Example usage for io.netty.channel EventLoopGroup shutdownGracefully

List of usage examples for io.netty.channel EventLoopGroup shutdownGracefully

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Introduction

In this page you can find the example usage for io.netty.channel EventLoopGroup shutdownGracefully.

Prototype

Future<?> shutdownGracefully();

Source Link

Document

Shortcut method for #shutdownGracefully(long,long,TimeUnit) with sensible default values.

Usage

From source file:com.flysoloing.learning.network.netty.localecho.LocalEcho.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Address to bind on / connect to.
    final LocalAddress addr = new LocalAddress(PORT);

    EventLoopGroup serverGroup = new DefaultEventLoopGroup();
    EventLoopGroup clientGroup = new NioEventLoopGroup(); // NIO event loops are also OK
    try {/*from   w  w w .jav  a 2 s .co  m*/
        // Note that we can use any event loop to ensure certain local channels
        // are handled by the same event loop thread which drives a certain socket channel
        // to reduce the communication latency between socket channels and local channels.
        ServerBootstrap sb = new ServerBootstrap();
        sb.group(serverGroup).channel(LocalServerChannel.class)
                .handler(new ChannelInitializer<LocalServerChannel>() {
                    @Override
                    public void initChannel(LocalServerChannel ch) throws Exception {
                        ch.pipeline().addLast(new LoggingHandler(LogLevel.INFO));
                    }
                }).childHandler(new ChannelInitializer<LocalChannel>() {
                    @Override
                    public void initChannel(LocalChannel ch) throws Exception {
                        ch.pipeline().addLast(new LoggingHandler(LogLevel.INFO), new LocalEchoServerHandler());
                    }
                });

        Bootstrap cb = new Bootstrap();
        cb.group(clientGroup).channel(LocalChannel.class).handler(new ChannelInitializer<LocalChannel>() {
            @Override
            public void initChannel(LocalChannel ch) throws Exception {
                ch.pipeline().addLast(new LoggingHandler(LogLevel.INFO), new LocalEchoClientHandler());
            }
        });

        // Start the server.
        sb.bind(addr).sync();

        // Start the client.
        Channel ch = cb.connect(addr).sync().channel();

        // Read commands from the stdin.
        System.out.println("Enter text (quit to end)");
        ChannelFuture lastWriteFuture = null;
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        for (;;) {
            String line = in.readLine();
            if (line == null || "quit".equalsIgnoreCase(line)) {
                break;
            }

            // Sends the received line to the server.
            lastWriteFuture = ch.writeAndFlush(line);
        }

        // Wait until all messages are flushed before closing the channel.
        if (lastWriteFuture != null) {
            lastWriteFuture.awaitUninterruptibly();
        }
    } finally {
        serverGroup.shutdownGracefully();
        clientGroup.shutdownGracefully();
    }
}

From source file:com.flysoloing.learning.network.netty.portunification.PortUnificationServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL context
    SelfSignedCertificate ssc = new SelfSignedCertificate();
    final SslContext sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//  w  w w.ja  v  a2s . c  o m
        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 {
                        ch.pipeline().addLast(new PortUnificationServerHandler(sslCtx));
                    }
                });

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

From source file:com.flysoloing.learning.network.netty.proxy.HexDumpProxy.java

License:Apache License

public static void main(String[] args) throws Exception {
    System.err.println("Proxying *:" + LOCAL_PORT + " to " + REMOTE_HOST + ':' + REMOTE_PORT + " ...");

    // Configure the bootstrap.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from  w w w  .j a  v a  2s  . com*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new HexDumpProxyInitializer(REMOTE_HOST, REMOTE_PORT))
                .childOption(ChannelOption.AUTO_READ, false).bind(LOCAL_PORT).sync().channel().closeFuture()
                .sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:com.flysoloing.learning.network.netty.qotm.QuoteOfTheMomentClient.java

License:Apache License

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

    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from  w  ww.  j  ava 2  s.c om*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_BROADCAST, true)
                .handler(new QuoteOfTheMomentClientHandler());

        Channel ch = b.bind(0).sync().channel();

        // Broadcast the QOTM request to port 8080.
        ch.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer("QOTM?", CharsetUtil.UTF_8),
                SocketUtils.socketAddress("255.255.255.255", PORT))).sync();

        // QuoteOfTheMomentClientHandler will close the DatagramChannel when a
        // response is received.  If the channel is not closed within 5 seconds,
        // print an error message and quit.
        if (!ch.closeFuture().await(5000)) {
            System.err.println("QOTM request timed out.");
        }
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.flysoloing.learning.network.netty.qotm.QuoteOfTheMomentServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from   w ww  . j av  a2s. c  om*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_BROADCAST, true)
                .handler(new QuoteOfTheMomentServerHandler());

        b.bind(PORT).sync().channel().closeFuture().await();
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.flysoloing.learning.network.netty.redis.RedisClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//from w ww .  j a  va 2 s. c o m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
            @Override
            protected void initChannel(SocketChannel ch) throws Exception {
                ChannelPipeline p = ch.pipeline();
                p.addLast(new RedisDecoder());
                p.addLast(new RedisBulkStringAggregator());
                p.addLast(new RedisArrayAggregator());
                p.addLast(new RedisEncoder());
                p.addLast(new RedisClientHandler());
            }
        });

