Java ChannelBufferOutputStream.close方法代碼示例

import org.jboss.netty.buffer.ChannelBufferOutputStream; //導入方法依賴的package包/類
/**
 * create a buffer containing the encoding of this batch
 */
ChannelBuffer buffer() throws Exception {
	ChannelBufferOutputStream bout = new ChannelBufferOutputStream(
			ChannelBuffers.directBuffer(encoded_length));

	for (Object msg : msgs)
		if (msg instanceof TaskMessage)
			writeTaskMessage(bout, (TaskMessage) msg);
		else {
			// LOG.debug("Write one non-TaskMessage {}", msg );
			((ControlMessage) msg).write(bout);
		}

	// add a END_OF_BATCH indicator
	ControlMessage.EOB_MESSAGE.write(bout);
	// LOG.debug("ControlMessage.EOB_MESSAGE " );

	bout.close();

	return bout.buffer();
}
 

import org.jboss.netty.buffer.ChannelBufferOutputStream; //導入方法依賴的package包/類
/**
 * create a buffer containing the encoding of this batch
 */
ChannelBuffer buffer() throws Exception {
    ChannelBufferOutputStream bout = new ChannelBufferOutputStream(ChannelBuffers.directBuffer(encoded_length));

    for (Object msg : msgs)
        if (msg instanceof TaskMessage)
            writeTaskMessage(bout, (TaskMessage) msg);
        else {
            // LOG.debug("Write one non-TaskMessage {}", msg );
            ((ControlMessage) msg).write(bout);
        }

    // add a END_OF_BATCH indicator
    ControlMessage.EOB_MESSAGE.write(bout);
    // LOG.debug("ControlMessage.EOB_MESSAGE " );

    bout.close();

    return bout.buffer();
}
 

import org.jboss.netty.buffer.ChannelBufferOutputStream; //導入方法依賴的package包/類
/**
 * create a buffer containing the encoding of this batch
 */
ChannelBuffer buffer() throws Exception {
    ChannelBufferOutputStream bout = new ChannelBufferOutputStream(ChannelBuffers.directBuffer(encoded_length));
    
    for (Object msg : msgs) 
        if (msg instanceof TaskMessage)
            writeTaskMessage(bout, (TaskMessage)msg);
        else
            ((ControlMessage)msg).write(bout);
    
    //add a END_OF_BATCH indicator
    ControlMessage.EOB_MESSAGE.write(bout);

    bout.close();

    return bout.buffer();
}
 

import org.jboss.netty.buffer.ChannelBufferOutputStream; //導入方法依賴的package包/類
/**
 * create a buffer containing the encoding of this batch
 */
@Override
public ChannelBuffer buffer() throws Exception {
    ChannelBufferOutputStream bout = new ChannelBufferOutputStream(ChannelBuffers.directBuffer(encodedLength));

    for (Object msg : msgs)
        if (msg instanceof TaskMessage)
            writeTaskMessage(bout, (TaskMessage) msg);
        else {
            // LOG.debug("Write one non-TaskMessage {}", msg );
            ((ControlMessage) msg).write(bout);
        }

    // add a END_OF_BATCH indicator
    ControlMessage.EOB_MESSAGE.write(bout);
    // LOG.debug("ControlMessage.EOB_MESSAGE " );

    bout.close();

    return bout.buffer();
}
 

import org.jboss.netty.buffer.ChannelBufferOutputStream; //導入方法依賴的package包/類
/**
 * create a buffer containing the encoding of this batch
 */
@Override
public ChannelBuffer buffer() throws Exception {
    int payloadLen = 0;
    if (_message != null)
        payloadLen = _message.length;

    int totalLen = 8 + payloadLen;
    ChannelBufferOutputStream bout = new ChannelBufferOutputStream(ChannelBuffers.directBuffer(totalLen));
    bout.writeShort(_type);

    if (_task > Short.MAX_VALUE)
        throw new RuntimeException("Task ID should not exceed " + Short.MAX_VALUE);

    bout.writeShort((short) _task);
    bout.writeInt(payloadLen);
    if (payloadLen > 0)
        bout.write(_message);

