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.github.wangshuwei5.server.NettyServer.java

License:Apache License

public void bind() throws Exception {
    // ??NIO/* ww w. jav a  2 s. c  om*/
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new NettyServerInitializer(SSLMODE.CSA.toString()));

        // ???
        ChannelFuture f = b.bind(NettyConstant.REMOTEIP, NettyConstant.PORT).sync();

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

        System.out.println("Netty server start ok : " + (NettyConstant.REMOTEIP + " : " + NettyConstant.PORT));
    } finally {
        // ?
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:com.github.wolf480pl.ircd.IRCd.java

License:Open Source License

public static void main(String[] args) throws InterruptedException {
    Logger logger = LoggerFactory.getLogger(IRCd.class);
    logger.info("Starting IRCd");
    ChannelFuture f = new NettyServer(new InetSocketAddress(6667), new IRCSessionHandler()).start();
    f.sync(); // Wait for it to bind
    logger.info("IRCd started");

    f.channel().closeFuture().sync(); // Wait for it to close
}

From source file:com.github.wolf480pl.ircd.netty.NettyServer.java

License:Open Source License

public ChannelFuture start() {
    if (!started.compareAndSet(false, true)) {
        return null;
    }/*from ww w. j  av  a 2s .  c  om*/

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

    IRCChannelInitializer initializer = new IRCChannelInitializer(handler);

    bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).childHandler(initializer)
            .childOption(ChannelOption.TCP_NODELAY, true).childOption(ChannelOption.SO_KEEPALIVE, true);

    ChannelFuture future = bootstrap.bind(bindAddress);
    this.channel = future.channel();
    return future;
}

From source file:com.googlecode.protobuf.pro.duplex.client.DuplexTcpClientPipelineFactory.java

License:Apache License

/**
 * Creates a new client with the provided channel attributes to the remoteAddress.
 * @param remoteAddress/*from   www.  j  av a  2 s  .  c om*/
 * @param bootstrap
 * @param attributes
 * @return
 * @throws IOException
 */
public RpcClient peerWith(InetSocketAddress remoteAddress, Bootstrap bootstrap, Map<String, Object> attributes)
        throws IOException {
    if (remoteAddress == null) {
        throw new NullPointerException("remotedAddress");
    }
    InetSocketAddress localAddress = null;
    if (clientInfo.getHostName() != null) {
        localAddress = new InetSocketAddress(clientInfo.getHostName(), clientInfo.getPort());
    }
    ChannelFuture connectFuture = bootstrap.connect(remoteAddress, localAddress).awaitUninterruptibly();

    if (!connectFuture.isSuccess()) {
        throw new IOException("Failed to connect to " + remoteAddress, connectFuture.cause());
    }

    Channel channel = connectFuture.channel();
    InetSocketAddress connectedAddress = (InetSocketAddress) channel.localAddress();

    PeerInfo effectiveClientInfo = new PeerInfo(
            clientInfo.getHostName() == null ? connectedAddress.getHostName() : clientInfo.getHostName(),
            connectedAddress.getPort(), clientInfo.getPid());

    ConnectRequest connectRequest = ConnectRequest.newBuilder()
            .setClientHostName(effectiveClientInfo.getHostName()).setClientPort(effectiveClientInfo.getPort())
            .setClientPID(effectiveClientInfo.getPid()).setCorrelationId(correlationId.incrementAndGet())
            .setCompress(isCompression()).build();

    WirePayload payload = WirePayload.newBuilder().setConnectRequest(connectRequest).build();
    if (log.isDebugEnabled()) {
        log.debug("Sending [" + connectRequest.getCorrelationId() + "]ConnectRequest.");
    }
    channel.writeAndFlush(payload);

    ClientConnectResponseHandler connectResponseHandler = (ClientConnectResponseHandler) channel.pipeline()
            .get(Handler.CLIENT_CONNECT);
    if (connectResponseHandler == null) {
        throw new IllegalStateException("No connectReponse handler in channel pipeline.");
    }

