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  3. org.apache.hadoop.io.RandomDatum

Java 类org.apache.hadoop.io.RandomDatum 实例源码

项目：hadoop-oss    文件：CryptoStreamsTestBase.java    
@Before
public void setUp() throws IOException {
  // Generate data
  final int seed = new Random().nextInt();
  final DataOutputBuffer dataBuf = new DataOutputBuffer();
  final RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i = 0; i < count; ++i) {
    generator.next();
    final RandomDatum key = generator.getKey();
    final RandomDatum value = generator.getValue();

    key.write(dataBuf);
    value.write(dataBuf);
  }
  LOG.info("Generated " + count + " records");
  data = dataBuf.getData();
  dataLen = dataBuf.getLength();
}
项目：hadoop    文件：CryptoStreamsTestBase.java    
@Before
public void setUp() throws IOException {
  // Generate data
  final int seed = new Random().nextInt();
  final DataOutputBuffer dataBuf = new DataOutputBuffer();
  final RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i = 0; i < count; ++i) {
    generator.next();
    final RandomDatum key = generator.getKey();
    final RandomDatum value = generator.getValue();

    key.write(dataBuf);
    value.write(dataBuf);
  }
  LOG.info("Generated " + count + " records");
  data = dataBuf.getData();
  dataLen = dataBuf.getLength();
}
项目：aliyun-oss-hadoop-fs    文件：CryptoStreamsTestBase.java    
@Before
public void setUp() throws IOException {
  // Generate data
  final int seed = new Random().nextInt();
  final DataOutputBuffer dataBuf = new DataOutputBuffer();
  final RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i = 0; i < count; ++i) {
    generator.next();
    final RandomDatum key = generator.getKey();
    final RandomDatum value = generator.getValue();

    key.write(dataBuf);
    value.write(dataBuf);
  }
  LOG.info("Generated " + count + " records");
  data = dataBuf.getData();
  dataLen = dataBuf.getLength();
}
项目：big-c    文件：CryptoStreamsTestBase.java    
@Before
public void setUp() throws IOException {
  // Generate data
  final int seed = new Random().nextInt();
  final DataOutputBuffer dataBuf = new DataOutputBuffer();
  final RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i = 0; i < count; ++i) {
    generator.next();
    final RandomDatum key = generator.getKey();
    final RandomDatum value = generator.getValue();

    key.write(dataBuf);
    value.write(dataBuf);
  }
  LOG.info("Generated " + count + " records");
  data = dataBuf.getData();
  dataLen = dataBuf.getLength();
}
项目：hadoop-2.6.0-cdh5.4.3    文件：CryptoStreamsTestBase.java    
@Before
public void setUp() throws IOException {
  // Generate data
  final int seed = new Random().nextInt();
  final DataOutputBuffer dataBuf = new DataOutputBuffer();
  final RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i = 0; i < count; ++i) {
    generator.next();
    final RandomDatum key = generator.getKey();
    final RandomDatum value = generator.getValue();

    key.write(dataBuf);
    value.write(dataBuf);
  }
  LOG.info("Generated " + count + " records");
  data = dataBuf.getData();
  dataLen = dataBuf.getLength();
}
项目：hops    文件：CryptoStreamsTestBase.java    
@Before
public void setUp() throws IOException {
  // Generate data
  final int seed = new Random().nextInt();
  final DataOutputBuffer dataBuf = new DataOutputBuffer();
  final RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i = 0; i < count; ++i) {
    generator.next();
    final RandomDatum key = generator.getKey();
    final RandomDatum value = generator.getValue();

    key.write(dataBuf);
    value.write(dataBuf);
  }
  LOG.info("Generated " + count + " records");
  data = dataBuf.getData();
  dataLen = dataBuf.getLength();
}
项目：hadoop    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：aliyun-oss-hadoop-fs    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：big-c    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：hadoop-2.6.0-cdh5.4.3    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：hadoop-plus    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：FlexMap    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：hops    文件：TestHSync.java    
/**
 * Test hsync via SequenceFiles
 */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(), EnumSet
      .of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile
      .createWriter(new Configuration(), Writer.stream(out),
          Writer.keyClass(RandomDatum.class),
          Writer.valueClass(RandomDatum.class),
          Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：hadoop-TCP    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：hardfs    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：hadoop-on-lustre2    文件：TestHSync.java    
/** Test hsync via SequenceFiles */
@Test
public void testSequenceFileSync() throws Exception {
  Configuration conf = new HdfsConfiguration();
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build();

