Example usage for io.netty.channel ChannelFuture channel

Introduction

In this page you can find the example usage for io.netty.channel ChannelFuture channel.

Prototype

Channel channel();

Source Link

Document

Returns a channel where the I/O operation associated with this future takes place.

Usage

From source file:com.barchart.http.server.HttpServer.java

License:BSD License

/**
 * Start the server with the configuration settings provided.
 *//*  w w w  .  j av  a  2  s  .  c  o m*/
public ChannelFuture listen() {

    if (config == null) {
        throw new IllegalStateException("Server has not been configured");
    }

    if (serverChannel != null) {
        throw new IllegalStateException("Server is already running.");
    }

    final ChannelFuture future = new ServerBootstrap() //
            .group(config.parentGroup(), config.childGroup()) //
            .channel(NioServerSocketChannel.class) //
            .localAddress(config.address()) //
            .childHandler(new HttpServerChannelInitializer()) //
            .option(ChannelOption.SO_REUSEADDR, true) //
            .option(ChannelOption.SO_SNDBUF, 262144) //
            .option(ChannelOption.SO_RCVBUF, 262144) //
            .bind();

    serverChannel = future.channel();

    return future;

}

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From source file:com.barchart.netty.client.base.ConnectableBase.java

License:BSD License

@Override
public Observable<T> connect() {

    if (transport == null) {
        throw new IllegalArgumentException("Transport cannot be null");
    }//from  w ww  . ja v  a 2  s .  co m

    if (channelInitializer == null) {
        throw new IllegalArgumentException("Channel initializer cannot be null");
    }

    log.debug("Client connecting to " + transport.address().toString());
    changeState(Connectable.State.CONNECTING);

    final ChannelFuture future = bootstrap() //
            .group(group) //
            .handler(new ClientPipelineInitializer()) //
            .connect();

    channel = future.channel();

    final ReplaySubject<T> connectObs = ReplaySubject.create();

    future.addListener(new ChannelFutureListener() {

        @SuppressWarnings("unchecked")
        @Override
        public void operationComplete(final ChannelFuture future) throws Exception {

            if (!future.isSuccess()) {
                changeState(Connectable.State.CONNECT_FAIL);
                connectObs.onError(future.cause());
            } else {
                connectObs.onNext((T) ConnectableBase.this);
                connectObs.onCompleted();
            }

        }

    });

    return connectObs;

}

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From source file:com.barchart.netty.server.base.AbstractServer.java

License:BSD License

@Override
public ChannelFuture listen(final SocketAddress address) {

    shutdownFuture = new DefaultPromise<T>(GlobalEventExecutor.INSTANCE);

    final ChannelFuture future = bootstrap().bind(address);

    serverChannels.add(future.channel());

    return future;

}

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From source file:com.barchart.netty.server.stream.MulticastTransceiver.java

License:BSD License

/**
 * Join the multicast group address using the network interface associated
 * with the given address.//from   www .ja v a2 s  . com
 */
@Override
public ChannelFuture listen(final SocketAddress address) {

    if (pipelineInit == null) {
        throw new IllegalStateException("No pipeline initializer has been provided, server would do nothing");
    }

    // Kinda hacky, need to override bootstrap params based on passed
    // address

    final ChannelFuture future = bootstrap() //
            .option(ChannelOption.IP_MULTICAST_IF, bindInterface((InetSocketAddress) address)) //
            .localAddress(multicast.getPort()) //
            .remoteAddress(multicast) //
            .bind();

    future.addListener(new GenericFutureListener<ChannelFuture>() {

        @Override
        public void operationComplete(final ChannelFuture future) throws Exception {

            if (future.isSuccess()) {

                final NioDatagramChannel channel = (NioDatagramChannel) future.channel();

                channel.joinGroup(multicast, channel.config().getOption(ChannelOption.IP_MULTICAST_IF));

            }

        }

    });

    serverChannels.add(future.channel());

    return future;

}

---

From source file:com.base.research.socket.netty.Client.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//from w w  w.  j  a v  a  2 s.  co m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws Exception {
                // ch.pipeline().addLast(new TimeDecode());
                ch.pipeline().addLast(new TestDecode2());
                // ch.pipeline().addLast(new TestEncode());
                ch.pipeline().addLast(new TestEncode2());
                ch.pipeline().addLast(new ClientHandler());
            }
        });

        // Make the connection attempt.
        ChannelFuture f = b.connect(host, port).sync();

        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }
}

---

From source file:com.base.research.socket.netty.Server.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from w w  w. j  a va 2s  . co m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        // ch.pipeline().addLast(new TimeDecode());
                        ch.pipeline().addLast(new TestDecode2());
                        // ch.pipeline().addLast(new TestEncode());
                        ch.pipeline().addLast(new TestEncode2());
                        ch.pipeline().addLast(new ServerHandler());
                    }
                });

        // Bind and start to accept incoming connections.
        ChannelFuture f = b.bind(port).sync();

        // Wait until the server socket is closed.
        // In this example, this does not happen, but you can do that to
        // gracefully
        // shut down your server.
        f.channel().closeFuture().sync();
    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }
}

---

From source file:com.basho.riak.client.core.ConnectionPool.java

License:Apache License

@Override
public void operationComplete(ChannelFuture future) throws Exception {
    // Because we aren't storing raw channels in available we just throw
    // these in the recentlyClosed as an indicator. We'll leave it up
    // to the healthcheck task to purge the available queue of dead
    // connections and make decisions on what to do 
    recentlyClosed.add(new ChannelWithIdleTime(future.channel()));
    logger.debug("Channel closed; {}:{} {}", remoteAddress, port, protocol);
}

