Examples of ChannelFuture

com.facebook.presto.jdbc.internal.netty.channel.ChannelFuture
- NEVER DO THIS {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, {@link MessageEvent} e) {if (e.getMessage() instanceof GoodByeMessage) { {@link ChannelFuture} future = e.getChannel().close();future.awaitUninterruptibly(); // Perform post-closure operation // ... } } // GOOD {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, {@link MessageEvent} e) {if (e.getMessage() instanceof GoodByeMessage) { {@link ChannelFuture} future = e.getChannel().close();future.addListener(new {@link ChannelFutureListener}() { public void operationComplete( {@link ChannelFuture} future) {// Perform post-closure operation // ... } }); } }
In spite of the disadvantages mentioned above, there are certainly the cases where it is more convenient to call {@link #await()}. In such a case, please make sure you do not call {@link #await()} in an I/O thread. Otherwise,{@link IllegalStateException} will be raised to prevent a dead lock.
Do not confuse I/O timeout and await timeout
The timeout value you specify with {@link #await(long)}, {@link #await(long,TimeUnit)}, {@link #awaitUninterruptibly(long)}, or {@link #awaitUninterruptibly(long,TimeUnit)} are not related with I/Otimeout at all. If an I/O operation times out, the future will be marked as 'completed with failure,' as depicted in the diagram above. For example, connect timeout should be configured via a transport-specific option:
```
 // BAD - NEVER DO THIS {@link ClientBootstrap} b = ...;{@link ChannelFuture} f = b.connect(...);f.awaitUninterruptibly(10, TimeUnit.SECONDS); if (f.isCancelled()) { // Connection attempt cancelled by user } else if (!f.isSuccess()) { // You might get a NullPointerException here because the future // might not be completed yet. f.getCause().printStackTrace(); } else { // Connection established successfully } // GOOD {@link ClientBootstrap} b = ...;// Configure the connect timeout option. b.setOption("connectTimeoutMillis", 10000); {@link ChannelFuture} f = b.connect(...);f.awaitUninterruptibly(); // Now we are sure the future is completed. assert f.isDone(); if (f.isCancelled()) { // Connection attempt cancelled by user } else if (!f.isSuccess()) { f.getCause().printStackTrace(); } else { // Connection established successfully } 
```
@apiviz.landmark @apiviz.owns com.facebook.presto.jdbc.internal.netty.channel.ChannelFutureListener - - notifies
io.netty.channel.ChannelFuture
- NEVER DO THIS {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, GoodByeMessage msg) {{@link ChannelFuture} future = ctx.channel().close();future.awaitUninterruptibly(); // Perform post-closure operation // ... } // GOOD {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, GoodByeMessage msg) {{@link ChannelFuture} future = ctx.channel().close();future.addListener(new {@link ChannelFutureListener}() { public void operationComplete( {@link ChannelFuture} future) {// Perform post-closure operation // ... } }); }
In spite of the disadvantages mentioned above, there are certainly the cases where it is more convenient to call {@link #await()}. In such a case, please make sure you do not call {@link #await()} in an I/O thread. Otherwise,{@link BlockingOperationException} will be raised to prevent a dead lock.
Do not confuse I/O timeout and await timeout
The timeout value you specify with {@link #await(long)}, {@link #await(long,TimeUnit)}, {@link #awaitUninterruptibly(long)}, or {@link #awaitUninterruptibly(long,TimeUnit)} are not related with I/Otimeout at all. If an I/O operation times out, the future will be marked as 'completed with failure,' as depicted in the diagram above. For example, connect timeout should be configured via a transport-specific option:
```
 // BAD - NEVER DO THIS {@link Bootstrap} b = ...;{@link ChannelFuture} f = b.connect(...);f.awaitUninterruptibly(10, TimeUnit.SECONDS); if (f.isCancelled()) { // Connection attempt cancelled by user } else if (!f.isSuccess()) { // You might get a NullPointerException here because the future // might not be completed yet. f.getCause().printStackTrace(); } else { // Connection established successfully } // GOOD {@link Bootstrap} b = ...;// Configure the connect timeout option. b.setOption( {@link ChannelOption}.CONNECT_TIMEOUT_MILLIS, 10000); {@link ChannelFuture} f = b.connect(...);f.awaitUninterruptibly(); // Now we are sure the future is completed. assert f.isDone(); if (f.isCancelled()) { // Connection attempt cancelled by user } else if (!f.isSuccess()) { f.getCause().printStackTrace(); } else { // Connection established successfully } 
```
net.gleamynode.netty.channel.ChannelFuture
@author The Netty Project (netty@googlegroups.com) @author Trustin Lee (trustin@gmail.com) @version $Rev: 476 $, $Date: 2008-07-04 15:06:37 +0900 (Fri, 04 Jul 2008) $ @apiviz.landmark @apiviz.owns net.gleamynode.netty.channel.ChannelFutureListener - - notifies
net.minecraft.util.io.netty.channel.ChannelFuture
org.elasticsearch.common.netty.channel.ChannelFuture
org.jboss.netty.channel.ChannelFuture
The result of an asynchronous {@link Channel} I/O operation.
All I/O operations in Netty are asynchronous. It means any I/O calls will return immediately with no guarantee that the requested I/O operation has been completed at the end of the call. Instead, you will be returned with a {@link ChannelFuture} instance which tells you when the requested I/Ooperation has succeeded, failed, or cancelled.
Various methods are provided to let you check if the I/O operation has been completed, wait for the completion, and retrieve the result of the I/O operation. It also allows you to add more than one {@link ChannelFutureListener}so you can get notified when the I/O operation has been completed. @author The Netty Project (netty-dev@lists.jboss.org) @author Trustin Lee (tlee@redhat.com) @version $Rev: 987 $, $Date: 2009-03-04 23:27:20 +0900 (Wed, 04 Mar 2009) $ @apiviz.landmark @apiviz.owns org.jboss.netty.channel.ChannelFutureListener - - notifies

