Example usage for io.netty.bootstrap ServerBootstrap group

Introduction

In this page you can find the example usage for io.netty.bootstrap ServerBootstrap group.

Prototype

public ServerBootstrap group(EventLoopGroup parentGroup, EventLoopGroup childGroup) 

Source Link

Document

Set the EventLoopGroup for the parent (acceptor) and the child (client).

Usage

From source file:MyNettyServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {// w ww  . ja  v a2  s  .  c om
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
    } else {
        sslCtx = null;
    }

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).handler(new LoggingHandler())
                .childHandler(new ServerInitializer(sslCtx));

        Channel ch = b.bind(PORT).sync().channel();

        System.out.println("Open your web browser and navigate to " + (SSL ? "https" : "http") + "://127.0.0.1:"
                + PORT + '/');

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

}

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From source file:nwses.java

License:Open Source License

/**
 * Main/* w w  w  . j a  va 2 s  .  c om*/
 * @param args Optional command-line parameters for server port and tag
 * @throws Exception 
 */
public static void main(String[] args) throws Exception {
    final int port;
    final String tag;

    boolean SSL = false;

    if (args.length == 0) {
        port = 80;
        tag = "server1";
    } else if (args.length == 1) {
        if (isValidPortNumber(args[0])) {
            port = Integer.parseInt(args[0]);
            tag = "server1";
        } else {
            return;
        }
    } else {
        if (isValidPortNumber(args[0])) {
            port = Integer.parseInt(args[0]);
            tag = args[1];
        } else {
            return;
        }

    }

    // If port 443 is specified to be used, use SSL.
    if (port == 443) {
        SSL = true;
        System.out.println("Websocket secure connection server initialized.");
    }

    final SslContext sslCtx;
    if (SSL) {
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
    } else {
        sslCtx = null;
    }

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.TRACE))
                .childHandler(new WebSocketServerInitializer(sslCtx, tag));

        System.out.println("Server: " + tag + " started at port: " + port + " \n");

        Channel chnl = b.bind(port).sync().channel();
        chnl.closeFuture().sync();

    } catch (Exception e) { //Catch exceptions e.g. trying to open second server on same port
        System.err.println("Caught exception: " + e.getMessage());
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
        System.out.println("Server closed..");
    }
}

---

From source file:HttpSnoopServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    SslContext sslCtx = null;/*w w w .  j av  a2s .  co m*/

    try {
        File certChainFile = new File("/Users/hyecheon/netty.cst");
        File keyFile = new File("/Users/hyecheon/privatekey.pem");
        keyFile.exists();
        sslCtx = SslContext.newServerContext(certChainFile, keyFile, "HELLO");
    } catch (SSLException e) {
        e.printStackTrace();
        System.out.println("Can not create SSL context! \n Server will be stop!");
    }

    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new HttpSnoopServerInitializer(sslCtx));

        Channel ch = b.bind(PORT).sync().channel();

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

---

From source file:WorldClockServer.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  2s  .  c om*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new WorldClockServerInitializer());

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

---

From source file:HttpUploadServer.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//  w ww .j  a v a2 s. c  o  m
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new HttpUploadServerInitializer());

        Channel ch = b.bind(port).sync().channel();
        System.out.println("HTTP Upload Server at port " + port + '.');
        System.out.println("Open your browser and navigate to http://localhost:" + port + '/');

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

---

From source file:HttpRouterServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    Router<String> router = new Router<String>().GET(PUBLIC_DIR + ":id", "public").GET("/", "index")
            .GET(PUBLIC_DIR, "index")
            //            .GET("/image", "base64")
            //            .GET("/img", "image")
            //            .GET("/",             "Index page")
            //            .GET("/articles/:id", "Article show page")
            .notFound("404 Not Found");
    System.out.println(router);//from w  w  w.  jav  a 2s.  c  o m

    NioEventLoopGroup bossGroup = new NioEventLoopGroup(1);
    NioEventLoopGroup workerGroup = new NioEventLoopGroup();

    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).childOption(ChannelOption.TCP_NODELAY, java.lang.Boolean.TRUE)
                .childOption(ChannelOption.SO_KEEPALIVE, java.lang.Boolean.TRUE)
                .channel(NioServerSocketChannel.class).childHandler(new HttpRouterServerInitializer(router));

        Channel ch = b.bind(PORT).sync().channel();
        System.out.println("Server started: http://127.0.0.1:" + PORT + '/');

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

---

From source file:Http2Server.java

License:Apache License

public static void main(String... args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {//from ww  w . ja  v  a 2 s .c  o m
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey(), null, null,
                Arrays.asList(SelectedProtocol.HTTP_2.protocolName(), SelectedProtocol.HTTP_1_1.protocolName()),
                0, 0);
    } else {
        sslCtx = null;
    }
    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup(1);
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO)).childHandler(new Http2ServerInitializer(sslCtx));

        Channel ch = b.bind(PORT).sync().channel();

        System.err.println("Open your HTTP/2-enabled web browser and navigate to " + (SSL ? "https" : "http")
                + "://127.0.0.1:" + PORT + '/');

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

---

From source file:adalightserver.http.HttpServer.java

License:Apache License

public void start() {
    ServerBootstrap bootStrap = new ServerBootstrap();
    bootStrap.group(bossGroup, clientGroup).channel(NioServerSocketChannel.class)
            .childHandler(new ServerInitializer(null));

    try {// www .  j  a  v a  2  s  . c o m
        channel = bootStrap.bind(8081).sync().channel();
    } catch (InterruptedException e) {
    }

    // Listen to the state and send it to all connected clients
    stateSub = ledController.stateChanged().observeOn(scheduler).subscribe(state -> {
        lastState = state;
        wsConnections.writeAndFlush(makeWebSocketEventFrame("stateChanged", state));
    });
}

---

From source file:afred.javademo.proxy.rpc.ObjectEchoServer.java

License:Apache License

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

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//  w w  w.  j  a v a 2 s. c om
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new ObjectEncoder(), new ObjectDecoder(ClassResolvers.cacheDisabled(null)),
                                new ObjectEchoServerHandler());
                    }
                });

        // Bind and start to accept incoming connections.
        b.bind(8080).sync().channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:alluxio.worker.netty.NettyDataServer.java

License:Apache License

/**
 * Creates a default {@link io.netty.bootstrap.ServerBootstrap} where the channel and groups are
 * preset.//  w w w  .  j a v a 2 s .  c  o  m
 *
 * @param type the channel type; current channel types supported are nio and epoll
 * @return an instance of {@code ServerBootstrap}
 */
private ServerBootstrap createBootstrapOfType(final ChannelType type) {
    final ServerBootstrap boot = new ServerBootstrap();
    final int bossThreadCount = Configuration.getInt(PropertyKey.WORKER_NETWORK_NETTY_BOSS_THREADS);
    // If number of worker threads is 0, Netty creates (#processors * 2) threads by default.
    final int workerThreadCount = Configuration.getInt(PropertyKey.WORKER_NETWORK_NETTY_WORKER_THREADS);
    final EventLoopGroup bossGroup = NettyUtils.createEventLoop(type, bossThreadCount, "data-server-boss-%d",
            false);
    final EventLoopGroup workerGroup = NettyUtils.createEventLoop(type, workerThreadCount,
            "data-server-worker-%d", false);

    final Class<? extends ServerChannel> socketChannelClass = NettyUtils.getServerChannelClass(type);
    boot.group(bossGroup, workerGroup).channel(socketChannelClass);

    return boot;
}

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