---

From source file:com.basho.riak.client.core.ConnectionPool.java

License:Apache License

private Channel doGetConnection() throws ConnectionFailedException {
    ChannelWithIdleTime cwi;// w w  w. jav  a  2s  .  c o m
    while ((cwi = available.poll()) != null) {
        Channel channel = cwi.getChannel();
        // If the channel from available is closed, try again. This will result in
        // the caller always getting a connection or an exception. If closed
        // the channel is simply discarded so this also acts as a purge
        // for dead channels during a health check.
        if (channel.isOpen()) {
            return channel;
        }
    }

    ChannelFuture f = bootstrap.connect();
    // Any channels that don't connect will trigger a close operation as well
    f.channel().closeFuture().addListener(this);

    try {
        f.await();
    } catch (InterruptedException ex) {
        logger.info("Thread interrupted waiting for new connection to be made; {}", remoteAddress);
        Thread.currentThread().interrupt();
        throw new ConnectionFailedException(ex);
    }

    if (!f.isSuccess()) {
        logger.error("Connection attempt failed: {}:{}; {}", remoteAddress, port, f.cause());
        throw new ConnectionFailedException(f.cause());
    }

    return f.channel();

}

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From source file:com.basho.riak.client.core.RiakNode.java

License:Apache License

private Channel doGetConnection() throws ConnectionFailedException {
    ChannelWithIdleTime cwi;// w  w  w .java 2s.c  o m
    while ((cwi = available.poll()) != null) {
        Channel channel = cwi.getChannel();
        // If the channel from available is closed, try again. This will result in
        // the caller always getting a connection or an exception. If closed
        // the channel is simply discarded so this also acts as a purge
        // for dead channels during a health check.
        if (channel.isOpen()) {
            return channel;
        }
    }

    ChannelFuture f = bootstrap.connect();

    try {
        f.await();
    } catch (InterruptedException ex) {
        logger.error("Thread interrupted waiting for new connection to be made; {}", remoteAddress);
        Thread.currentThread().interrupt();
        throw new ConnectionFailedException(ex);
    }

    if (!f.isSuccess()) {
        logger.error("Connection attempt failed: {}:{}; {}", remoteAddress, port, f.cause());
        consecutiveFailedConnectionAttempts.incrementAndGet();
        throw new ConnectionFailedException(f.cause());
    }

    consecutiveFailedConnectionAttempts.set(0);
    Channel c = f.channel();

    if (trustStore != null) {
        SSLContext context;
        try {
            context = SSLContext.getInstance("TLS");
            TrustManagerFactory tmf = TrustManagerFactory
                    .getInstance(TrustManagerFactory.getDefaultAlgorithm());
            tmf.init(trustStore);

            context.init(null, tmf.getTrustManagers(), null);

        } catch (Exception ex) {
            c.close();
            logger.error("Failure configuring SSL; {}:{} {}", remoteAddress, port, ex);
            throw new ConnectionFailedException(ex);
        }

        SSLEngine engine = context.createSSLEngine();

        Set<String> protocols = new HashSet<String>(Arrays.asList(engine.getSupportedProtocols()));

        if (protocols.contains("TLSv1.2")) {
            engine.setEnabledProtocols(new String[] { "TLSv1.2" });
            logger.debug("Using TLSv1.2");
        } else if (protocols.contains("TLSv1.1")) {
            engine.setEnabledProtocols(new String[] { "TLSv1.1" });
            logger.debug("Using TLSv1.1");
        }

        engine.setUseClientMode(true);
        RiakSecurityDecoder decoder = new RiakSecurityDecoder(engine, username, password);
        c.pipeline().addFirst(decoder);

        try {
            DefaultPromise<Void> promise = decoder.getPromise();
            promise.await();

            if (promise.isSuccess()) {
                logger.debug("Auth succeeded; {}:{}", remoteAddress, port);
            } else {
                c.close();
                logger.error("Failure during Auth; {}:{} {}", remoteAddress, port, promise.cause());
                throw new ConnectionFailedException(promise.cause());
            }

        } catch (InterruptedException e) {
            c.close();
            logger.error("Thread interrupted during Auth; {}:{}", remoteAddress, port);
            Thread.currentThread().interrupt();
            throw new ConnectionFailedException(e);
        }

    }

    return c;

}

---

From source file:com.beeswax.http.server.HttpServer.java

License:Apache License

public void run() throws InterruptedException {
    // Create event loop groups. One for incoming connections handling and
    // second for handling actual event by workers
    final NioEventLoopGroup bossGroup = new NioEventLoopGroup(serverConfig.bossGroupSize);
    final NioEventLoopGroup workerGroup = new NioEventLoopGroup();

    try {/*from   ww  w  .  j  ava 2 s .  co m*/
        ServerBootstrap bootStrap = new ServerBootstrap();
        bootStrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                // SO_BACKLOG : The maximum queue length for incoming connections.
                .option(ChannelOption.SO_BACKLOG, serverConfig.backlogSize)
                // TCP_NODELAY: option to disable Nagle's algorithm to achieve lower latency on every packet sent
                .option(ChannelOption.TCP_NODELAY, serverConfig.tcpNodelay)
                // SO_KEEPALIVE: option to enable keep-alive packets for a socket connection
                .childOption(ChannelOption.SO_KEEPALIVE, serverConfig.keepAlive)
                .childHandler(new HttpServerChannelInitializer(serverConfig, handlerFactory));

        // bind to port
        final ChannelFuture channelFuture = bootStrap.bind(serverConfig.port).sync();

        // Wait until the server socket is closed.
        channelFuture.channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

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