); |
| Map<String, Boolean> policies = new HashMap<String, Boolean>(); |
| policies.put(file.toString(), true); |
| Job.setFileSharedCacheUploadPolicies(conf, policies); |
| conf.set(MRJobConfig.CACHE_FILE_TIMESTAMPS, "101"); |
| conf.set(MRJobConfig.CACHE_FILES_SIZES, "201"); |
| conf.set(MRJobConfig.CACHE_FILE_VISIBILITIES, "false"); |
| conf.set(MRConfig.LOCAL_DIR, localDir.getAbsolutePath()); |
| LocalDistributedCacheManager manager = new LocalDistributedCacheManager(); |
| try { |
| manager.setup(conf); |
| assertTrue(link.exists()); |
| } finally { |
| manager.close(); |
| } |
| assertFalse(link.exists()); |
| } |
| |
| @Test |
| public void testEmptyDownload() throws Exception { |
| JobConf conf = new JobConf(); |
| conf.setClass("fs.mock.impl", MockFileSystem.class, FileSystem.class); |
| |
| URI mockBase = new URI("mock://test-nn1/"); |
| when(mockfs.getUri()).thenReturn(mockBase); |
| Path working = new Path("mock://test-nn1/user/me/"); |
| when(mockfs.getWorkingDirectory()).thenReturn(working); |
| when(mockfs.resolvePath(any(Path.class))).thenAnswer(new Answer<Path>() { |
| @Override |
| public Path answer(InvocationOnMock args) throws Throwable { |
| return (Path) args.getArguments()[0]; |
| } |
| }); |
| |
| when(mockfs.getFileStatus(any(Path.class))).thenAnswer(new Answer<FileStatus>() { |
| @Override |
| public FileStatus answer(InvocationOnMock args) throws Throwable { |
| Path p = (Path)args.getArguments()[0]; |
| throw new FileNotFoundException(p+" not supported by mocking"); |
| } |
| }); |
| |
| when(mockfs.getConf()).thenReturn(conf); |
| when(mockfs.open(any(Path.class), anyInt())).thenAnswer(new Answer<FSDataInputStream>() { |
| @Override |
| public FSDataInputStream answer(InvocationOnMock args) throws Throwable { |
| Path src = (Path)args.getArguments()[0]; |
| throw new FileNotFoundException(src+" not supported by mocking"); |
| } |
| }); |
| |
| conf.set(MRJobConfig.CACHE_FILES, ""); |
| conf.set(MRConfig.LOCAL_DIR, localDir.getAbsolutePath()); |
| LocalDistributedCacheManager manager = new LocalDistributedCacheManager(); |
| try { |
| manager.setup(conf); |
| } finally { |
| manager.close(); |
| } |
| } |
| |
| |
| @Test |
| public void testDuplicateDownload() throws Exception { |
| JobConf conf = new JobConf(); |
| conf.setClass("fs.mock.impl", MockFileSystem.class, FileSystem.class); |
| |
| URI mockBase = new URI("mock://test-nn1/"); |
| when(mockfs.getUri()).thenReturn(mockBase); |
| Path working = new Path("mock://test-nn1/user/me/"); |
| when(mockfs.getWorkingDirectory()).thenReturn(working); |
| when(mockfs.resolvePath(any(Path.class))).thenAnswer(new Answer<Path>() { |
| @Override |
| public Path answer(InvocationOnMock args) throws Throwable { |
| return (Path) args.getArguments()[0]; |
| } |
| }); |
| |
| final URI file = new URI("mock://test-nn1/user/me/file.txt#link"); |
| final Path filePath = new Path(file); |
| File link = new File("link"); |
| |
| when(mockfs.getFileStatus(any(Path.class))).thenAnswer(new Answer<FileStatus>() { |
| @Override |
| public FileStatus answer(InvocationOnMock args) throws Throwable { |
| Path p = (Path)args.getArguments()[0]; |
| if("file.txt".equals(p.getName())) { |
| return new FileStatus(201, false, 1, 500, 101, 101, |
| FsPermission.getDefault(), "me", "me", filePath); |
| } else { |
| throw new FileNotFoundException(p+" not supported by mocking"); |
| } |
| } |
| }); |
| |
| when(mockfs.getConf()).thenReturn(conf); |
| final FSDataInputStream in = |
| new FSDataInputStream(new MockInputStream("This is a test file\n".getBytes())); |
| when(mockfs.open(any(Path.class), anyInt())).thenAnswer(new Answer<FSDataInputStream>() { |
| @Override |
| public FSDataInputStream answer(InvocationOnMock args) throws Throwable { |
| Path src = (Path)args.getArguments()[0]; |
| if ("file.txt".equals(src.getName())) { |
| return in; |
| } else { |
| throw new FileNotFoundException(src+" not supported by mocking"); |
| } |
| } |
| }); |
| |
| DistributedCache.addCacheFile(file, conf); |
| DistributedCache.addCacheFile(file, conf); |
| Map<String, Boolean> policies = new HashMap<String, Boolean>(); |
| policies.put(file.toString(), true); |
| Job.setFileSharedCacheUploadPolicies(conf, policies); |
| conf.set(MRJobConfig.CACHE_FILE_TIMESTAMPS, "101,101"); |
| conf.set(MRJobConfig.CACHE_FILES_SIZES, "201,201"); |
| conf.set(MRJobConfig.CACHE_FILE_VISIBILITIES, "false,false"); |
| conf.set(MRConfig.LOCAL_DIR, localDir.getAbsolutePath()); |
| LocalDistributedCacheManager manager = new LocalDistributedCacheManager(); |
| try { |
| manager.setup(conf); |
| assertTrue(link.exists()); |
| } finally { |
| manager.close(); |
| } |
| assertFalse(link.exists()); |
| } |
| } |