Example usage for io.netty.channel ChannelFuture channel

List of usage examples for io.netty.channel ChannelFuture channel

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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.example.discard.DiscardServerMain.java

License:Apache License

public void run() throws Exception {
    final NioEventLoopGroup bossGroup = new NioEventLoopGroup();//1
    final NioEventLoopGroup workerGroup = new NioEventLoopGroup();
    try (AutoCloseable ignore = new ShutDownGracefully(bossGroup, workerGroup)) {
        final ServerBootstrap bootstrap = new ServerBootstrap();//2
        bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)//3
                .childHandler(new ChannelInitializer<SocketChannel>() {//4
                    @Override/*from  w w w  .ja va 2  s . c  o m*/
                    protected void initChannel(final SocketChannel ch) {
                        ch.pipeline().addLast(new DiscardServerHandler());
                    }
                }).option(ChannelOption.SO_BACKLOG, 128)//5
                .childOption(ChannelOption.SO_KEEPALIVE, true); //6
        final ChannelFuture channelFuture = bootstrap.bind(port).sync();//7
        channelFuture.channel().closeFuture().sync();
    }
}

From source file:com.example.pojo.server.ServerTimeServerHandler.java

License:Apache License

@Override
public void channelActive(final ChannelHandlerContext ctx) {
    final ServerTime serverTime = new ServerTime(offset);
    log.info("channel active: {}", serverTime);
    final ChannelFuture channelFuture = ctx.writeAndFlush(serverTime);
    channelFuture.addListener((ChannelFuture future) -> {
        log.info("close channel.");
        future.channel().closeFuture();
    });/*ww  w .  ja v  a 2  s  .co  m*/
}

From source file:com.example.server.ServerMain.java

License:Apache License

public void run() throws InterruptedException {
    final NioEventLoopGroup parentGroup = new NioEventLoopGroup();
    final NioEventLoopGroup workerGroup = new NioEventLoopGroup();

    try (final GracefulShutdown ignored = GracefulShutdown.gracefulShutdown(parentGroup::shutdownGracefully,
            workerGroup::shutdownGracefully)) {
        final ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(parentGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(ServerChannelInitializationConfigurer.channelInitializer())
                .option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);
        log.info("server start");
        final ChannelFuture channelFuture = bootstrap.bind(port).sync();
        channelFuture.channel().closeFuture().sync();
    }/*w  ww. j ava 2 s . co  m*/
}

From source file:com.example.spring.boot.netty.TcpServer.java

License:Apache License

public void bind() {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//www  .  j a  v  a 2s.  co  m
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 65535).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        //p.addLast(new LoggingHandler(LogLevel.INFO));
                        p.addLast(new LineBasedFrameDecoder(1024));
                        p.addLast(new StringDecoder());
                        p.addLast(TCP_SERVER_HANDLER);
                    }
                });

        // Start the server.
        ChannelFuture f = b.bind(port).sync();

        // Wait until the server socket is closed.
        f.channel().closeFuture().sync();
    } catch (Throwable e) {
        e.printStackTrace();
    } finally {
        // Shut down all event loops to terminate all threads.
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:com.farsunset.cim.sdk.android.CIMConnectorManager.java

License:Apache License

public void connect(final String host, final int port) {

    if (!isNetworkConnected(context)) {

        Intent intent = new Intent();
        intent.setAction(CIMConstant.IntentAction.ACTION_CONNECTION_FAILED);
        intent.putExtra(Exception.class.getName(), NetworkDisabledException.class.getSimpleName());
        context.sendBroadcast(intent);/* w w  w . j  a v a 2s .  co  m*/

        return;
    }

    if (isConnected() || !semaphore.tryAcquire()) {
        return;
    }

    executor.execute(new Runnable() {
        @Override
        public void run() {

            final InetSocketAddress remoteAddress = new InetSocketAddress(host, port);
            bootstrap.connect(remoteAddress).addListener(new GenericFutureListener<ChannelFuture>() {

                @Override
                public void operationComplete(ChannelFuture future) {
                    semaphore.release();
                    future.removeListener(this);
                    if (!future.isSuccess() && future.cause() != null) {
                        handleConnectFailure(future.cause(), remoteAddress);
                    }

                    if (future.isSuccess()) {
                        channel = future.channel();
                    }

