Example usage for io.netty.channel ChannelOption TCP_NODELAY

List of usage examples for io.netty.channel ChannelOption TCP_NODELAY

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Introduction

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

Prototype

ChannelOption TCP_NODELAY

To view the source code for io.netty.channel ChannelOption TCP_NODELAY.

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Usage

From source file:MultiThreadClient.java

License:Apache License

public void run() throws Exception {
    try {/*from w ww  . ja va 2  s .  c o m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelDuplexHandler() {
                    @Override
                    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                        System.out.println(
                                index + "-??:" + msg + "Read:" + Thread.currentThread());
                    }

                    @Override
                    public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise)
                            throws Exception {
                        ChannelFuture future = ctx.writeAndFlush(msg, promise);
                        System.out.println(index + "-Write:" + Thread.currentThread());
                        Thread.yield();
                        Thread.yield();
                        future.addListener(new ChannelFutureListener() {
                            @Override
                            public void operationComplete(ChannelFuture channelFuture) throws Exception {
                                System.out.println(index + "-Listener" + "Lintener:"
                                        + Thread.currentThread());
                            }
                        });
                    }
                });

        // Make the connection attempt.
        ChannelFuture f = b.connect(host, port).sync();
        for (int i = 0; i < 10; i++) {
            f.channel().writeAndFlush(Unpooled.wrappedBuffer(new byte[10]));
        }
        // Wait until the connection is closed.

        f.channel().closeFuture();
    } finally {
        //group.shutdownGracefully();
    }
}

From source file:NettyHttpListner.java

License:Apache License

public void start() {

    System.out.println("Starting the server...");
    System.out.println("Starting Inbound Http Listner on Port " + this.port);

    // Configure SSL.
    SslContext sslCtx = null;//from   w w w.j a v  a2s  . c o m
    if (SSL) {
        try {
            SelfSignedCertificate ssc = new SelfSignedCertificate();
            sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
        } catch (CertificateException ex) {
            Logger.getLogger(NettyHttpListner.class.getName()).log(Level.SEVERE, null, ex);
        } catch (SSLException ex) {
            Logger.getLogger(NettyHttpListner.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    commonEventLoopGroup = new NioEventLoopGroup(bossGroupSize);
    //        bossGroup = new NioEventLoopGroup(bossGroupSize);
    //        workerGroup = new NioEventLoopGroup(workerGroupSize);

    try {
        ServerBootstrap b = new ServerBootstrap();

        //            b.commonEventLoopGroup(bossGroup, workerGroup)
        b.group(commonEventLoopGroup).channel(NioServerSocketChannel.class)
                .childHandler(
                        new NettyHttpTransportHandlerInitializer(HOST, HOST_PORT, maxConnectionsQueued, sslCtx))
                .childOption(ChannelOption.AUTO_READ, false);

        b.option(ChannelOption.TCP_NODELAY, true);
        b.childOption(ChannelOption.TCP_NODELAY, true);

        b.option(ChannelOption.SO_BACKLOG, maxConnectionsQueued);

        b.option(ChannelOption.SO_KEEPALIVE, true);
        b.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 15000);

        b.option(ChannelOption.SO_SNDBUF, 1048576);
        b.option(ChannelOption.SO_RCVBUF, 1048576);
        b.childOption(ChannelOption.SO_RCVBUF, 1048576);
        b.childOption(ChannelOption.SO_SNDBUF, 1048576);

        b.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);

        Channel ch = null;
        try {
            ch = b.bind(port).sync().channel();
            ch.closeFuture().sync();
            System.out.println("Inbound Listner Started");
        } catch (InterruptedException e) {
            System.out.println("Exception caught");
        }
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:HttpRouterServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    Router<String> router = new Router<String>().GET(PUBLIC_DIR + ":id", "public").GET("/", "index")
            .GET(PUBLIC_DIR, "index")
            //            .GET("/image", "base64")
            //            .GET("/img", "image")
            //            .GET("/",             "Index page")
            //            .GET("/articles/:id", "Article show page")
            .notFound("404 Not Found");
    System.out.println(router);//from w ww  . j  a va2s  .c om

