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:chapter01.EchoClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();

    try {//  ww w.  ja v  a2 s  .c o  m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
            @Override
            public void initChannel(SocketChannel ch) throws Exception {
                ChannelPipeline p = ch.pipeline();
                p.addLast(new EchoClientHandler());
            }
        });

        ChannelFuture f = b.connect("localhost", 8888).sync();

        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }
}

From source file:chat.viska.xmpp.NettyTcpSession.java

License:Apache License

@SchedulerSupport(SchedulerSupport.CUSTOM)
@Override//ww w.  j av  a  2  s  .c  o  m
protected Completable openConnection(final Compression connectionCompression,
        final Compression tlsCompression) {
    final Bootstrap bootstrap = new Bootstrap();
    bootstrap.group(nettyEventLoopGroup);
    bootstrap.channel(NioSocketChannel.class);

    bootstrap.handler(new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(final SocketChannel channel) throws SSLException {
            if (getConnection().getTlsMethod() == Connection.TlsMethod.DIRECT) {
                tlsHandler = TLS_CONTEXT_BUILDER.build().newHandler(channel.alloc());
                channel.pipeline().addLast(PIPE_TLS, tlsHandler);
            } else {
                channel.pipeline().addLast(PIPE_TLS, new ChannelDuplexHandler());
            }
            channel.pipeline().addLast(PIPE_COMPRESSOR, new ChannelDuplexHandler());
            channel.pipeline().addLast(new DelimiterBasedFrameDecoder(MAX_STANZA_SIZE_BYTE, false, false,
                    Unpooled.wrappedBuffer(">".getBytes(StandardCharsets.UTF_8))));
            channel.pipeline().addLast(new StreamClosingDetector());
            channel.pipeline().addLast(PIPE_DECODER_XML, new XmlDecoder());
            channel.pipeline().addLast(new SimpleChannelInboundHandler<XmlDocumentStart>() {
                @Override
                protected void channelRead0(final ChannelHandlerContext ctx, final XmlDocumentStart msg)
                        throws Exception {
                    if (!"UTF-8".equalsIgnoreCase(msg.encoding())) {
                        sendError(new StreamErrorException(StreamErrorException.Condition.UNSUPPORTED_ENCODING,
                                "Only UTF-8 is supported in XMPP stream."));
                    }
                }
            });
            channel.pipeline().addLast(new StreamOpeningDetector());
            channel.pipeline().addLast(new XmlFrameDecoder(MAX_STANZA_SIZE_BYTE));
            channel.pipeline().addLast(new StringDecoder(StandardCharsets.UTF_8));
            channel.pipeline().addLast(new SimpleChannelInboundHandler<String>() {
                @Override
                protected void channelRead0(final ChannelHandlerContext ctx, final String msg)
                        throws Exception {
                    try {
                        feedXmlPipeline(preprocessInboundXml(msg));
                    } catch (SAXException ex) {
                        sendError(new StreamErrorException(StreamErrorException.Condition.BAD_FORMAT));
                    }
                }
            });
            channel.pipeline().addLast(new StringEncoder(StandardCharsets.UTF_8));
            channel.pipeline().addLast(new SimpleChannelInboundHandler<Object>() {
                @Override
                protected void channelRead0(final ChannelHandlerContext ctx, final Object msg) {
                }

                @Override
                public void exceptionCaught(final ChannelHandlerContext ctx, final Throwable cause) {
                    if (cause instanceof Exception) {
                        triggerEvent(new ExceptionCaughtEvent(NettyTcpSession.this, (Exception) cause));
                    } else {
                        throw new RuntimeException(cause);
                    }
                }
            });
        }
    });

    final ChannelFuture channelFuture = bootstrap.connect(getConnection().getDomain(),
            getConnection().getPort());
    return Completable.fromFuture(channelFuture).andThen(Completable.fromAction(() -> {
        this.nettyChannel = (SocketChannel) channelFuture.channel();
        nettyChannel.closeFuture().addListener(it -> changeStateToDisconnected());
    }));
}

From source file:client.DiscardClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {//  ww w  . ja v a  2  s.  co m
        sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
    } else {
        sslCtx = null;
    }

    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
            @Override
            protected void initChannel(SocketChannel ch) throws Exception {
                ChannelPipeline p = ch.pipeline();
                if (sslCtx != null) {
                    p.addLast(sslCtx.newHandler(ch.alloc(), HOST, PORT));
                }
                p.addLast(new DiscardClientHandler());
            }
        });

        // 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:cloudeventbus.client.EventBusImpl.java

