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.sangupta.swift.netty.proxy.ProxyFrontendHandler.java

License:Apache License

@Override
public void channelActive(ChannelHandlerContext channelHandlerContext) {
    final Channel inboundChannel = channelHandlerContext.channel();

    // Start the connection attempt.
    Bootstrap bootstrap = new Bootstrap();

    bootstrap.group(inboundChannel.eventLoop()).channel(channelHandlerContext.channel().getClass())
            .handler(new ProxyBackendHandler(inboundChannel)).option(ChannelOption.AUTO_READ, false);

    ChannelFuture channelFuture = bootstrap.connect(remoteHost, remotePort);
    outboundChannel = channelFuture.channel();

    channelFuture.addListener(new ChannelFutureListener() {
        @Override//from ww w. j av  a2  s.co m
        public void operationComplete(ChannelFuture future) {
            if (future.isSuccess()) {
                // connection complete start to read first data
                inboundChannel.read();
            } else {
                // Close the connection if the connection attempt has failed.
                inboundChannel.close();
            }
        }
    });
}

From source file:com.sangupta.swift.netty.proxy.ProxyFrontendHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext channelHandlerContext, Object message) {
    if (outboundChannel.isActive()) {
        outboundChannel.writeAndFlush(message).addListener(new ChannelFutureListener() {
            @Override/*  www . jav a 2 s.  co m*/
            public void operationComplete(ChannelFuture future) {
                if (future.isSuccess()) {
                    // was able to flush out data, start to read the next chunk
                    channelHandlerContext.channel().read();
                } else {
                    future.channel().close();
                }
            }
        });
    }
}

From source file:com.seed.nettyechoserver.EchoServer.java

public static void main(String[] args) throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup(1);
    try {//from w w w  .  j  av a 2s . c  om
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100).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 EchoServerHandler());
                    }
                });

        ChannelFuture f = b.bind(PORT).sync();
        f.channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:com.sheldon.javaPrj.netty.DiscardServer.java

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from w w  w. j  ava2  s .  c  o m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new DiscardServerHandler());
                    }

                }).option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);

        ChannelFuture f = b.bind(port).sync();

        f.channel().closeFuture().sync();

    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }
}

From source file:com.sheldon.javaPrj.netty.FileClient.java

public void start() {
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from  w  w  w . j  a v a2 s .  c  o  m*/
        Bootstrap b = new Bootstrap();
        b.group(workerGroup).channel(NioSocketChannel.class).option(ChannelOption.SO_KEEPALIVE, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new ChunkedWriteHandler(), new FileClientHandler());
                    }

                });

        ChannelFuture f = b.connect("localhost", port).sync();

        f.channel().closeFuture().sync();

    } catch (InterruptedException ex) {
        Logger.getLogger(FileClient.class.getName()).log(Level.SEVERE, null, ex);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        workerGroup.shutdownGracefully();
    }

}

From source file:com.sheldon.javaPrj.netty.FileServer.java

public void start() {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//from w  w  w.  jav a  2  s.com
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true)
                .childHandler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new FileServerHandler());
                    }

                });

        ChannelFuture f = b.bind(port).sync();

        System.out.println("server start");

        f.channel().closeFuture().sync();

        System.out.println("server down");

    } catch (InterruptedException ex) {
        Logger.getLogger(FileServer.class.getName()).log(Level.SEVERE, null, ex);
    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }

}

From source file:com.sheldon.javaPrj.netty.TimeClient.java

public static void main(String args[]) throws InterruptedException {
    String host = args.length > 0 ? args[0] : "localhost";
    int port = Integer.parseInt(args.length > 1 ? args[1] : "8080");

    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {/*from w w w .ja v a2s.co m*/
        Bootstrap b = new Bootstrap();
        b.group(workerGroup);
        b.channel(NioSocketChannel.class);
        b.option(ChannelOption.SO_KEEPALIVE, true);
        b.handler(new ChannelInitializer<SocketChannel>() {
            @Override
            protected void initChannel(SocketChannel ch) throws Exception {
                ch.pipeline().addLast(new TimeClientHandler());
            }
        });

        ChannelFuture f = b.connect(host, port).sync();

        f.channel().closeFuture().sync();
    } finally {
        workerGroup.shutdownGracefully();
    }
}

From source file:com.sheldon.javaPrj.netty.TimeServer.java

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/* w  w  w.  ja  v a2 s  . c  o  m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new TimeServerHandler());
                    }

                }).option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);

        ChannelFuture f = b.bind(port).sync();

        f.channel().closeFuture().sync();

    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }
}

From source file:com.sitech.crmpd.idmm2.ble.EchoClient.java

License:Apache License

public static void consumer(String[] args) throws Exception {
    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from  w  w w .  j  av  a 2 s  .  c o m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new LoggingHandler(LogLevel.TRACE));
                        p.addLast(new FrameCodeC());
                        p.addLast(new ConsumerClientHandler(clientid, target_topic));
                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(ble_ip, ble_port).sync();

        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}

From source file:com.sitech.crmpd.idmm2.ble.EchoClient.java

License:Apache License

public static void producer(String[] args) throws Exception {
    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {// w w  w  .  ja va  2s .  c  o  m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new LoggingHandler(LogLevel.TRACE));
                        p.addLast(new FrameCodeC());
                        p.addLast(new ProducerClientHandler(clientid, target_topic));
                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(ble_ip, ble_port).sync();

        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}