    ConnectResponse connectResponse = connectResponseHandler.getConnectResponse(connectResponseTimeoutMillis);
    if (connectResponse == null) {
        connectFuture.channel().close().awaitUninterruptibly();
        throw new IOException(
                "No Channel response received before " + connectResponseTimeoutMillis + " millis timeout.");
    }
    if (connectResponse.hasErrorCode()) {
        connectFuture.channel().close().awaitUninterruptibly();
        throw new IOException(
                "DuplexTcpServer CONNECT_RESPONSE indicated error " + connectResponse.getErrorCode());
    }
    if (!connectResponse.hasCorrelationId()) {
        connectFuture.channel().close().awaitUninterruptibly();
        throw new IOException("DuplexTcpServer CONNECT_RESPONSE missing correlationId.");
    }
    if (connectResponse.getCorrelationId() != connectRequest.getCorrelationId()) {
        connectFuture.channel().close().awaitUninterruptibly();
        throw new IOException("DuplexTcpServer CONNECT_RESPONSE correlationId mismatch. TcpClient sent "
                + connectRequest.getCorrelationId() + " received " + connectResponse.getCorrelationId()
                + " from TcpServer.");
    }
    PeerInfo serverInfo = null;
    if (connectResponse.hasServerPID()) {
        serverInfo = new PeerInfo(remoteAddress.getHostName(), remoteAddress.getPort(),
                connectResponse.getServerPID());
    } else {
        serverInfo = new PeerInfo(remoteAddress.getHostName(), remoteAddress.getPort());
    }

    RpcClient rpcClient = new RpcClient(channel, effectiveClientInfo, serverInfo, connectResponse.getCompress(),
            getRpcLogger(), getExtensionRegistry());
    if (attributes != null) {
        // transfer the input attributes to the channel before we state it's opened.
        for (Entry<String, Object> attr : attributes.entrySet()) {
            rpcClient.setAttribute(attr.getKey(), attr.getValue());
        }
    }
    RpcClientHandler rpcClientHandler = completePipeline(rpcClient);
    rpcClientHandler.notifyOpened();

    // register the rpcClient in the RpcClientRegistry
    if (!getRpcClientRegistry().registerRpcClient(rpcClient)) {
        log.warn("Client RpcClient already registered. Bug??");
    }
    // channels remove themselves when closed.
    return rpcClient;
}

From source file:com.graylog.splunk.output.senders.TCPSender.java

License:Open Source License

protected void createBootstrap(final EventLoopGroup workerGroup) {
    final Bootstrap bootstrap = new Bootstrap();
    final SplunkSenderThread senderThread = new SplunkSenderThread(queue);

    bootstrap.group(workerGroup).channel(NioSocketChannel.class)
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 5000)
            .remoteAddress(new InetSocketAddress(hostname, port))
            .handler(new ChannelInitializer<SocketChannel>() {
                @Override/*w  w  w . j a va2s  .  co m*/
                protected void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast(new StringEncoder());

                    ch.pipeline().addLast(new SimpleChannelInboundHandler<ByteBuf>() {
                        @Override
                        protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
                            // we only send data, never read on the socket
                        }

                        @Override
                        public void channelActive(ChannelHandlerContext ctx) throws Exception {
                            senderThread.start(ctx.channel());
                        }

                        @Override
                        public void channelInactive(ChannelHandlerContext ctx) throws Exception {
                            LOG.info("Channel disconnected.");
                            senderThread.stop();
                            scheduleReconnect(ctx.channel().eventLoop());
                        }

                        @Override
                        public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
                                throws Exception {
                            LOG.error("Exception caught", cause);
                        }
                    });
                }
            });

    bootstrap.connect().addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
                LOG.info("Connected.");
            } else {
                LOG.error("Connection failed: {}", future.cause().getMessage());
                scheduleReconnect(future.channel().eventLoop());
            }
        }
    });
}

From source file:com.gxkj.demo.netty.discard.DiscardClient.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//w  w  w.  jav a2 s . c  o  m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new DiscardClientHandler(firstMessageSize));

        // 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.gxkj.demo.netty.discard.DiscardServer.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from   w  ww  .  ja  v  a  2s .c om*/
        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 DiscardServerHandler());
                    }
                });

        // 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.gxkj.demo.netty.echo.EchoClient.java

License:Apache License

public void run() throws Exception {
    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*w  ww  . ja  v 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 {
                        ch.pipeline().addLast(
                                //new LoggingHandler(LogLevel.INFO),
                                new EchoClientHandler(firstMessageSize));
                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(host, 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.gxkj.demo.netty.echo.EchoServer.java

License:Apache License

public void run() throws Exception {
    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//from   w  w w  .j a  va  2  s . 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 {
                        ch.pipeline().addLast(
                                //new LoggingHandler(LogLevel.INFO),
                                new EchoServerHandler());
                    }
                });

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

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

From source file:com.gxkj.demo.netty.proxy.HexDumpProxyBackendHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext ctx, Object msg) throws Exception {
    inboundChannel.writeAndFlush(msg).addListener(new ChannelFutureListener() {
        @Override/*from  w w  w  . j  a  v a  2 s. co m*/
        public void operationComplete(ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
                ctx.channel().read();
            } else {
                future.channel().close();
            }
        }
    });
}