    NioEventLoopGroup bossGroup = new NioEventLoopGroup(1);
    NioEventLoopGroup workerGroup = new NioEventLoopGroup();

    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).childOption(ChannelOption.TCP_NODELAY, java.lang.Boolean.TRUE)
                .childOption(ChannelOption.SO_KEEPALIVE, java.lang.Boolean.TRUE)
                .channel(NioServerSocketChannel.class).childHandler(new HttpRouterServerInitializer(router));

        Channel ch = b.bind(PORT).sync().channel();
        System.out.println("Server started: http://127.0.0.1:" + PORT + '/');

        ch.closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:NettyHttpTransportSourceHandler.java

License:Apache License

/**
 * activating registered handler to accept events.
 *
 * @param ctx//from www  .  java 2 s .c o m
 * @throws Exception
 */
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {

    final Channel inboundChannel = ctx.channel();

    Bootstrap b = new Bootstrap();
    b.group(inboundChannel.eventLoop()).channel(ctx.channel().getClass());
    b.handler(new NettyTargetHandlerInitilizer(inboundChannel)).option(ChannelOption.AUTO_READ, false);

    b.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
    b.option(ChannelOption.TCP_NODELAY, true);
    b.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 15000);

    b.option(ChannelOption.SO_SNDBUF, 1048576);
    b.option(ChannelOption.SO_RCVBUF, 1048576);

    ChannelFuture f = b.connect(NettyHttpListner.HOST, NettyHttpListner.HOST_PORT);

    outboundChannel = f.channel();
    f.addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture future) throws Exception {
            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:TestTCPServer.java

License:Open Source License

public static void main(String... args) throws Throwable {
    IOService service = new IOService();
    TCPAcceptor acceptor = new TCPAcceptor(service);
    acceptor.setOption(ChannelOption.SO_BACKLOG, 3);
    acceptor.setChildOption(ChannelOption.TCP_NODELAY, true);
    acceptor.setChildOption(ChannelOption.SO_KEEPALIVE, true);

    acceptor.bind(4321);/*w  w w  . java  2s. c o m*/
    TCPSocket con = acceptor.accept();
    ByteBuf buffer = ByteBufAllocator.DEFAULT.buffer(16 * 1000);
    byte[] bytea = new byte[buffer.capacity()];
    long bytes;

    System.out.println("Connected " + con.remoteEndpoint());
    bytes = con.receive(buffer);
    while (bytes != -1 && buffer.getByte(0) != 4) {
        buffer.readBytes(bytea, 0, (int) bytes);
        System.out.print(new String(bytea, 0, (int) bytes));
        buffer.readerIndex(0).writerIndex(0);
        con.send(buffer, (int) bytes);
        buffer.readerIndex(0).writerIndex(0);
        bytes = con.receive(buffer);
    }

    System.out.println("Connection closed");
    con.close();

    acceptor.close();
    service.cancel();
}

From source file:alluxio.client.netty.NettyClient.java

License:Apache License

/**
 * Creates and returns a new Netty client bootstrap for clients to connect to remote servers.
 *
 * @param handler the handler that should be added to new channel pipelines
 * @return the new client {@link Bootstrap}
 */// w  w w .ja va2 s .co  m
public static Bootstrap createClientBootstrap(final ClientHandler handler) {
    final Bootstrap boot = new Bootstrap();

    boot.group(WORKER_GROUP).channel(CLIENT_CHANNEL_CLASS);
    boot.option(ChannelOption.SO_KEEPALIVE, true);
    boot.option(ChannelOption.TCP_NODELAY, true);
    boot.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);

    boot.handler(new ChannelInitializer<SocketChannel>() {
        @Override
        public void initChannel(SocketChannel ch) throws Exception {
            ChannelPipeline pipeline = ch.pipeline();

            pipeline.addLast(RPCMessage.createFrameDecoder());
            pipeline.addLast(ENCODER);
            pipeline.addLast(DECODER);
            pipeline.addLast(handler);
        }
    });

