Channel.write(Object obj)

[MichaelW86]

Hallo
I'm trying to use Netty for a Socket Server but i have problems to write a
message to the downstream channel. When i use the channel.write() Method the
Exception: java.lang.UnsupportedOperationException is returned by the
corresponding future.getCause() Method. I think i do something wrong... 

Here is the Server Code:


/***********************************************************************************/
/* Class NJServer */

public class NJServer {

  public static void main(String[] args) throws Exception {
    new NJServer();
  }
	
 public NJServer() {
  this.factory = new NioServerSocketChannelFactory(
      Executors.newCachedThreadPool(),
      Executors.newCachedThreadPool());

  this.bootstrap = new ServerBootstrap(factory);

  bootstrap.setPipelineFactory(new NJServerPipelineFactory());
		
  this.channel = bootstrap.bind(new InetSocketAddress(1234));

  allChannels.add(channel);

  byte commando = 1;
  [...]

  ChannelBuffer buf = ChannelBuffers.buffer(16);
  buf.writeByte(commando);
  [...]

  /* HERE IS THE PROBLEM */
  f = this.channel.write(buf);

  f.addListener(new ChannelFutureListener() {
    public void operationComplete(ChannelFuture future) {
      if (future.isSuccess()) { [...] }
      else { System.out.print(future.getCause()); }
    }
  });

  waitForShutdownCommand();

  [...]
 }

}
			
/* Class NJServerPipelineFactory */
[...]

pipeline.addLast("handler", new NJServerHandler());

[...]


/* Class NJServerHandler */
[...]

@Override
public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e) {
  e.getChannel().getPipeline().addFirst("encoder", new NJMessageEncoder());
  e.getChannel().getPipeline().addFirst("decoder", new NJMessageDecoder());
}

[...]

/***********************************************************************************/

The NJMessageEncoder is never called!! The NJMessageDecoder works. So whats
the problem? The Client Application is a Java Socket Client, where Netty is
not used.

Thanks in advance!

Michael 




		
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