    bout.close();
    return bout.buffer();
}
 

import org.jboss.netty.buffer.ChannelBufferOutputStream; //導入方法依賴的package包/類
private Object doEncode(Request request, ChannelHandlerContext ctx, Channel channel) throws Exception {
    //version from request header;
    byte ver = request.getHeader().getSerializeVersion();
    //overwrite if request header == 0 and version != 0, use version
    if ( ver == 0 && version != 0)
        ver = version;
    int pLen = request.getPayload() == null ? 0 : request.getPayload().length;
    byte[] header = request.getHeader().toByte();
    // encoding length , and check the max value of integer, should be 2GB
    int len = TOTAL + header.length + pLen + R_SIZE;
    if ( len > Integer.MAX_VALUE ) {
        channel.close();
        throw new Exception( len+" exceeding Integer.MAX_VALUE");
    }
    ChannelBufferOutputStream bout =   new ChannelBufferOutputStream(dynamicBuffer(
                len, ctx.getChannel().getConfig().getBufferFactory()));
    bout.write(SIGNATURE);
    bout.write(ver);
    bout.writeInt(len);
    bout.writeShort((short) header.length);
    bout.write(header);
    // request type
    bout.write((byte) request.getType().ordinal());
    bout.write( request.getPayload());
    bout.flush();
    bout.close();
    ChannelBuffer encoded = bout.buffer();
    return encoded;
}
 

import org.jboss.netty.buffer.ChannelBufferOutputStream; //導入方法依賴的package包/類
/**
 * create a buffer containing the encoding of this batch
 */
ChannelBuffer buffer() throws Exception {
    ChannelBufferOutputStream bout = new ChannelBufferOutputStream(ChannelBuffers.directBuffer(encoded_length));
    
    for (TaskMessage msg : msgs)
        writeTaskMessage(bout, msg);

    //add a END_OF_BATCH indicator
    ControlMessage.EOB_MESSAGE.write(bout);

    bout.close();

    return bout.buffer();
}
 

import org.jboss.netty.buffer.ChannelBufferOutputStream; //導入方法依賴的package包/類
@Override
protected Object encode(ChannelHandlerContext ctx,
                        Channel channel, Object msg) throws Exception {
  if (!(msg instanceof WritableRequest)) {
    throw new IllegalArgumentException(
        "encode: Got a message of type " + msg.getClass());
  }

  // Encode the request
  if (LOG.isDebugEnabled()) {
    startEncodingNanoseconds = TIME.getNanoseconds();
  }
  WritableRequest writableRequest = (WritableRequest) msg;
  int requestSize = writableRequest.getSerializedSize();
  ChannelBuffer channelBuffer;
  if (requestSize == WritableRequest.UNKNOWN_SIZE) {
    channelBuffer = ChannelBuffers.dynamicBuffer(
        bufferStartingSize,
        ctx.getChannel().getConfig().getBufferFactory());
  } else {
    requestSize += LENGTH_PLACEHOLDER.length + 1;
    channelBuffer = useDirectBuffers ?
        ChannelBuffers.directBuffer(requestSize) :
        ChannelBuffers.buffer(requestSize);
  }
  ChannelBufferOutputStream outputStream =
      new ChannelBufferOutputStream(channelBuffer);
  outputStream.write(LENGTH_PLACEHOLDER);
  outputStream.writeByte(writableRequest.getType().ordinal());
  try {
    writableRequest.write(outputStream);
  } catch (IndexOutOfBoundsException e) {
    LOG.error("encode: Most likely the size of request was not properly " +
        "specified - see getSerializedSize() in " +
        writableRequest.getType().getRequestClass());
    throw new IllegalStateException(e);
  }
  outputStream.flush();
  outputStream.close();

  // Set the correct size at the end
  ChannelBuffer encodedBuffer = outputStream.buffer();
  encodedBuffer.setInt(0, encodedBuffer.writerIndex() - 4);
  if (LOG.isDebugEnabled()) {
    LOG.debug("encode: Client " + writableRequest.getClientId() + ", " +
        "requestId " + writableRequest.getRequestId() +
        ", size = " + encodedBuffer.writerIndex() + ", " +
        writableRequest.getType() + " took " +
        Times.getNanosSince(TIME, startEncodingNanoseconds) + " ns");
  }
  return encodedBuffer;
}