Examples with ServerBootstrap io.netty.bootstrap.ServerBootstrap used on opensource projects

Example 1 with ServerBootstrap

use of io.netty.bootstrap.ServerBootstrap in project camel by apache.

the class LumberjackServer method start.

/**
     * Starts the server.
     *
     * @throws InterruptedException when interrupting while connecting the socket
     */
public void start() throws InterruptedException {
    LOG.info("Starting the LUMBERJACK server (host={}, port={}).", host, port);
    // Create the group that will listen for incoming connections
    bossGroup = new NioEventLoopGroup(1);
    // Create the group that will process the connections
    workerGroup = new NioEventLoopGroup(WORKER_THREADS);
    // Create the executor service that will process the payloads without blocking netty threads
    executorService = new DefaultEventExecutorGroup(WORKER_THREADS, threadFactory);
    // Create the channel initializer
    ChannelHandler initializer = new LumberjackChannelInitializer(sslContext, executorService, messageProcessor);
    // Bootstrap the netty server
    ServerBootstrap serverBootstrap = //
    new ServerBootstrap().group(bossGroup, //
    workerGroup).channel(//
    NioServerSocketChannel.class).option(ChannelOption.SO_BACKLOG, //
    100).childHandler(//
    initializer);
    // Connect the socket
    channel = serverBootstrap.bind(host, port).sync().channel();
    LOG.info("LUMBERJACK server is started (host={}, port={}).", host, port);
}

Example 2 with ServerBootstrap

use of io.netty.bootstrap.ServerBootstrap in project flink by apache.

the class NettyConnectionManagerTest method testManualConfiguration.

/**
	 * Tests that the number of arenas and threads can be configured manually.
	 */
@Test
public void testManualConfiguration() throws Exception {
    // Expected numbers
    int numberOfArenas = 1;
    int numberOfClientThreads = 3;
    int numberOfServerThreads = 4;
    // Expected number of threads
    Configuration flinkConfig = new Configuration();
    flinkConfig.setInteger(NettyConfig.NUM_ARENAS, numberOfArenas);
    flinkConfig.setInteger(NettyConfig.NUM_THREADS_CLIENT, 3);
    flinkConfig.setInteger(NettyConfig.NUM_THREADS_SERVER, 4);
    NettyConfig config = new NettyConfig(InetAddress.getLocalHost(), NetUtils.getAvailablePort(), 1024, 1337, flinkConfig);
    NettyConnectionManager connectionManager = new NettyConnectionManager(config);
    connectionManager.start(mock(ResultPartitionProvider.class), mock(TaskEventDispatcher.class), mock(NetworkBufferPool.class));
    assertEquals(numberOfArenas, connectionManager.getBufferPool().getNumberOfArenas());
    {
        // Client event loop group
        Bootstrap boostrap = connectionManager.getClient().getBootstrap();
        EventLoopGroup group = boostrap.group();
        Field f = group.getClass().getSuperclass().getSuperclass().getDeclaredField("children");
        f.setAccessible(true);
        Object[] eventExecutors = (Object[]) f.get(group);
        assertEquals(numberOfClientThreads, eventExecutors.length);
    }
    {
        // Server event loop group
        ServerBootstrap bootstrap = connectionManager.getServer().getBootstrap();
        EventLoopGroup group = bootstrap.group();
        Field f = group.getClass().getSuperclass().getSuperclass().getDeclaredField("children");
        f.setAccessible(true);
        Object[] eventExecutors = (Object[]) f.get(group);
        assertEquals(numberOfServerThreads, eventExecutors.length);
    }
    {
        // Server child event loop group
        ServerBootstrap bootstrap = connectionManager.getServer().getBootstrap();
        EventLoopGroup group = bootstrap.childGroup();
        Field f = group.getClass().getSuperclass().getSuperclass().getDeclaredField("children");
        f.setAccessible(true);
        Object[] eventExecutors = (Object[]) f.get(group);
        assertEquals(numberOfServerThreads, eventExecutors.length);
    }
}

Example 3 with ServerBootstrap

use of io.netty.bootstrap.ServerBootstrap in project flink by apache.

the class NettyConnectionManagerTest method testMatchingNumberOfArenasAndThreadsAsDefault.

