Example usage for io.netty.channel ChannelInitializer ChannelInitializer

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

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

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ChannelInitializer

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From source file:com.github.sparkfy.network.server.TransportServer.java

License:Apache License

private void init(String hostToBind, int portToBind) {

    IOMode ioMode = IOMode.valueOf(conf.ioMode());
    EventLoopGroup bossGroup = NettyUtils.createEventLoop(ioMode, conf.serverThreads(), "shuffle-server");
    EventLoopGroup workerGroup = bossGroup;

    PooledByteBufAllocator allocator = NettyUtils.createPooledByteBufAllocator(conf.preferDirectBufs(),
            true /* allowCache */, conf.serverThreads());

    bootstrap = new ServerBootstrap().group(bossGroup, workerGroup)
            .channel(NettyUtils.getServerChannelClass(ioMode)).option(ChannelOption.ALLOCATOR, allocator)
            .childOption(ChannelOption.ALLOCATOR, allocator);

    if (conf.backLog() > 0) {
        bootstrap.option(ChannelOption.SO_BACKLOG, conf.backLog());
    }//from www  . j  a  v a2  s  .  c o  m

    if (conf.receiveBuf() > 0) {
        bootstrap.childOption(ChannelOption.SO_RCVBUF, conf.receiveBuf());
    }

    if (conf.sendBuf() > 0) {
        bootstrap.childOption(ChannelOption.SO_SNDBUF, conf.sendBuf());
    }

    bootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            RpcHandler rpcHandler = appRpcHandler;
            for (TransportServerBootstrap bootstrap : bootstraps) {
                rpcHandler = bootstrap.doBootstrap(ch, rpcHandler);
            }
            context.initializePipeline(ch, rpcHandler);
        }
    });

    InetSocketAddress address = hostToBind == null ? new InetSocketAddress(portToBind)
            : new InetSocketAddress(hostToBind, portToBind);
    channelFuture = bootstrap.bind(address);
    channelFuture.syncUninterruptibly();

    port = ((InetSocketAddress) channelFuture.channel().localAddress()).getPort();
    logger.debug("Shuffle server started on port :" + port);
}

From source file:com.github.vitrifiedcode.javautilities.netty.DiscardServer.java

License:Open Source License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup(); // (1)
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*  ww  w.  j  av  a2  s  .co m*/
        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.github.zk1931.jzab.NettyTransport.java

License:Apache License

/**
 * Constructs a NettyTransport object.//from w w  w  . ja  va2  s.c o m
 *
 * @param hostPort "hostname:port" string. The netty transport binds to the
 *                 port specified in the string.
 * @param receiver receiver callback.
 * @param sslParam Ssl parameters.
 * @param dir the directory used to store the received file.
 */
public NettyTransport(String hostPort, final Receiver receiver, ZabConfig.SslParameters sslParam,
        final File dir) throws InterruptedException, GeneralSecurityException, IOException {
    super(receiver);
    this.keyStore = sslParam.getKeyStore();
    this.trustStore = sslParam.getTrustStore();
    this.keyStorePassword = sslParam.getKeyStorePassword() != null
            ? sslParam.getKeyStorePassword().toCharArray()
            : null;
    this.trustStorePassword = sslParam.getTrustStorePassword() != null
            ? sslParam.getTrustStorePassword().toCharArray()
            : null;
    this.dir = dir;
    if (isSslEnabled()) {
        initSsl();
    }

    this.hostPort = hostPort;
    String[] address = hostPort.split(":", 2);
    int port = Integer.parseInt(address[1]);
    ServerBootstrap b = new ServerBootstrap();
    b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).option(ChannelOption.SO_BACKLOG, 128)
            .option(ChannelOption.SO_REUSEADDR, true).childOption(ChannelOption.SO_KEEPALIVE, true)
            .childOption(ChannelOption.TCP_NODELAY, true).childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel ch) throws Exception {
                    if (isSslEnabled()) {
                        SSLEngine engine = serverContext.createSSLEngine();
                        engine.setUseClientMode(false);
                        engine.setNeedClientAuth(true);
                        ch.pipeline().addLast(new SslHandler(engine));
                    }
                    // Incoming handlers
                    ch.pipeline().addLast(new MainHandler());
                    ch.pipeline().addLast(new ServerHandshakeHandler());
                    ch.pipeline().addLast(new NotifyHandler());
                    ch.pipeline().addLast(new ServerErrorHandler());
                }
            });

