Exemplo n.º 1
0
    /** Send the message over the channel specified by the message. */
    protected void write(Channel channel, PaxosMessage msg) {
      ChannelFuture future;

      // Send out a command.
      future = channel.write(msg); // Write the contents to the channel.
      future.addListener(this);
    }
Exemplo n.º 2
0
    /** Starts the initiation process for synching. */
    public void startClient(final String host, final int port, final PaxosMessage msg) {
      ChannelFuture future;
      ClientBootstrap client;

      // Bootstrap a new client. Not sure if the
      // clientFactory is thread-safe or not, so play it safe.
      synchronized (this) {
        client = new ClientBootstrap(clientFactory);
      }

      // Set some TCP options.
      client.setOption("tcpNoDelay", true);
      client.setOption("keepAlive", true);

      // Create a new connection & state manager.
      final CommManager manager = new CommManager();
      client.setPipelineFactory(
          new ChannelPipelineFactory() {
            public ChannelPipeline getPipeline() {
              return Channels.pipeline(
                  new PaxosMessageDecoder(), new PaxosMessageEncoder(), manager);
            }
          });

      // Include the data we want to send.
      manager.start(msg);

      // Try to connect to the host.
      future = client.connect(new InetSocketAddress(host, port));
      future.addListener(
          new ChannelFutureListener() {
            public void operationComplete(ChannelFuture f) {
              if (f.isDone() && !f.isSuccess()) {
                // This is a connection failure. This is not necessarily
                // the end of the world. Chances are that a client has
                // shut down and its routing information hasn't been updated yet.
                if (!network.updateDisconnected(host, port)) {}
              }
            }
          });
    }
Exemplo n.º 3
0
 /** The write operation has completed. */
 @Override
 public void operationComplete(ChannelFuture future) throws Exception {
   // Try closing the channel so that we don't leak descriptors.
   future.getChannel().close();
 }