Example usage for io.netty.channel ChannelOption SO_BACKLOG

Introduction

In this page you can find the example usage for io.netty.channel ChannelOption SO_BACKLOG.

Prototype

ChannelOption SO_BACKLOG

To view the source code for io.netty.channel ChannelOption SO_BACKLOG.

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Usage

From source file:io.termd.core.telnet.netty.NettyTelnetBootstrap.java

License:Apache License

@Override
public void start(Supplier<TelnetHandler> factory, Consumer<Throwable> doneHandler) {
    ServerBootstrap boostrap = new ServerBootstrap();
    boostrap.group(group).channel(NioServerSocketChannel.class).option(ChannelOption.SO_BACKLOG, 100)
            .handler(new LoggingHandler(LogLevel.INFO)).childHandler(new ChannelInitializer<SocketChannel>() {
                @Override//ww  w.j ava  2  s. c  o  m
                public void initChannel(SocketChannel ch) throws Exception {
                    channelGroup.add(ch);
                    ChannelPipeline p = ch.pipeline();
                    TelnetChannelHandler handler = new TelnetChannelHandler(factory);
                    p.addLast(handler);
                }
            });

    boostrap.bind(getHost(), getPort()).addListener(fut -> {
        if (fut.isSuccess()) {
            doneHandler.accept(null);
        } else {
            doneHandler.accept(fut.cause());
        }
    });
}

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From source file:io.vertx.core.EventLoopGroupTest.java

License:Open Source License

@Test
public void testNettyServerUsesContextEventLoop() throws Exception {
    ContextInternal context = (ContextInternal) vertx.getOrCreateContext();
    AtomicReference<Thread> contextThread = new AtomicReference<>();
    CountDownLatch latch = new CountDownLatch(1);
    context.runOnContext(v -> {//from   ww w . j ava2  s  .c o  m
        contextThread.set(Thread.currentThread());
        latch.countDown();
    });
    awaitLatch(latch);
    ServerBootstrap bs = new ServerBootstrap();
    bs.group(context.nettyEventLoop());
    bs.channelFactory(((VertxInternal) vertx).transport().serverChannelFactory(false));
    bs.option(ChannelOption.SO_BACKLOG, 100);
    bs.childHandler(new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            assertSame(contextThread.get(), Thread.currentThread());
            context.executeFromIO(v -> {
                assertSame(contextThread.get(), Thread.currentThread());
                assertSame(context, Vertx.currentContext());
                ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
                    @Override
                    public void channelActive(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(v -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                        });
                    }

                    @Override
                    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                        ByteBuf buf = (ByteBuf) msg;
                        assertEquals("hello", buf.toString(StandardCharsets.UTF_8));
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(v -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                        });
                    }

                    @Override
                    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(v -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                            ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
                        });
                    }

                    @Override
                    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(v -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                            testComplete();
                        });
                    }

                    @Override
                    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
                        fail(cause.getMessage());
                    }
                });
            });
        }
    });
    ChannelFuture fut = bs.bind("localhost", 1234);
    try {
        fut.sync();
        vertx.createNetClient(new NetClientOptions()).connect(1234, "localhost", ar -> {
            assertTrue(ar.succeeded());
            NetSocket so = ar.result();
            so.write(Buffer.buffer("hello"));
        });
        await();
    } finally {
        fut.channel().close().sync();
    }
}

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From source file:io.vertx.core.net.impl.NetServerBase.java

License:Open Source License

/**
 * Apply the connection option to the server.
 *
 * @param bootstrap the Netty server bootstrap
 *//*  ww w  . j  a  v a  2  s  .  com*/
protected void applyConnectionOptions(ServerBootstrap bootstrap) {
    bootstrap.childOption(ChannelOption.TCP_NODELAY, options.isTcpNoDelay());
    if (options.getSendBufferSize() != -1) {
        bootstrap.childOption(ChannelOption.SO_SNDBUF, options.getSendBufferSize());
    }
    if (options.getReceiveBufferSize() != -1) {
        bootstrap.childOption(ChannelOption.SO_RCVBUF, options.getReceiveBufferSize());
        bootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR,
                new FixedRecvByteBufAllocator(options.getReceiveBufferSize()));
    }
    if (options.getSoLinger() != -1) {
        bootstrap.option(ChannelOption.SO_LINGER, options.getSoLinger());
    }
    if (options.getTrafficClass() != -1) {
        bootstrap.childOption(ChannelOption.IP_TOS, options.getTrafficClass());
    }
    bootstrap.childOption(ChannelOption.ALLOCATOR, PartialPooledByteBufAllocator.INSTANCE);

