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.liusu.tcp.proxy.mine.server.ReadBackServer.java

License:Apache License

public void bind(int port) throws Exception {
    // ??NIO//from   w ww.  j ava2  s .  com
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 1024).childHandler(new ChildChannelHandler());
        // ???
        ChannelFuture f = b.bind(port).sync();

        // f.addListener(ChannelFutureListener.CLOSE);
        // ???
        f.channel().closeFuture().sync();
    } finally {
        // ?
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:com.ltln.modules.ni.omc.system.simulator.AlmClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    Constants.init();//from  w ww. ja v  a  2s  . c o m
    final SslContext sslCtx;
    if (SSL) {
        sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
    } else {
        sslCtx = null;
    }

    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    final EventExecutorGroup handlerGroup = new DefaultEventExecutorGroup(1);
    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(new AlarmMsgDecoder(8192, 7, 2, 0, 0, false));
                        p.addLast(new AlarmMsgEncoder());
                        p.addLast(handlerGroup, new AlarmClientHandler());
                    }
                });

        // 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.magnet.yak.load.NettyClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    String host = "54.148.43.16";
    int port = 5222;
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {/*from   w  ww.j a  v a2s.co  m*/
        Bootstrap b = new Bootstrap(); // (1)
        b.group(workerGroup); // (2)
        b.channel(NioSocketChannel.class); // (3)

        b.option(ChannelOption.SO_KEEPALIVE, true); // (4)
        b.handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws Exception {
                ch.pipeline().addLast(new XMPPHandler());
            }
        });

        ChannelFuture f = b.connect(host, port).sync(); // (5)

        f.await();

        Channel channel = f.channel();
        LOGGER.trace("main : Writing {}");
        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        workerGroup.shutdownGracefully();
    }
}

From source file:com.mapr.franz.netty.FranzClient.java

License:Apache License

public void run() throws Exception {
    // Configure the client.
    Bootstrap b = new Bootstrap();
    try {// ww  w .  j  a va 2s  .  c  om
        b.group(new NioEventLoopGroup()).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .remoteAddress(new InetSocketAddress(host, port))
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new LoggingHandler(LogLevel.INFO),
                                new FranzClientHandler(firstMessageSize));
                    }
                });

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

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

From source file:com.mapr.franz.netty.FranzServer.java

License:Apache License

public void run() throws Exception {
    // Configure the server.
    ServerBootstrap b = new ServerBootstrap();
    try {//  w w  w  .j  a  v a  2 s. c  om
        b.group(new NioEventLoopGroup(), new NioEventLoopGroup()).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100).localAddress(new InetSocketAddress(port))
                .childOption(ChannelOption.TCP_NODELAY, true).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 FranzServerHandler());
                    }
                });

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

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

From source file:com.mastfrog.acteur.io.FileWriter.java

License:Open Source License

@Override
public void operationComplete(ChannelFuture f) throws Exception {
    if (!f.channel().isOpen()) {
        return;/*  w  w  w. jav a2 s  .  c o  m*/
    }
    ByteBuf buf = f.channel().alloc().buffer(bufferSize);
    int bytes = buf.writeBytes(stream, bufferSize);
    if (bytes == -1) {
        stream.close();
        f.channel().writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT).addListener(CLOSE);
        return;
    }
    f = f.channel().writeAndFlush(new DefaultHttpContent(buf));
    f.addListener(this);
}

From source file:com.mastfrog.netty.http.client.HttpClient.java

License:Open Source License

private void submit(final URL url, HttpRequest rq, final AtomicBoolean cancelled, final ResponseFuture handle,
        final ResponseHandler<?> r, RequestInfo info, Duration timeout, boolean noAggregate) {
    if (info != null && info.isExpired()) {
        cancelled.set(true);//from www.  j a  va2s . c o  m
    }
    if (cancelled.get()) {
        handle.event(new State.Cancelled());
        return;
    }
    try {
        for (RequestInterceptor i : interceptors) {
            rq = i.intercept(rq);
        }
        final HttpRequest req = rq;
        Bootstrap bootstrap;
        if (url.getProtocol().isSecure()) {
            bootstrap = startSsl(url.getHostAndPort());
        } else {
            bootstrap = start(url.getHostAndPort());
        }
        if (!url.isValid()) {
            throw new IllegalArgumentException(url.getProblems() + "");
        }
        TimeoutTimerTask tt = null;
        if (info == null) {
            info = new RequestInfo(url, req, cancelled, handle, r, timeout, tt, noAggregate);
            if (timeout != null) {
                tt = new TimeoutTimerTask(cancelled, handle, r, info);
                timer.schedule(tt, timeout.getMillis());
            }
            info.timer = tt;
        }
        if (info.isExpired()) {
            handle.event(new State.Timeout(info.age()));
            return;
        }
        handle.event(new State.Connecting());
        //XXX who is escaping this?
        req.setUri(req.getUri().replaceAll("%5f", "_"));
        ChannelFuture fut = bootstrap.connect(url.getHost().toString(), url.getPort().intValue());
        if (tt != null) {
            fut.channel().closeFuture().addListener(tt);
        }
        fut.channel().attr(KEY).set(info);
        handle.setFuture(fut);
        if (!monitors.isEmpty()) {
            for (ActivityMonitor m : monitors) {
                m.onStartRequest(url);
            }
            fut.channel().closeFuture().addListener(new AdapterCloseNotifier(url));
        }

