Examples of org.apache.activemq.advisory.ConsumerEventSource

org.apache.activemq.advisory.ConsumerEventSource
An object which can be used to listen to the number of active consumers available on a given destination. @version $Revision: 564271 $

    
    protected void assertConsumersConnect(String brokerName, Destination destination, final int count, long timeout) throws Exception {
        BrokerItem brokerItem = brokers.get(brokerName);
        Connection conn = brokerItem.createConnection();
        conn.start();
        ConsumerEventSource ces = new ConsumerEventSource(conn, destination);


        try {
          final AtomicInteger actualConnected = new AtomicInteger();
          final CountDownLatch latch = new CountDownLatch(1);        
          ces.setConsumerListener(new ConsumerListener(){
        public void onConsumerEvent(ConsumerEvent event) {
          if( actualConnected.get() < count ) {
            actualConnected.set(event.getConsumerCount());
          }
          if( event.getConsumerCount() >= count ) {
            latch.countDown();
          }        
        }
      });
          ces.start();
          
          latch.await(timeout, TimeUnit.MILLISECONDS);
          assertTrue("Expected at least "+count+" consumers to connect, but only "+actualConnected.get()+" connectect within "+timeout+" ms", actualConnected.get() >= count);
          
        } finally {
            ces.stop();
            conn.close();
            brokerItem.connections.remove(conn);
        }
    }

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        final AtomicInteger rc = new AtomicInteger(0);
        Connection connection = cf.createConnection();
        connections.add(connection);
        connection.start();


        ConsumerEventSource source = new ConsumerEventSource(connection, destination);
        source.setConsumerListener(new ConsumerListener() {
            public void onConsumerEvent(ConsumerEvent event) {
                rc.set(event.getConsumerCount());
            }
        });
        source.start();


        return rc;
    }

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        final AtomicInteger rc = new AtomicInteger(0);
        Connection connection = cf.createConnection();
        connections.add(connection);
        connection.start();


        ConsumerEventSource source = new ConsumerEventSource(connection, destination);
        source.setConsumerListener(new ConsumerListener() {
            public void onConsumerEvent(ConsumerEvent event) {
                rc.set(event.getConsumerCount());
            }
        });
        source.start();


        return rc;
    }

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    protected void assertConsumersConnect(String brokerName, Destination destination, final int count, long timeout) throws Exception {
        BrokerItem brokerItem = brokers.get(brokerName);
        Connection conn = brokerItem.createConnection();
        conn.start();
        ConsumerEventSource ces = new ConsumerEventSource(conn, destination);


        try {
          final AtomicInteger actualConnected = new AtomicInteger();
          final CountDownLatch latch = new CountDownLatch(1);        
          ces.setConsumerListener(new ConsumerListener(){
        public void onConsumerEvent(ConsumerEvent event) {
          if( actualConnected.get() < count ) {
            actualConnected.set(event.getConsumerCount());
          }
          if( event.getConsumerCount() >= count ) {
            latch.countDown();
          }        
        }
      });
          ces.start();
          
          latch.await(timeout, TimeUnit.MILLISECONDS);
          assertTrue("Expected at least "+count+" consumers to connect, but only "+actualConnected.get()+" connectect within "+timeout+" ms", actualConnected.get() >= count);
          
        } finally {
            ces.stop();
            conn.close();
            brokerItem.connections.remove(conn);
        }
    }

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        final AtomicInteger rc = new AtomicInteger(0);
        Connection connection = cf.createConnection();
        connections.add(connection);
        connection.start();


        ConsumerEventSource source = new ConsumerEventSource(connection, destination);
        source.setConsumerListener(new ConsumerListener() {
            public void onConsumerEvent(ConsumerEvent event) {
                rc.set(event.getConsumerCount());
            }
        });
        source.start();


        return rc;
    }

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        final AtomicInteger rc = new AtomicInteger(0);
        Connection connection = cf.createConnection();
        connections.add(connection);
        connection.start();


        ConsumerEventSource source = new ConsumerEventSource(connection, destination);
        source.setConsumerListener(new ConsumerListener() {
            public void onConsumerEvent(ConsumerEvent event) {
                rc.set(event.getConsumerCount());
            }
        });
        source.start();


        return rc;
    }

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    protected void assertConsumersConnect(String brokerName, Destination destination, final int count, long timeout) throws Exception {
        BrokerItem brokerItem = brokers.get(brokerName);
        Connection conn = brokerItem.createConnection();
        conn.start();
        ConsumerEventSource ces = new ConsumerEventSource(conn, destination);


        try {
          final AtomicInteger actualConnected = new AtomicInteger();
          final CountDownLatch latch = new CountDownLatch(1);        
          ces.setConsumerListener(new ConsumerListener(){
        public void onConsumerEvent(ConsumerEvent event) {
          if( actualConnected.get() < count ) {
            actualConnected.set(event.getConsumerCount());
          }
          if( event.getConsumerCount() >= count ) {
            latch.countDown();
          }        
        }
      });
          ces.start();
          
          latch.await(timeout, TimeUnit.MILLISECONDS);
          assertTrue("Expected at least "+count+" consumers to connect, but only "+actualConnected.get()+" connectect within "+timeout+" ms", actualConnected.get() >= count);
          
        } finally {
            ces.stop();
            conn.close();
            brokerItem.connections.remove(conn);
        }
    }

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        final AtomicInteger rc = new AtomicInteger(0);
        Connection connection = cf.createConnection();
        connections.add(connection);
        connection.start();


        ConsumerEventSource source = new ConsumerEventSource(connection, destination);
        source.setConsumerListener(new ConsumerListener() {
            public void onConsumerEvent(ConsumerEvent event) {
                rc.set(event.getConsumerCount());
            }
        });
        source.start();


        return rc;
    }

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  @Override
  protected void start() throws PublisherRegistrationFailedFault {
    if (demand) {
      try {
        advisory = new ConsumerEventSource(connection, jmsTopic);
        advisory.setConsumerListener(this);
        advisory.start();
      } catch (Exception e) {
        PublisherRegistrationFailedFaultType fault = new PublisherRegistrationFailedFaultType();
        throw new PublisherRegistrationFailedFault("Error starting demand-based publisher", fault, e);

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    protected void assertConsumersConnect(String brokerName, Destination destination, final int count, long timeout) throws Exception {
        BrokerItem brokerItem = brokers.get(brokerName);
        Connection conn = brokerItem.createConnection();
        conn.start();
        ConsumerEventSource ces = new ConsumerEventSource(conn, destination);


        try {
          final AtomicInteger actualConnected = new AtomicInteger();
          final CountDownLatch latch = new CountDownLatch(1);        
          ces.setConsumerListener(new ConsumerListener(){
        public void onConsumerEvent(ConsumerEvent event) {
          if( actualConnected.get() < count ) {
            actualConnected.set(event.getConsumerCount());
          }
          if( event.getConsumerCount() >= count ) {
            latch.countDown();
          }        
        }
      });
          ces.start();
          
          latch.await(timeout, TimeUnit.MILLISECONDS);
          assertTrue("Expected at least "+count+" consumers to connect, but only "+actualConnected.get()+" connectect within "+timeout+" ms", actualConnected.get() >= count);
          
        } finally {
            ces.stop();
            conn.close();
            brokerItem.connections.remove(conn);
        }
    }

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