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();

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Document

Returns a channel where the I/O operation associated with this future takes place.

Usage

From source file:com.relayrides.pushy.apns.FeedbackServiceClient.java

License:Open Source License

/**
 * <p>Retrieves a list of expired tokens from the APNs feedback service. Be warned that this is a
 * <strong>destructive operation</strong>. According to Apple's documentation:</p>
 *
 * <blockquote>The feedback service's list is cleared after you read it. Each time you connect to the feedback
 * service, the information it returns lists only the failures that have happened since you last
 * connected.</blockquote>/*from   w  ww.  ja v  a  2  s .  co  m*/
 *
 * @param timeout the time after the last received data after which the connection to the feedback service should
 * be closed
 * @param timeoutUnit the unit of time in which the given {@code timeout} is measured
 *
 * @return a list of tokens that have expired since the last connection to the feedback service
 *
 * @throws InterruptedException if interrupted while waiting for a response from the feedback service
 * @throws FeedbackConnectionException if the connection to the feedback service failed for any reason
 */
public synchronized List<ExpiredToken> getExpiredTokens(final long timeout, final TimeUnit timeoutUnit)
        throws InterruptedException, FeedbackConnectionException {

    this.expiredTokens.clear();

    final Bootstrap bootstrap = new Bootstrap();
    bootstrap.group(this.eventLoopGroup);
    bootstrap.channel(NioSocketChannel.class);

    final FeedbackServiceClient feedbackClient = this;
    bootstrap.handler(new ChannelInitializer<SocketChannel>() {

        @Override
        protected void initChannel(final SocketChannel channel) throws Exception {
            final ChannelPipeline pipeline = channel.pipeline();

            final SSLEngine sslEngine = feedbackClient.sslContext.createSSLEngine();
            sslEngine.setUseClientMode(true);

            pipeline.addLast("ssl", new SslHandler(sslEngine));
            pipeline.addLast("readTimeoutHandler", new ReadTimeoutHandler(timeout, timeoutUnit));
            pipeline.addLast("decoder", new ExpiredTokenDecoder());
            pipeline.addLast("handler", new FeedbackClientHandler(feedbackClient));
        }

    });

    final ChannelFuture connectFuture = bootstrap
            .connect(this.environment.getFeedbackHost(), this.environment.getFeedbackPort()).await();

    if (connectFuture.isSuccess()) {
        log.debug("Connected to feedback service.");

        final SslHandler sslHandler = connectFuture.channel().pipeline().get(SslHandler.class);

        if (sslHandler != null) {
            final Future<Channel> handshakeFuture = sslHandler.handshakeFuture().await();

            if (handshakeFuture.isSuccess()) {
                log.debug("Completed TLS handshake with feedback service.");

                // The feedback service will send us a list of device tokens as soon as we complete the SSL
                // handshake, then hang up. While we're waiting to sync with the connection closure, we'll be
                // receiving messages from the feedback service from another thread.
                connectFuture.channel().closeFuture().await();
            } else {
                log.debug("Failed to complete TLS handshake with feedback service.", handshakeFuture.cause());

                connectFuture.channel().close().await();
                throw new FeedbackConnectionException(handshakeFuture.cause());
            }
        } else {
            log.warn("Feedback client failed to get SSL handler and could not wait for TLS handshake.");

            connectFuture.channel().close().await();
            throw new FeedbackConnectionException(null);
        }
    } else {
        log.debug("Failed to connect to feedback service.", connectFuture.cause());
        throw new FeedbackConnectionException(connectFuture.cause());
    }

    return new ArrayList<ExpiredToken>(this.expiredTokens);
}

From source file:com.relayrides.pushy.apns.FeedbackServiceConnection.java

License:Open Source License

/**
 * <p>Connects to the APNs feedback service and waits for expired tokens to arrive. Be warned that this is a
 * <strong>destructive operation</strong>. According to Apple's documentation:</p>
 *
 * <blockquote>The feedback service's list is cleared after you read it. Each time you connect to the feedback
 * service, the information it returns lists only the failures that have happened since you last
 * connected.</blockquote>/*from   ww  w .j a  v  a  2  s .  co  m*/
 */
public synchronized void connect() {

    if (this.connectFuture != null) {
        throw new IllegalStateException(String.format("%s already started a connection attempt.", this.name));
    }

    final Bootstrap bootstrap = new Bootstrap();
    bootstrap.group(this.eventLoopGroup);
    bootstrap.channel(NioSocketChannel.class);

    final FeedbackServiceConnection feedbackConnection = this;
    bootstrap.handler(new ChannelInitializer<SocketChannel>() {