License:Open Source License

private void connect() {
    synchronized (lock) {
        if (closed) {
            return;
        }/*  www  .  j  a  v a 2 s.com*/
        serverReady = false;
    }
    final ServerList.Server server = servers.nextServer();
    LOGGER.debug("Attempting connecting to {}", server.getAddress());
    new Bootstrap().group(eventLoopGroup).remoteAddress(server.getAddress()).channel(NioSocketChannel.class)
            .handler(new ClientChannelInitializer()).connect().addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (future.isSuccess()) {
                        LOGGER.debug("Connection to {} successful", server.getAddress());
                        server.connectionSuccess();
                        synchronized (lock) {
                            channel = future.channel();
                            if (closed) {
                                channel.close();
                            }
                        }
                    } else {
                        LOGGER.warn("Connection to {} failed", server.getAddress());
                        server.connectionFailure();
                        scheduleReconnect();
                        fireStateChange(ConnectionState.CONNECTION_FAILED, null);
                    }
                }
            });
}

From source file:club.jmint.crossing.server.CrossingServer.java

License:Apache License

public void start() {
    //load configuration
    //ConfigWizard cw = (ConfigWizard)WizardManager.getWizard("ConfigWizard");
    ServerConfig config = (ServerConfig) ConfigWizard.getConfig(Constants.CONFIG_SERVER);
    this.address = config.getItem("server.bind_address");
    this.port = Integer.parseInt(config.getItem("server.port"));
    this.backlog = Integer.parseInt(config.getItem("server.backlog"));
    this.ssl = Boolean.parseBoolean(config.getItem("server.ssl"));

    //Configure SSL
    if (ssl) {//ww w. j a va2  s .  co  m
        try {
            SelfSignedCertificate ssc = new SelfSignedCertificate();
            sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
        } catch (Exception e) {
            CrossLog.printStackTrace(e);
        }
    } 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, backlog).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ServerChannelInitializer(sslCtx));

        // Start the server.
        ChannelFuture f = b.bind(port).sync();
        CrossLog.logger.info("Crossing Server started......");

        // Wait until the server socket is closed.
        f.channel().closeFuture().sync();

    } catch (InterruptedException e) {
        CrossLog.printStackTrace(e);
    } finally {
        // Shut down all event loops to terminate all threads.
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
        CrossLog.logger.info("Crossing Server shutdown......");
    }
}

From source file:cn.david.main.EchoClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.git
    final SslContext sslCtx;
    if (SSL) {/*  ww w  .  j av  a 2s .com*/
        sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
    } 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(new LoggingHandler(LogLevel.INFO));
                        p.addLast(new EchoClientHandler());
                    }
                });

        // 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:cn.david.main.EchoServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {//from   w w w. j ava  2s  . c om
        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:cn.david.main.PersonServer.java

License:Apache License

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

    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from   ww w.  j  a va  2  s .  co m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ServerInitializer());

        // 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:cn.dennishucd.nettyhttpserver.HttpServer.java

License:Apache License

public void start(String host, int port) throws Exception {
    //create a reactor thread pool for NIO acceptor
    EventLoopGroup bossGroup = new NioEventLoopGroup();

    //create a reactor thread pool for NIO handler
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {/*from   w ww .ja  v a  2  s .  c o m*/
        ServerBootstrap b = new ServerBootstrap();

        b.option(ChannelOption.SO_BACKLOG, 1024);

        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new PushServerInitializer());

        ChannelFuture f = b.bind(host, port).sync();

        logger.info("The http server is started on " + host + ":" + port);

        f.channel().closeFuture().sync();
    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }
}

From source file:cn.savor.small.netty.NettyClient.java

License:Open Source License

public void connect() {
    System.out.println("client connection.................");
    if (channel != null && channel.isActive()) {
        return;/*from w  w w  .j  a v a  2 s.  c  om*/
    }

    ChannelFuture future = bootstrap.connect(host, port);
    System.out.println("client connection.................host=" + host + ",port=" + port + ",future="
            + future.isSuccess());

    future.addListener(new ChannelFutureListener() {
        public void operationComplete(ChannelFuture futureListener) throws Exception {
            if (futureListener.isSuccess()) {
                channel = futureListener.channel();
                System.out.println("Connect to server successfully!");
            } else {
                System.out.println("Failed to connect to server, try connect after 10s");

                futureListener.channel().eventLoop().schedule(new Runnable() {
                    @Override
                    public void run() {
                        connect();
                    }
                }, 1, TimeUnit.SECONDS);
            }
        }
    });
}