Example usage for io.netty.channel ChannelFuture channel

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.lin.studytest.netty.server.EchoServer.java

License:Apache License

public static void main(String[] args) throws Exception {

    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from w  ww . j a va2 s. c o  m*/
        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();
                        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.linecorp.armeria.client.http.HttpRequestSubscriber.java

License:Apache License

/**
 * Invoked on each write of an {@link HttpObject}.
 *//*  ww w . ja  v a  2s . co m*/
@Override
public void operationComplete(ChannelFuture future) throws Exception {
    if (future.isSuccess()) {
        if (state != State.DONE) {
            subscription.request(1);
        }
        return;
    }

    fail(future.cause());

    final Throwable cause = future.cause();
    if (!(cause instanceof ClosedPublisherException)) {
        final Channel ch = future.channel();
        Exceptions.logIfUnexpected(logger, ch, HttpSession.get(ch).protocol(), cause);
        ch.close();
    }
}

From source file:com.linecorp.armeria.client.http.HttpSessionChannelFactory.java

License:Apache License

private void initSession(SessionProtocol protocol, ChannelFuture connectFuture,
        Promise<Channel> sessionPromise) {
    assert connectFuture.isSuccess();

    final Channel ch = connectFuture.channel();
    final EventLoop eventLoop = ch.eventLoop();
    assert eventLoop.inEventLoop();

    final ScheduledFuture<?> timeoutFuture = eventLoop.schedule(() -> {
        if (sessionPromise.tryFailure(new SessionProtocolNegotiationException(protocol,
                "connection established, but session creation timed out: " + ch))) {
            ch.close();//from   w  w  w .ja  v  a 2  s.  c o  m
        }
    }, options.connectTimeoutMillis(), TimeUnit.MILLISECONDS);

    ch.pipeline().addLast(new HttpSessionHandler(this, ch, sessionPromise, timeoutFuture));
}

From source file:com.linecorp.armeria.client.HttpRequestSubscriber.java

License:Apache License

/**
 * Invoked on each write of an {@link HttpObject}.
 *///w w w .j  a va  2s.c  om
@Override
public void operationComplete(ChannelFuture future) throws Exception {
    if (future.isSuccess()) {
        if (state == State.DONE) {
            // Successfully sent the request; schedule the response timeout.
            response.scheduleTimeout(ctx);
        } else {
            assert subscription != null;
            subscription.request(1);
        }
        return;
    }

    fail(future.cause());

    final Throwable cause = future.cause();
    if (!(cause instanceof ClosedPublisherException)) {
        final Channel ch = future.channel();
        Exceptions.logIfUnexpected(logger, ch, HttpSession.get(ch).protocol(), cause);
        ch.close();
    }
}

From source file:com.linecorp.armeria.client.HttpSessionChannelFactory.java

License:Apache License

private void initSession(SessionProtocol protocol, ChannelFuture connectFuture,
        Promise<Channel> sessionPromise) {
    assert connectFuture.isSuccess();

    final Channel ch = connectFuture.channel();
    final EventLoop eventLoop = ch.eventLoop();
    assert eventLoop.inEventLoop();

    final ScheduledFuture<?> timeoutFuture = eventLoop.schedule(() -> {
        if (sessionPromise.tryFailure(new SessionProtocolNegotiationException(protocol,
                "connection established, but session creation timed out: " + ch))) {
            ch.close();//  ww  w.j a  va 2 s . co m
        }
    }, connectTimeoutMillis, TimeUnit.MILLISECONDS);

    ch.pipeline().addLast(new HttpSessionHandler(this, ch, sessionPromise, timeoutFuture));
}

From source file:com.linkedin.mitm.proxy.ProxyServer.java

License:Open Source License

/**
 * Start proxy server/*from   ww  w.  ja  v  a 2 s . c om*/
 * */
public void start() throws InterruptedException {
    ServerBootstrap serverBootstrap = new ServerBootstrap();
    serverBootstrap.group(_acceptorGroup, _upstreamWorkerGroup);
    serverBootstrap.channelFactory(new ChannelFactory<ServerChannel>() {
        @Override
        public ServerChannel newChannel() {
            return new NioServerSocketChannel();
        }
    });
    serverBootstrap.childHandler(new ProxyInitializer(this));