  final FileSystem fs = cluster.getFileSystem();
  final Path p = new Path("/testSequenceFileSync/foo");
  final int len = 1 << 16;
  FSDataOutputStream out = fs.create(p, FsPermission.getDefault(),
      EnumSet.of(CreateFlag.CREATE, CreateFlag.OVERWRITE, CreateFlag.SYNC_BLOCK),
      4096, (short) 1, len, null);
  Writer w = SequenceFile.createWriter(new Configuration(),
      Writer.stream(out),
      Writer.keyClass(RandomDatum.class),
      Writer.valueClass(RandomDatum.class),
      Writer.compression(CompressionType.NONE, new DefaultCodec()));
  w.hflush();
  checkSyncMetric(cluster, 0);
  w.hsync();
  checkSyncMetric(cluster, 1);
  int seed = new Random().nextInt();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  generator.next();
  w.append(generator.getKey(), generator.getValue());
  w.hsync();
  checkSyncMetric(cluster, 2);
  w.close();
  checkSyncMetric(cluster, 2);
  out.close();
  checkSyncMetric(cluster, 3);
  cluster.shutdown();
}
项目：hadoop-EAR    文件：TestCodec.java    
private static void codecTest(Configuration conf, int seed, int count, 
                              String codecClass) 
  throws IOException {

  // Create the codec
  CompressionCodec codec = null;
  try {
    codec = (CompressionCodec)
      ReflectionUtils.newInstance(conf.getClassByName(codecClass), conf);
  } catch (ClassNotFoundException cnfe) {
    throw new IOException("Illegal codec!");
  }
  LOG.info("Created a Codec object of type: " + codecClass);

  // Generate data
  DataOutputBuffer data = new DataOutputBuffer();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i=0; i < count; ++i) {
    generator.next();
    RandomDatum key = generator.getKey();
    RandomDatum value = generator.getValue();

    key.write(data);
    value.write(data);
  }
  DataInputBuffer originalData = new DataInputBuffer();
  DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData));
  originalData.reset(data.getData(), 0, data.getLength());

  LOG.info("Generated " + count + " records");

  // Compress data
  DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
  CompressionOutputStream deflateFilter = 
    codec.createOutputStream(compressedDataBuffer);
  DataOutputStream deflateOut = 
    new DataOutputStream(new BufferedOutputStream(deflateFilter));
  deflateOut.write(data.getData(), 0, data.getLength());
  deflateOut.flush();
  deflateFilter.finish();
  LOG.info("Finished compressing data");

  // De-compress data
  DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
  deCompressedDataBuffer.reset(compressedDataBuffer.getData(), 0, 
                               compressedDataBuffer.getLength());
  CompressionInputStream inflateFilter = 
    codec.createInputStream(deCompressedDataBuffer);
  DataInputStream inflateIn = 
    new DataInputStream(new BufferedInputStream(inflateFilter));

  // Check
  for(int i=0; i < count; ++i) {
    RandomDatum k1 = new RandomDatum();
    RandomDatum v1 = new RandomDatum();
    k1.readFields(originalIn);
    v1.readFields(originalIn);

    RandomDatum k2 = new RandomDatum();
    RandomDatum v2 = new RandomDatum();
    k2.readFields(inflateIn);
    v2.readFields(inflateIn);
  }
  LOG.info("SUCCESS! Completed checking " + count + " records");
}
项目：hadoop-on-lustre    文件：TestCodec.java    
private static void codecTest(Configuration conf, int seed, int count, 
                              String codecClass) 
  throws IOException {

  // Create the codec
  CompressionCodec codec = null;
  try {
    codec = (CompressionCodec)
      ReflectionUtils.newInstance(conf.getClassByName(codecClass), conf);
  } catch (ClassNotFoundException cnfe) {
    throw new IOException("Illegal codec!");
  }
  LOG.info("Created a Codec object of type: " + codecClass);

  // Generate data
  DataOutputBuffer data = new DataOutputBuffer();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i=0; i < count; ++i) {
    generator.next();
    RandomDatum key = generator.getKey();
    RandomDatum value = generator.getValue();

    key.write(data);
    value.write(data);
  }
  DataInputBuffer originalData = new DataInputBuffer();
  DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData));
  originalData.reset(data.getData(), 0, data.getLength());

