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

List of usage examples for io.netty.channel.nio NioEventLoopGroup NioEventLoopGroup

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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:cf.dropsonde.firehose.NettyFirehoseOnSubscribe.java

License:Open Source License

public NettyFirehoseOnSubscribe(URI uri, String token, String subscriptionId, boolean skipTlsValidation,
        EventLoopGroup eventLoopGroup, Class<? extends SocketChannel> channelClass) {
    try {//from  w w w  .  jav  a2s  .  c  o  m
        final String host = uri.getHost() == null ? "127.0.0.1" : uri.getHost();
        final String scheme = uri.getScheme() == null ? "ws" : uri.getScheme();
        final int port = getPort(scheme, uri.getPort());
        final URI fullUri = uri.resolve("/firehose/" + subscriptionId);

        final SslContext sslContext;
        if ("wss".equalsIgnoreCase(scheme)) {
            final SslContextBuilder sslContextBuilder = SslContextBuilder.forClient();
            if (skipTlsValidation) {
                sslContextBuilder.trustManager(InsecureTrustManagerFactory.INSTANCE);
            } else {
                TrustManagerFactory trustManagerFactory = TrustManagerFactory
                        .getInstance(TrustManagerFactory.getDefaultAlgorithm());
                trustManagerFactory.init((KeyStore) null);
                sslContextBuilder.trustManager(trustManagerFactory);
            }
            sslContext = sslContextBuilder.build();
        } else {
            sslContext = null;
        }

        bootstrap = new Bootstrap();
        if (eventLoopGroup == null) {
            this.eventLoopGroup = new NioEventLoopGroup();
            bootstrap.group(this.eventLoopGroup);
        } else {
            this.eventLoopGroup = null;
            bootstrap.group(eventLoopGroup);
        }
        bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 15000)
                .channel(channelClass == null ? NioSocketChannel.class : channelClass).remoteAddress(host, port)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel c) throws Exception {
                        final HttpHeaders headers = new DefaultHttpHeaders();
                        headers.add(HttpHeaders.Names.AUTHORIZATION, token);
                        final WebSocketClientHandler handler = new WebSocketClientHandler(
                                WebSocketClientHandshakerFactory.newHandshaker(fullUri, WebSocketVersion.V13,
                                        null, false, headers));
                        final ChannelPipeline pipeline = c.pipeline();
                        if (sslContext != null) {
                            pipeline.addLast(sslContext.newHandler(c.alloc(), host, port));
                        }
                        pipeline.addLast(new ReadTimeoutHandler(30));
                        pipeline.addLast(new HttpClientCodec(), new HttpObjectAggregator(8192));
                        pipeline.addLast(HANDLER_NAME, handler);

                        channel = c;
                    }
                });
    } catch (NoSuchAlgorithmException | SSLException | KeyStoreException e) {
        throw new RuntimeException(e);
    }
}

From source file:ch.ethz.globis.distindex.middleware.net.IndexMiddleware.java

License:Open Source License

@Override
public void run() {

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

    balancingDaemon.run();/*from   ww  w. j  av a 2  s.  c o  m*/
    try {
        //initialize the server channels
        ServerBootstrap b = initServerBootstrap(handler);
        ChannelFuture f = b.bind(port).sync();

        //register as a viable host to the cluster service
        clusterService.connect();
        if (joinedAsFree) {
            clusterService.registerFreeHost(getHostId());
        } else {
            clusterService.registerHost(getHostId());
        }
        isRunning = true;

        f.channel().closeFuture().sync();
    } catch (InterruptedException ie) {
        LOG.error("An error occurred while operating on the channel.", ie);
        ie.printStackTrace();
    } finally {
        closeEventLoops();
        isRunning = false;
        //disconnect the cluster service
        clusterService.disconnect();
    }
}

From source file:chapter01.EchoClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();

    try {/*from   ww  w .j a va2 s  .  c o m*/
        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 EchoClientHandler());
            }
        });

        ChannelFuture f = b.connect("localhost", 8888).sync();

        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }
}

From source file:chapter10.WebSocketServer.java

License:Apache License

public void run(int port) throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//from   w  w w . j  a  v  a 2  s .c  o  m
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {

                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline pipeline = ch.pipeline();
                        pipeline.addLast("http-codec", new HttpServerCodec());
                        pipeline.addLast("aggregator", new HttpObjectAggregator(65536));
                        ch.pipeline().addLast("http-chunked", new ChunkedWriteHandler());
                        pipeline.addLast("handler", new WebSocketServerHandler());
                    }
                });

        Channel ch = b.bind(port).sync().channel();
        System.out.println("Web socket server started at port " + port + '.');
        System.out.println("Open your browser and navigate to http://localhost:" + port + '/');

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

From source file:chat.viska.xmpp.Connection.java

License:Apache License

private static Single<List<DnsRecord>> lookupDnsUsingNetty(final String query, final DnsRecordType type,
        @Nullable final Iterable<String> dns) {
    final NioEventLoopGroup threadPool = new NioEventLoopGroup();
    final DnsNameResolverBuilder builder = new DnsNameResolverBuilder(threadPool.next());
    builder.channelFactory(new ReflectiveChannelFactory<>(NioDatagramChannel.class));
    builder.decodeIdn(true);//  w w w.j  ava 2  s . c om
    if (dns != null) {
        builder.searchDomains(dns);
    }
    return Single.fromFuture(builder.build().query(new DefaultDnsQuestion(query, type)))
            .map(AddressedEnvelope::content).map(message -> {
                final int recordsSize = message.count(DnsSection.ANSWER);
                final List<DnsRecord> records = new ArrayList<>(recordsSize);
                for (int it = 0; it < recordsSize; ++it) {
                    records.add(message.recordAt(DnsSection.ANSWER, it));
                }
                return records;
            }).doFinally(threadPool::shutdownGracefully);
}