                }
            });
        }
    });

}

From source file:com.farsunset.cim.sdk.client.CIMConnectorManager.java

License:Apache License

public void connect(final String host, final int port) {

    if (isConnected() || !semaphore.tryAcquire()) {
        return;//from ww  w  . j a  va  2 s.  c  o m
    }

    executor.execute(new Runnable() {
        @Override
        public void run() {

            logger.info("****************CIM?  " + host + ":" + port + "......");
            final InetSocketAddress remoteAddress = new InetSocketAddress(host, port);
            bootstrap.connect(remoteAddress).addListener(new GenericFutureListener<ChannelFuture>() {

                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    semaphore.release();
                    future.removeListener(this);
                    if (!future.isSuccess() && future.cause() != null) {
                        handleConnectFailure(future.cause(), remoteAddress);
                    }

                    if (future.isSuccess()) {
                        channel = future.channel();
                    }
                }
            });
        }
    });

}

From source file:com.feihong.newzxclient.tcp.NettyClient.java

License:Apache License

@SuppressWarnings("unchecked")
public void connect() throws Exception {
    mGroup = new NioEventLoopGroup();
    Bootstrap b = new Bootstrap();
    b.group(mGroup).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
            .handler(new ChannelInitializer<SocketChannel>() {
                @Override/*from  w  w  w  . j  a v a  2  s .  c om*/
                public void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast("decoder", new IntLengthDecoder());
                    ch.pipeline().addLast(new NettyClientHandler());
                }
            });

    ChannelFuture future = b.connect(host, port).sync();
    future.addListeners(new ChannelFutureListener() {
        public void operationComplete(final ChannelFuture future) throws Exception {
            requestLogin();
        }
    });

    mChannel = future.channel();

    mHandler = mChannel.pipeline().get(NettyClientHandler.class);

}

From source file:com.fjn.helper.frameworkex.netty.v4.discardserver.DiscardServer.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup(); // (1)
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/* w w  w. j  a v  a 2  s .c om*/
        ServerBootstrap b = new ServerBootstrap(); // (2)
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class) // (3)
                .childHandler(new ChannelInitializer<SocketChannel>() { // (4)
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new DiscardServerHandler());
                    }
                }).option(ChannelOption.SO_BACKLOG, 128) // (5)
                .childOption(ChannelOption.SO_KEEPALIVE, true); // (6)

        // Bind and start to accept incoming connections.
        ChannelFuture f = b.bind(port).sync(); // (7)

        // 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.fjn.helper.frameworkex.netty.v4.echotest.EchoClient.java

License:Apache License

public void start() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from  ww  w  . j  a  v a2  s  .c om*/
        Bootstrap b = new Bootstrap();
        b.group(group);
        b.channel(NioSocketChannel.class);
        b.remoteAddress(new InetSocketAddress(host, port));
        b.handler(new ChannelInitializer<SocketChannel>() {
            @Override
            protected void initChannel(SocketChannel ch) throws Exception {
                ch.pipeline().addLast(new EchoClientHandler());
            }
        });
        ChannelFuture f = (ChannelFuture) b.connect().sync();
        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully().sync();
    }
}

From source file:com.fjn.helper.frameworkex.netty.v4.echotest.EchoServer.java

License:Apache License

public void start() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*  www  .  jav  a 2s  . c om*/
        // Bootstraps the server
        ServerBootstrap b = new ServerBootstrap();

        // Specifies NIO transport, local socket address
        b.group(group);
        b.childGroup();
        b.channel(NioServerSocketChannel.class);
        b.localAddress(new InetSocketAddress(port));

        // Adds handler to channel pipeline
        b.childHandler(new ChannelInitializer<SocketChannel>() {
            @Override
            protected void initChannel(SocketChannel ch) throws Exception {
                ch.pipeline().addLast(new EchoServerHandler());
            }
        });

        // Binds server, waits for server to close, and releases resources
        ChannelFuture f = b.bind().sync();
        System.out.println(EchoServer.class.getName() + " started and listen on " + f.channel().localAddress());
        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully().sync();
    }

}