  LOG.info("Generated " + count + " records");

  // Compress data
  DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
  CompressionOutputStream deflateFilter = 
    codec.createOutputStream(compressedDataBuffer);
  DataOutputStream deflateOut = 
    new DataOutputStream(new BufferedOutputStream(deflateFilter));
  deflateOut.write(data.getData(), 0, data.getLength());
  deflateOut.flush();
  deflateFilter.finish();
  LOG.info("Finished compressing data");

  // De-compress data
  DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
  deCompressedDataBuffer.reset(compressedDataBuffer.getData(), 0, 
                               compressedDataBuffer.getLength());
  CompressionInputStream inflateFilter = 
    codec.createInputStream(deCompressedDataBuffer);
  DataInputStream inflateIn = 
    new DataInputStream(new BufferedInputStream(inflateFilter));

  // Check
  for(int i=0; i < count; ++i) {
    RandomDatum k1 = new RandomDatum();
    RandomDatum v1 = new RandomDatum();
    k1.readFields(originalIn);
    v1.readFields(originalIn);

    RandomDatum k2 = new RandomDatum();
    RandomDatum v2 = new RandomDatum();
    k2.readFields(inflateIn);
    v2.readFields(inflateIn);
    assertTrue("original and compressed-then-decompressed-output not equal",
               k1.equals(k2) && v1.equals(v2));
  }
  LOG.info("SUCCESS! Completed checking " + count + " records");
}
项目：RDFS    文件：TestCodec.java    
private static void codecTest(Configuration conf, int seed, int count, 
                              String codecClass) 
  throws IOException {

  // Create the codec
  CompressionCodec codec = null;
  try {
    codec = (CompressionCodec)
      ReflectionUtils.newInstance(conf.getClassByName(codecClass), conf);
  } catch (ClassNotFoundException cnfe) {
    throw new IOException("Illegal codec!");
  }
  LOG.info("Created a Codec object of type: " + codecClass);

  // Generate data
  DataOutputBuffer data = new DataOutputBuffer();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i=0; i < count; ++i) {
    generator.next();
    RandomDatum key = generator.getKey();
    RandomDatum value = generator.getValue();

    key.write(data);
    value.write(data);
  }
  DataInputBuffer originalData = new DataInputBuffer();
  DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData));
  originalData.reset(data.getData(), 0, data.getLength());

  LOG.info("Generated " + count + " records");

  // Compress data
  DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
  CompressionOutputStream deflateFilter = 
    codec.createOutputStream(compressedDataBuffer);
  DataOutputStream deflateOut = 
    new DataOutputStream(new BufferedOutputStream(deflateFilter));
  deflateOut.write(data.getData(), 0, data.getLength());
  deflateOut.flush();
  deflateFilter.finish();
  LOG.info("Finished compressing data");

  // De-compress data
  DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
  deCompressedDataBuffer.reset(compressedDataBuffer.getData(), 0, 
                               compressedDataBuffer.getLength());
  CompressionInputStream inflateFilter = 
    codec.createInputStream(deCompressedDataBuffer);
  DataInputStream inflateIn = 
    new DataInputStream(new BufferedInputStream(inflateFilter));

  // Check
  for(int i=0; i < count; ++i) {
    RandomDatum k1 = new RandomDatum();
    RandomDatum v1 = new RandomDatum();
    k1.readFields(originalIn);
    v1.readFields(originalIn);

    RandomDatum k2 = new RandomDatum();
    RandomDatum v2 = new RandomDatum();
    k2.readFields(inflateIn);
    v2.readFields(inflateIn);
  }
  LOG.info("SUCCESS! Completed checking " + count + " records");
}
项目：hadoop-0.20    文件：TestCodec.java    
private static void codecTest(Configuration conf, int seed, int count, 
                              String codecClass) 
  throws IOException {

  // Create the codec
  CompressionCodec codec = null;
  try {
    codec = (CompressionCodec)
      ReflectionUtils.newInstance(conf.getClassByName(codecClass), conf);
  } catch (ClassNotFoundException cnfe) {
    throw new IOException("Illegal codec!");
  }
  LOG.info("Created a Codec object of type: " + codecClass);

