Examples of org.apache.avro.io.BinaryDecoder$BufferAccessor

org.apache.avro.io.BinaryDecoder
BufferAccessor is used by BinaryEncoder to enable {@link ByteSource}s and the InputStream returned by {@link BinaryDecoder.inputStream} to access theBinaryEncoder's buffer. When a BufferAccessor is created, it is attached to a BinaryDecoder and its buffer. Its accessors directly reference the BinaryDecoder's buffer. When detach() is called, it stores references to the BinaryDecoder's buffer directly. The BinaryDecoder only detaches a BufferAccessor when it is initializing to a new ByteSource. Therefore, a client that is using the InputStream returned by BinaryDecoder.inputStream can continue to use that stream after a BinaryDecoder has been reinitialized to read from new data.

      try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        BinaryEncoder encoder = EncoderFactory.get().binaryEncoder(baos, null);
        ResolvingGrammarGenerator.encode(encoder, field.schema(), json);
        encoder.flush();
        BinaryDecoder decoder =
          DecoderFactory.get().binaryDecoder(baos.toByteArray(), null);
        defaultValue =
          createDatumReader(field.schema()).read(null, decoder);


        defaultValueCache.put(field, defaultValue);

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     *
     * @throws IOException if deserialization failed
     */
    public static <T extends SpecificRecord> T deserializeAvro(org.apache.avro.Schema writer, ByteBuffer bytes, T ob) throws IOException
    {
        BinaryDecoder dec = DIRECT_DECODERS.createBinaryDecoder(ByteBufferUtil.getArray(bytes), null);
        SpecificDatumReader<T> reader = new SpecificDatumReader<T>(writer);
        reader.setExpected(ob.getSchema());
        return reader.read(ob, dec);
    }

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     *
     * @throws IOException if deserialization failed
     */
    public static <T extends SpecificRecord> T deserializeAvro(org.apache.avro.Schema writer, ByteBuffer bytes, T ob) throws IOException
    {
        BinaryDecoder dec = DIRECT_DECODERS.createBinaryDecoder(ByteBufferUtil.getArray(bytes), null);
        SpecificDatumReader<T> reader = new SpecificDatumReader<T>(writer);
        reader.setExpected(ob.getSchema());
        return reader.read(ob, dec);
    }

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     *
     * @throws IOException if deserialization failed
     */
    public static <T extends SpecificRecord> T deserializeAvro(org.apache.avro.Schema writer, ByteBuffer bytes, T ob) throws IOException
    {
        BinaryDecoder dec = DIRECT_DECODERS.createBinaryDecoder(ByteBufferUtil.getArray(bytes), null);
        SpecificDatumReader<T> reader = new SpecificDatumReader<T>(writer);
        reader.setExpected(ob.getSchema());
        return reader.read(ob, dec);
    }

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      out.writeInt(0);                              // empty metadata
      out.writeString("");                          // bogus message name
      List<ByteBuffer> response =
        getTransceiver().transceive(bbo.getBufferList());
      ByteBufferInputStream bbi = new ByteBufferInputStream(response);
      BinaryDecoder in =
        DecoderFactory.get().binaryDecoder(bbi, null);
      readHandshake(in);
      return this.remote;
    } finally {
      handshakeLock.unlock();

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    @Override
    @SuppressWarnings("unchecked")
    public void handleResult(List<ByteBuffer> responseBytes) {
      ByteBufferInputStream bbi = new ByteBufferInputStream(responseBytes);
      BinaryDecoder in = DecoderFactory.get().binaryDecoder(bbi, null);
      try {
        if (!readHandshake(in)) {
          // Resend the handshake and return
          Request handshake = new Request(request);
          getTransceiver().transceive

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     *
     * @throws IOException if deserialization failed
     */
    public static <T extends SpecificRecord> T deserializeAvro(org.apache.avro.Schema writer, ByteBuffer bytes, T ob) throws IOException
    {
        BinaryDecoder dec = DIRECT_DECODERS.createBinaryDecoder(ByteBufferUtil.getArray(bytes), null);
        SpecificDatumReader<T> reader = new SpecificDatumReader<T>(writer);
        reader.setExpected(ob.getSchema());
        return reader.read(ob, dec);
    }

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  @SuppressWarnings("deprecation")
  protected Decoder createDecoder() throws IOException {
    switch(codecType) {
      case BINARY:
        return new BinaryDecoder(getOrCreateInputStream());
      case JSON:
        return new JsonDecoder(schema, getOrCreateInputStream());
    }
    return null;
  }

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          break;
        case RECORD:
          SpecificDatumReader reader = new SpecificDatumReader(field.schema());
          byte[] val = entry.getValue().get();
          // TODO reuse decoder
          BinaryDecoder decoder = DecoderFactory.defaultFactory().createBinaryDecoder(val, null);
          persistent.put(field.pos(), reader.read(null, decoder));
          break;
        default:
          persistent.put(field.pos(), fromBytes(field.schema(), entry.getValue().get()));
      }

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      try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        BinaryEncoder encoder = EncoderFactory.get().binaryEncoder(baos, null);
        ResolvingGrammarGenerator.encode(encoder, field.schema(), json);
        encoder.flush();
        BinaryDecoder decoder =
          DecoderFactory.get().binaryDecoder(baos.toByteArray(), null);
        defaultValue =
          createDatumReader(field.schema()).read(null, decoder);


        defaultValueCache.put(field, defaultValue);

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