        fut.addListener(new ChannelFutureListener() {

            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                if (!future.isSuccess()) {
                    Throwable cause = future.cause();
                    if (cause == null) {
                        cause = new ConnectException(url.getHost().toString());
                    }
                    handle.event(new State.Error(cause));
                    if (r != null) {
                        r.onError(cause);
                    }
                    cancelled.set(true);
                }
                if (cancelled.get()) {
                    future.cancel(true);
                    if (future.channel().isOpen()) {
                        future.channel().close();
                    }
                    for (ActivityMonitor m : monitors) {
                        m.onEndRequest(url);
                    }
                    return;
                }
                handle.event(new State.Connected(future.channel()));
                handle.event(new State.SendRequest(req));
                future = future.channel().writeAndFlush(req);
                future.addListener(new ChannelFutureListener() {

                    @Override
                    public void operationComplete(ChannelFuture future) throws Exception {
                        if (cancelled.get()) {
                            future.cancel(true);
                            future.channel().close();
                        }
                        handle.event(new State.AwaitingResponse());
                    }

                });
            }

        });
    } catch (Exception ex) {
        Exceptions.chuck(ex);
    }
}

From source file:com.mastfrog.netty.http.client.ResponseFuture.java

License:Open Source License

boolean cancel(Duration forTimeout) {
    // We need to send the timeout event before setting the cancelled flag
    if (forTimeout != null && !cancelled.get()) {
        event(new State.Timeout(forTimeout));
    }/*  w w  w .  ja v  a  2s  .c om*/
    boolean result = cancelled.compareAndSet(false, true);
    if (result) {
        try {
            ChannelFuture fut = future;
            if (fut != null) {
                fut.cancel(true);
            }
            if (fut != null && fut.channel() != null && fut.channel().isOpen()) {
                fut.channel().close();
            }
        } finally {
            if (forTimeout == null) {
                event(new State.Cancelled());
            }
        }
        latch.countDown();
    }
    return result;
}

From source file:com.mastfrog.scamper.SctpClient.java

License:Open Source License

/**
 * Start the client, returning a ChannelFuture which can be waited on to
 * keep the client running (the returned future is the client SCTP socket's
 * channel's <code>closeFuture()</code> - call its <code>sync()</code>
 * method to block the current thread until the connection is closed.
 *
 * @return The close future for this client's connection
 * @throws InterruptedException if the connect process is interrupted
 *//*from w w w  . j  a v  a  2  s . c o m*/
public ChannelFuture start() throws InterruptedException {
    // Configure the client.
    Bootstrap b = new Bootstrap();

    configurer.init(b).handler(new LoggingHandler(LogLevel.INFO));

    logger.log(Level.INFO, "Start for {0} on {1}", new Object[] { host, port });
    // Start the client.
    ChannelFuture f = b.connect(host, port);
    if (logger.isLoggable(Level.FINE)) {
        f.addListener(new ChannelFutureListener() {

            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                logger.log(Level.FINE, "Connect to {0}:{1}", new Object[] { host, port });
            }

        });
    }
    f.sync();
    // Caller can until the connection is closed.
    return f.channel().closeFuture();
}

From source file:com.mastfrog.scamper.SctpServer.java

License:Open Source License

public ChannelFuture start(AtomicReference<ChannelFuture> connectFutureReceiver) throws InterruptedException {
    // Configure the server.
    ServerBootstrap b = new ServerBootstrap();
    config.init(b);//from www  . j  a v  a2 s . co  m
    b.handler(new LoggingHandler(LogLevel.INFO));

    logger.log(Level.FINE, "Start server on {0}", port);
    // Start the server.
    ChannelFuture f = b.bind(port);
    if (logger.isLoggable(Level.FINE)) {
        f.addListener(new ChannelFutureListener() {

            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                logger.log(Level.FINE, "Listening for connections on {0}", port);
            }

        });
    }
    f.sync();
    logger.log(Level.FINER, "Thread proceeding", Thread.currentThread());
    // For tests and things that need to delay execution until a connection
    // has been opened
    if (connectFutureReceiver != null) {
        connectFutureReceiver.set(f);
    }
    synchronized (this) {
        return future = f.channel().closeFuture();
    }
}