    bootstrap.childOption(ChannelOption.SO_KEEPALIVE, options.isTcpKeepAlive());
    bootstrap.option(ChannelOption.SO_REUSEADDR, options.isReuseAddress());
    if (options.getAcceptBacklog() != -1) {
        bootstrap.option(ChannelOption.SO_BACKLOG, options.getAcceptBacklog());
    }
}

---

From source file:io.vertx.core.net.impl.transport.Transport.java

License:Open Source License

public void configure(NetServerOptions options, ServerBootstrap bootstrap) {
    bootstrap.childOption(ChannelOption.TCP_NODELAY, options.isTcpNoDelay());
    if (options.getSendBufferSize() != -1) {
        bootstrap.childOption(ChannelOption.SO_SNDBUF, options.getSendBufferSize());
    }//from w ww . java 2 s.c  o m
    if (options.getReceiveBufferSize() != -1) {
        bootstrap.childOption(ChannelOption.SO_RCVBUF, options.getReceiveBufferSize());
        bootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR,
                new FixedRecvByteBufAllocator(options.getReceiveBufferSize()));
    }
    if (options.getSoLinger() != -1) {
        bootstrap.childOption(ChannelOption.SO_LINGER, options.getSoLinger());
    }
    if (options.getTrafficClass() != -1) {
        bootstrap.childOption(ChannelOption.IP_TOS, options.getTrafficClass());
    }
    bootstrap.childOption(ChannelOption.ALLOCATOR, PartialPooledByteBufAllocator.INSTANCE);
    bootstrap.childOption(ChannelOption.SO_KEEPALIVE, options.isTcpKeepAlive());
    bootstrap.option(ChannelOption.SO_REUSEADDR, options.isReuseAddress());
    if (options.getAcceptBacklog() != -1) {
        bootstrap.option(ChannelOption.SO_BACKLOG, options.getAcceptBacklog());
    }
}

---

From source file:io.vertx.test.core.EventLoopGroupTest.java

License:Open Source License

@Test
public void testNettyServerUsesContextEventLoop() throws Exception {
    ContextInternal context = (ContextInternal) vertx.getOrCreateContext();
    AtomicReference<Thread> contextThread = new AtomicReference<>();
    CountDownLatch latch = new CountDownLatch(1);
    context.runOnContext(v -> {// w  ww.  ja va  2s.c o m
        contextThread.set(Thread.currentThread());
        latch.countDown();
    });
    awaitLatch(latch);
    ServerBootstrap bs = new ServerBootstrap();
    bs.group(context.nettyEventLoop());
    bs.channel(NioServerSocketChannel.class);
    bs.option(ChannelOption.SO_BACKLOG, 100);
    bs.childHandler(new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            assertSame(contextThread.get(), Thread.currentThread());
            context.executeFromIO(() -> {
                assertSame(contextThread.get(), Thread.currentThread());
                assertSame(context, Vertx.currentContext());
                ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
                    @Override
                    public void channelActive(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(() -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                        });
                    }

                    @Override
                    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                        ByteBuf buf = (ByteBuf) msg;
                        assertEquals("hello", buf.toString(StandardCharsets.UTF_8));
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(() -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                        });
                    }

                    @Override
                    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(() -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                            ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
                        });
                    }

                    @Override
                    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(() -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                            testComplete();
                        });
                    }

