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.study.hc.net.netty.EchoServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure the server.
    // EventLoopGroup   accept NioEventLoop
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    // EventLoopGroup   I/O
    EventLoopGroup workerGroup2 = new NioEventLoopGroup(1);
    try {//from  w  w  w . j  av  a 2 s.  c  o  m
        // ??
        ServerBootstrap b = new ServerBootstrap();
        // ???reactor???
        b.group(bossGroup, workerGroup2).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100).handler(new LoggingHandler(LogLevel.DEBUG))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new EchoServerHandler());
                    }
                });
        // bind??
        ChannelFuture f = b.bind(PORT).sync();
        // ??
        f.channel().closeFuture().sync();
    } finally {
        // 
        bossGroup.shutdownGracefully();
        workerGroup2.shutdownGracefully();
    }
}

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From source file:com.supermy.im.netty.TCPServer.java

License:Apache License

/**
 * 3??/*from   ww  w.  j  a  v  a 2 s.c  om*/
 */
protected void doBind() {
    if (closed) {
        return;
    }

    serverBootstrap.bind(tcpPort).addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture f) throws Exception {
            if (f.isSuccess()) {
                System.out.println("Started Tcp Server: " + tcpPort);
            } else {
                System.out.println("Started Tcp Server Failed: " + tcpPort);

                // f.channel().eventLoop().schedule(() -> doBind(), 3, TimeUnit.SECONDS);

                f.channel().eventLoop().schedule(new Runnable() {
                    @Override
                    public void run() {
                        doBind();
                    }
                }, 3, TimeUnit.SECONDS);
            }
        }
    });
}

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From source file:com.system.distribute.server.FileClient.java

License:Apache License

public ChannelFuture run() throws Exception {
    // Configure the server.
    final Bootstrap bootstrap = BootstrapFactory.createBootstrap(ChannelType.NIO);

    bootstrap.handler(new FileClientHandler());
    bootstrap.option(ChannelOption.TCP_NODELAY, true);
    bootstrap.option(ChannelOption.SO_KEEPALIVE, true);
    bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 3000);

    try {//from w w w .j  av  a 2  s.  c  om
        final ChannelFuture channelFuture = bootstrap.connect(new InetSocketAddress(host, port)).sync();
        channelFuture.awaitUninterruptibly();

    } catch (InterruptedException e) {

    }

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

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

}

---

From source file:com.system.distribute.server.FileServer.java

License:Apache License

public void run() throws Exception {
    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//from ww w . ja  v a  2  s .c om
        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 {
                        ch.pipeline().addLast(new StringEncoder(CharsetUtil.UTF_8),
                                new LineBasedFrameDecoder(8192), new StringDecoder(CharsetUtil.UTF_8),
                                new FileHandler());
                    }
                });

        // 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.tc.websocket.server.handler.ProxyBackendHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext ctx, final Object msg) {
    ByteBuf buf = (ByteBuf) msg;//from   w w  w.  j  a v  a  2  s. c  o  m
    String data = new String(ByteBufUtil.getBytes(buf));
    ByteBuf bufData = buf;

    if (Config.getInstance().isEncrypted() && data.contains(StringCache.HTTP)) {
        data = data.replace(StringCache.HTTP, StringCache.HTTPS);
        bufData = Unpooled.wrappedBuffer(data.getBytes());
    }

    //ProxyFrontendHandler.writeToFile("backend", ByteBufUtil.getBytes(bufData));

    inboundChannel.writeAndFlush(msg).addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture future) {
            if (future.isSuccess()) {
                ctx.channel().read();

            } else {
                future.channel().close();
            }
        }
    });

}

---

From source file:com.tc.websocket.server.handler.ProxyFrontendHandler.java

License:Apache License

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

    this.handler = new ProxyBackendHandler(inboundChannel);

    // Start the connection attempt.
    Bootstrap b = new Bootstrap();
    b.group(inboundChannel.eventLoop()).channel(ctx.channel().getClass()).handler(this.handler)
            .option(ChannelOption.AUTO_READ, false);

    ChannelFuture f = b.connect(remoteHost, remotePort);
    outboundChannel = f.channel();

    f.addListener(new ChannelFutureListener() {
        @Override/*from   w  w  w.  ja  v a2 s  .co m*/
        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.tc.websocket.server.handler.ProxyFrontendHandler.java

License:Apache License

@Override
public void channelRead(final ChannelHandlerContext ctx, final Object msg) {

