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:com.gdut.Netty_testing.dongjun.client.Client.java

License:Apache License

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

        // Make a new connection.
        Channel ch = b.connect(HOST, PORT).sync().channel();
        ch.writeAndFlush("108B01008C163543653432532432");

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

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

        // Close the connection.
        ch.close();

        // Print the response at last but not least.
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.gdut.Netty_testing.t2.client.WorldClockClient.java

License:Apache License

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

        // 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);

        for (int j = 0; j < 6; j++) {

            // Request and get the response.
            List<String> response = handler.getLocalTimes(CITIES);
            Thread.sleep(2000);

            // Print the response at last but not least.
            for (int i = 0; i < CITIES.size(); i++) {
                System.out.format("%28s: %s%n", CITIES.get(i), response.get(i));
            }
        }
        // Close the connection.
        ch.close();

    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.gdut.Netty_testing.time_server.client.TimeClient.java

License:Apache License

/**
 * /* ww  w  .  j  av  a2 s. c  o m*/
 * @Title: main
 * @Description: TODO
 * @param @param args
 * @param @throws Exception
 * @return void
 * @throws
 */
public static void main(String[] args) throws Exception {
    // Configure SSL.git
    final SslContext sslCtx;
    if (SSL) {
        sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
    } else {
        sslCtx = null;
    }

    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new TimeDecoder(), new TimeClientHandler(),
                                new TimeOutBoundHandler(), new LoggingHandler(LogLevel.INFO));
                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(HOST, PORT).sync();
        // channel.connect(remoteAddress, promise);
        // ?connect()??OutboundHandler
        // ?InboundHandlerlogic???
        // ??
        // InboundHandler?writeAndFlush(Object
        // msg)??OutBoundHandler
        // ??  ctx.write(encoded, promise);
        // writeAndFlush(Object msg)
        // ?InboundHandler  decoder?
        // ?TimeClientHandler()Handler,
        // ctx.close();?OutBoundHandler ?

        Thread.sleep(9000);
        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}

From source file:com.github.brandtg.switchboard.FileLogAggregator.java

License:Apache License

/**
 * An agent that aggregates logs from multiple sources and multiplexes them.
 *
 * @param sources//from   w w w.j ava 2 s .  c o  m
 *  A set of source switchboard servers from which to pull logs
 * @param separator
 *  The line delimiter (after this is reached, lines will be output to outputStream)
 * @param outputStream
 *  OutputStream to which all multiplexed logs are piped
 */
public FileLogAggregator(Set<InetSocketAddress> sources, char separator, OutputStream outputStream)
        throws IOException {
    this.separator = separator;
    this.outputStream = outputStream;
    this.isShutdown = new AtomicBoolean(true);
    this.eventExecutors = new NioEventLoopGroup();
    this.logReceivers = new HashMap<>();
    this.inputStreams = new HashMap<>();
    this.listener = new Object();
    this.muxExecutor = Executors.newSingleThreadExecutor();
    this.stringBuffers = new HashMap<>();

    for (InetSocketAddress source : sources) {
        PipedOutputStream pos = new PipedOutputStream();
        PipedInputStream pis = new PipedInputStream(pos);
        LogReceiver logReceiver = new LogReceiver(new InetSocketAddress(0), eventExecutors, pos);
        logReceiver.registerListener(listener);
        logReceivers.put(source, logReceiver);
        inputStreams.put(source, pis);
        stringBuffers.put(source, new StringBuffer());
    }
}

From source file:com.github.brandtg.switchboard.HdfsLogIterator.java

License:Apache License

/**
 * Process listens to edit log events and prints their toString to STDOUT.
 */// w  w  w  . j ava2s. com
public static void main(String[] args) throws Exception {
    if (args.length != 2) {
        throw new Exception("usage: sourceHost:sourcePort serverPort");
    }
    String[] sourceHostPort = args[0].split(":");
    InetSocketAddress sourceAddress = new InetSocketAddress(sourceHostPort[0],
            Integer.valueOf(sourceHostPort[1]));
    InetSocketAddress serverAddress = new InetSocketAddress(Integer.valueOf(args[1]));
    PipedOutputStream outputStream = new PipedOutputStream();

    final EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
    final LogReceiver logReceiver = new LogReceiver(serverAddress, eventLoopGroup, outputStream);
    final LogPuller logPuller = new LogPuller(sourceAddress, serverAddress, "*", 0);
    final ExecutorService pullerExecutor = Executors.newSingleThreadExecutor();

