Java Code Examples for org.jboss.netty.buffer.ChannelBuffers#directBuffer()

The following examples show how to use org.jboss.netty.buffer.ChannelBuffers#directBuffer() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: MessageBatch.java    From jstorm with Apache License 2.0 6 votes vote down vote up 
/**
 * 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();
}
Example 2
Source File: TaskMessage.java    From jstorm with Apache License 2.0 6 votes vote down vote up 
/**
 * 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();
}