Examples of org.jboss.netty.channel.ChannelFuture

   protected ChannelFuture handleRefusedChannel(ChannelHandlerContext ctx, ChannelEvent e,
         InetSocketAddress inetSocketAddress) throws Exception
   {
      if (listener == null)
         return null;
      ChannelFuture result = listener.refused(ctx, e, inetSocketAddress);
      return result;
   }

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture

   protected ChannelFuture handleAllowedChannel(ChannelHandlerContext ctx, ChannelEvent e,
         InetSocketAddress inetSocketAddress) throws Exception
   {
      if (listener == null)
         return null;
      ChannelFuture result = listener.allowed(ctx, e, inetSocketAddress);
      return result;
   }

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture

                  // CONNECTED
                  InetSocketAddress inetSocketAddress = (InetSocketAddress) e.getChannel().getRemoteAddress();
                  if (!accept(ctx, e, inetSocketAddress))
                  {
                     ctx.setAttachment(Boolean.TRUE);
                     ChannelFuture future = handleRefusedChannel(ctx, e, inetSocketAddress);
                     if (future != null)
                     {
                        future.addListener(ChannelFutureListener.CLOSE);
                     }
                     else
                     {
                        Channels.close(e.getChannel());
                     }

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture

    public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
      // remeber the event. it will be sent upstream when session has been created
    _connectedEvent = e;
    String id = _session == null ? "?" : _session.getId();
    // send the session id to client
    ChannelFuture future = Channels.future(ctx.getChannel());
    Channels.write(ctx, future, ChannelBuffers.wrappedBuffer(id.getBytes()));
    }

