Examples of io.netty.channel.group.ChannelGroupFuture

io.netty.channel.group.ChannelGroupFuture
- NEVER DO THIS {@code @Override}public void messageReceived( {@link ChannelHandlerContext} ctx, ShutdownMessage msg) {{@link ChannelGroup} allChannels = MyServer.getAllChannels();{@link ChannelGroupFuture} future = allChannels.close();future.awaitUninterruptibly(); // Perform post-shutdown operation // ... } // GOOD {@code @Override}public void messageReceived(ChannelHandlerContext ctx, ShutdownMessage msg) { {@link ChannelGroup} allChannels = MyServer.getAllChannels();{@link ChannelGroupFuture} future = allChannels.close();future.addListener(new {@link ChannelGroupFutureListener}() { public void operationComplete( {@link 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.

    @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();


        // and then shutdown the thread pools
        if (workerGroup != null) {
            workerGroup.shutdownGracefully();
            workerGroup = null;

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      }




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


      if (!future.isSuccess())
      {
         HornetQServerLogger.LOGGER.nettyChannelGroupError();
         Iterator<Channel> iterator = future.group().iterator();
         while (iterator.hasNext())
         {
            Channel channel = iterator.next();
            if (channel.isActive())
            {

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      {
         return;
      }


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

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      }




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


      if (!future.isSuccess())
      {
         HornetQServerLogger.LOGGER.nettyChannelGroupError();
         Iterator<Channel> iterator = future.group().iterator();
         while (iterator.hasNext())
         {
            Channel channel = iterator.next();
            if (channel.isActive())
            {

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      {
         return;
      }


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

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        return channel;
    }


    @Override
    public void releaseExternalResources() {
        ChannelGroupFuture close = channels.close();
        close.awaitUninterruptibly();
        ExecutorUtil.terminate(executor);
    }

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            if (psCommandHandler != null && !psCommandHandler.isClosed()) {
                psCommandHandler.close();
            }
        }


        ChannelGroupFuture closeFuture = channels.close();
        Future<?> groupCloseFuture = eventLoopGroup.shutdownGracefully(quietPeriod, timeout, timeUnit);
        try {
            closeFuture.get();
            groupCloseFuture.get();
        } catch (Exception e) {
            throw new RedisException(e);
        }

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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();


        // and then shutdown the thread pools
        if (workerGroup != null) {
            workerGroup.shutdownGracefully();
            workerGroup = null;

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        for (Channel c : channels) {
            ChannelPipeline pipeline = c.pipeline();
            RedisAsyncConnection<?, ?> connection = pipeline.get(RedisAsyncConnection.class);
            connection.close();
        }
        ChannelGroupFuture future = channels.close();
        future.awaitUninterruptibly();
    }

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      }




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


      if (!future.isSuccess())
      {
         HornetQServerLogger.LOGGER.nettyChannelGroupError();
         Iterator<Channel> iterator = future.group().iterator();
         while (iterator.hasNext())
         {
            Channel channel = iterator.next();
            if (channel.isActive())
            {

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