  // Generate data
  DataOutputBuffer data = new DataOutputBuffer();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i=0; i < count; ++i) {
    generator.next();
    RandomDatum key = generator.getKey();
    RandomDatum value = generator.getValue();

    key.write(data);
    value.write(data);
  }
  DataInputBuffer originalData = new DataInputBuffer();
  DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData));
  originalData.reset(data.getData(), 0, data.getLength());

  LOG.info("Generated " + count + " records");

  // Compress data
  DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
  CompressionOutputStream deflateFilter = 
    codec.createOutputStream(compressedDataBuffer);
  DataOutputStream deflateOut = 
    new DataOutputStream(new BufferedOutputStream(deflateFilter));
  deflateOut.write(data.getData(), 0, data.getLength());
  deflateOut.flush();
  deflateFilter.finish();
  LOG.info("Finished compressing data");

  // De-compress data
  DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
  deCompressedDataBuffer.reset(compressedDataBuffer.getData(), 0, 
                               compressedDataBuffer.getLength());
  CompressionInputStream inflateFilter = 
    codec.createInputStream(deCompressedDataBuffer);
  DataInputStream inflateIn = 
    new DataInputStream(new BufferedInputStream(inflateFilter));

  // Check
  for(int i=0; i < count; ++i) {
    RandomDatum k1 = new RandomDatum();
    RandomDatum v1 = new RandomDatum();
    k1.readFields(originalIn);
    v1.readFields(originalIn);

    RandomDatum k2 = new RandomDatum();
    RandomDatum v2 = new RandomDatum();
    k2.readFields(inflateIn);
    v2.readFields(inflateIn);
  }
  LOG.info("SUCCESS! Completed checking " + count + " records");
}
项目：hortonworks-extension    文件：TestCodec.java    
private static void codecTest(Configuration conf, int seed, int count, 
                              String codecClass) 
  throws IOException {

  // Create the codec
  CompressionCodec codec = null;
  try {
    codec = (CompressionCodec)
      ReflectionUtils.newInstance(conf.getClassByName(codecClass), conf);
  } catch (ClassNotFoundException cnfe) {
    throw new IOException("Illegal codec!");
  }
  LOG.info("Created a Codec object of type: " + codecClass);

  // Generate data
  DataOutputBuffer data = new DataOutputBuffer();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i=0; i < count; ++i) {
    generator.next();
    RandomDatum key = generator.getKey();
    RandomDatum value = generator.getValue();

    key.write(data);
    value.write(data);
  }
  DataInputBuffer originalData = new DataInputBuffer();
  DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData));
  originalData.reset(data.getData(), 0, data.getLength());

  LOG.info("Generated " + count + " records");

  // Compress data
  DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
  CompressionOutputStream deflateFilter = 
    codec.createOutputStream(compressedDataBuffer);
  DataOutputStream deflateOut = 
    new DataOutputStream(new BufferedOutputStream(deflateFilter));
  deflateOut.write(data.getData(), 0, data.getLength());
  deflateOut.flush();
  deflateFilter.finish();
  LOG.info("Finished compressing data");

  // De-compress data
  DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
  deCompressedDataBuffer.reset(compressedDataBuffer.getData(), 0, 
                               compressedDataBuffer.getLength());
  CompressionInputStream inflateFilter = 
    codec.createInputStream(deCompressedDataBuffer);
  DataInputStream inflateIn = 
    new DataInputStream(new BufferedInputStream(inflateFilter));

  // Check
  for(int i=0; i < count; ++i) {
    RandomDatum k1 = new RandomDatum();
    RandomDatum v1 = new RandomDatum();
    k1.readFields(originalIn);
    v1.readFields(originalIn);

    RandomDatum k2 = new RandomDatum();
    RandomDatum v2 = new RandomDatum();
    k2.readFields(inflateIn);
    v2.readFields(inflateIn);
    assertTrue("original and compressed-then-decompressed-output not equal",
               k1.equals(k2) && v1.equals(v2));
  }
  LOG.info("SUCCESS! Completed checking " + count + " records");
}
项目：hortonworks-extension    文件：TestCodec.java    
private static void codecTest(Configuration conf, int seed, int count, 
                              String codecClass) 
  throws IOException {