    // Travis build fails once in a while because it fails to bind to a port.
    // This is most likely a transient failure. Retry binding for 5 times with
    // 1 second sleep in between before giving up.
    int bindRetryCount = 5;
    for (int i = 0;; i++) {
        try {
            channel = b.bind(port).sync().channel();
            LOG.info("Server started: {}", hostPort);
            return;
        } catch (Exception ex) {
            if (i >= bindRetryCount) {
                throw ex;
            }
            LOG.debug("Failed to bind to {}. Retrying after 1 second.", hostPort);
            Thread.sleep(1000);
        }
    }
}

From source file:com.github.zk1931.jzab.transport.NettyTransport.java

License:Apache License

/**
 * Constructs a NettyTransport object.//from  w w w  . j a va  2  s .c  o  m
 *
 * @param hostPort "hostname:port" string. The netty transport binds to the
 *                 port specified in the string.
 * @param receiver receiver callback.
 * @param sslParam Ssl parameters.
 * @param dir the directory used to store the received file.
 */
public NettyTransport(String hostPort, final Receiver receiver, SslParameters sslParam, final File dir)
        throws InterruptedException, GeneralSecurityException, IOException {
    super(receiver);
    this.keyStore = sslParam.getKeyStore();
    this.trustStore = sslParam.getTrustStore();
    this.keyStorePassword = sslParam.getKeyStorePassword() != null
            ? sslParam.getKeyStorePassword().toCharArray()
            : null;
    this.trustStorePassword = sslParam.getTrustStorePassword() != null
            ? sslParam.getTrustStorePassword().toCharArray()
            : null;
    this.dir = dir;
    if (isSslEnabled()) {
        initSsl();
    }

    this.hostPort = hostPort;
    String[] address = hostPort.split(":", 2);
    int port = Integer.parseInt(address[1]);
    ServerBootstrap b = new ServerBootstrap();
    b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).option(ChannelOption.SO_BACKLOG, 128)
            .option(ChannelOption.SO_REUSEADDR, true).childOption(ChannelOption.SO_KEEPALIVE, true)
            .childOption(ChannelOption.TCP_NODELAY, true).childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel ch) throws Exception {
                    if (isSslEnabled()) {
                        SSLEngine engine = serverContext.createSSLEngine();
                        engine.setUseClientMode(false);
                        engine.setNeedClientAuth(true);
                        ch.pipeline().addLast(new SslHandler(engine));
                    }
                    // Incoming handlers
                    ch.pipeline().addLast(new MainHandler());
                    ch.pipeline().addLast(new ServerHandshakeHandler());
                    ch.pipeline().addLast(new NotifyHandler());
                    ch.pipeline().addLast(new ErrorHandler());
                    // Outgoing handlers.
                    ch.pipeline().addLast("frameEncoder", new LengthFieldPrepender(4));
                }
            });

    // Travis build fails once in a while because it fails to bind to a port.
    // This is most likely a transient failure. Retry binding for 5 times with
    // 1 second sleep in between before giving up.
    int bindRetryCount = 5;
    for (int i = 0;; i++) {
        try {
            channel = b.bind(port).sync().channel();
            LOG.info("Server started: {}", hostPort);
            return;
        } catch (Exception ex) {
            if (i >= bindRetryCount) {
                throw ex;
            }
            LOG.debug("Failed to bind to {}. Retrying after 1 second.", hostPort);
            Thread.sleep(1000);
        }
    }
}

From source file:com.goide.dlv.DlvRemoteVmConnection.java

License:Apache License

@NotNull
@Override//  w  ww  .  jav a 2 s .  c o  m
public Bootstrap createBootstrap(@NotNull InetSocketAddress address, @NotNull final AsyncPromise<Vm> vmResult) {
    return createBootstrap().handler(new ChannelInitializer() {
        @Override
        protected void initChannel(@NotNull Channel channel) throws Exception {
            vmResult.setResult(new DlvVm(getDebugEventListener(), channel));
        }
    });
}

