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

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.grillecube.client.network.ClientNetwork.java

public void start(String host, int port) throws Exception {
    this.workerGroup = new NioEventLoopGroup();
    this.bootstrap = new Bootstrap(); // (1)
    this.bootstrap.group(this.workerGroup); // (2)
    this.bootstrap.channel(NioSocketChannel.class); // (3)
    this.bootstrap.option(ChannelOption.SO_KEEPALIVE, true); // (4)
    this.bootstrap.handler(new ChannelInitializer<SocketChannel>() {
        @Override/*  w w w .j  a v a2  s.  co  m*/
        public void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline().addLast(new TimeClientHandler());
        }
    });

    // Start the client.
    try {
        this.channel = this.bootstrap.connect(host, port).sync(); // (5)
    } catch (Exception exception) {
        // args are: quiettime, timeout, time unit
        this.workerGroup.shutdownGracefully(0, 10, TimeUnit.SECONDS);
        Logger.get().log(Level.ERROR, "Couldnt connect to host: " + host + ":" + port);
        exception.printStackTrace(Logger.get().getPrintStream());

        this.bootstrap = null;
        this.channel = null;
        this.workerGroup = null;
    }
}

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From source file:com.grillecube.engine.network.client.ClientNetwork.java

public void start(String host, int port) throws Exception {
    this._workergroup = new NioEventLoopGroup();
    this._bootstrap = new Bootstrap(); // (1)
    this._bootstrap.group(this._workergroup); // (2)
    this._bootstrap.channel(NioSocketChannel.class); // (3)
    this._bootstrap.option(ChannelOption.SO_KEEPALIVE, true); // (4)
    this._bootstrap.handler(new ChannelInitializer<SocketChannel>() {
        @Override/*from   w ww.j a  v  a 2 s .  co  m*/
        public void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline().addLast(new TimeClientHandler());
        }
    });

    // Start the client.
    try {
        this._channel = this._bootstrap.connect(host, port).sync(); // (5)
    } catch (Exception exception) {
        // args are: quiettime, timeout, time unit
        this._workergroup.shutdownGracefully(0, 10, TimeUnit.SECONDS);
        Logger.get().log(Level.ERROR, "Couldnt connect to host: " + host + ":" + port);
        exception.printStackTrace(Logger.get().getPrintStream());

        this._bootstrap = null;
        this._channel = null;
        this._workergroup = null;
    }
}

---

From source file:com.grillecube.engine.network.server.ServerNetwork.java

public void start() throws Exception {
    this._bossgroup = new NioEventLoopGroup();
    this._workergroup = new NioEventLoopGroup();
    this._bootstrap = new ServerBootstrap();
    this._bootstrap.group(this._bossgroup, this._workergroup);
    this._bootstrap.channel(NioServerSocketChannel.class);
    this._bootstrap.childHandler(this);
    this._bootstrap.option(ChannelOption.SO_BACKLOG, 128);
    this._bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true);

    // Bind and start to accept incoming connections.
    this._channel = this._bootstrap.bind(this._port).sync(); // (7)
    Logger.get().log(Level.FINE, "Listening on " + this._port);
    this.stop();//w w w .j  a va  2s. c  o  m
}

---

From source file:com.grillecube.server.network.ServerNetwork.java

public void start() throws Exception {
    this.bossgroup = new NioEventLoopGroup();
    this.workergroup = new NioEventLoopGroup();
    this.bootstrap = new ServerBootstrap();
    this.bootstrap.group(this.bossgroup, this.workergroup);
    this.bootstrap.channel(NioServerSocketChannel.class);
    this.bootstrap.childHandler(this);
    this.bootstrap.option(ChannelOption.SO_BACKLOG, 128);
    this.bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true);

    // Bind and start to accept incoming connections.
    this.channel = this.bootstrap.bind(this.port).sync(); // (7)
    Logger.get().log(Level.FINE, "Listening on " + this.port);
    this.stop();/*from w  w w  .  j a v  a 2  s .c  o m*/
}

---

From source file:com.guowl.websocket.client.WebSocketClientRunner.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from   www . j a  v  a  2  s .c  o m*/
        // 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()));

        final String protocol = uri.getScheme();
        int defaultPort;
        ChannelInitializer<SocketChannel> initializer;

        // Normal WebSocket
        if ("ws".equals(protocol)) {
            initializer = new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast("http-codec", new HttpClientCodec())
                            .addLast("aggregator", new HttpObjectAggregator(8192))
                            .addLast("ws-handler", handler);
                }
            };

            defaultPort = 80;
            // Secure WebSocket
        } else if ("wss".equals(protocol)) {
            initializer = new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel ch) throws Exception {
                    SSLEngine engine = WebSocketSslClientContextFactory.getContext().createSSLEngine();
                    engine.setUseClientMode(true);

                    ch.pipeline().addFirst("ssl", new SslHandler(engine))
                            .addLast("http-codec", new HttpClientCodec())
                            .addLast("aggregator", new HttpObjectAggregator(8192))
                            .addLast("ws-handler", handler);
                }
            };

            defaultPort = 443;
        } else {
            throw new IllegalArgumentException("Unsupported protocol: " + protocol);
        }