  // Create the codec
  CompressionCodec codec = null;
  try {
    codec = (CompressionCodec)
      ReflectionUtils.newInstance(conf.getClassByName(codecClass), conf);
  } catch (ClassNotFoundException cnfe) {
    throw new IOException("Illegal codec!");
  }
  LOG.info("Created a Codec object of type: " + codecClass);

  // Generate data
  DataOutputBuffer data = new DataOutputBuffer();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i=0; i < count; ++i) {
    generator.next();
    RandomDatum key = generator.getKey();
    RandomDatum value = generator.getValue();

    key.write(data);
    value.write(data);
  }
  DataInputBuffer originalData = new DataInputBuffer();
  DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData));
  originalData.reset(data.getData(), 0, data.getLength());

  LOG.info("Generated " + count + " records");

  // Compress data
  DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
  CompressionOutputStream deflateFilter = 
    codec.createOutputStream(compressedDataBuffer);
  DataOutputStream deflateOut = 
    new DataOutputStream(new BufferedOutputStream(deflateFilter));
  deflateOut.write(data.getData(), 0, data.getLength());
  deflateOut.flush();
  deflateFilter.finish();
  LOG.info("Finished compressing data");

  // De-compress data
  DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
  deCompressedDataBuffer.reset(compressedDataBuffer.getData(), 0, 
                               compressedDataBuffer.getLength());
  CompressionInputStream inflateFilter = 
    codec.createInputStream(deCompressedDataBuffer);
  DataInputStream inflateIn = 
    new DataInputStream(new BufferedInputStream(inflateFilter));

  // Check
  for(int i=0; i < count; ++i) {
    RandomDatum k1 = new RandomDatum();
    RandomDatum v1 = new RandomDatum();
    k1.readFields(originalIn);
    v1.readFields(originalIn);

    RandomDatum k2 = new RandomDatum();
    RandomDatum v2 = new RandomDatum();
    k2.readFields(inflateIn);
    v2.readFields(inflateIn);
    assertTrue("original and compressed-then-decompressed-output not equal",
               k1.equals(k2) && v1.equals(v2));
  }
  LOG.info("SUCCESS! Completed checking " + count + " records");
}
项目：hadoop-gpu    文件：TestCodec.java    
private static void codecTest(Configuration conf, int seed, int count, 
                              String codecClass) 
  throws IOException {

  // Create the codec
  CompressionCodec codec = null;
  try {
    codec = (CompressionCodec)
      ReflectionUtils.newInstance(conf.getClassByName(codecClass), conf);
  } catch (ClassNotFoundException cnfe) {
    throw new IOException("Illegal codec!");
  }
  LOG.info("Created a Codec object of type: " + codecClass);

  // Generate data
  DataOutputBuffer data = new DataOutputBuffer();
  RandomDatum.Generator generator = new RandomDatum.Generator(seed);
  for(int i=0; i < count; ++i) {
    generator.next();
    RandomDatum key = generator.getKey();
    RandomDatum value = generator.getValue();

    key.write(data);
    value.write(data);
  }
  DataInputBuffer originalData = new DataInputBuffer();
  DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData));
  originalData.reset(data.getData(), 0, data.getLength());

  LOG.info("Generated " + count + " records");

  // Compress data
  DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
  CompressionOutputStream deflateFilter = 
    codec.createOutputStream(compressedDataBuffer);
  DataOutputStream deflateOut = 
    new DataOutputStream(new BufferedOutputStream(deflateFilter));
  deflateOut.write(data.getData(), 0, data.getLength());
  deflateOut.flush();
  deflateFilter.finish();
  LOG.info("Finished compressing data");

  // De-compress data
  DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
  deCompressedDataBuffer.reset(compressedDataBuffer.getData(), 0, 
                               compressedDataBuffer.getLength());
  CompressionInputStream inflateFilter = 
    codec.createInputStream(deCompressedDataBuffer);
  DataInputStream inflateIn = 
    new DataInputStream(new BufferedInputStream(inflateFilter));

  // Check
  for(int i=0; i < count; ++i) {
    RandomDatum k1 = new RandomDatum();
    RandomDatum v1 = new RandomDatum();
    k1.readFields(originalIn);
    v1.readFields(originalIn);

    RandomDatum k2 = new RandomDatum();
    RandomDatum v2 = new RandomDatum();
    k2.readFields(inflateIn);
    v2.readFields(inflateIn);
  }
  LOG.info("SUCCESS! Completed checking " + count + " records");
}