Examples of NioDatagramChannelFactory

io.netty.channel.socket.nio.NioDatagramChannelFactory
A {@link DatagramChannelFactory} that creates a NIO-based connectionless{@link DatagramChannel}. It utilizes the non-blocking I/O mode which was introduced with NIO to serve many number of concurrent connections efficiently.
How threads work

There is only one thread type in a {@link NioDatagramChannelFactory}; worker threads.
Worker threads

One {@link NioDatagramChannelFactory} can have one or more workerthreads. A worker thread performs non-blocking read and write for one or more {@link DatagramChannel}s in a non-blocking mode.
Life cycle of threads and graceful shutdown

All worker threads are acquired from the {@link Executor} which was specifiedwhen a {@link NioDatagramChannelFactory} was created. Therefore, you shouldmake sure the specified {@link Executor} is able to lend the sufficientnumber of threads. It is the best bet to specify {@linkplain Executors#newCachedThreadPool() a cached thread pool}.
All worker threads are acquired lazily, and then released when there's nothing left to process. All the related resources such as {@link Selector}are also released when the worker threads are released. Therefore, to shut down a service gracefully, you should do the following:
1. close all channels created by the factory usually using {@link ChannelGroup#close()}, and
2. call {@link #releaseExternalResources()}.
Please make sure not to shut down the executor until all channels are closed. Otherwise, you will end up with a {@link RejectedExecutionException}and the related resources might not be released properly.
Limitation

Multicast is not supported. Please use {@link OioDatagramChannelFactory}instead. @apiviz.landmark
org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory
A {@link DatagramChannelFactory} that creates a NIO-based connectionless{@link DatagramChannel}. It utilizes the non-blocking I/O mode which was introduced with NIO to serve many number of concurrent connections efficiently.
How threads work

There is only one thread type in a {@link NioDatagramChannelFactory}; worker threads.
Worker threads

One {@link NioDatagramChannelFactory} can have one or more workerthreads. A worker thread performs non-blocking read and write for one or more {@link DatagramChannel}s in a non-blocking mode.
Life cycle of threads and graceful shutdown

All worker threads are acquired from the {@link Executor} which was specifiedwhen a {@link NioDatagramChannelFactory} was created. Therefore, you shouldmake sure the specified {@link Executor} is able to lend the sufficientnumber of threads. It is the best bet to specify {@linkplain Executors#newCachedThreadPool() a cached thread pool}.
All worker threads are acquired lazily, and then released when there's nothing left to process. All the related resources such as {@link Selector}are also released when the worker threads are released. Therefore, to shut down a service gracefully, you should do the following:
1. close all channels created by the factory usually using {@link ChannelGroup#close()}, and
2. call {@link #releaseExternalResources()}.
Please make sure not to shut down the executor until all channels are closed. Otherwise, you will end up with a {@link RejectedExecutionException}and the related resources might not be released properly.
Limitation

Multicast is not supported. Please use {@link OioDatagramChannelFactory}instead. @author The Netty Project (netty-dev@lists.jboss.org) @author Trustin Lee (tlee@redhat.com) @author Daniel Bevenius (dbevenius@jboss.com) @version $Rev: 1580 $, $Date: 2009-07-17 21:49:32 +0900 (Fri, 17 Jul 2009) $ @apiviz.landmark

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory


    protected void setupUDPCommunication() throws Exception {
        if (datagramChannelFactory == null) {
            int count = configuration.getWorkerCount() > 0 ? configuration.getWorkerCount() : NettyHelper.DEFAULT_IO_THREADS;
            workerPool = new NioDatagramWorkerPool(Executors.newCachedThreadPool(), count);
            datagramChannelFactory = new NioDatagramChannelFactory(workerPool);
        }
    }