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture

    ChannelPipeline currentPipeline = ctx.getPipeline();
    pipeline.mixin(currentPipeline);
    ctx.setAttachment(session);
    _channel = ctx.getChannel();
    // first send session and wait until it has been transmitted
    ChannelFuture future = Channels.future(ctx.getChannel());
    Channels.write(ctx, future, ChannelBuffers.wrappedBuffer(session.getId().getBytes()));
    try
    {
      future.await();
    }
    catch (InterruptedException e)
    {
      // TODO Auto-generated catch block
      e.printStackTrace();

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture

          HessianProxyFactory factory = new HessianProxyFactory(executor, host.getName()+":"+host.getPort());
          bootstrap.setPipelineFactory(
                  new RPCClientPipelineFactory(executor, factory));
          
           // Start the connection attempt.
          ChannelFuture future = bootstrap.connect(new InetSocketAddress(host.getName(), host.getPort()));
          try
        {
          future.await(10000);
          connected = future.isSuccess();




          if (connected)
          {
              Map options = new HashMap();
            proxy = (AsyncServiceManagerServer) factory.create(AsyncServiceManagerServer.class, ClientMain.class.getClassLoader(), options);
            connected = ((Boolean)((Future)proxy.isServiceManager()).get(10, TimeUnit.SECONDS)).booleanValue();
            if (connected)
            {
            proxies.put(host.getName(), proxy);
            Host newHost = new Host(host.getName(), host.getPort());
            newHost.setIncluded(host.isIncluded());
            newHost.setState("CONNECTED");
            hosts.updateObject(newHost);
            if (host.isIncluded())
              servicesTable.addService(host.getName(), proxy);
            }
            else
              future.getChannel().close();
          }
        }
        catch (Exception e)
        {
          System.out.println("error accessing "+host.getName());
          connected = false;
          if (future != null)
            future.getChannel().close();
        }
        
      }
        
      if (!connected)

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture


  @Override
  void timedOut(ChannelHandlerContext ctx)
  {
      Constants.ahessianLogger.info("write timed out -> send empty buffer heartbeat");
    ChannelFuture future = Channels.future(_ctx.getChannel());
    ChannelBuffer b = ChannelBuffers.buffer(1);
    b.writeByte(0);
        _ctx.sendDownstream(new DownstreamMessageEvent(_ctx.getChannel(), future, b, _ctx.getChannel().getRemoteAddress()));
  }

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture

                  
                });
            }
        });
        
        ChannelFuture f = bootstrap.connect();
        channel = f.getChannel();
        
        mcast.init(new ChannelPipelineFactory() {
            public ChannelPipeline getPipeline() {
                return Channels.pipeline(new SimpleChannelUpstreamHandler()
                {

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture

        }


        Channel channel = getFactory().newChannel(bossPipeline);


        // Wait until the future is available.
        ChannelFuture future = null;
        do {
            try {
                future = futureQueue.poll(Integer.MAX_VALUE, TimeUnit.SECONDS);
            } catch (InterruptedException e) {
                // Ignore
            }
        } while (future == null);


        // Wait for the future.
        future.awaitUninterruptibly();
        if (!future.isSuccess()) {
            future.getChannel().close().awaitUninterruptibly();
            throw new ChannelException("Failed to bind to: " + localAddress, future.getCause());
        }


        return channel;
    }

View Full Code Here

Examples of org.jboss.netty.channel.ChannelFuture


          @Override
          public void run()
          {
            //System.err.println("Client running on thread: " + Thread.currentThread());
            ChannelFuture connectFuture = _clientBootstrap.connect(new LocalAddress(serverAddr));
            connectFuture.awaitUninterruptibly();
            _channel = connectFuture.getChannel();
            _lock.lock();
            try
            {
              _connected = connectFuture.isSuccess();
              _connectedCondition.signalAll();
              while (!_shutdownRequested)
              {
                try
                {

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.

Examples of ChannelFuture

Do not confuse I/O timeout and await timeout

Do not confuse I/O timeout and await timeout

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture

Examples of org.jboss.netty.channel.ChannelFuture