Package org.apache.hadoop.hbase.codec

Examples of org.apache.hadoop.hbase.codec.MessageCodec$MessageDecoder

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    int initialBufferSize = 2 * size; // Multiply by 2 to ensure we don't have to grow buffer

    // Test KeyValue codec.
    doCodec(new KeyValueCodec(), cells, cycles, count, initialBufferSize);
    doCodec(new CellCodec(), cells, cycles, count, initialBufferSize);
    doCodec(new MessageCodec(), cells, cycles, count, initialBufferSize);
  }
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  @Test
  public void testEmptyWorks() throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    CountingOutputStream cos = new CountingOutputStream(baos);
    DataOutputStream dos = new DataOutputStream(cos);
    MessageCodec cmc = new MessageCodec();
    Codec.Encoder encoder = cmc.getEncoder(dos);
    encoder.flush();
    dos.close();
    long offset = cos.getCount();
    assertEquals(0, offset);
    CountingInputStream cis = new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
    DataInputStream dis = new DataInputStream(cis);
    Codec.Decoder decoder = cmc.getDecoder(dis);
    assertFalse(decoder.advance());
    dis.close();
    assertEquals(0, cis.getCount());
  }
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  @Test
  public void testOne() throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    CountingOutputStream cos = new CountingOutputStream(baos);
    DataOutputStream dos = new DataOutputStream(cos);
    MessageCodec cmc = new MessageCodec();
    Codec.Encoder encoder = cmc.getEncoder(dos);
    final KeyValue kv =
      new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("q"), Bytes.toBytes("v"));
    encoder.write(kv);
    encoder.flush();
    dos.close();
    long offset = cos.getCount();
    CountingInputStream cis = new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
    DataInputStream dis = new DataInputStream(cis);
    Codec.Decoder decoder = cmc.getDecoder(dis);
    assertTrue(decoder.advance()); // First read should pull in the KV
    assertFalse(decoder.advance()); // Second read should trip over the end-of-stream  marker and return false
    dis.close();
    assertEquals(offset, cis.getCount());
  }
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  @Test
  public void testThree() throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    CountingOutputStream cos = new CountingOutputStream(baos);
    DataOutputStream dos = new DataOutputStream(cos);
    MessageCodec cmc = new MessageCodec();
    Codec.Encoder encoder = cmc.getEncoder(dos);
    final KeyValue kv1 = new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("1"), Bytes.toBytes("1"));
    final KeyValue kv2 = new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("2"), Bytes.toBytes("2"));
    final KeyValue kv3 = new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("3"), Bytes.toBytes("3"));
    encoder.write(kv1);
    encoder.write(kv2);
    encoder.write(kv3);
    encoder.flush();
    dos.close();
    long offset = cos.getCount();
    CountingInputStream cis = new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
    DataInputStream dis = new DataInputStream(cis);
    Codec.Decoder decoder = cmc.getDecoder(dis);
    assertTrue(decoder.advance());
    Cell c = decoder.current();
    assertTrue(CellComparator.equals(c, kv1));
    assertTrue(decoder.advance());
    c = decoder.current();
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    int initialBufferSize = 2 * size; // Multiply by 2 to ensure we don't have to grow buffer

    // Test KeyValue codec.
    doCodec(new KeyValueCodec(), cells, cycles, count, initialBufferSize);
    doCodec(new CellCodec(), cells, cycles, count, initialBufferSize);
    doCodec(new MessageCodec(), cells, cycles, count, initialBufferSize);
  }
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Related Classes of org.apache.hadoop.hbase.codec.MessageCodec$MessageDecoder

  • io.netty.buffer.ByteBuf
  • org.apache.hadoop.hbase.codec.CodecPerformance
  • org.apache.hadoop.hbase.codec.TestCellMessageCodec
  • org.apache.hadoop.hbase.codec.CodecException
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