/**
	 * Tests that the number of arenas and number of threads of the client and
	 * server are set to the same number, that is the number of configured
	 * task slots.
	 */
@Test
public void testMatchingNumberOfArenasAndThreadsAsDefault() throws Exception {
    // Expected number of arenas and threads
    int numberOfSlots = 2;
    NettyConfig config = new NettyConfig(InetAddress.getLocalHost(), NetUtils.getAvailablePort(), 1024, numberOfSlots, new Configuration());
    NettyConnectionManager connectionManager = new NettyConnectionManager(config);
    connectionManager.start(mock(ResultPartitionProvider.class), mock(TaskEventDispatcher.class), mock(NetworkBufferPool.class));
    assertEquals(numberOfSlots, connectionManager.getBufferPool().getNumberOfArenas());
    {
        // Client event loop group
        Bootstrap boostrap = connectionManager.getClient().getBootstrap();
        EventLoopGroup group = boostrap.group();
        Field f = group.getClass().getSuperclass().getSuperclass().getDeclaredField("children");
        f.setAccessible(true);
        Object[] eventExecutors = (Object[]) f.get(group);
        assertEquals(numberOfSlots, eventExecutors.length);
    }
    {
        // Server event loop group
        ServerBootstrap bootstrap = connectionManager.getServer().getBootstrap();
        EventLoopGroup group = bootstrap.group();
        Field f = group.getClass().getSuperclass().getSuperclass().getDeclaredField("children");
        f.setAccessible(true);
        Object[] eventExecutors = (Object[]) f.get(group);
        assertEquals(numberOfSlots, eventExecutors.length);
    }
    {
        // Server child event loop group
        ServerBootstrap bootstrap = connectionManager.getServer().getBootstrap();
        EventLoopGroup group = bootstrap.childGroup();
        Field f = group.getClass().getSuperclass().getSuperclass().getDeclaredField("children");
        f.setAccessible(true);
        Object[] eventExecutors = (Object[]) f.get(group);
        assertEquals(numberOfSlots, eventExecutors.length);
    }
}

Example 4 with ServerBootstrap

use of io.netty.bootstrap.ServerBootstrap in project flink by apache.

the class NettyServer method init.

void init(final NettyProtocol protocol, NettyBufferPool nettyBufferPool) throws IOException {
    checkState(bootstrap == null, "Netty server has already been initialized.");
    long start = System.currentTimeMillis();
    bootstrap = new ServerBootstrap();
    switch(config.getTransportType()) {
        case NIO:
            initNioBootstrap();
            break;
        case EPOLL:
            initEpollBootstrap();
            break;
        case AUTO:
            if (Epoll.isAvailable()) {
                initEpollBootstrap();
                LOG.info("Transport type 'auto': using EPOLL.");
            } else {
                initNioBootstrap();
                LOG.info("Transport type 'auto': using NIO.");
            }
    }
    // --------------------------------------------------------------------
    // Configuration
    // --------------------------------------------------------------------
    // Server bind address
    bootstrap.localAddress(config.getServerAddress(), config.getServerPort());
    // Pooled allocators for Netty's ByteBuf instances
    bootstrap.option(ChannelOption.ALLOCATOR, nettyBufferPool);
    bootstrap.childOption(ChannelOption.ALLOCATOR, nettyBufferPool);
    if (config.getServerConnectBacklog() > 0) {
        bootstrap.option(ChannelOption.SO_BACKLOG, config.getServerConnectBacklog());
    }
    // Receive and send buffer size
    int receiveAndSendBufferSize = config.getSendAndReceiveBufferSize();
    if (receiveAndSendBufferSize > 0) {
        bootstrap.childOption(ChannelOption.SO_SNDBUF, receiveAndSendBufferSize);
        bootstrap.childOption(ChannelOption.SO_RCVBUF, receiveAndSendBufferSize);
    }
    // Low and high water marks for flow control
    bootstrap.childOption(ChannelOption.WRITE_BUFFER_LOW_WATER_MARK, config.getMemorySegmentSize() + 1);
    bootstrap.childOption(ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK, 2 * config.getMemorySegmentSize());
    // SSL related configuration
    try {
        serverSSLContext = config.createServerSSLContext();
    } catch (Exception e) {
        throw new IOException("Failed to initialize SSL Context for the Netty Server", e);
    }
    // --------------------------------------------------------------------
    // Child channel pipeline for accepted connections
    // --------------------------------------------------------------------
    bootstrap.childHandler(new ChannelInitializer<SocketChannel>() {