    ByteBuf buf = (ByteBuf) msg;/*  w w w.  j a  v  a  2s .c om*/
    String data = new String(ByteBufUtil.getBytes(buf));

    if (data.contains(Const.UPGRADE_WEBSOCKET) || data.contains(Const.GET_WEBSOCKET)) {
        proxy.set(false);

    } else if (data.contains(StringCache.HTTP_1_1)) {
        proxy.set(true);
    }

    if (proxy.get() == false) {
        writeToFile("frontend." + ctx.channel().id(), ByteBufUtil.getBytes(buf));
    }

    if (Config.getInstance().isCertAuth()) {
        SslHandler sslhandler = (SslHandler) ctx.channel().pipeline().get("ssl");
        try {
            X509Certificate cert = sslhandler.engine().getSession().getPeerCertificateChain()[0];
            Principal p = cert.getSubjectDN();

            /* Added by Miguel */
            LdapName ldapDN = new LdapName(p.getName());
            String username = "";
            String thumbprint = getThumbPrint(cert.getEncoded());

            for (Rdn rdn : ldapDN.getRdns()) {
                //System.out.println(rdn.getType() + " -> " + rdn.getValue());
                if (rdn.getType().equals("CN")) {
                    username = rdn.getValue().toString();
                    break;
                }
            }
            /* End Added by Miguel*/

            String sessionId = parseSessionID(data);

            if (sessionId != null) {
                String current = System.getProperty("user.dir");
                //System.out.println("Current working directory in Java : " + current);

                //File sessionFile = new File("c:/sessions/" + sessionId + ".txt");
                File sessionFile = new File(current + "/data/sessions/" + sessionId + ".txt");

                //only write the file if it hasn't been written yet.
                if (sessionFile.createNewFile()) {
                    FileUtils.write(sessionFile, p.getName().replaceAll("\"", "").replaceAll("\\+", ",") + "\n"
                            + username + "\n" + thumbprint);
                }
            }

        } catch (Exception e) {
            LOG.log(Level.SEVERE, null, e);
        }
    }

    if (proxy.get()) {
        ctx.channel().config().setAutoRead(false);
        if (outboundChannel.isActive()) {
            outboundChannel.writeAndFlush(buf).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) {
                    if (future.isSuccess()) {
                        // was able to flush out data, start to read the next chunk
                        ctx.channel().read();
                    } else {
                        future.channel().close();
                    }
                }
            });
        }
    } else {
        //make sure the backend handler knows its a websocket connection.
        this.handler.setWebsocket(true);

        //get handle on the pipeline.
        ChannelPipeline pipeline = ctx.pipeline();

        //apply the websocket handlers
        builder.apply(pipeline);

        //remove this handler.
        pipeline.remove(this);

        //fire the event to move on to the next handler.
        ctx.fireChannelRead(msg);
    }

}

---

From source file:com.tcy.app.netty4.Ne4Client.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/* w w  w .  j ava2  s. c  o m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new Ne4ClientHandler(firstMessageSize));

        // 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:com.tencent.mars.proxy.ProxyServer.java

License:Open Source License

public void start() throws Exception {
    try {//from  www. j a v  a  2s. c o  m
        serverBootstrap = new ServerBootstrap();
        serverBootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(channelHandler).option(ChannelOption.SO_BACKLOG, 128)
                .childOption(ChannelOption.SO_KEEPALIVE, true);

        ChannelFuture channelFuture = serverBootstrap.bind(port).sync();
        channelFuture.channel().closeFuture().sync();
    } catch (Exception e) {

    } finally {
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
    }
}

---

From source file:com.tesora.dve.parlb.MysqlClientHandler.java

License:Open Source License

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

    // Start the connection attempt.
    Bootstrap b = new Bootstrap();
    b.group(inboundChannel.eventLoop()).channel(NioSocketChannel.class)
            .handler(new LoadBalancerServerHandler(inboundChannel)).option(ChannelOption.AUTO_READ, false);
    ChannelFuture f = b.connect(peServerAddress);
    outboundChannel = f.channel();
    f.addListener(new ChannelFutureListener() {
        @Override//w  w  w . ja  v  a  2s . com
        public void operationComplete(ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
                // connection complete start to read first data
                inboundChannel.read();
            } else {
                // Close the connection if the connection attempt has failed.
                inboundChannel.close();
            }
        }
    });
}

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