        @Override
        protected void initChannel(final SocketChannel channel) throws Exception {
            final ChannelPipeline pipeline = channel.pipeline();

            final SSLEngine sslEngine = feedbackConnection.sslContext.createSSLEngine();
            sslEngine.setUseClientMode(true);

            pipeline.addLast("ssl", new SslHandler(sslEngine));
            pipeline.addLast("readTimeoutHandler",
                    new ReadTimeoutHandler(feedbackConnection.configuration.getReadTimeout()));
            pipeline.addLast("decoder", new ExpiredTokenDecoder());
            pipeline.addLast("handler", new FeedbackClientHandler(feedbackConnection));
        }
    });

    this.connectFuture = bootstrap.connect(this.environment.getFeedbackHost(),
            this.environment.getFeedbackPort());
    this.connectFuture.addListener(new GenericFutureListener<ChannelFuture>() {

        @Override
        public void operationComplete(final ChannelFuture connectFuture) {

            if (connectFuture.isSuccess()) {
                log.debug("{} connected; waiting for TLS handshake.", feedbackConnection.name);

                final SslHandler sslHandler = connectFuture.channel().pipeline().get(SslHandler.class);

                try {
                    sslHandler.handshakeFuture().addListener(new GenericFutureListener<Future<Channel>>() {

                        @Override
                        public void operationComplete(final Future<Channel> handshakeFuture) {
                            if (handshakeFuture.isSuccess()) {
                                log.debug("{} successfully completed TLS handshake.", feedbackConnection.name);

                                if (feedbackConnection.listener != null) {
                                    feedbackConnection.listener.handleConnectionSuccess(feedbackConnection);
                                }

                            } else {
                                log.debug("{} failed to complete TLS handshake with APNs feedback service.",
                                        feedbackConnection.name, handshakeFuture.cause());

                                connectFuture.channel().close();

                                if (feedbackConnection.listener != null) {
                                    feedbackConnection.listener.handleConnectionFailure(feedbackConnection,
                                            handshakeFuture.cause());
                                }
                            }
                        }
                    });
                } catch (NullPointerException e) {
                    log.warn("{} failed to get SSL handler and could not wait for a TLS handshake.",
                            feedbackConnection.name);

                    connectFuture.channel().close();

                    if (feedbackConnection.listener != null) {
                        feedbackConnection.listener.handleConnectionFailure(feedbackConnection, e);
                    }
                }
            } else {
                log.debug("{} failed to connect to APNs feedback service.", feedbackConnection.name,
                        connectFuture.cause());

                if (feedbackConnection.listener != null) {
                    feedbackConnection.listener.handleConnectionFailure(feedbackConnection,
                            connectFuture.cause());
                }
            }
        }
    });
}

From source file:com.replaymod.sponge.recording.spongecommon.SpongeImplementation.java

License:MIT License

@Listener
public void hookChannels(GameInitializationEvent event) {
    Game game = event.getGame();/*from   ww  w.j av  a2 s .com*/
    Server server = game.getServer();
    Method getNetworkSystem = null;
    for (Method m : server.getClass().getMethods()) {
        if ("net.minecraft.network.NetworkSystem".equals(m.getReturnType().getName())) {
            getNetworkSystem = m;
        }
    }
    if (getNetworkSystem == null) {
        throw new RuntimeException("Could not find getNetworkSystem in " + server);
    }
    try {
        Object networkSystem = getNetworkSystem.invoke(server);
        SpongeChannelInitializer channelInitializer = new SpongeChannelInitializer(game);
        @SuppressWarnings("unchecked")
        List<ChannelFuture> endpoints = (List) Reflection.getField(networkSystem.getClass(), "field_151274_e",
                networkSystem);
        for (ChannelFuture endpoint : endpoints) {
            endpoint.channel().pipeline().addFirst(channelInitializer);
        }
    } catch (IllegalAccessException | NoSuchFieldException | InvocationTargetException e) {
        e.printStackTrace();
    }
}