                    @Override
                    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
                        fail(cause.getMessage());
                    }
                });
            });
        }
    });
    bs.bind("localhost", 1234).sync();
    vertx.createNetClient(new NetClientOptions()).connect(1234, "localhost", ar -> {
        assertTrue(ar.succeeded());
        NetSocket so = ar.result();
        so.write(Buffer.buffer("hello"));
    });
    await();
}

---

From source file:ipLock.SignalServer.java

License:Open Source License

public void start(final int port) throws InterruptedException {
    synchronized (this) {
        if (running) {
            throw new IllegalStateException("signal server already running");
        }/*from ww w .j  a v  a 2s  .co m*/

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

        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new SignalChannelInitializer()).option(ChannelOption.SO_BACKLOG, 128)
                .childOption(ChannelOption.SO_KEEPALIVE, true);

        // Bind and start to accept incoming connections.
        b.bind(port).sync();

        LOGGER.info("signal server listening on tcp://localhost:{}", port);
        running = true;
    }
}

---

From source file:it.jnrpe.JNRPE.java

License:Apache License

/**
 * Creates and returns a configured NETTY ServerBootstrap object.
 * //from w w w  .java  2 s .com
 * @param useSSL
 *            <code>true</code> if SSL must be used.
        
 * @return the server bootstrap object */
private ServerBootstrap getServerBootstrap(final boolean useSSL) {

    final CommandInvoker invoker = new CommandInvoker(pluginRepository, commandRepository, acceptParams,
            getExecutionContext());

    final ServerBootstrap serverBootstrap = new ServerBootstrap();
    serverBootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(final SocketChannel ch) throws Exception {

                    if (useSSL) {
                        final SSLEngine engine = getSSLEngine();
                        engine.setEnabledCipherSuites(engine.getSupportedCipherSuites());
                        engine.setUseClientMode(false);
                        engine.setNeedClientAuth(false);
                        ch.pipeline().addLast("ssl", new SslHandler(engine));
                    }

                    ch.pipeline()
                            .addLast(new JNRPERequestDecoder(), new JNRPEResponseEncoder(),
                                    new JNRPEServerHandler(invoker, context))
                            .addLast("idleStateHandler", new IdleStateHandler(readTimeout, writeTimeout, 0))
                            .addLast("jnrpeIdleStateHandler", new JNRPEIdleStateHandler(context));
                }
            }).option(ChannelOption.SO_BACKLOG, maxAcceptedConnections)
            .childOption(ChannelOption.SO_KEEPALIVE, Boolean.TRUE);

    return serverBootstrap;
}

---

From source file:itlab.teleport.HttpServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    File_config.Read_ini();//from w w  w .ja  va2  s . co m
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
    } else {
        sslCtx = null;
    }

    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    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 HttpServerInitializer(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:james.learn.netty.echo.EchoServer.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  a2  s  .c om
    //    SelfSignedCertificate ssc = new SelfSignedCertificate();
    //    sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
    //} 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)
                .option(ChannelOption.SO_BACKLOG, 100).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        //                     if (sslCtx != null) {
                        //                         p.addLast(sslCtx.newHandler(ch.alloc()));
                        //                     }
                        //p.addLast(new LoggingHandler(LogLevel.INFO));
                        p.addLast(new EchoServerHandler());
                    }
                });

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

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

---

From source file:james.learn.netty.echo2.EchoServer.java

License:Apache License

public void bind(int port) throws Exception {
    // ??NIO//  ww w.ja  v  a2s .  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, 100).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        /*ByteBuf delimiter = Unpooled.copiedBuffer("$_"
                           .getBytes());
                        ch.pipeline().addLast(
                           new DelimiterBasedFrameDecoder(1024,
                              delimiter));*/
                        ch.pipeline().addLast(new LengthFieldBasedFrameDecoder(1024 * 1024, 0, 4));
                        ch.pipeline().addLast(new LengthFieldPrepender(4, false));
                        ch.pipeline().addLast(new StringDecoder());
                        ch.pipeline().addLast(new EchoServerHandler());
                    }
                });

        // ???
        ChannelFuture f = b.bind(port).sync();

        // ???
        f.channel().closeFuture().sync();
    } finally {
        // ?
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

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