Example usage for io.netty.bootstrap ServerBootstrap group

List of usage examples for io.netty.bootstrap ServerBootstrap group

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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:com.dwarf.netty.guide.http.snoop.HttpSnoopServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {//from   ww w .  j a v a  2  s  . c o  m
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
    } else {
        sslCtx = null;
    }

    // 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();

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

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

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

License:Apache License

public static void main(String[] args) throws Exception {
    SelfSignedCertificate ssc = new SelfSignedCertificate();
    SslContext sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from  www. jav  a2s  .c o m*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new SecureChatServerInitializer(sslCtx));

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

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

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {//from  w  ww.  jav a 2s  . 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(LogLevel.INFO))
                .childHandler(new WorldClockServerInitializer(sslCtx));

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

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 ww  w. ja  v  a2  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.eightkdata.mongowp.server.wp.NettyMongoServer.java

License:Open Source License

@Override
protected void startUp() throws Exception {
    LOGGER.info("Listening MongoDB requests on port " + port);

    connectionGroup = new NioEventLoopGroup(0,
            new ThreadFactoryBuilder().setNameFormat("netty-connection-%d").build());
    workerGroup = new NioEventLoopGroup(0, new ThreadFactoryBuilder().setNameFormat("netty-worker-%d").build());

    ServerBootstrap bootstrap = new ServerBootstrap();
    bootstrap.group(connectionGroup, workerGroup).channel(NioServerSocketChannel.class)
            .childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override/*from  ww  w  .  j av a 2s .co  m*/
                protected void initChannel(SocketChannel socketChannel) throws Exception {
                    buildChildHandlerPipeline(socketChannel.pipeline());
                }
            }) // TODO: set TCP channel options?
    ;

    ChannelFuture channelFuture = bootstrap.bind(port).awaitUninterruptibly();
    if (!channelFuture.isSuccess()) {
        workerGroup.shutdownGracefully();
        connectionGroup.shutdownGracefully();
    }
}

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  va  2  s.  c o  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.grpc.server.PrometheusServer.java

License:Apache License

public void start() {
    final ServerBootstrap bootstrap = new ServerBootstrap();

    bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
            .handler(new LoggingHandler(LogLevel.INFO)).childHandler(new ChannelInitializer<SocketChannel>() {
                @Override/*from  w w  w . j ava 2 s .  c  om*/
                protected void initChannel(SocketChannel socketChannel) throws Exception {
                    ChannelPipeline pipeline = socketChannel.pipeline();
                    pipeline.addLast("decoder", new HttpRequestDecoder());
                    pipeline.addLast("encoder", new HttpResponseEncoder());
                    pipeline.addLast("prometheus", new SimpleChannelInboundHandler<Object>() {
                        @Override
                        protected void channelRead0(ChannelHandlerContext channelHandlerContext, Object o)
                                throws Exception {
                            if (!(o instanceof HttpRequest)) {
                                return;
                            }

                            HttpRequest request = (HttpRequest) o;

                            if (!"/metrics".equals(request.uri())) {
                                final FullHttpResponse response = new DefaultFullHttpResponse(
                                        HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_FOUND);
                                channelHandlerContext.writeAndFlush(response)
                                        .addListener(ChannelFutureListener.CLOSE);
                                return;
                            }

                            if (!HttpMethod.GET.equals(request.method())) {
                                final FullHttpResponse response = new DefaultFullHttpResponse(
                                        HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_ACCEPTABLE);
                                channelHandlerContext.writeAndFlush(response)
                                        .addListener(ChannelFutureListener.CLOSE);
                                return;
                            }

                            ByteBuf buf = Unpooled.buffer();
                            ByteBufOutputStream os = new ByteBufOutputStream(buf);
                            OutputStreamWriter writer = new OutputStreamWriter(os);
                            TextFormat.write004(writer, registry.metricFamilySamples());
                            writer.close();
                            os.close();

                            final FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1,
                                    HttpResponseStatus.OK, buf);
                            response.headers().set(HttpHeaderNames.CONTENT_TYPE, TextFormat.CONTENT_TYPE_004);
                            channelHandlerContext.writeAndFlush(response)
                                    .addListener(ChannelFutureListener.CLOSE);
                        }
                    });

                }
            });

    try {
        this.channel = bootstrap.bind(this.port).sync().channel();
    } catch (InterruptedException e) {
        // do nothing
    }
}

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();//from   w w w  .  j a  v  a 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   www  .j  a v  a 2s  . c o m*/
}

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 {//  www . j  a v a2  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();
    }
}