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory


    protected void setupUDPCommunication() throws Exception {
        if (datagramChannelFactory == null) {
            workerExecutor = context.getExecutorServiceManager().newCachedThreadPool(this, "NettyUDPWorker");
            if (configuration.getWorkerCount() <= 0) {
                datagramChannelFactory = new NioDatagramChannelFactory(workerExecutor);
            } else {
                datagramChannelFactory = new NioDatagramChannelFactory(workerExecutor, configuration.getWorkerCount());
            }
        }
    }

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

    }


    protected void setupUDPCommunication() throws Exception {
        if (datagramChannelFactory == null) {
            workerExecutor = context.getExecutorServiceManager().newCachedThreadPool(this, "NettyUDPWorker");
            datagramChannelFactory = new NioDatagramChannelFactory(workerExecutor);
        }
    }

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory


    protected void setupUDPCommunication() throws Exception {
        if (datagramChannelFactory == null) {
            int count = configuration.getWorkerCount() > 0 ? configuration.getWorkerCount() : NettyHelper.DEFAULT_IO_THREADS;
            workerPool = new NioDatagramWorkerPool(Executors.newCachedThreadPool(), count);
            datagramChannelFactory = new NioDatagramChannelFactory(workerPool);
        }
    }

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

    }


    @Override
    public Bootstrap getBootstrap() {
        final ConnectionlessBootstrap bootstrap =
                new ConnectionlessBootstrap(new NioDatagramChannelFactory(workerExecutor));


        bootstrap.setOption("receiveBufferSizePredictorFactory", new FixedReceiveBufferSizePredictorFactory(8192));
        bootstrap.setOption("receiveBufferSize", getRecvBufferSize());


        return bootstrap;

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory


    private void initializeUDPServerSocketCommunicationLayer() throws Exception {
        ExecutorService workerExecutor = context.getExecutorServiceStrategy().newThreadPool(this, "NettyUDPWorker",
                configuration.getCorePoolSize(), configuration.getMaxPoolSize());


        datagramChannelFactory = new NioDatagramChannelFactory(workerExecutor);
        connectionlessServerBootstrap = new ConnectionlessBootstrap(datagramChannelFactory);
        connectionlessServerBootstrap.setPipelineFactory(new ServerPipelineFactory(this));
        connectionlessServerBootstrap.setOption("child.keepAlive", configuration.isKeepAlive());
        connectionlessServerBootstrap.setOption("child.tcpNoDelay", configuration.isTcpNoDelay());
        connectionlessServerBootstrap.setOption("child.reuseAddress", configuration.isReuseAddress());

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory


    protected void setupUDPCommunication() throws Exception {
        if (datagramChannelFactory == null) {
            ExecutorService workerExecutor = context.getExecutorServiceStrategy().newThreadPool(this, "NettyUDPWorker",
                    configuration.getCorePoolSize(), configuration.getMaxPoolSize());
            datagramChannelFactory = new NioDatagramChannelFactory(workerExecutor);
        }
    }

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

  {
    this.worker = worker;
    this.serverAddress = serverAddress;
    if (channelFactory == null)
    {
      this.channelFactory = new NioDatagramChannelFactory(worker);
    }
    else
    {
      this.channelFactory = channelFactory;
    }

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

  {
    this.worker = worker;
    this.serverAddress = serverAddress;
    if (channelFactory == null)
    {
      this.channelFactory = new NioDatagramChannelFactory(worker);
    }
    else
    {
      this.channelFactory = channelFactory;
    }

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Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory


    protected void setupUDPCommunication() throws Exception {
        if (datagramChannelFactory == null) {
            ExecutorService workerExecutor = context.getExecutorServiceStrategy().newThreadPool(this, "NettyUDPWorker",
                    configuration.getCorePoolSize(), configuration.getMaxPoolSize());
            datagramChannelFactory = new NioDatagramChannelFactory(workerExecutor);
        }
    }

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Examples of NioDatagramChannelFactory

How threads work

Worker threads

Life cycle of threads and graceful shutdown

Limitation

How threads work

Worker threads

Life cycle of threads and graceful shutdown

Limitation

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory

Examples of org.jboss.netty.channel.socket.nio.NioDatagramChannelFactory