Examples of org.jboss.netty.channel.group.ChannelGroupFuture

org.jboss.netty.channel.group.ChannelGroupFuture
- NEVER DO THIS public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) { if (e.getMessage() instanceof ShutdownMessage) { ChannelGroup allChannels = MyServer.getAllChannels(); ChannelGroupFuture future = allChannels.close(); future.awaitUninterruptibly(); // Perform post-shutdown operation // ... } } // GOOD public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) { if (e.getMessage() instanceof ShutdownMessage) { ChannelGroup allChannels = MyServer.getAllChannels(); ChannelGroupFuture future = allChannels.close(); future.addListener(new ChannelGroupFutureListener() { public void operationComplete(ChannelGroupFuture 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. @author The Netty Project (netty-dev@lists.jboss.org) @author Trustin Lee (tlee@redhat.com) @version $Rev: 1262 $, $Date: 2009-04-28 22:35:55 +0900 (Tue, 28 Apr 2009) $ @apiviz.owns org.jboss.netty.channel.group.ChannelGroupFutureListener - - notifies

     * Stop the Server
     */
    public void stop() {
        if (started.getAndSet(false)) {
            runtime.destroy();
            final ChannelGroupFuture future = ALL_CHANNELS.close();
            future.awaitUninterruptibly();
            bootstrap.getFactory().releaseExternalResources();
            ALL_CHANNELS.clear();
        }
    }

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    @Override
    protected void doStop() throws Exception {
        LOG.debug("Stopping producer at address: {}", configuration.getAddress());
        // close all channels
        LOG.trace("Closing {} channels", allChannels.size());
        ChannelGroupFuture future = allChannels.close();
        future.awaitUninterruptibly();


        // release the external resource here and we keep the timer open
        // and then shutdown the thread pools
        if (bossPool != null) {
            bossPool.shutdown();

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  public void stopServer() throws Exception
  {
    LOG.debug("In stopServer method of class: {}",
        this.getClass().getName());
    ChannelGroupFuture future = ALL_CHANNELS.close();
    try {
      future.await();
    } catch (InterruptedException e) {
      LOG.error("Execption occurred while waiting for channels to close: {}",e);
    }
    super.stopServer();
  }

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  @Override
  public void stopServer() throws Exception
  {
    LOG.debug("In stopServer method of class: {}",
        this.getClass().getName());
    ChannelGroupFuture future = ALL_CHANNELS.close();
    try {
      future.await();
    } catch (InterruptedException e) {
      LOG.error("Execption occurred while waiting for channels to close: {}",e);
    }
    serverBootstrap.releaseExternalResources();
    gameAdminService.shutdown();

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    protected void stopServerBootstrap() {
        // close all channels
        LOG.info("ConnectionlessBootstrap disconnecting from {}:{}", configuration.getHost(), configuration.getPort());


        LOG.trace("Closing {} channels", allChannels.size());
        ChannelGroupFuture future = allChannels.close();
        future.awaitUninterruptibly();


        // close server external resources
        if (datagramChannelFactory != null) {
            datagramChannelFactory.releaseExternalResources();
            datagramChannelFactory = null;

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    @Override
    protected void doStop() throws Exception {
        LOG.debug("Stopping producer at address: {}", configuration.getAddress());
        // close all channels
        LOG.trace("Closing {} channels", ALL_CHANNELS.size());
        ChannelGroupFuture future = ALL_CHANNELS.close();
        future.awaitUninterruptibly();


        // and then release other resources
        if (channelFactory != null) {
            channelFactory.releaseExternalResources();
        }

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    @Override
    protected void doStop() throws Exception {
        LOG.debug("Stopping producer at address: {}", configuration.getAddress());
        // close all channels
        LOG.trace("Closing {} channels", ALL_CHANNELS.size());
        ChannelGroupFuture future = ALL_CHANNELS.close();
        future.awaitUninterruptibly();


        // and then release other resources
        if (channelFactory != null) {
            channelFactory.releaseExternalResources();
        }

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         httpKeepAliveRunnable.close();
      }


      // serverChannelGroup has been unbound in pause()
      serverChannelGroup.close().awaitUninterruptibly();
      ChannelGroupFuture future = channelGroup.close().awaitUninterruptibly();


      if (!future.isCompleteSuccess())
      {
         HornetQServerLogger.LOGGER.nettyChannelGroupError();
         Iterator<Channel> iterator = future.getGroup().iterator();
         while (iterator.hasNext())
         {
            Channel channel = iterator.next();
            if (channel.isBound())
            {

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      {
         return;
      }


      // We *pause* the acceptor so no new connections are made
      ChannelGroupFuture future = serverChannelGroup.unbind().awaitUninterruptibly();
      if (!future.isCompleteSuccess())
      {
         HornetQServerLogger.LOGGER.nettyChannelGroupBindError();
         Iterator<Channel> iterator = future.getGroup().iterator();
         while (iterator.hasNext())
         {
            Channel channel = iterator.next();
            if (channel.isBound())
            {

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    }


    public void shutdown() {
        logger.log(Level.INFO, "Shutdown was called.");
        if(channelGroup != null) {
            ChannelGroupFuture future = channelGroup.close();
            future.awaitUninterruptibly();
        }
        logger.log(Level.INFO, "Shutdown complete.");
    }

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