Java Code Examples for org.apache.hadoop.fs.HarFileSystem#close()

The following examples show how to use org.apache.hadoop.fs.HarFileSystem#close() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: TestHadoopArchives.java From hadoop with Apache License 2.0

5 votes

@Test
/*
 * Tests copying from archive file system to a local file system
 */
public void testCopyToLocal() throws Exception {
  final String fullHarPathStr = makeArchive();

  // make path to copy the file to:
  final String tmpDir
    = System.getProperty("test.build.data","build/test/data") + "/work-dir/har-fs-tmp";
  final Path tmpPath = new Path(tmpDir);
  final LocalFileSystem localFs = FileSystem.getLocal(new Configuration());
  localFs.delete(tmpPath, true);
  localFs.mkdirs(tmpPath);
  assertTrue(localFs.exists(tmpPath));
  
  // Create fresh HarFs:
  final HarFileSystem harFileSystem = new HarFileSystem(fs);
  try {
    final URI harUri = new URI(fullHarPathStr);
    harFileSystem.initialize(harUri, fs.getConf());
    
    final Path sourcePath = new Path(fullHarPathStr + Path.SEPARATOR + "a");
    final Path targetPath = new Path(tmpPath, "straus");
    // copy the Har file to a local file system:
    harFileSystem.copyToLocalFile(false, sourcePath, targetPath);
    FileStatus straus = localFs.getFileStatus(targetPath);
    // the file should contain just 1 character:
    assertEquals(1, straus.getLen());
  } finally {
    harFileSystem.close();
    localFs.delete(tmpPath, true);      
  }
}

Example 2

Source File: TestHadoopArchives.java From big-c with Apache License 2.0

5 votes

@Test
/*
 * Tests copying from archive file system to a local file system
 */
public void testCopyToLocal() throws Exception {
  final String fullHarPathStr = makeArchive();

  // make path to copy the file to:
  final String tmpDir
    = System.getProperty("test.build.data","build/test/data") + "/work-dir/har-fs-tmp";
  final Path tmpPath = new Path(tmpDir);
  final LocalFileSystem localFs = FileSystem.getLocal(new Configuration());
  localFs.delete(tmpPath, true);
  localFs.mkdirs(tmpPath);
  assertTrue(localFs.exists(tmpPath));
  
  // Create fresh HarFs:
  final HarFileSystem harFileSystem = new HarFileSystem(fs);
  try {
    final URI harUri = new URI(fullHarPathStr);
    harFileSystem.initialize(harUri, fs.getConf());
    
    final Path sourcePath = new Path(fullHarPathStr + Path.SEPARATOR + "a");
    final Path targetPath = new Path(tmpPath, "straus");
    // copy the Har file to a local file system:
    harFileSystem.copyToLocalFile(false, sourcePath, targetPath);
    FileStatus straus = localFs.getFileStatus(targetPath);
    // the file should contain just 1 character:
    assertEquals(1, straus.getLen());
  } finally {
    harFileSystem.close();
    localFs.delete(tmpPath, true);      
  }
}

Example 3

Source File: TestHadoopArchives.java From hadoop with Apache License 2.0

4 votes

@Test
public void testReadFileContent() throws Exception {
  fileList.add(createFile(inputPath, fs, "c c"));
  final Path sub1 = new Path(inputPath, "sub 1");
  fs.mkdirs(sub1);
  fileList.add(createFile(inputPath, fs, sub1.getName(), "file x y z"));
  fileList.add(createFile(inputPath, fs, sub1.getName(), "file"));
  fileList.add(createFile(inputPath, fs, sub1.getName(), "x"));
  fileList.add(createFile(inputPath, fs, sub1.getName(), "y"));
  fileList.add(createFile(inputPath, fs, sub1.getName(), "z"));
  final Path sub2 = new Path(inputPath, "sub 1 with suffix");
  fs.mkdirs(sub2);
  fileList.add(createFile(inputPath, fs, sub2.getName(), "z"));
  // Generate a big binary file content:
  final byte[] binContent = prepareBin();
  fileList.add(createFile(inputPath, fs, binContent, sub2.getName(), "bin"));
  fileList.add(createFile(inputPath, fs, new byte[0], sub2.getName(), "zero-length"));

  final String fullHarPathStr = makeArchive();

