Examples of CountDown

EDU.oswego.cs.dl.util.concurrent.CountDown
void main() { CountDown done = new CountDown(N); for (int i = 0; i < N; ++i) new Thread(new Worker(done)).start(); doSomethingElse(); done.acquire(); // wait for all to finish } }
[ Introduction to this package. ]
com.jayway.awaitility.support.CountDown
com.volantis.shared.time.Countdown
An abstraction of a clock that counts down.
org.elasticsearch.common.util.concurrent.CountDown
A simple thread safe count-down class that in contrast to a {@link CountDownLatch}never blocks. This class is useful if a certain action has to wait for N concurrent tasks to return or a timeout to occur in order to proceed.

Examples of EDU.oswego.cs.dl.util.concurrent.CountDown

      getLog().debug("Starting create queue test");


      connect();
      queueConnection.start();
      drainQueue();
      final CountDown counter1 = new CountDown(3);


      Session session = queueConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      Queue queue = (Queue) context.lookup(TEST_QUEUE);


      MessageConsumer receiver = session.createConsumer(queue);
      receiver.setMessageListener(new MessageListener()
      {
         public void onMessage(Message msg)
         {
            Logger log = Logger.getLogger(getClass().getName());
            log.debug("ML");
            try
            {
               if (msg instanceof TextMessage)
               {
                  log.debug(((TextMessage) msg).getText());
                  counter1.release();
               }
            }
            catch (Exception e)
            {
            }
         }
      });


      MessageProducer sender = session.createProducer(queue);


      TextMessage message = session.createTextMessage();
      message.setText("Normal message");
      sender.send(message, DeliveryMode.NON_PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.NON_PERSISTENT, 4, 0);
      message.setText("Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 4, 0);
      message.setText("High Priority Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 10, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 10, 0);


      // Wait for the msgs to be received
      counter1.acquire();
      log.debug("MessageListener1 received the TMs sent");


      final CountDown counter2 = new CountDown(2);
      receiver.setMessageListener(new MessageListener()
      {
         public void onMessage(Message msg)
         {
            Logger log = Logger.getLogger(getClass().getName());
            log.debug("ML 2");
            try
            {
               if (msg instanceof TextMessage)
               {
                  log.debug(((TextMessage) msg).getText());
                  counter2.release();
               }
            }
            catch (Exception e)
            {
            }
         }
      });


      message.setText("Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 4, 0);
      message.setText("High Priority Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 10, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 10, 0);


      // Wait for the msgs to be received
      counter2.acquire();
      log.debug("MessageListener2 received the TMs sent");


      receiver.setMessageListener(null);


      message.setText("Persistent message");

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown

      getLog().debug("Starting create queue test");


      connect();
      queueConnection.start();
      drainQueue();
      final CountDown counter1 = new CountDown(3);


      QueueSession session = queueConnection.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
      Queue queue = (Queue) context.lookup(TEST_QUEUE);


      QueueReceiver receiver = session.createReceiver(queue);
      receiver.setMessageListener(new MessageListener()
      {
         public void onMessage(Message msg)
         {
            Logger log = Logger.getLogger(getClass().getName());
            log.debug("ML");
            try
            {
               if (msg instanceof TextMessage)
               {
                  log.debug(((TextMessage) msg).getText());
                  counter1.release();
               }
            }
            catch (Exception e)
            {
            }
         }
      });


      QueueSender sender = session.createSender(queue);


      TextMessage message = session.createTextMessage();
      message.setText("Normal message");
      sender.send(message, DeliveryMode.NON_PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.NON_PERSISTENT, 4, 0);
      message.setText("Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 4, 0);
      message.setText("High Priority Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 10, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 10, 0);


      // Wait for the msgs to be received
      counter1.acquire();
      log.debug("MessageListener1 received the TMs sent");


      final CountDown counter2 = new CountDown(2);
      receiver.setMessageListener(new MessageListener()
      {
         public void onMessage(Message msg)
         {
            Logger log = Logger.getLogger(getClass().getName());
            log.debug("ML 2");
            try
            {
               if (msg instanceof TextMessage)
               {
                  log.debug(((TextMessage) msg).getText());
                  counter2.release();
               }
            }
            catch (Exception e)
            {
            }
         }
      });


      message.setText("Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 4, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 4, 0);
      message.setText("High Priority Persistent message");
      sender.send(message, DeliveryMode.PERSISTENT, 10, 0);
      //sender.send(queue, message, DeliveryMode.PERSISTENT, 10, 0);


