Example usage for java.util.concurrent CountDownLatch CountDownLatch

List of usage examples for java.util.concurrent CountDownLatch CountDownLatch

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Introduction

In this page you can find the example usage for java.util.concurrent CountDownLatch CountDownLatch.

Prototype

public CountDownLatch(int count)

Source Link

Document

Constructs a CountDownLatch initialized with the given count.

Usage

From source file:com.dianping.dpsf.other.echo.EchoServer3.java

/**
 * @param args// w w  w  . jav  a2  s.  c o  m
 * @throws InterruptedException 
 */
public static void main(String[] args) throws InterruptedException {
    Thread.currentThread().setName("=============EchoSerer3============");
    ApplicationContext ctx = new ClassPathXmlApplicationContext("echo-server3.xml");
    if (args.length == 0) { //stand alone start
        CountDownLatch latch = new CountDownLatch(1);
        latch.await();
    }
}

From source file:com.dianping.dpsf.other.echo.EchoServer4.java

/**
 * @param args//from  w w  w .  j  av a 2  s .c om
 * @throws InterruptedException 
 */
public static void main(String[] args) throws InterruptedException {
    Thread.currentThread().setName("=============EchoSerer4============");
    ApplicationContext ctx = new ClassPathXmlApplicationContext("echo-server4.xml");
    if (args.length == 0) { //stand alone start
        CountDownLatch latch = new CountDownLatch(1);
        latch.await();
    }
}

From source file:se.sawano.eureka.legacyregistrar.boot.ExampleBootApplication.java

public static void main(String[] args) throws InterruptedException {
    SpringApplication.run(ExampleBootApplication.class, args);
    new CountDownLatch(1).await();
}

From source file:LatchHelperService.java

public static void main(String[] args) {
    // Create a countdown latch with 2 as its counter
    CountDownLatch latch = new CountDownLatch(2);
    LatchMainService ms = new LatchMainService(latch);
    ms.start();/*from  w  w  w  . j  a va 2 s.c  o  m*/
    for (int i = 1; i <= 2; i++) {
        LatchHelperService lhs = new LatchHelperService(i, latch);
        lhs.start();
    }
}

From source file:org.apache.geode.geospatial.grid.SpringBootGeodeServer.java

public static void main(String[] args) throws InterruptedException {
    SpringApplication.run(SpringBootGeodeServer.class);
    CountDownLatch countDownLatch = new CountDownLatch(1);
    countDownLatch.await();/*from   ww w .  j  a  v a 2  s.  co m*/
}

From source file:ch.rasc.wampspring.demo.client.CallClient.java

public static void main(String[] args) throws InterruptedException {
    WebSocketClient webSocketClient = new StandardWebSocketClient();
    JsonFactory jsonFactory = new MappingJsonFactory(new ObjectMapper());

    CountDownLatch latch = new CountDownLatch(1_000_000);
    TestTextWebSocketHandler handler = new TestTextWebSocketHandler(jsonFactory, latch);

    Long[] start = new Long[1];
    ListenableFuture<WebSocketSession> future = webSocketClient.doHandshake(handler,
            "ws://localhost:8080/wamp");
    future.addCallback(wss -> {/*  w  w  w . j  a va  2  s .c  o m*/
        start[0] = System.currentTimeMillis();
        for (int i = 0; i < 1_000_000; i++) {

            CallMessage callMessage = new CallMessage(UUID.randomUUID().toString(), "testService.sum", i,
                    i + 1);
            try {
                wss.sendMessage(new TextMessage(callMessage.toJson(jsonFactory)));
            } catch (Exception e) {
                System.out.println("ERROR SENDING CALLMESSAGE" + e);
                latch.countDown();
            }
        }

    }, t -> {
        System.out.println("DO HANDSHAKE ERROR: " + t);
        System.exit(1);
    });

    if (!latch.await(3, TimeUnit.MINUTES)) {
        System.out.println("SOMETHING WENT WRONG");
    }

    System.out.println((System.currentTimeMillis() - start[0]) / 1000 + " seconds");
    System.out.println("SUCCESS: " + handler.getSuccess());
    System.out.println("ERROR  : " + handler.getError());
}

