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.dinstone.rpc.netty.server.NettyServer.java

License:Apache License

public void start() {
    bossGroup = new NioEventLoopGroup();
    workerGroup = new NioEventLoopGroup();
    try {// w  ww .j a  v a2  s  . c  o m
        ServerBootstrap boot = new ServerBootstrap();
        boot.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new RpcProtocolDecoder(true));
                        ch.pipeline().addLast(new RpcProtocolEncoder(true));
                        ch.pipeline().addLast(new NettyServerHandler(handler));
                    }
                });
        boot.option(ChannelOption.SO_BACKLOG, 128);
        boot.childOption(ChannelOption.SO_KEEPALIVE, true);

        int port = config.getInt(Constants.SERVICE_PORT, Constants.DEFAULT_SERVICE_PORT);
        InetSocketAddress localAddress = new InetSocketAddress(port);
        String host = config.get(Constants.SERVICE_HOST);
        if (host != null) {
            localAddress = new InetSocketAddress(host, port);
        }
        LOG.info("RPC service works on " + localAddress);

        boot.bind(localAddress).sync();
    } catch (InterruptedException e) {
        throw new RpcException(500, "Server can't bind to the specified local address ", e);
    }
}

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From source file:com.diozero.internal.provider.remote.voodoospark.VoodooSparkProtocolHandler.java

License:Open Source License

private void connect(String host, int port) throws InterruptedException {
    workerGroup = new NioEventLoopGroup();

    ResponseHandler rh = new ResponseHandler(this::messageReceived);

    Bootstrap b1 = new Bootstrap();
    b1.group(workerGroup).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
        @Override/* w  w  w  .j  a va  2  s  . c o m*/
        public void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline().addLast(new ResponseDecoder(), new MessageEncoder(), rh);
        }
    });

    // Connect
    messageChannel = b1.connect(host, port).sync().channel();
}

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From source file:com.doctor.netty5.ebook.netty_the_definitive_guide.Chapter4ForTimerClient.java

License:Apache License

public void connect(String host, int port) throws InterruptedException {
    EventLoopGroup group = new NioEventLoopGroup();
    try {// ww  w.  j  a  va2 s.c  o m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new LineBasedFrameDecoder(2014));
                        ch.pipeline().addLast(new StringDecoder());
                        ch.pipeline().addLast(new TimeClientHander());

                    }
                });

        ChannelFuture f = b.connect(host, port).sync();
        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }

}

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From source file:com.doctor.netty5.ebook.netty_the_definitive_guide.Chapter4ForTimerServer.java

License:Apache License

public void bind(int port) throws InterruptedException {
    // ??NIO//from w w w .  j  a  va 2s  .  co m
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 1024).childHandler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new LineBasedFrameDecoder(1024));
                        ch.pipeline().addLast(new StringDecoder());
                        ch.pipeline().addLast(new TimeServerHander());

                    }
                });

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

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From source file:com.doctor.netty5.ebook.netty_the_definitive_guide.TimerClient.java

License:Apache License

public void connect(String host, int port) throws InterruptedException {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*w w w  .j  a  v  a2s  .c  om*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new TimeClientHander());

                    }
                });

        ChannelFuture f = b.connect(host, port).sync();
        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }

}

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From source file:com.doctor.netty5.ebook.netty_the_definitive_guide.TimeServer.java

License:Apache License

public void bind(int port) throws InterruptedException {
    // ??NIO//from w  ww .j a va  2  s.c  om
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 1024).childHandler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new TimeServerHander());

                    }
                });

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

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From source file:com.dwarf.netty.guide.factorial.FactorialClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {/*w ww .j  a v a 2s .  c  om*/
        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 FactorialClientInitializer(sslCtx));

        // Make a new connection.
        ChannelFuture f = b.connect(HOST, PORT).sync();

        // Get the handler instance to retrieve the answer.
        FactorialClientHandler handler = (FactorialClientHandler) f.channel().pipeline().last();

        // Print out the answer.
        System.err.format("Factorial of %,d is: %,d", COUNT, handler.getFactorial());
    } finally {
        group.shutdownGracefully();
    }
}

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From source file:com.dwarf.netty.guide.http.snoop.HttpSnoopClient.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   ww  w  . j  a  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 = 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).handler(new HttpSnoopClientInitializer(sslCtx));

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

        // Prepare the HTTP request.
        HttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET,
                uri.getRawPath());
        request.headers().set(HttpHeaderNames.HOST, host);
        request.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE);
        request.headers().set(HttpHeaderNames.ACCEPT_ENCODING, HttpHeaderValues.GZIP);

        // Set some example cookies.
        request.headers().set(HttpHeaderNames.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();
    }
}

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From source file:com.dwarf.netty.guide.securechat.SecureChatClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);

    EventLoopGroup group = new NioEventLoopGroup();
    try {//from  ww  w  . ja  v  a  2s.com
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new SecureChatClientInitializer(sslCtx));

        // 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 {
        // The connection is closed automatically on shutdown.
        group.shutdownGracefully();
    }
}

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From source file:com.dwarf.netty.guide.worldclock.WorldClockClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {/*w w w  .ja  v a 2  s  .c om*/
        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 WorldClockClientInitializer(sslCtx));

        // Make a new connection.
        Channel ch = b.connect(HOST, PORT).sync().channel();

        // Get the handler instance to initiate the request.
        WorldClockClientHandler handler = ch.pipeline().get(WorldClockClientHandler.class);

        // Request and get the response.
        List<String> response = handler.getLocalTimes(CITIES);

        // Close the connection.
        ch.close();

        // Print the response at last but not least.
        for (int i = 0; i < CITIES.size(); i++) {
            System.out.format("%28s: %s%n", CITIES.get(i), response.get(i));
        }
    } finally {
        group.shutdownGracefully();
    }
}

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