Example usage for io.netty.channel.nio NioEventLoopGroup NioEventLoopGroup

List of usage examples for io.netty.channel.nio NioEventLoopGroup NioEventLoopGroup

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Introduction

In this page you can find the example usage for io.netty.channel.nio NioEventLoopGroup NioEventLoopGroup.

Prototype

public NioEventLoopGroup()

Source Link

Document

Create a new instance using the default number of threads, the default ThreadFactory and the SelectorProvider which is returned by SelectorProvider#provider() .

Usage

From source file:com.eightkdata.mongowp.mongoserver.MongoServer.java

License:Open Source License

public void run() {
    // TODO: provide custom ThreadFactories to the EventLoopGroup to name threads correctly?
    connectionGroup = new NioEventLoopGroup();
    workerGroup = new NioEventLoopGroup();
    try {/*from w  w w.  j  a  v  a  2 s.  c o  m*/
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(connectionGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel socketChannel) throws Exception {
                        buildChildHandlerPipeline(socketChannel.pipeline());
                    }
                })
        // TODO: set TCP channel options?
        ;

        ChannelFuture channelFuture = bootstrap.bind(port).awaitUninterruptibly();

        try {
            channelFuture.channel().closeFuture().sync();
        } catch (InterruptedException interruptedException) {
            LOGGER.error("Error", interruptedException);
            // TODO: perform proper shutdown
        } catch (Throwable throwable) {
            LOGGER.error("Error", throwable);
            // TODO: perform proper shutdown
        }
    } finally {
        workerGroup.shutdownGracefully();
        connectionGroup.shutdownGracefully();
    }
}

From source file:com.elephant.framework.network.telnet.netty.TelnetClient.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//  w  ww. j  a  v  a2 s.co  m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new TelnetClientInitializer());

        // Start the connection attempt.
        Channel ch = b.connect(host, port).sync().channel();

        // Read commands from the stdin.
        ChannelFuture lastWriteFuture = null;
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        for (;;) {
            String line = in.readLine();
            if (line == null) {
                break;
            }

            // Sends the received line to the server.
            lastWriteFuture = ch.writeAndFlush(line + "\r\n");

            // If user typed the 'bye' command, wait until the server closes
            // the connection.
            if ("bye".equals(line.toLowerCase())) {
                ch.closeFuture().sync();
                break;
            }
        }

        // Wait until all messages are flushed before closing the channel.
        if (lastWriteFuture != null) {
            lastWriteFuture.sync();
        }
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.example.client.ClientMain.java

License:Apache License

public void run() throws InterruptedException {
    final NioEventLoopGroup workerLoop = new NioEventLoopGroup();
    try (final GracefulShutdown ignored = GracefulShutdown.gracefulShutdown(workerLoop::shutdownGracefully)) {
        final Bootstrap bootstrap = new Bootstrap(); // ServerBootstrap ??????????
        final ChannelFuture future = bootstrap.group(workerLoop) // ??? ????? boss /worker ??????
                .channel(NioSocketChannel.class) // NioServerSocketChannel ???????
                .option(ChannelOption.SO_KEEPALIVE, true) // ???? parent ??????? childOption ????
                .handler(ClientChannelInitializerConfigurer.channelInitializer()).connect(host, port) // bind ????? connect
                .sync();//  w  ww .  j a  va  2 s . co m
        future.channel().closeFuture().sync();
    }
}

From source file:com.example.discard.DiscardServerMain.java

License:Apache License

public void run() throws Exception {
    final NioEventLoopGroup bossGroup = new NioEventLoopGroup();//1
    final NioEventLoopGroup workerGroup = new NioEventLoopGroup();
    try (AutoCloseable ignore = new ShutDownGracefully(bossGroup, workerGroup)) {
        final ServerBootstrap bootstrap = new ServerBootstrap();//2
        bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)//3
                .childHandler(new ChannelInitializer<SocketChannel>() {//4
                    @Override/*from   w w w.j  a v  a 2  s .co m*/
                    protected void initChannel(final SocketChannel ch) {
                        ch.pipeline().addLast(new DiscardServerHandler());
                    }
                }).option(ChannelOption.SO_BACKLOG, 128)//5
                .childOption(ChannelOption.SO_KEEPALIVE, true); //6
        final ChannelFuture channelFuture = bootstrap.bind(port).sync();//7
        channelFuture.channel().closeFuture().sync();
    }
}

From source file:com.example.http.hello.HttpHelloServer.java

License:Apache License

private void run() throws InterruptedException {
    final NioEventLoopGroup bossGroup = new NioEventLoopGroup();
    final NioEventLoopGroup workerGroup = new NioEventLoopGroup();
    try (final GracefulShutdown ignored = GracefulShutdown.gracefulShutdown(bossGroup::shutdownGracefully,
            workerGroup::shutdownGracefully)) {
        final ServerBootstrap serverBootstrap = new ServerBootstrap();
        serverBootstrap.option(ChannelOption.SO_BACKLOG, 1024);
        serverBootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(ServerChannelInitializationConfigurer.channelInitializer());

        final Channel channel = serverBootstrap.bind(port).sync().channel();

        log.info("server started: http://localhost:{}/", port);

        channel.closeFuture().sync();//  ww w . j  a  va  2  s  .co m
    }
}

From source file:com.example.server.ServerMain.java

License:Apache License

public void run() throws InterruptedException {
    final NioEventLoopGroup parentGroup = new NioEventLoopGroup();
    final NioEventLoopGroup workerGroup = new NioEventLoopGroup();

    try (final GracefulShutdown ignored = GracefulShutdown.gracefulShutdown(parentGroup::shutdownGracefully,
            workerGroup::shutdownGracefully)) {
        final ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(parentGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(ServerChannelInitializationConfigurer.channelInitializer())
                .option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);
        log.info("server start");
        final ChannelFuture channelFuture = bootstrap.bind(port).sync();
        channelFuture.channel().closeFuture().sync();
    }/*from w  w w.jav a  2  s. com*/
}