From source file:ChatClient.ChatClient.java

public void run() {
    EventLoopGroup group = new NioEventLoopGroup();

    try {/* www  . ja v  a2s  .  c om*/
        Bootstrap bootstrap = new Bootstrap().group(group).channel(NioSocketChannel.class)
                .handler(new ChatClientInitializer());
        Channel channel = bootstrap.connect(host, PORT).sync().channel();
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

        while (true) {
            try {
                String line = in.readLine();
                channel.writeAndFlush(new StringMessage(0, 0, "Client", line));
                System.out.println("ECHO: " + line);
            } catch (IOException ex) {
                System.err.println("Writing error");
            }
        }
    } catch (InterruptedException ex) {
        System.err.println("Interrupt Error");
    } finally {
        group.shutdownGracefully();
    }
}

From source file:ChatServer.ChatServer.java

public void run() {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {//from w  w  w  . ja va 2s.c o m
        ServerBootstrap bootstrap = new ServerBootstrap().group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class).childHandler(new ChatServerInitializer());

        bootstrap.bind(port).channel().closeFuture().sync();
    } catch (InterruptedException ex) {
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

From source file:cl.uandes.so.server.LoginServer.java

public void run() throws Exception {
    final EventLoopGroup group = new NioEventLoopGroup(); // (1)

    try {//from w ww.  j  a va2 s.  c o m
        Thread t1 = new Thread(new Runnable() {
            public void run() {
                System.out.println("Login Server will stop in 60 seconds...");
                try {
                    Thread.sleep(10000);
                } catch (InterruptedException ex) {
                    Logger.getLogger(LoginServer.class.getName()).log(Level.SEVERE, null, ex);
                }
                group.shutdownGracefully();

            }
        });
        Thread t2 = new Thread(new Runnable() {
            public void run() {
                int counter = 1;
                while (counter < 10) {
                    System.out.println("Time : " + counter);
                    try {
                        Thread.sleep(1000);
                        counter++;
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        });
        t1.start();
        t2.start();
        Bootstrap b = new Bootstrap(); // (2)
        b.group(group).channel(NioDatagramChannel.class) // (3)
                .option(ChannelOption.SO_BROADCAST, true).handler(new LoginServerHandler(multicastgroup));

        // Bind and start to accept incoming connections.
        b.bind(port).sync().channel().closeFuture().await(); // (7)

    } finally {
        group.shutdownGracefully();
    }
}

From source file:client.DiscardClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {//from  w w w.j a v  a 2  s . co  m
        sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
    } else {
        sslCtx = null;
    }

    EventLoopGroup group = new NioEventLoopGroup();
    try {
        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();
                if (sslCtx != null) {
                    p.addLast(sslCtx.newHandler(ch.alloc(), HOST, PORT));
                }
                p.addLast(new DiscardClientHandler());
            }
        });

        // Make the connection attempt.
        ChannelFuture f = b.connect(HOST, PORT).sync();

        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }
}

From source file:cloudeventbus.cli.Server.java

License:Open Source License

public static void main(String[] args) throws Exception {
    final JCommander commander = new JCommander();

    final Options options = new Options();
    commander.addObject(options);/*  ww  w  . jav a 2 s  .  co m*/

    commander.setProgramName("eventbus-server");

    try {
        commander.parse(args);

        DefaultOptions.setLogLevel(options);

        TrustStore trustStore = CertificateUtils.loadTrustStore(options.trustStore);
        if (trustStore != null && trustStore.size() > 0) {
            System.out.println("Using trust store at: " + options.trustStore);
        } else {
            trustStore = null;
        }

        final int port = options.port;

        final CertificateChain certificateChain;
        final PrivateKey privateKey;
        if (options.certificate == null) {
            certificateChain = null;
            privateKey = null;
        } else {
            certificateChain = CertificateUtils.loadCertificateChain(options.certificate);
            System.out.println("Using certificate at: " + options.certificate);
            if (options.privateKey == null) {
                System.err.print("You must specify a private key when using a certificate.");
                System.exit(1);
                return;
            } else {
                privateKey = CertificateUtils.loadPrivateKey(options.privateKey);
                System.out.println("Using private key at: " + options.privateKey);
            }
        }

        final NioEventLoopGroup parentGroup = new NioEventLoopGroup();
        final GlobalHub globalHub = new GlobalHub();
        final ServerConfig serverConfig = new ServerConfig(port, "cloudeventbus-simple-server", trustStore,
                certificateChain, privateKey);
        final ClusterManager clusterManager = new ClusterManager(serverConfig, globalHub, parentGroup);
        if (options.peers != null) {
            for (String peer : options.peers) {
                final String[] parts = peer.split(":");
                if (parts.length != 2) {
                    throw new IllegalArgumentException(
                            "Invalid peer address " + peer + " should be HOST:PORT (e.g. 127.0.0.1:4223)");
                }
                clusterManager.registerPeer(new InetSocketAddress(parts[0], Integer.valueOf(parts[1])));
            }
        }
        new ServerBootstrap().group(parentGroup, new NioEventLoopGroup()).channel(NioServerSocketChannel.class)
                .localAddress(new InetSocketAddress(port))
                .childHandler(new ServerChannelInitializer(serverConfig, clusterManager, globalHub)).bind()
                .awaitUninterruptibly();
        System.out.println("Server listening on port " + port);
    } catch (ParameterException e) {
        System.err.println(e.getMessage());
        commander.usage();
        System.exit(1);
    }
}