From source file:ch.rasc.wampspring.demo.client.Publisher.java

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

    WebSocketClient webSocketClient = new StandardWebSocketClient();
    final JsonFactory jsonFactory = new MappingJsonFactory(new ObjectMapper());

    final CountDownLatch welcomeLatch = new CountDownLatch(1);
    final CountDownLatch latch = new CountDownLatch(1_000_000);
    TextWebSocketHandler handler = new TextWebSocketHandler() {

        @Override//from  ww  w.ja va  2s . c  om
        protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
            WampMessage wampMessage = WampMessage.fromJson(jsonFactory, message.getPayload());

            if (wampMessage instanceof WelcomeMessage) {
                latch.countDown();
            }

        }

    };

    Long[] start = new Long[1];
    ListenableFuture<WebSocketSession> future = webSocketClient.doHandshake(handler,
            "ws://localhost:8080/wamp");
    future.addCallback(wss -> {

        // Waiting for WELCOME message
        try {
            welcomeLatch.await(5, TimeUnit.SECONDS);

            start[0] = System.currentTimeMillis();
            for (int i = 0; i < 1_000_000; i++) {
                PublishMessage publishMessage = new PublishMessage("/test/myqueue", i);
                try {
                    wss.sendMessage(new TextMessage(publishMessage.toJson(jsonFactory)));
                } catch (Exception e) {
                    System.out.println("ERROR SENDING PUBLISH_MESSAGE" + e);
                }
                latch.countDown();
            }

        } catch (Exception e1) {
            System.out.println("SENDING PUBLISH MESSAGES: " + e1);
        }

    }, t -> {
        System.out.println("DO HANDSHAKE ERROR: " + t);
        System.exit(1);
    });

    if (!latch.await(3, TimeUnit.MINUTES)) {
        System.out.println("SOMETHING WENT WRONG");
    }
    System.out.println((System.currentTimeMillis() - start[0]) / 1000 + " seconds");
}

From source file:com.github.liyp.dubbo.consumer.Consumer.java

public static void main(String[] args) throws Exception {
    ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
            new String[] { "com/github/liyp/dubbo/consumer/consumer.xml" });
    context.start();/*from  w w  w  .j  av  a2s.  co  m*/
    NotifyImpl notify = (NotifyImpl) context.getBean("callback");
    HelloService service = (HelloService) context.getBean("service");
    System.out.println("dubbo consumer running...");
    int i = 0;
    while (true) {
        String res = service.sayHello(new HelloBean(i, "lee"));
        // service.sayHello(i);
        System.out.println(ai.incrementAndGet());
        if (ai.get() >= limit) {
            locked = true;
            cdl = new CountDownLatch(limit);
            cdl.await();
            locked = false;
        }
        // Thread.sleep(1000);
        i++;
    }
}

From source file:example.topic.Subscriber.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();//from   w  w  w . j  av a 2  s .  c o m
    }
    System.out
            .println("\nWaiting to receive messages... Either waiting for END message or press Ctrl+C to exit");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;
    final CountDownLatch latch = new CountDownLatch(1);

    try {

        connection = connectionFactory.createConnection();
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Destination destination = session.createTopic("test-topic");

        MessageConsumer consumer = session.createConsumer(destination);
        consumer.setMessageListener(new Subscriber(latch));

        latch.await();
        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}

From source file:example.topic.durable.Subscriber.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/*from  w ww .  j a  va2s.  c o m*/
    }
    System.out
            .println("\nWaiting to receive messages... Either waiting for END message or press Ctrl+C to exit");
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;
    final CountDownLatch latch = new CountDownLatch(1);

    try {

        connection = connectionFactory.createConnection();
        String clientId = System.getProperty("clientId");
        connection.setClientID(clientId);

        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Topic destination = session.createTopic("test-topic");

        MessageConsumer consumer = session.createDurableSubscriber(destination, clientId);
        consumer.setMessageListener(new Subscriber(latch));

        latch.await();
        consumer.close();
        session.close();

    } catch (Exception e) {
        System.out.println("Caught exception!");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                System.out.println("Could not close an open connection...");
            }
        }
    }
}