Package org.apache.hadoop.io.compress

Examples of org.apache.hadoop.io.compress.CompressionOutputStream

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      out.write(b, off, len);
    }

    @Override
    public void flush() throws IOException {
      CompressionOutputStream cout = (CompressionOutputStream) out;
      cout.finish();
      cout.flush();
      cout.resetState();
    }
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   */
  public static class SlowCodec extends GzipCodec {
    @Override
    public CompressionOutputStream createOutputStream(OutputStream out)
        throws IOException {
      CompressionOutputStream ret = super.createOutputStream(out);
      CompressionOutputStream spy = Mockito.spy(ret);
      Mockito.doAnswer(new GenericTestUtils.SleepAnswer(2))
        .when(spy).write(Mockito.<byte[]>any(), Mockito.anyInt(), Mockito.anyInt());
      return spy;
    }
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        PowerMockito.whenNew(FileOutputStream.class).withAnyArguments()
                .thenReturn(fileOutputStream);

        CompressionInputStream inputStream = Mockito
                .mock(CompressionInputStream.class);
        CompressionOutputStream outputStream = Mockito
                .mock(CompressionOutputStream.class);
        Mockito.when(codec.createInputStream(Mockito.any(InputStream.class)))
                .thenReturn(inputStream);

        Mockito.when(codec.createOutputStream(Mockito.any(OutputStream.class)))
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      out.write(b, off, len);
    }

    @Override
    public void flush() throws IOException {
      CompressionOutputStream cout = (CompressionOutputStream) out;
      cout.finish();
      cout.flush();
      cout.resetState();
    }
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   */
  public static class SlowCodec extends GzipCodec {
    @Override
    public CompressionOutputStream createOutputStream(OutputStream out)
        throws IOException {
      CompressionOutputStream ret = super.createOutputStream(out);
      CompressionOutputStream spy = Mockito.spy(ret);
      Mockito.doAnswer(new GenericTestUtils.SleepAnswer(2))
        .when(spy).write(Mockito.<byte[]>any(), Mockito.anyInt(), Mockito.anyInt());
      return spy;
    }
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      out.write(b, off, len);
    }
   
    @Override
    public void flush() throws IOException {
      CompressionOutputStream cout = (CompressionOutputStream) out;
      cout.finish();
      cout.flush();
      cout.resetState();
    }
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    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,
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    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,
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      out.write(b, off, len);
    }

    @Override
    public void flush() throws IOException {
      CompressionOutputStream cout = (CompressionOutputStream) out;
      cout.finish();
      cout.flush();
      cout.resetState();
    }
View Full Code Here
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  private final BZip2Codec codec = new BZip2Codec();

  @Override
  public byte[] compress(byte[] bytes) {
    ByteArrayOutputStream bos = null;
    CompressionOutputStream sos = null;
    DataOutputStream dos = null;
    byte[] compressedBytes = null;

    try {
      bos = new ByteArrayOutputStream();
      sos = codec.createOutputStream(bos);
      dos = new DataOutputStream(sos);
      dos.close(); // Flush the stream as no more data will be sent.

      compressedBytes = bos.toByteArray();
    } catch (IOException ioe) {
      LOG.error("Unable to compress", ioe);
    } finally {
      try {
        sos.close();
        bos.close();
      } catch (IOException e) {
        LOG.warn("Failed to close compression streams.", e);
      }
    }
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