    Runtime.getRuntime().addShutdownHook(new Thread() {
        @Override
        public void run() {
            try {
                logPuller.shutdown();
                pullerExecutor.shutdown();
                logReceiver.shutdown();
            } catch (Exception e) {
                LOG.error("Exception while shutting down log receiver", e);
            }
            eventLoopGroup.shutdownGracefully();
        }
    });

    logReceiver.registerListener(logPuller);
    logReceiver.start();
    pullerExecutor.submit(logPuller);

    // Print edit log ops to console
    PipedInputStream inputStream = new PipedInputStream(outputStream, 1024 * 1024);
    LogIterator<FSEditLogOp> itr = new HdfsLogIterator(inputStream);
    while (itr.hasNext()) {
        System.out.println(itr.next());
    }
}

From source file:com.github.brandtg.switchboard.LogReceiver.java

License:Apache License

public static void main(String[] args) throws Exception {
    LogReceiver logReceiver = new LogReceiver(new InetSocketAddress(2000), new NioEventLoopGroup(), System.out);
    logReceiver.start();//from w  ww. j ava 2s  . c o m
}

From source file:com.github.brandtg.switchboard.MysqlLogPuller.java

License:Apache License

/**
 * Starts pulling events from switchboard server.
 *//*from  ww  w  .  ja  v  a 2 s .c o m*/
public void start() throws Exception {
    if (!isStarted.getAndSet(true)) {
        outputStream.connect(inputStream);

        callbackExecutor = Executors.newSingleThreadExecutor();
        refreshExecutor = Executors.newSingleThreadExecutor();
        eventExecutors = new NioEventLoopGroup();

        // Start server to receive log segments
        logReceiver = new LogReceiver(sinkAddress, eventExecutors, outputStream);
        logReceiver.start();

        // Iterates through events and fires appropriate callbacks
        callbackExecutor.submit(getCallback());

        // Pulls log indexes
        logPuller = new LogPuller(sourceAddress, sinkAddress, database, lastIndex);
        logReceiver.registerListener(logPuller);
        refreshExecutor.submit(logPuller);
    }
}

From source file:com.github.herong.rpc.netty.protobuf.demo1.ProtobufClient.java

License:Apache License

public void run() throws Exception {
    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*  ww  w. ja  v  a2 s .  c  o m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline()

                                // 
                                .addLast("frameDecoder", new ProtobufVarint32FrameDecoder())
                                // 
                                .addLast("protobufDecoder",
                                        new ProtobufDecoder(AddressBookProtos.AddressBook.getDefaultInstance()))
                                // 
                                .addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender())
                                .addLast("protobufEncoder", new ProtobufEncoder())
                                // 
                                .addLast("handler", new ProtobufClientHandler());

                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(host, port).sync();

        sendMsg(f.channel());
        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}

From source file:com.github.herong.rpc.netty.protobuf.demo2.Demo2ProtobufClient.java

License:Apache License

public void run() throws Exception {
    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {//w  w  w . ja  v a2 s  .  c om
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline()

                                // 
                                .addLast("frameDecoder", new ProtobufVarint32FrameDecoder())
                                // 
                                .addLast("protobufDecoder",
                                        new ProtobufDecoder(Message.DTO.getDefaultInstance()))
                                // 
                                .addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender())
                                .addLast("protobufEncoder", new ProtobufEncoder())
                                // 
                                .addLast("handler", new Demo2ProtobufClientHandler());

                    }
                });

        // Start the client.
        ChannelFuture f = b.connect(host, port).sync();

        sendMsg(f.channel());
        // Wait until the connection is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}

From source file:com.github.lburgazzoli.quickfixj.transport.netty.NettySocketInitiator.java

License:Apache License

/**
 *
 *//*w ww  . j a  v a2s .c o  m*/
@Override
public void connect() {
    try {
        m_boot = new Bootstrap();
        m_boot.group(new NioEventLoopGroup());
        m_boot.channel(NioSocketChannel.class);
        m_boot.option(ChannelOption.SO_KEEPALIVE, true);
        m_boot.option(ChannelOption.TCP_NODELAY, true);
        m_boot.option(ChannelOption.ALLOCATOR, new PooledByteBufAllocator(true));
        m_boot.handler(new NettyChannelInitializer(this, getHelper(), FIXSessionType.INITIATOR));

        getHelper().getSession().getSessionID();
        String host = getHelper().getSettings().getString("SocketConnectHost");
        int port = getHelper().getSettings().getInt("SocketConnectPort");

        m_boot.remoteAddress(new InetSocketAddress(host, port));

        if (!isRunning()) {
            setRunning(true);
            doConnect();
        }
    } catch (Exception e) {
        LOGGER.warn("Exception", e);
        setRunning(false);
    }
}