    return boot;
}

From source file:alluxio.network.netty.NettyClient.java

License:Apache License

/**
 * Creates and returns a new Netty client bootstrap for clients to connect to remote servers.
 *
 * @param address the socket address//  w w w.  j  a v  a2  s.co m
 * @return the new client {@link Bootstrap}
 */
public static Bootstrap createClientBootstrap(SocketAddress address) {
    final Bootstrap boot = new Bootstrap();

    boot.group(WORKER_GROUP).channel(
            NettyUtils.getClientChannelClass(NettyUtils.CHANNEL_TYPE, !(address instanceof InetSocketAddress)));
    boot.option(ChannelOption.SO_KEEPALIVE, true);
    boot.option(ChannelOption.TCP_NODELAY, true);
    boot.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
    if (NettyUtils.CHANNEL_TYPE == ChannelType.EPOLL) {
        boot.option(EpollChannelOption.EPOLL_MODE, EpollMode.LEVEL_TRIGGERED);
    }

    // After 10 missed heartbeat attempts and no write activity, the server will close the channel.
    final long timeoutMs = Configuration.getMs(PropertyKey.NETWORK_NETTY_HEARTBEAT_TIMEOUT_MS);
    final long heartbeatPeriodMs = Math.max(timeoutMs / 10, 1);
    boot.handler(new ChannelInitializer<Channel>() {
        @Override
        public void initChannel(Channel ch) throws Exception {
            ChannelPipeline pipeline = ch.pipeline();

            pipeline.addLast(RPCMessage.createFrameDecoder());
            pipeline.addLast(ENCODER);
            pipeline.addLast(DECODER);
            pipeline.addLast(new IdleStateHandler(0, heartbeatPeriodMs, 0, TimeUnit.MILLISECONDS));
            pipeline.addLast(new IdleWriteHandler());
        }
    });

    return boot;
}

From source file:basic.TimeClient.java

License:Apache License

public void connect(int port, String host) throws Exception {
    // ?NIO// w w w  .ja  va  2  s .c  o m
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        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 {
                        ch.pipeline().addLast(new TimeClientHandler());
                    }
                });

        // ??
        ChannelFuture f = b.connect(host, port).sync();
        // 
        f.channel().closeFuture().sync();
    } finally {
        // NIO
        group.shutdownGracefully();
    }
}

From source file:be.yildizgames.module.network.netty.server.ServerNetty.java

License:MIT License

/**
 * Create a new Netty server./* w w  w. ja v a2s . c om*/
 *
 */
//@requires bootstrap != null.
//@requires port > 0 < 65535.
private ServerNetty() {
    super();

    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    this.bootstrap = new ServerBootstrap().group(bossGroup, workerGroup).channel(NioServerSocketChannel.class);
    this.bootstrap.option(ChannelOption.TCP_NODELAY, true);
    this.bootstrap.option(ChannelOption.SO_KEEPALIVE, true);
}

From source file:bftsmart.communication.client.netty.NettyClientServerCommunicationSystemClientSide.java

License:Apache License

/**
 * Tulio Ribeiro Connect to specific replica and returns the ChannelFuture.
 * sessionClientToReplica is replaced with the new connection. Removed redundant
 * code./*from   www  .j  a  v a 2s.c om*/
 */
public synchronized ChannelFuture connectToReplica(int replicaId, SecretKeyFactory fac)
        throws NoSuchAlgorithmException, InvalidKeySpecException, InvalidKeyException {

    String str = this.clientId + ":" + replicaId;
    PBEKeySpec spec = TOMUtil.generateKeySpec(str.toCharArray());
    SecretKey authKey = fac.generateSecret(spec);

    Bootstrap b = new Bootstrap();
    b.group(workerGroup);
    b.channel(NioSocketChannel.class);
    b.option(ChannelOption.SO_KEEPALIVE, true);
    b.option(ChannelOption.TCP_NODELAY, true);
    b.option(ChannelOption.SO_SNDBUF, tcpSendBufferSize);
    b.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, connectionTimeoutMsec);
    b.handler(getChannelInitializer());

    ChannelFuture channelFuture = b.connect(controller.getRemoteAddress(replicaId));

    NettyClientServerSession ncss = new NettyClientServerSession(channelFuture.channel(), replicaId);
    sessionClientToReplica.put(replicaId, ncss);

    return channelFuture;
}