      // Wait for the msgs to be received
      counter2.acquire();
      log.debug("MessageListener2 received the TMs sent");


      receiver.setMessageListener(null);


      message.setText("Persistent message");

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown

      super(name);
   }


   public void testPooling() throws Exception
   {
      CountDown done = new CountDown(MAX_SIZE);
      InitialContext ctx = new InitialContext();
      QueueConnectionFactory factory = (QueueConnectionFactory) ctx.lookup(QUEUE_FACTORY);
      QueueConnection queConn = factory.createQueueConnection();
      Queue queueA = (Queue) ctx.lookup("queue/A");
      Queue queueB = (Queue) ctx.lookup("queue/B");
      queConn.start();
      MDBInvoker[] threads = new MDBInvoker[MAX_SIZE];
      for(int n = 0; n < MAX_SIZE; n ++)
      {
       // Each thread should own its own session, accordingly to the JMS spec
         QueueSession session = queConn.createQueueSession(false, QueueSession.AUTO_ACKNOWLEDGE);
         MDBInvoker t = new MDBInvoker(session, queueA, queueB, n, done, getLog());
         threads[n] = t;
         t.start();
      }
      assertTrue("Acquired done", done.attempt(1500 * MAX_SIZE));
      queConn.close();


      for(int n = 0; n < MAX_SIZE; n ++)
      {
         MDBInvoker t = threads[n];

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown

      UnicastRemoteObject.unexportObject(callback, true);
   }


   public void testStrictPooling() throws Exception
   {
      CountDown done = new CountDown(MAX_SIZE);
      InitialContext ctx = new InitialContext();
      StrictlyPooledSessionHome home = (StrictlyPooledSessionHome)
            ctx.lookup("ejbcts/StrictlyPooledStatelessBean");
      SessionInvoker[] threads = new SessionInvoker[MAX_SIZE];
      for (int n = 0; n < MAX_SIZE; n++)
      {
         SessionInvoker t = new SessionInvoker(home, n, done, getLog());
         threads[n] = t;
         t.start();
      }
      assertTrue("Acquired done", done.attempt(1500 * MAX_SIZE));


      for (int n = 0; n < MAX_SIZE; n++)
      {
         SessionInvoker t = threads[n];
         if (t.runEx != null)

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown

        public LoaderThread(Source source, 
                            XMLSerializer serializer,
                            ServiceManager manager) {
            this.source = source;
            this.serializer = serializer;
            this.finished = new CountDown( 1 );
            this.manager = manager;
        }

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown

        
        public LoaderThread(Source source, 
                            XMLByteStreamCompiler serializer) {
            this.source = source;
            this.serializer = serializer;
            this.finished = new CountDown( 1 );
        }

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown


        tp.doStop();
    }


    public void setUp() throws Exception {
        completed = new CountDown(COUNT);
    }

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown


        tp.doStop();
    }


    public void setUp() throws Exception {
        completed = new CountDown(COUNT);
    }

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown


            public void flush() {
            }
        });


        aps.push(simpleCounter = new TestCountingProtocol(simpleCompleted =  new CountDown(MESSAGE_COUNT)));
        aps.push(concurrentCounter = new TestCountingProtocol(concurrentCompleted = new CountDown(WORKERS * MESSAGE_COUNT)));


        aps.push(new AbstractProtocol() {
            public void setup() {
            }

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Examples of EDU.oswego.cs.dl.util.concurrent.CountDown


    public void setUp() throws Exception {
        startLatch = new Latch();
        shutdownLatch = new Latch();
        stopLatch = new Latch();
        completed = new CountDown(COUNT);
        try {
            properties = new Properties();
            try {
                properties.load(new File(System.getProperty("user.home") + "/login.properties").toURI().toURL().openStream());
            } catch (IOException e) {

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