Java TopicSubscriber类代码示例

import javax.jms.TopicSubscriber; //导入依赖的package包/类
public void testWithSessionCloseOutsideTheLoop() throws Exception {

      TopicConnection connection = connectionFactory.createTopicConnection();
      connection.start();
      TopicSession subscriberSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
      for (int i = 0; i < 100; i++) {

         TopicSubscriber subscriber = subscriberSession.createSubscriber(topic);
         DummyMessageListener listener = new DummyMessageListener();
         subscriber.setMessageListener(listener);
         subscriber.close();
      }
      subscriberSession.close();
      connection.close();
      Thread.sleep(1000);
      Destination dest = backEnd.getRegionBroker().getDestinationMap().get(topic);
      assertNotNull(dest);
      assertTrue(dest.getConsumers().isEmpty());

   }
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
@Test
public void testGetTopic() throws JMSException {
    JmsPoolConnection connection = (JmsPoolConnection) cf.createTopicConnection();
    TopicSession session = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
    Topic topic = session.createTemporaryTopic();
    TopicSubscriber subscriber = session.createSubscriber(topic);

    assertNotNull(subscriber.getTopic());
    assertSame(topic, subscriber.getTopic());

    subscriber.close();

    try {
        subscriber.getTopic();
        fail("Cannot read topic on closed subscriber");
    } catch (IllegalStateException ise) {}
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
@Test
public void testGetNoLocal() throws JMSException {
    JmsPoolConnection connection = (JmsPoolConnection) cf.createTopicConnection();
    TopicSession session = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
    Topic topic = session.createTemporaryTopic();
    TopicSubscriber subscriber = session.createDurableSubscriber(topic, "name", "color = red", true);

    assertTrue(subscriber.getNoLocal());

    subscriber.close();

    try {
        subscriber.getNoLocal();
        fail("Cannot read state on closed subscriber");
    } catch (IllegalStateException ise) {}
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
public JMSSink(final String tcfBindingName, final String topicBindingName, final String username,
               final String password) {

   try {
      final Context ctx = new InitialContext();
      final TopicConnectionFactory topicConnectionFactory = (TopicConnectionFactory) lookup(ctx,
              tcfBindingName);

      final TopicConnection topicConnection =
              topicConnectionFactory.createTopicConnection(username,
                      password);
      topicConnection.start();

      final TopicSession topicSession = topicConnection.createTopicSession(false,
              Session.AUTO_ACKNOWLEDGE);

      final Topic topic = (Topic) ctx.lookup(topicBindingName);

      final TopicSubscriber topicSubscriber = topicSession.createSubscriber(topic);

      topicSubscriber.setMessageListener(this);

   } catch (final Exception e) {
      logger.error("Could not read JMS message.", e);
   }
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
/**
 * Close a JMS {@link MessageConsumer}.
 * @param messageConsumer JMS Message Consumer that needs to be closed.
 * @throws JMSException if an error occurs while closing the consumer.
 */
public void closeConsumer(MessageConsumer messageConsumer) throws JMSException {
    if (messageConsumer != null) {
        if (logger.isDebugEnabled()) {
            logger.debug("Closing a JMS Message Consumer of: " + this.connectionFactoryString);
        }
        if ((JMSConstants.JMS_SPEC_VERSION_1_1.equals(jmsSpec)) || (JMSConstants.JMS_SPEC_VERSION_2_0
                .equals(jmsSpec))) {
            messageConsumer.close();
        } else {
            if (JMSConstants.JMSDestinationType.QUEUE.equals(this.destinationType)) {
                if (messageConsumer instanceof QueueReceiver) {
                    ((QueueReceiver) messageConsumer).close();
                }
            } else {
                if (messageConsumer instanceof  TopicSubscriber) {
                    ((TopicSubscriber) messageConsumer).close();
                }
            }
        }
    }
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
@Test
public void testNotificationProperties() throws Exception {
   try (TopicConnection topicConnection = factory.createTopicConnection()) {
      TopicSession topicSession = topicConnection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
      Topic notificationsTopic = topicSession.createTopic("activemq.notifications");
      TopicSubscriber subscriber = topicSession.createSubscriber(notificationsTopic);
      List<Message> receivedMessages = new CopyOnWriteArrayList<>();
      subscriber.setMessageListener(receivedMessages::add);
      topicConnection.start();

      Wait.waitFor(() -> receivedMessages.size() > 0);

      Assert.assertTrue(receivedMessages.size() > 0);

      for (Message message : receivedMessages) {
         assertNotNull(message);
         assertNotNull(message.getStringProperty("_AMQ_NotifType"));
      }
   }
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
@Test(timeout = 60000)
public void testSendAndReceiveOnTopic() throws Exception {
   Connection connection = createConnection("myClientId");

   try {
      TopicSession session = (TopicSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      Topic topic = session.createTopic(getTopicName());
      TopicSubscriber consumer = session.createSubscriber(topic);
      TopicPublisher producer = session.createPublisher(topic);

      TextMessage message = session.createTextMessage("test-message");
      producer.send(message);

      producer.close();
      connection.start();

      message = (TextMessage) consumer.receive(1000);

      assertNotNull(message);
      assertNotNull(message.getText());
      assertEquals("test-message", message.getText());
   } finally {
      connection.close();
   }
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
@Test(timeout = 60000)
public void testDurableSubscriptionUnsubscribe() throws Exception {
   Connection connection = createConnection("myClientId");

   try {
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      Topic topic = session.createTopic(getTopicName());
      TopicSubscriber myDurSub = session.createDurableSubscriber(topic, "myDurSub");
      session.close();
      connection.close();

      connection = createConnection("myClientId");
      session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      myDurSub = session.createDurableSubscriber(topic, "myDurSub");
      myDurSub.close();

