Package co.cask.tigon.io

Examples of co.cask.tigon.io.BinaryEncoder

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  @Override
  public void emit(T data, Map<String, Object> partitions) {
    try {
      ByteArrayOutputStream output = new ByteArrayOutputStream();
      output.write(schemaHash);
      writer.encode(data, new BinaryEncoder(output));
      queueProducer.enqueue(new QueueEntry(Maps.transformValues(partitions, PARTITION_MAP_TRANSFORMER),
                                           output.toByteArray()));
    } catch (IOException e) {
      throw Throwables.propagate(e);
    }
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  // many entries will have no hash keys. Serialize that once and for good
  private static byte[] serializeEmptyHashKeys() {
    try {
      // we don't synchronize here: the worst thing that go wrong here is repeated assignment to the same value
      ByteArrayOutputStream bos = new ByteArrayOutputStream();
      Encoder encoder = new BinaryEncoder(bos);
      encoder.writeInt(0);
      return bos.toByteArray();
    } catch (IOException e) {
      throw new RuntimeException("encoding empty hash keys went wrong - bailing out: " + e.getMessage(), e);
    }
  }
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    // many entries will have no hash keys. Reuse a static value for that
    if (hashKeys == null || hashKeys.isEmpty()) {
      return SERIALIZED_EMPTY_HASH_KEYS;
    }
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    Encoder encoder = new BinaryEncoder(bos);
    encoder.writeInt(hashKeys.size());
    for (Map.Entry<String, Integer> entry : hashKeys.entrySet()) {
      encoder.writeString(entry.getKey()).writeInt(entry.getValue());
    }
    encoder.writeInt(0); // per Avro spec, end with a (block of length) zero
    return bos.toByteArray();
  }
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Related Classes of co.cask.tigon.io.BinaryEncoder

  • co.cask.tigon.data.queue.QueueEntry
  • co.cask.tigon.internal.app.runtime.flow.DatumOutputEmitter
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