Example usage for io.netty.channel.nio NioEventLoopGroup NioEventLoopGroup

Introduction

In this page you can find the example usage for io.netty.channel.nio NioEventLoopGroup NioEventLoopGroup.

Prototype

public NioEventLoopGroup() 

Source Link

Document

Create a new instance using the default number of threads, the default ThreadFactory and the SelectorProvider which is returned by SelectorProvider#provider() .

Usage

From source file:WorldClockClient.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from   www . j ava2 s . c  om*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new WorldClockClientInitializer());

        // Make a new connection.
        Channel ch = b.connect(host, port).sync().channel();

        // Get the handler instance to initiate the request.
        WorldClockClientHandler handler = ch.pipeline().get(WorldClockClientHandler.class);

        // Request and get the response.
        List<String> response = handler.getLocalTimes(cities);

        // Close the connection.
        ch.close();
        group.shutdownGracefully();
        /*
         // Print the response at last but not least.
         Iterator<String> i1 = cities.iterator();
         Iterator<String> i2 = response.iterator();
         while (i1.hasNext()) {
         System.out.format("%28s: %s%n", i1.next(), i2.next());
         }*/
    } finally {
        group.shutdownGracefully();
    }
}

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From source file:UdpServer.java

License:Open Source License

public void run() throws Exception {
    final NioEventLoopGroup group = new NioEventLoopGroup();
    //Create Actor System
    final ActorSystem system = ActorSystem.create("CapwapFSMActorSystem");
    final ActorRef PacketProcessorActor = system
            .actorOf(Props.create(CapwapMsgProcActor.class, "MessageProcessorActor"), "MessageProcessorActor");
    try {/*from www. jav  a  2s.c  o  m*/
        final Bootstrap b = new Bootstrap();
        b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_BROADCAST, true)
                .handler(new ChannelInitializer<NioDatagramChannel>() {
                    @Override
                    public void initChannel(final NioDatagramChannel ch) throws Exception {

                        ChannelPipeline p = ch.pipeline();
                        createActorAndHandler(p);
                        //p.addLast(new IncommingPacketHandler(PacketProcessorActor));
                    }
                });

        // Bind and start to accept incoming connections.
        Integer pPort = port;
        InetAddress address = InetAddress.getLoopbackAddress();
        System.out.printf("\n\nwaiting for message %s %s\n\n", String.format(pPort.toString()),
                String.format(address.toString()));
        b.bind(address, port).sync().channel().closeFuture().await();

    } finally {
        System.out.print("In Server Finally");
    }
}

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From source file:WorldClockServer.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//www. j  av a 2  s.c o m
        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();
    }
}

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From source file:NettyBootSpeedTest.java

@Test
public void testBoot() throws InterruptedException {
    long start = System.currentTimeMillis();

    Bootstrap bootstrap = new Bootstrap();
    bootstrap.channel(NioSocketChannel.class);
    bootstrap.group(new NioEventLoopGroup());
    bootstrap.handler(new ChannelHandlerAdapter() {
    });/*from  www  .  j a  va2s . c  o m*/

    long mid = System.currentTimeMillis();

    bootstrap.bind(10000).await();
    bootstrap.connect("localhost", 10000).await();

    long end = System.currentTimeMillis();
    System.out.println("Setup took " + (mid - start) + " ms");
    System.out.println("Boot took " + (end - start) + " ms");
}

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From source file:TelnetClient.java

License:Apache License

public static void main(String args[]) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {/*from w  w  w . j ava 2s .co 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));

        // Sends the received line to the server.
        while (true) {
            lastWriteFuture = ch.writeAndFlush("req" + "\r\n");
        }

        // If user typed the 'bye' command, wait until the server closes
        // the connection.

        // ch.closeFuture().sync();

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

---

From source file:HttpUploadServer.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*w  w w  . j a va2  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();
    }
}

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From source file:HttpUploadClient.java

License:Apache License

public void run() throws Exception {
    String postSimple, postFile, get;
    if (baseUri.endsWith("/")) {
        postSimple = baseUri + "formpost";
        postFile = baseUri + "formpostmultipart";
        get = baseUri + "formget";
    } else {/*from w w  w. j  a v a 2s  . c om*/
        postSimple = baseUri + "/formpost";
        postFile = baseUri + "/formpostmultipart";
        get = baseUri + "/formget";
    }
    URI uriSimple;
    try {
        uriSimple = new URI(postSimple);
    } catch (URISyntaxException e) {
        logger.log(Level.WARNING, "Invalid URI syntax", e);
        return;
    }
    String scheme = uriSimple.getScheme() == null ? "http" : uriSimple.getScheme();
    String host = uriSimple.getHost() == null ? "localhost" : uriSimple.getHost();
    int port = uriSimple.getPort();
    if (port == -1) {
        if ("http".equalsIgnoreCase(scheme)) {
            port = 80;
        } else if ("https".equalsIgnoreCase(scheme)) {
            port = 443;
        }
    }

    if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)) {
        logger.log(Level.WARNING, "Only HTTP(S) is supported.");
        return;
    }

    boolean ssl = "https".equalsIgnoreCase(scheme);