From source file:com.example.spring.boot.netty.TcpClient.java

License:Apache License

public void connectServer() {
    for (int i = 0; i < connNum; i++) {
        EventLoopGroup group = new NioEventLoopGroup();
        try {/*from  w w  w.j  av  a  2  s  .  co  m*/
            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();
                            //p.addLast(new LoggingHandler(LogLevel.INFO));
                            p.addLast(new LineBasedFrameDecoder(1024));
                            p.addLast(new StringDecoder());
                            p.addLast(new TcpClientHandler(TcpClient.this));
                        }
                    });

            // Start the client.
            ChannelFuture f = b.connect(address.split(":")[0], Integer.parseInt(address.split(":")[1])).sync();

            // Wait until the connection is closed.
            //            f.channel().closeFuture().sync();
        } catch (Throwable e) {
            e.printStackTrace();
        } finally {
            // Shut down the event loop to terminate all threads.
            //            group.shutdownGracefully();
        }
    }
}

From source file:com.example.spring.boot.netty.TcpServer.java

License:Apache License

public void bind() {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//from www . j ava2 s . c om
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 65535).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        //p.addLast(new LoggingHandler(LogLevel.INFO));
                        p.addLast(new LineBasedFrameDecoder(1024));
                        p.addLast(new StringDecoder());
                        p.addLast(TCP_SERVER_HANDLER);
                    }
                });

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

        // Wait until the server socket is closed.
        f.channel().closeFuture().sync();
    } catch (Throwable e) {
        e.printStackTrace();
    } finally {
        // Shut down all event loops to terminate all threads.
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:com.fanavard.challenge.client.websocket.WebSocketClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    URI uri = new URI(URL);
    String scheme = uri.getScheme() == null ? "http" : uri.getScheme();
    final String host = uri.getHost() == null ? "127.0.0.1" : uri.getHost();
    final int port;
    if (uri.getPort() == -1) {
        if ("http".equalsIgnoreCase(scheme)) {
            port = 80;/*from  w  ww.  ja va 2s. c om*/
        } else if ("https".equalsIgnoreCase(scheme)) {
            port = 443;
        } else {
            port = -1;
        }
    } else {
        port = uri.getPort();
    }

    if (!"ws".equalsIgnoreCase(scheme) && !"wss".equalsIgnoreCase(scheme)) {
        System.err.println("Only WS(S) is supported.");
        return;
    }

    final boolean ssl = "wss".equalsIgnoreCase(scheme);
    final SslContext sslCtx;
    if (ssl) {
        sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
    } else {
        sslCtx = null;
    }

    EventLoopGroup group = new NioEventLoopGroup();
    try {
        // Connect with V13 (RFC 6455 aka HyBi-17). You can change it to V08 or V00.
        // If you change it to V00, ping is not supported and remember to change
        // HttpResponseDecoder to WebSocketHttpResponseDecoder in the pipeline.
        final WebSocketClientHandler handler = new WebSocketClientHandler(WebSocketClientHandshakerFactory
                .newHandshaker(uri, WebSocketVersion.V13, null, false, new DefaultHttpHeaders()));

        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
            @Override
            protected void initChannel(SocketChannel ch) {
                ChannelPipeline p = ch.pipeline();
                if (sslCtx != null) {
                    p.addLast(sslCtx.newHandler(ch.alloc(), host, port));
                }
                p.addLast(new HttpClientCodec(), new HttpObjectAggregator(8192),
                        new WebSocketClientCompressionHandler(), handler);
            }
        });

        Channel ch = b.connect(uri.getHost(), port).sync().channel();
        handler.handshakeFuture().sync();

        BufferedReader console = new BufferedReader(new InputStreamReader(System.in));
        while (true) {
            String msg = console.readLine();
            if (msg == null) {
                break;
            } else if ("bye".equals(msg.toLowerCase())) {
                ch.writeAndFlush(new CloseWebSocketFrame());
                ch.closeFuture().sync();
                break;
            } else if ("ping".equals(msg.toLowerCase())) {
                WebSocketFrame frame = new PingWebSocketFrame(
                        Unpooled.wrappedBuffer(new byte[] { 8, 1, 8, 1 }));
                ch.writeAndFlush(frame);
            } else {
                WebSocketFrame frame = new TextWebSocketFrame(msg);
                ch.writeAndFlush(frame);
            }
        }
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.farsunset.cim.sdk.client.CIMConnectorManager.java

License:Apache License

private CIMConnectorManager() {

    bootstrap = new Bootstrap();
    loopGroup = new NioEventLoopGroup();
    bootstrap.group(loopGroup);/*from  w w  w  . ja  v a2 s. c om*/
    bootstrap.channel(NioSocketChannel.class);
    bootstrap.option(ChannelOption.TCP_NODELAY, true);
    bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, CONNECT_TIMEOUT);

    bootstrap.handler(new ChannelInitializer<SocketChannel>() {
        @Override
        public void initChannel(SocketChannel ch) throws Exception {
            ChannelPipeline pipeline = ch.pipeline();
            pipeline.addLast(new ClientMessageDecoder());
            pipeline.addLast(new ClientMessageEncoder());
            pipeline.addLast(new IdleStateHandler(READ_IDLE_TIME, 0, 0));
            pipeline.addLast(CIMConnectorManager.this);

        }
    });

}