        // Start the connection attempt.
        Channel ch = b.connect(HOST, PORT).sync().channel();

        // Read commands from the stdin.
        System.out.println("Enter Redis commands (quit to end)");
        ChannelFuture lastWriteFuture = null;
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        for (;;) {
            final String input = in.readLine();
            final String line = input != null ? input.trim() : null;
            if (line == null || "quit".equalsIgnoreCase(line)) { // EOF or "quit"
                ch.close().sync();
                break;
            } else if (line.isEmpty()) { // skip `enter` or `enter` with spaces.
                continue;
            }
            // Sends the received line to the server.
            lastWriteFuture = ch.writeAndFlush(line);
            lastWriteFuture.addListener(new GenericFutureListener<ChannelFuture>() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (!future.isSuccess()) {
                        System.err.print("write failed: ");
                        future.cause().printStackTrace(System.err);
                    }
                }
            });
        }

        // Wait until all messages are flushed before closing the channel.
        if (lastWriteFuture != null) {
            lastWriteFuture.sync();
        }
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.flysoloing.learning.network.netty.spdy.client.SpdyClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE)
            .applicationProtocolConfig(new ApplicationProtocolConfig(Protocol.NPN,
                    // NO_ADVERTISE is currently the only mode supported by both OpenSsl and JDK providers.
                    SelectorFailureBehavior.NO_ADVERTISE,
                    // ACCEPT is currently the only mode supported by both OpenSsl and JDK providers.
                    SelectedListenerFailureBehavior.ACCEPT, ApplicationProtocolNames.SPDY_3_1,
                    ApplicationProtocolNames.HTTP_1_1))
            .build();//from w ww  .ja v a2  s.c  o m

    HttpResponseClientHandler httpResponseHandler = new HttpResponseClientHandler();
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {
        Bootstrap b = new Bootstrap();
        b.group(workerGroup);
        b.channel(NioSocketChannel.class);
        b.option(ChannelOption.SO_KEEPALIVE, true);
        b.remoteAddress(HOST, PORT);
        b.handler(new SpdyClientInitializer(sslCtx, httpResponseHandler));

        // Start the client.
        Channel channel = b.connect().syncUninterruptibly().channel();
        System.out.println("Connected to " + HOST + ':' + PORT);

        // Create a GET request.
        HttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "");
        request.headers().set(HttpHeaderNames.HOST, HOST);
        request.headers().set(HttpHeaderNames.ACCEPT_ENCODING, HttpHeaderValues.GZIP);

        // Send the GET request.
        channel.writeAndFlush(request).sync();

        // Waits for the complete HTTP response
        httpResponseHandler.queue().take().sync();
        System.out.println("Finished SPDY HTTP GET");

        // Wait until the connection is closed.
        channel.close().syncUninterruptibly();
    } finally {
        workerGroup.shutdownGracefully();
    }
}

From source file:com.flysoloing.learning.network.netty.spdy.server.SpdyServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    SelfSignedCertificate ssc = new SelfSignedCertificate();
    SslContext sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey())
            .applicationProtocolConfig(new ApplicationProtocolConfig(Protocol.NPN,
                    // NO_ADVERTISE is currently the only mode supported by both OpenSsl and JDK providers.
                    SelectorFailureBehavior.NO_ADVERTISE,
                    // ACCEPT is currently the only mode supported by both OpenSsl and JDK providers.
                    SelectedListenerFailureBehavior.ACCEPT, ApplicationProtocolNames.SPDY_3_1,
                    ApplicationProtocolNames.HTTP_1_1))
            .build();/*  w ww .j  av a 2s  . c om*/

    // 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 SpdyServerInitializer(sslCtx));

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

        System.err
                .println("Open your SPDY-enabled web browser and navigate to https://127.0.0.1:" + PORT + '/');
        System.err.println("If using Chrome browser, check your SPDY sessions at chrome://net-internals/#spdy");

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

From source file:com.flysoloing.learning.network.netty.telnet.TelnetClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {/*ww  w  .j  ava2s . c o m*/
        sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
    } else {
        sslCtx = null;
    }

    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new TelnetClientInitializer(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 {
        group.shutdownGracefully();
    }
}

From source file:com.flysoloing.learning.network.netty.telnet.TelnetServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {/*w  w w.j  a va  2  s .  co m*/
        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.INFO)).childHandler(new TelnetServerInitializer(sslCtx));

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