Package org.apache.avro.util

Examples of org.apache.avro.util.ByteBufferInputStream

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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);
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    BinaryEncoder e2 = e_factory.binaryEncoder(bbo2, null);
    e2.writeBytes(b1);
    e2.flush();
   
    DirectBinaryDecoder d = new DirectBinaryDecoder(
        new ByteBufferInputStream(bbo1.getBufferList()));
    ByteBuffer bb1 = d.readBytes(null);
    Assert.assertEquals(b1.length, bb1.limit() - bb1.position());
   
    d.configure(new ByteBufferInputStream(bbo2.getBufferList()));
    ByteBuffer bb2 = d.readBytes(null);
    Assert.assertEquals(b1.length, bb2.limit() - bb2.position());
   
  }
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    BinaryEncoder e2 = e_factory.binaryEncoder(bbo2, null);
    e2.writeBytes(b1);
    e2.flush();
   
    DirectBinaryDecoder d = new DirectBinaryDecoder(
        new ByteBufferInputStream(bbo1.getBufferList()));
    ByteBuffer bb1 = d.readBytes(null);
    Assert.assertEquals(b1.length, bb1.limit() - bb1.position());
   
    d.configure(new ByteBufferInputStream(bbo2.getBufferList()));
    ByteBuffer bb2 = d.readBytes(null);
    Assert.assertEquals(b1.length, bb2.limit() - bb2.position());
   
  }
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   * response or error.  Transciever is used by connection-based servers to
   * track handshake status of connection. */
  public List<ByteBuffer> respond(List<ByteBuffer> buffers,
                                  Transceiver connection) throws IOException {
    Decoder in = DecoderFactory.get().binaryDecoder(
        new ByteBufferInputStream(buffers), null);
    ByteBufferOutputStream bbo = new ByteBufferOutputStream();
    BinaryEncoder out = EncoderFactory.get().binaryEncoder(bbo, null);
    Exception error = null;
    RPCContext context = new RPCContext();
    List<ByteBuffer> payload = null;
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      writeHandshake(out);
      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 {
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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);
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    int length = WritableUtils.readVInt(in);
    byte[] arr = new byte[length];
    in.readFully(arr);
    List<ByteBuffer> list = new ArrayList<ByteBuffer>();
    list.add(ByteBuffer.wrap(arr));
    ByteBufferInputStream is = new ByteBufferInputStream(list);

    try {
      deserializer.open(is);
      T newObj = deserializer.deserialize(obj);
      return newObj;

    }finally {
      if(deserializer != null)
        deserializer.close();
      if(is != null)
        is.close();
    }
  }
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  @SuppressWarnings("unchecked")
  public static <T> void testSerializeDeserialize(T... objects) throws Exception {
    ByteBufferOutputStream os = new ByteBufferOutputStream();
    DataOutputStream dos = new DataOutputStream(os);
    ByteBufferInputStream is = null;
    DataInputStream dis = null;
   
    GoraMapReduceUtils.setIOSerializations(conf, true);
   
    try {
      for(T before : objects) {
        IOUtils.serialize(conf, dos , before, (Class<T>)before.getClass());
        dos.flush();
      }
      
      is = new ByteBufferInputStream(os.getBufferList());
      dis = new DataInputStream(is);
     
      for(T before : objects) {
        T after = IOUtils.deserialize(conf, dis, null, (Class<T>)before.getClass());
       
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      // send it and get the response
      List<ByteBuffer> response = transceiver.transceive(byteBufferOutputStream.getBufferList());


      // parse the response
      ByteBufferInputStream byteBufferInputStream = new ByteBufferInputStream(response);

      DatumReader<HandshakeResponse> handshakeReader = new SpecificDatumReader<HandshakeResponse>(HandshakeResponse.class);

      HandshakeResponse handshakeResponse = handshakeReader.read(null, DecoderFactory.get().binaryDecoder(byteBufferInputStream, null));
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Related Classes of org.apache.avro.util.ByteBufferInputStream

  • org.apache.avro.io.TestBinaryDecoder
  • org.apache.avro.ipc.Requestor
  • org.apache.avro.ipc.Requestor$TransceiverCallback
  • org.apache.avro.ipc.Responder
  • org.apache.avro.tool.RpcProtocolTool
  • org.apache.gora.util.IOUtils
  • org.apache.gora.util.TestIOUtils
  • java.io.EOFException
  • java.nio.ByteBuffer
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