  // Create fresh HarFs:
  final HarFileSystem harFileSystem = new HarFileSystem(fs);
  try {
    final URI harUri = new URI(fullHarPathStr);
    harFileSystem.initialize(harUri, fs.getConf());
    // now read the file content and compare it against the expected:
    int readFileCount = 0;
    for (final String pathStr0 : fileList) {
      final Path path = new Path(fullHarPathStr + Path.SEPARATOR + pathStr0);
      final String baseName = path.getName();
      final FileStatus status = harFileSystem.getFileStatus(path);
      if (status.isFile()) {
        // read the file:
        final byte[] actualContentSimple = readAllSimple(
            harFileSystem.open(path), true);
        
        final byte[] actualContentBuffer = readAllWithBuffer(
            harFileSystem.open(path), true);
        assertArrayEquals(actualContentSimple, actualContentBuffer);
        
        final byte[] actualContentFully = readAllWithReadFully(
            actualContentSimple.length,
            harFileSystem.open(path), true);
        assertArrayEquals(actualContentSimple, actualContentFully);
        
        final byte[] actualContentSeek = readAllWithSeek(
            actualContentSimple.length,
            harFileSystem.open(path), true);
        assertArrayEquals(actualContentSimple, actualContentSeek);
        
        final byte[] actualContentRead4
        = readAllWithRead4(harFileSystem.open(path), true);
        assertArrayEquals(actualContentSimple, actualContentRead4);
        
        final byte[] actualContentSkip = readAllWithSkip(
            actualContentSimple.length, 
            harFileSystem.open(path), 
            harFileSystem.open(path), 
            true);
        assertArrayEquals(actualContentSimple, actualContentSkip);
        
        if ("bin".equals(baseName)) {
          assertArrayEquals(binContent, actualContentSimple);
        } else if ("zero-length".equals(baseName)) {
          assertEquals(0, actualContentSimple.length);
        } else {
          String actual = new String(actualContentSimple, "UTF-8");
          assertEquals(baseName, actual);
        }
        readFileCount++;
      }
    }
    assertEquals(fileList.size(), readFileCount);
  } finally {
    harFileSystem.close();
  }
}

Example 4

Source File: TestHadoopArchives.java From big-c with Apache License 2.0

4 votes

@Test
public void testReadFileContent() throws Exception {
  fileList.add(createFile(inputPath, fs, "c c"));
  final Path sub1 = new Path(inputPath, "sub 1");
  fs.mkdirs(sub1);
  fileList.add(createFile(inputPath, fs, sub1.getName(), "file x y z"));
  fileList.add(createFile(inputPath, fs, sub1.getName(), "file"));
  fileList.add(createFile(inputPath, fs, sub1.getName(), "x"));
  fileList.add(createFile(inputPath, fs, sub1.getName(), "y"));
  fileList.add(createFile(inputPath, fs, sub1.getName(), "z"));
  final Path sub2 = new Path(inputPath, "sub 1 with suffix");
  fs.mkdirs(sub2);
  fileList.add(createFile(inputPath, fs, sub2.getName(), "z"));
  // Generate a big binary file content:
  final byte[] binContent = prepareBin();
  fileList.add(createFile(inputPath, fs, binContent, sub2.getName(), "bin"));
  fileList.add(createFile(inputPath, fs, new byte[0], sub2.getName(), "zero-length"));

  final String fullHarPathStr = makeArchive();

  // Create fresh HarFs:
  final HarFileSystem harFileSystem = new HarFileSystem(fs);
  try {
    final URI harUri = new URI(fullHarPathStr);
    harFileSystem.initialize(harUri, fs.getConf());
    // now read the file content and compare it against the expected:
    int readFileCount = 0;
    for (final String pathStr0 : fileList) {
      final Path path = new Path(fullHarPathStr + Path.SEPARATOR + pathStr0);
      final String baseName = path.getName();
      final FileStatus status = harFileSystem.getFileStatus(path);
      if (status.isFile()) {
        // read the file:
        final byte[] actualContentSimple = readAllSimple(
            harFileSystem.open(path), true);
        
        final byte[] actualContentBuffer = readAllWithBuffer(
            harFileSystem.open(path), true);
        assertArrayEquals(actualContentSimple, actualContentBuffer);
        
        final byte[] actualContentFully = readAllWithReadFully(
            actualContentSimple.length,
            harFileSystem.open(path), true);
        assertArrayEquals(actualContentSimple, actualContentFully);
        
        final byte[] actualContentSeek = readAllWithSeek(
            actualContentSimple.length,
            harFileSystem.open(path), true);
        assertArrayEquals(actualContentSimple, actualContentSeek);
        
        final byte[] actualContentRead4
        = readAllWithRead4(harFileSystem.open(path), true);
        assertArrayEquals(actualContentSimple, actualContentRead4);
        
        final byte[] actualContentSkip = readAllWithSkip(
            actualContentSimple.length, 
            harFileSystem.open(path), 
            harFileSystem.open(path), 
            true);
        assertArrayEquals(actualContentSimple, actualContentSkip);
        
        if ("bin".equals(baseName)) {
          assertArrayEquals(binContent, actualContentSimple);
        } else if ("zero-length".equals(baseName)) {
          assertEquals(0, actualContentSimple.length);
        } else {
          String actual = new String(actualContentSimple, "UTF-8");
          assertEquals(baseName, actual);
        }
        readFileCount++;
      }
    }
    assertEquals(fileList.size(), readFileCount);
  } finally {
    harFileSystem.close();
  }
}