      Assert.assertNotNull(server.getPostOffice().getBinding(new SimpleString("myClientId.myDurSub")));
      session.unsubscribe("myDurSub");
      Assert.assertNull(server.getPostOffice().getBinding(new SimpleString("myClientId.myDurSub")));
      session.close();
      connection.close();
   } finally {
      connection.close();
   }
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
public void testWithSessionAndSubsciberClose() throws Exception {

      TopicConnection connection = connectionFactory.createTopicConnection();
      connection.start();

      for (int i = 0; i < 100; i++) {
         TopicSession subscriberSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
         TopicSubscriber subscriber = subscriberSession.createSubscriber(topic);
         DummyMessageListener listener = new DummyMessageListener();
         subscriber.setMessageListener(listener);
         subscriber.close();
         subscriberSession.close();
      }
      connection.close();
      Thread.sleep(1000);
      Destination dest = backEnd.getRegionBroker().getDestinationMap().get(topic);
      assertNotNull(dest);
      assertTrue(dest.getConsumers().isEmpty());
   }
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
public void testWithOneSubscriber() throws Exception {

      TopicConnection connection = connectionFactory.createTopicConnection();
      connection.start();
      TopicSession subscriberSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);

      TopicSubscriber subscriber = subscriberSession.createSubscriber(topic);
      DummyMessageListener listener = new DummyMessageListener();
      subscriber.setMessageListener(listener);
      subscriber.close();
      subscriberSession.close();
      connection.close();
      Thread.sleep(1000);
      Destination dest = backEnd.getRegionBroker().getDestinationMap().get(topic);
      assertNotNull(dest);
      assertTrue(dest.getConsumers().isEmpty());
   }
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
public void testWithoutSessionAndSubsciberClose() throws Exception {

      TopicConnection connection = connectionFactory.createTopicConnection();
      connection.start();

      for (int i = 0; i < 100; i++) {
         TopicSession subscriberSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
         TopicSubscriber subscriber = subscriberSession.createSubscriber(topic);
         assertNotNull(subscriber);
      }

      connection.close();
      Thread.sleep(1000);
      Destination dest = backEnd.getRegionBroker().getDestinationMap().get(topic);
      assertNotNull(dest);
      assertTrue(dest.getConsumers().isEmpty());
   }
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
/**
 * Running this test you can produce a leak of only 2 ConsumerInfo on BE
 * broker, NOT 200 as in other cases!
 */
public void testWithoutSessionAndSubsciberClosePlayAround() throws Exception {

   TopicConnection connection = connectionFactory.createTopicConnection();
   connection.start();

   for (int i = 0; i < 100; i++) {
      TopicSession subscriberSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
      TopicSubscriber subscriber = subscriberSession.createSubscriber(topic);
      DummyMessageListener listener = new DummyMessageListener();
      subscriber.setMessageListener(listener);
      if (i != 50) {
         subscriber.close();
         subscriberSession.close();
      }
   }

   connection.close();
   Thread.sleep(1000);
   Destination dest = backEnd.getRegionBroker().getDestinationMap().get(topic);
   assertNotNull(dest);
   assertTrue(dest.getConsumers().isEmpty());
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
private Message collectMessagesFromDurableSubscriptionForOneMinute() throws Exception {
   ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("vm://" + brokerName);
   TopicConnection connection = connectionFactory.createTopicConnection();

   connection.setClientID(clientID);
   TopicSession topicSession = connection.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
   Topic topic = topicSession.createTopic(topicName);
   connection.start();
   TopicSubscriber subscriber = topicSession.createDurableSubscriber(topic, durableSubName);
   LOG.info("About to receive messages");
   Message message = subscriber.receive(120000);
   subscriber.close();
   connection.close();
   LOG.info("collectMessagesFromDurableSubscriptionForOneMinute done");

   return message;
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
public void testRemove() throws Exception {
   Connection connection = createConnection();
   connection.setClientID("cliID");
   connection.start();
   Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   TopicSubscriber subscriber = session.createDurableSubscriber((Topic) createDestination(), "subName");
   subscriber.close();
   connection.close();

   assertTrue(Wait.waitFor(new Wait.Condition() {
      @Override
      public boolean isSatisified() throws Exception {
         return broker.getAdminView().getInactiveDurableTopicSubscribers().length == 0;
      }
   }, 15000));
}
 

import javax.jms.TopicSubscriber; //导入依赖的package包/类
public void testRemoveAfterRestart() throws Exception {
   Connection connection = createConnection();
   connection.setClientID("cliID");
   connection.start();
   Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
   TopicSubscriber subscriber = session.createDurableSubscriber((Topic) createDestination(), "subName");
   subscriber.close();
   connection.close();

   LOG.info("Broker restarting, wait for inactive cleanup afterwards.");

   restartBroker();

   LOG.info("Broker restarted, wait for inactive cleanup now.");

   assertTrue(broker.getAdminView().getInactiveDurableTopicSubscribers().length == 1);

   assertTrue(Wait.waitFor(new Wait.Condition() {
      @Override
      public boolean isSatisified() throws Exception {
         return broker.getAdminView().getInactiveDurableTopicSubscribers().length == 0;
      }
   }, 20000));
}