    URI uriFile;
    try {
        uriFile = new URI(postFile);
    } catch (URISyntaxException e) {
        logger.log(Level.WARNING, "Error: ", e);
        return;
    }
    File file = new File(filePath);
    if (!file.canRead()) {
        logger.log(Level.WARNING, "A correct path is needed");
        return;
    }

    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();

    // setup the factory: here using a mixed memory/disk based on size threshold
    HttpDataFactory factory = new DefaultHttpDataFactory(DefaultHttpDataFactory.MINSIZE); // Disk if MINSIZE exceed

    DiskFileUpload.deleteOnExitTemporaryFile = true; // should delete file on exit (in normal exit)
    DiskFileUpload.baseDirectory = null; // system temp directory
    DiskAttribute.deleteOnExitTemporaryFile = true; // should delete file on exit (in normal exit)
    DiskAttribute.baseDirectory = null; // system temp directory

    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new HttpUploadClientIntializer(ssl));

        // Simple Get form: no factory used (not usable)
        List<Entry<String, String>> headers = formGet(b, host, port, get, uriSimple);
        if (headers == null) {
            factory.cleanAllHttpDatas();
            return;
        }

        // Simple Post form: factory used for big attributes
        List<InterfaceHttpData> bodylist = formPost(b, host, port, uriSimple, file, factory, headers);
        if (bodylist == null) {
            factory.cleanAllHttpDatas();
            return;
        }

        // Multipart Post form: factory used
        formPostMultipart(b, host, port, uriFile, factory, headers, bodylist);
    } finally {
        // Shut down executor threads to exit.
        group.shutdownGracefully();

        // Really clean all temporary files if they still exist
        factory.cleanAllHttpDatas();
    }
}

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From source file:FSMTester.java

License:Open Source License

public void run() throws Exception {
    final NioEventLoopGroup group = new NioEventLoopGroup();
    //Create Actor System
    final ActorSystem system = ActorSystem.create("CapwapFSMActorSystem");
    final ActorRef PacketProcessorActor = system
            .actorOf(Props.create(CapwapMsgProcActor.class, "MessageProcessorActor"), "MessageProcessorActor");
    try {/* www .  jav a 2s  .c  o  m*/
        final Bootstrap b = new Bootstrap();
        b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_BROADCAST, true)
                .handler(new ChannelInitializer<NioDatagramChannel>() {
                    @Override
                    public void initChannel(final NioDatagramChannel ch) throws Exception {

                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new IncommingPacketFSMHandler(PacketProcessorActor));
                    }
                });

        // Bind and start to accept incoming connections.
        Integer pPort = port;
        InetAddress address = InetAddress.getLoopbackAddress();
        System.out.printf("\n\nwaiting for message %s %s\n\n", String.format(pPort.toString()),
                String.format(address.toString()));
        b.bind(address, port).sync().channel().closeFuture().await();

    } finally {
        System.out.print("In Server Finally");
    }
}

---

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

License:Apache License

public void start(String host, int port) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//  www.  j av  a2  s  .  c om
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(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 ObjectEchoClientHandler());
            }
        });

        channel = b.connect(host, port).sync().channel();
    } finally {

    }
}

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From source file:at.yawk.accordion.netty.NettyConnector.java

License:Mozilla Public License

@Override
public Optional<Connection> connect(SocketAddress address) {
    // TODO find a non-hacky method to close channels
    Collection<Channel> registeredChannels = Collections.synchronizedList(new ArrayList<>());

    EventLoopGroup workerGroup = new NioEventLoopGroup() {
        @Override//from   w ww. ja va 2s  .c o  m
        public ChannelFuture register(Channel channel, ChannelPromise promise) {
            registeredChannels.add(channel);
            return super.register(channel, promise);
        }
    };

    AtomicReference<Connection> connectionRef = new AtomicReference<>();

    // init
    Bootstrap bootstrap = new Bootstrap().group(workerGroup).handler(new ChannelHandlerAdapter() {
        @Override
        public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
            NettyConnection connection = new NettyConnection(ctx.channel());
            connectionRef.set(connection);
            connection.init();
        }
    }).channel(NioSocketChannel.class).option(ChannelOption.SO_KEEPALIVE, true);

    try {
        // connect
        ChannelFuture connectFuture = bootstrap.connect(address);
        // wait for connection
        connectFuture.sync();
        return Optional.of(connectionRef.get());
    } catch (Exception e) {
        // shut down workers
        workerGroup.shutdownGracefully();

        // kill channels
        registeredChannels.forEach(NettyConnection::close);

        return Optional.empty();
    }
}

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