    //bind
    ChannelFuture future = serverBootstrap.bind(_host, _port);

    //wait for the future
    future.awaitUninterruptibly();
    if (!future.isSuccess()) {
        future.channel().closeFuture().awaitUninterruptibly();
        throw new ChannelException(String.format("Failed to bind to: %s:%d", _host, _port), future.cause());
    } else {
        _allChannels.add(future.channel());
    }
}

From source file:com.linkedin.mitm.proxy.ProxyServer.java

License:Open Source License

/**
 * Stop proxy server//from   w  ww. j a  va  2s.  com
 * */
public void stop() {
    ChannelGroupFuture future = _allChannels.close().awaitUninterruptibly();
    if (!future.isSuccess()) {
        final Iterator<ChannelFuture> iter = future.iterator();
        while (iter.hasNext()) {
            final ChannelFuture cf = iter.next();
            if (!cf.isSuccess()) {
                LOG.warn(String.format("Failed to close channel %s because %s", cf.channel(), cf.cause()));
            }
        }
    }
    _acceptorGroup.shutdownGracefully();
    _upstreamWorkerGroup.shutdownGracefully();
    _downstreamWorkerGroup.shutdownGracefully();
}

From source file:com.linkedin.pinot.transport.netty.NettyServer.java

License:Apache License

@Override
public void run() {
    try {/* w ww.jav a2s  .  c  o m*/
        ServerBootstrap bootstrap = getServerBootstrap();

        LOGGER.info("Binding to the server port !!");

        // Bind and start to accept incoming connections.
        ChannelFuture f = bootstrap.bind(_port).sync();
        _channel = f.channel();
        LOGGER.info("Server bounded to port :" + _port + ", Waiting for closing");
        f.channel().closeFuture().sync();
        LOGGER.info(
                "Server boss channel is closed. Gracefully shutting down the server netty threads and pipelines");
    } catch (Exception e) {
        LOGGER.error("Got exception in the main server thread. Stopping !!", e);
    } finally {
        _shutdownComplete.set(true);
    }
}

From source file:com.linkedin.r2.transport.http.client.ChannelPoolLifecycle.java

License:Apache License

@Override
public void create(final Callback<Channel> channelCallback) {
    final long start = System.currentTimeMillis();
    _bootstrap.connect(_remoteAddress).addListener(new ChannelFutureListener() {
        @Override//w ww .  ja  v a 2  s .c o  m
        public void operationComplete(ChannelFuture channelFuture) throws Exception {
            if (channelFuture.isSuccess()) {
                synchronized (_createTimeTracker) {
                    _createTimeTracker.addValue(System.currentTimeMillis() - start);
                }
                Channel c = channelFuture.channel();
                if (_tcpNoDelay) {
                    c.config().setOption(ChannelOption.TCP_NODELAY, true);
                }
                _channelGroup.add(c);
                channelCallback.onSuccess(c);
            } else {
                channelCallback.onError(HttpNettyStreamClient.toException(channelFuture.cause()));
            }
        }
    });
}

From source file:com.linkedin.r2.transport.http.client.ChannelPoolLifecycle.java

License:Apache License

@Override
public void destroy(final Channel channel, final boolean error, final Callback<Channel> channelCallback) {
    if (channel.isOpen()) {
        channel.close().addListener(new ChannelFutureListener() {
            @Override/* w ww  .j av  a2s  .  c  om*/
            public void operationComplete(ChannelFuture channelFuture) throws Exception {
                if (channelFuture.isSuccess()) {
                    channelCallback.onSuccess(channelFuture.channel());
                } else {
                    channelCallback.onError(HttpNettyStreamClient.toException(channelFuture.cause()));
                }
            }
        });
    } else {
        channelCallback.onSuccess(channel);
    }
}