From source file:com.repo.netty.proxy.HexDumpProxyFrontendHandler.java

License:Apache License

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

    // Start the connection attempt.
    Bootstrap b = new Bootstrap();
    b.group(inboundChannel.eventLoop()).channel(ctx.channel().getClass())
            .handler(new HexDumpProxyBackendHandler(inboundChannel)).option(ChannelOption.AUTO_READ, false);
    ChannelFuture f = b.connect(remoteHost, remotePort);
    outboundChannel = f.channel();
    f.addListener(new ChannelFutureListener() {
        @Override//w w w  .jav a2s .  com
        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.robert.NettyProject.EchoClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.git
    final SslContext sslCtx;
    if (SSL) {/* w w w .ja v  a  2  s  . com*/
        sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
    } else {
        sslCtx = null;
    }

    // Configure the client.
    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 {
                        ChannelPipeline p = ch.pipeline();
                        if (sslCtx != null) {
                            p.addLast(sslCtx.newHandler(ch.alloc(), HOST, PORT));
                        }
                        p.addLast("encode", new StringEncoder());
                        p.addLast("decode", new StringDecoder());
                        // p.addLast(new LoggingHandler(LogLevel.INFO));
                        p.addLast(new EchoClientHandler());
                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(HOST, PORT).sync();
        Channel channel = f.channel();
        System.out.println("" + System.nanoTime());
        //         for(int i=0;i<10000;i++){            
        channel.writeAndFlush("hello");
        //         }

        // 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.robert.NettyProject.EchoServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {/*from   ww  w  .j  a va  2s .  c  o  m*/
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
    } else {
        sslCtx = null;
    }

    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    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 ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        if (sslCtx != null) {
                            p.addLast(sslCtx.newHandler(ch.alloc()));
                        }
                        p.addLast("encode", new StringEncoder());
                        p.addLast("decode", new StringDecoder());
                        // p.addLast(new LoggingHandler(LogLevel.INFO));
                        p.addLast(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.rr.echoserver.EchoServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    System.out.println("Writing on separate threads: " + EchoServer.THREADED);

    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {/*from  ww  w  . j  a v a2  s. c o  m*/
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
    } else {
        sslCtx = null;
    }

    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    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 ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        if (sslCtx != null) {
                            p.addLast(sslCtx.newHandler(ch.alloc()));
                        }
                        //p.addLast(new LoggingHandler(LogLevel.INFO));
                        p.addLast(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.sample.netty.socket.client.Client.java

public static void main(String[] args) throws Exception {
    String host = "localhost";
    int port = 8080;
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//  w ww  . j  a va2  s.  c  om
        Bootstrap b = new Bootstrap();
        b.group(workerGroup);
        b.channel(NioSocketChannel.class);
        b.option(ChannelOption.SO_KEEPALIVE, true);
        b.handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws Exception {
                ch.pipeline().addLast(new MessageDecoder(), new ClientHandlerInbound());
                ch.pipeline().addLast(new MessageEncoder(), new ClientHandlerOutbound());
            }
        });
        ChannelFuture f = b.connect(host, port).sync();
        f.channel().writeAndFlush(
                String.format("Usurio = '%s'", System.getProperties().getProperty("user.name")));
        f.channel().closeFuture().sync();
    } finally {
        workerGroup.shutdownGracefully();
    }
}

From source file:com.sample.netty.socket.server.Server.java

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//from w  w w  .  ja  v a  2s  .  c  o m
        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 MessageDecoder(), new ServerHandlerInbound());
                        ch.pipeline().addLast(new MessageEncoder(), new ServerHandlerOutbound());
                    }
                }).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.sangupta.swift.netty.proxy.ProxyBackendHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext channelHandlerContext, Object message) {
    inboundChannel.writeAndFlush(message).addListener(new ChannelFutureListener() {

        @Override/*from  w  ww .j  a  v a2 s. c  o  m*/
        public void operationComplete(ChannelFuture future) {
            if (future.isSuccess()) {
                channelHandlerContext.channel().read();
            } else {
                future.channel().close();
            }
        }

    });
}