        @Override
        public void initChannel(SocketChannel channel) throws Exception {
            if (serverSSLContext != null) {
                SSLEngine sslEngine = serverSSLContext.createSSLEngine();
                config.setSSLVerAndCipherSuites(sslEngine);
                sslEngine.setUseClientMode(false);
                channel.pipeline().addLast("ssl", new SslHandler(sslEngine));
            }
            channel.pipeline().addLast(protocol.getServerChannelHandlers());
        }
    });
    // --------------------------------------------------------------------
    // Start Server
    // --------------------------------------------------------------------
    bindFuture = bootstrap.bind().syncUninterruptibly();
    localAddress = (InetSocketAddress) bindFuture.channel().localAddress();
    long end = System.currentTimeMillis();
    LOG.info("Successful initialization (took {} ms). Listening on SocketAddress {}.", (end - start), bindFuture.channel().localAddress().toString());
}

Example 5 with ServerBootstrap

use of io.netty.bootstrap.ServerBootstrap in project elasticsearch by elastic.

the class Netty4HttpServerTransport method doStart.

@Override
protected void doStart() {
    boolean success = false;
    try {
        this.serverOpenChannels = new Netty4OpenChannelsHandler(logger);
        serverBootstrap = new ServerBootstrap();
        serverBootstrap.group(new NioEventLoopGroup(workerCount, daemonThreadFactory(settings, HTTP_SERVER_WORKER_THREAD_NAME_PREFIX)));
        serverBootstrap.channel(NioServerSocketChannel.class);
        serverBootstrap.childHandler(configureServerChannelHandler());
        serverBootstrap.childOption(ChannelOption.TCP_NODELAY, SETTING_HTTP_TCP_NO_DELAY.get(settings));
        serverBootstrap.childOption(ChannelOption.SO_KEEPALIVE, SETTING_HTTP_TCP_KEEP_ALIVE.get(settings));
        final ByteSizeValue tcpSendBufferSize = SETTING_HTTP_TCP_SEND_BUFFER_SIZE.get(settings);
        if (tcpSendBufferSize.getBytes() > 0) {
            serverBootstrap.childOption(ChannelOption.SO_SNDBUF, Math.toIntExact(tcpSendBufferSize.getBytes()));
        }
        final ByteSizeValue tcpReceiveBufferSize = SETTING_HTTP_TCP_RECEIVE_BUFFER_SIZE.get(settings);
        if (tcpReceiveBufferSize.getBytes() > 0) {
            serverBootstrap.childOption(ChannelOption.SO_RCVBUF, Math.toIntExact(tcpReceiveBufferSize.getBytes()));
        }
        serverBootstrap.option(ChannelOption.RCVBUF_ALLOCATOR, recvByteBufAllocator);
        serverBootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR, recvByteBufAllocator);
        final boolean reuseAddress = SETTING_HTTP_TCP_REUSE_ADDRESS.get(settings);
        serverBootstrap.option(ChannelOption.SO_REUSEADDR, reuseAddress);
        serverBootstrap.childOption(ChannelOption.SO_REUSEADDR, reuseAddress);
        this.boundAddress = createBoundHttpAddress();
        if (logger.isInfoEnabled()) {
            logger.info("{}", boundAddress);
        }
        success = true;
    } finally {
        if (success == false) {
            // otherwise we leak threads since we never moved to started
            doStop();
        }
    }
}