        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(initializer);

        int port = uri.getPort();
        // If no port was specified, we'll try the default port: https://tools.ietf.org/html/rfc6455#section-1.7
        if (uri.getPort() == -1) {
            port = defaultPort;
        }

        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.copiedBuffer(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.guowl.websocket.stream.client.StreamClientRunner.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from w w w  .j  a v  a 2  s. com*/
        // 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 StreamClientHandler handler = new StreamClientHandler(WebSocketClientHandshakerFactory
                .newHandshaker(uri, WebSocketVersion.V13, null, false, new DefaultHttpHeaders()));

        final String protocol = uri.getScheme();
        int defaultPort;
        ChannelInitializer<SocketChannel> initializer;

        // Normal WebSocket
        if ("ws".equals(protocol)) {
            initializer = new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast("http-codec", new HttpClientCodec())
                            .addLast("aggregator", new HttpObjectAggregator(8192))
                            .addLast("ws-handler", handler);
                }
            };

            defaultPort = 80;
            // Secure WebSocket
        } else {
            throw new IllegalArgumentException("Unsupported protocol: " + protocol);
        }

        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(initializer);

        int port = uri.getPort();
        // If no port was specified, we'll try the default port:
        if (uri.getPort() == -1) {
            port = defaultPort;
        }

        Channel ch = b.connect(uri.getHost(), port).sync().channel();
        handler.handshakeFuture().sync();
        ByteBuf dataBuf = ch.alloc().buffer();
        dataBuf.writeBytes("start".getBytes());
        ch.writeAndFlush(new BinaryWebSocketFrame(false, 0, dataBuf));
        ch.writeAndFlush(new ContinuationWebSocketFrame(true, 0, "end"));
        Thread.sleep(1000 * 60 * 60);
    } finally {
        group.shutdownGracefully();
    }
}

---

From source file:com.gw.monitor.alphaenvmonitor.monitor.MonitorClient.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from  w  w w  .  j  av a  2s.  c o  m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new MonitorClientInitializer());

        // 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.gw.monitor.alphaenvmonitor.monitor.MonitorServer.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from   ww  w. j a  v  a  2 s.c  om*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new MonitorServerInitializer());

        b.bind(port).sync().channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:com.gw.services.client.HttpsClient.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();
    String host = uri.getHost() == null ? "127.0.0.1" : uri.getHost();
    int port = uri.getPort();
    if (port == -1) {
        if ("http".equalsIgnoreCase(scheme)) {
            port = 80;//from   w w  w . ja v a2 s. c  o  m
        } else if ("https".equalsIgnoreCase(scheme)) {
            port = 443;
        }
    }

    if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)) {
        System.err.println("Only HTTP(S) is supported.");
        return;
    }

    // Configure SSL context if necessary.
    final boolean ssl = "https".equalsIgnoreCase(scheme);
    final SSLContext sslCtx;
    if (ssl) {
        sslCtx = CLIENT_CONTEXT;
    } else {
        sslCtx = null;
    }

    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new HttpsClientInitializer(sslCtx));

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

        String requestBody = "{\"productId\": 11,\"userName\": \"caiwei\",\"amount\": 1000}";
        ByteBuf content = Unpooled.copiedBuffer(requestBody.getBytes(CharsetUtil.UTF_8));
        // Prepare the HTTP request.
        HttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST,
                uri.getRawPath(), content);
        request.headers().set(HttpHeaders.Names.HOST, host);
        request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
        request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);

        request.headers().set(HttpHeaders.Names.CONTENT_TYPE, "application/json");
        request.headers().set(HttpHeaders.Names.CONTENT_LENGTH, content.readableBytes());
        // Set some example cookies.
        request.headers().set(HttpHeaders.Names.COOKIE, ClientCookieEncoder
                .encode(new DefaultCookie("my-cookie", "foo"), new DefaultCookie("another-cookie", "bar")));
        // Send the HTTP request.
        ch.writeAndFlush(request);

        // Wait for the server to close the connection.
        ch.closeFuture().sync();
    } finally {
        // Shut down executor threads to exit.
        group.shutdownGracefully();
    }
}

---

From source file:com.gxkj.demo.netty.discard.DiscardClient.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//from ww  w  .  ja v  a2 s  .c  o m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new DiscardClientHandler(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();
    }
}

---

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