From source file:com.google.cloud.pubsub.proxy.moquette.NettyAcceptor.java

License:Open Source License

private void initFactory(String host, int port, final PipelineInitializer pipeliner) {
    ServerBootstrap bootsrap = new ServerBootstrap();
    bootsrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override/*from ww  w . ja va  2  s .c  om*/
                public void initChannel(SocketChannel ch) throws Exception {
                    ChannelPipeline pipeline = ch.pipeline();
                    try {
                        pipeliner.init(pipeline);
                    } catch (Throwable th) {
                        LOG.error("Severe error during pipeline creation", th);
                        throw th;
                    }
                }
            }).option(ChannelOption.SO_BACKLOG, 128).option(ChannelOption.SO_REUSEADDR, true)
            .option(ChannelOption.TCP_NODELAY, true).childOption(ChannelOption.SO_KEEPALIVE, true);
    try {
        // Bind and start to accept incoming connections.
        ChannelFuture future = bootsrap.bind(host, port);
        LOG.info("Server binded host: {}, port: {}", host, port);
        future.sync();
    } catch (InterruptedException ex) {
        LOG.error(null, ex);
    }
}

From source file:com.google.devtools.build.lib.remote.blobstore.http.HttpBlobStoreTest.java

License:Open Source License

private ServerSocketChannel startServer(ChannelHandler handler) throws Exception {
    EventLoopGroup eventLoop = new NioEventLoopGroup(1);
    ServerBootstrap sb = new ServerBootstrap().group(eventLoop).channel(NioServerSocketChannel.class)
            .childHandler(new ChannelInitializer<NioSocketChannel>() {
                @Override/*from   w ww  . j  av  a2 s  .  c  o  m*/
                protected void initChannel(NioSocketChannel ch) {
                    ch.pipeline().addLast(new HttpServerCodec());
                    ch.pipeline().addLast(new HttpObjectAggregator(1000));
                    ch.pipeline().addLast(handler);
                }
            });
    return ((ServerSocketChannel) sb.bind("localhost", 0).sync().channel());
}

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/*from www  . j  a  v  a 2 s  .c  om*/
                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.grillecube.client.network.ClientNetwork.java

public void start(String host, int port) throws Exception {
    this.workerGroup = new NioEventLoopGroup();
    this.bootstrap = new Bootstrap(); // (1)
    this.bootstrap.group(this.workerGroup); // (2)
    this.bootstrap.channel(NioSocketChannel.class); // (3)
    this.bootstrap.option(ChannelOption.SO_KEEPALIVE, true); // (4)
    this.bootstrap.handler(new ChannelInitializer<SocketChannel>() {
        @Override/* w  w  w .  java2  s  . c om*/
        public void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline().addLast(new TimeClientHandler());
        }
    });

    // Start the client.
    try {
        this.channel = this.bootstrap.connect(host, port).sync(); // (5)
    } catch (Exception exception) {
        // args are: quiettime, timeout, time unit
        this.workerGroup.shutdownGracefully(0, 10, TimeUnit.SECONDS);
        Logger.get().log(Level.ERROR, "Couldnt connect to host: " + host + ":" + port);
        exception.printStackTrace(Logger.get().getPrintStream());

        this.bootstrap = null;
        this.channel = null;
        this.workerGroup = null;
    }
}

From source file:com.grillecube.engine.network.client.ClientNetwork.java

public void start(String host, int port) throws Exception {
    this._workergroup = new NioEventLoopGroup();
    this._bootstrap = new Bootstrap(); // (1)
    this._bootstrap.group(this._workergroup); // (2)
    this._bootstrap.channel(NioSocketChannel.class); // (3)
    this._bootstrap.option(ChannelOption.SO_KEEPALIVE, true); // (4)
    this._bootstrap.handler(new ChannelInitializer<SocketChannel>() {
        @Override//  ww  w  . ja  va 2 s.c o m
        public void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline().addLast(new TimeClientHandler());
        }
    });

    // Start the client.
    try {
        this._channel = this._bootstrap.connect(host, port).sync(); // (5)
    } catch (Exception exception) {
        // args are: quiettime, timeout, time unit
        this._workergroup.shutdownGracefully(0, 10, TimeUnit.SECONDS);
        Logger.get().log(Level.ERROR, "Couldnt connect to host: " + host + ":" + port);
        exception.printStackTrace(Logger.get().getPrintStream());

        this._bootstrap = null;
        this._channel = null;
        this._workergroup = null;
    }
}