Example usage for javax.jms Session createDurableSubscriber

Introduction

In this page you can find the example usage for javax.jms Session createDurableSubscriber.

Prototype

TopicSubscriber createDurableSubscriber(Topic topic, String name) throws JMSException;

Source Link

Document

Creates an unshared durable subscription on the specified topic (if one does not already exist) and creates a consumer on that durable subscription.

Usage

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();// w w w  .  j av  a  2s .  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...");
            }
        }
    }
}

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From source file:com.fusesource.examples.activemq.DurableSubscriber.java

public static void main(String args[]) {
    Connection connection = null;

    try {//from  www. j  a  va 2  s  .  c o  m
        // JNDI lookup of JMS Connection Factory and JMS Destination
        Context context = new InitialContext();
        ConnectionFactory factory = (ConnectionFactory) context.lookup(CONNECTION_FACTORY_NAME);
        connection = factory.createConnection();
        connection.setClientID(System.getProperty("clientID"));
        connection.start();

        Session session = connection.createSession(NON_TRANSACTED, Session.CLIENT_ACKNOWLEDGE);
        String topicName = System.getProperty("topic");

        Topic topic = session.createTopic(topicName);
        MessageConsumer consumer = session.createDurableSubscriber(topic, "Test_Durable_Subscriber");

        LOG.info("Start consuming messages from " + topicName + " with " + MESSAGE_TIMEOUT_MILLISECONDS
                + "ms timeout");

        // Synchronous message consumer
        int i = 1;
        while (true) {
            Message message = consumer.receive(MESSAGE_TIMEOUT_MILLISECONDS);
            if (message != null) {
                if (message instanceof TextMessage) {
                    String text = ((TextMessage) message).getText();
                    LOG.info("Got " + (i++) + ". message: " + text);
                }
            } else {
                break;
            }
        }

        consumer.close();
        session.close();
    } catch (Throwable t) {
        LOG.error(t);
    } finally {
        // Cleanup code
        // In general, you should always close producers, consumers,
        // sessions, and connections in reverse order of creation.
        // For this simple example, a JMS connection.close will
        // clean up all other resources.
        if (connection != null) {
            try {
                connection.close();
            } catch (JMSException e) {
                LOG.error(e);
            }
        }
    }
}

---

From source file:org.apache.activemq.bugs.AMQ6131Test.java

@Test(timeout = 300000)
public void testDurableWithOnePendingAfterRestartAndIndexRecovery() throws Exception {
    final File persistentDir = getPersistentDir();

    broker.getBroker().addDestination(broker.getAdminConnectionContext(), new ActiveMQTopic("durable.sub"),
            false);//  w w  w . j av a 2s.co  m

    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(this.brokerConnectURI);
    ActiveMQConnection connection = (ActiveMQConnection) connectionFactory.createConnection();
    connection.setClientID("myId");
    connection.start();
    final Session jmsSession = connection.createSession(false, javax.jms.Session.AUTO_ACKNOWLEDGE);

    TopicSubscriber durable = jmsSession.createDurableSubscriber(new ActiveMQTopic("durable.sub"), "sub");
    final MessageProducer producer = jmsSession.createProducer(new ActiveMQTopic("durable.sub"));

    final int original = new ArrayList<File>(
            FileUtils.listFiles(persistentDir, new WildcardFileFilter("*.log"), TrueFileFilter.INSTANCE))
                    .size();

    // 100k messages
    final byte[] data = new byte[100000];
    final Random random = new Random();
    random.nextBytes(data);

    // run test with enough messages to create a second journal file
    final AtomicInteger messageCount = new AtomicInteger();
    assertTrue("Should have added a journal file", Wait.waitFor(new Condition() {

        @Override
        public boolean isSatisified() throws Exception {
            final ActiveMQBytesMessage message = new ActiveMQBytesMessage();
            message.setContent(new ByteSequence(data));

            for (int i = 0; i < 100; i++) {
                producer.send(message);
                messageCount.getAndIncrement();
            }

            return new ArrayList<File>(FileUtils.listFiles(persistentDir, new WildcardFileFilter("*.log"),
                    TrueFileFilter.INSTANCE)).size() > original;
        }
    }));

    // Consume all but 1 message
    for (int i = 0; i < messageCount.get() - 1; i++) {
        durable.receive();
    }

    durable.close();

    // wait until a journal file has been GC'd after receiving messages
    assertTrue("Subscription should go inactive", Wait.waitFor(new Condition() {
        @Override
        public boolean isSatisified() throws Exception {
            return broker.getAdminView().getInactiveDurableTopicSubscribers().length == 1;
        }
    }));

    // force a GC of unneeded journal files
    getBroker().getPersistenceAdapter().checkpoint(true);

    // wait until a journal file has been GC'd after receiving messages
    assertFalse("Should not have garbage collected", Wait.waitFor(new Wait.Condition() {

        @Override
        public boolean isSatisified() throws Exception {
            return new ArrayList<File>(FileUtils.listFiles(persistentDir, new WildcardFileFilter("*.log"),
                    TrueFileFilter.INSTANCE)).size() == original;
        }
    }, 5000, 500));

    // stop the broker so we can blow away the index
    getBroker().stop();
    getBroker().waitUntilStopped();

    // delete the index so that the durables are gone from the index
    // The test passes if you take out this delete section
    for (File index : FileUtils.listFiles(persistentDir, new WildcardFileFilter("db.*"),
            TrueFileFilter.INSTANCE)) {
        FileUtils.deleteQuietly(index);
    }

    stopBroker();
    setUpBroker(false);

    assertEquals(1, broker.getAdminView().getInactiveDurableTopicSubscribers().length);
    assertEquals(0, broker.getAdminView().getDurableTopicSubscribers().length);

    ActiveMQConnectionFactory connectionFactory2 = new ActiveMQConnectionFactory(this.brokerConnectURI);
    ActiveMQConnection connection2 = (ActiveMQConnection) connectionFactory2.createConnection();
    connection2.setClientID("myId");
    connection2.start();
    final Session jmsSession2 = connection2.createSession(false, javax.jms.Session.AUTO_ACKNOWLEDGE);

    TopicSubscriber durable2 = jmsSession2.createDurableSubscriber(new ActiveMQTopic("durable.sub"), "sub");

    assertEquals(0, broker.getAdminView().getInactiveDurableTopicSubscribers().length);
    assertEquals(1, broker.getAdminView().getDurableTopicSubscribers().length);

    assertNotNull(durable2.receive(5000));
}

---

From source file:org.apache.activemq.bugs.AMQ6131Test.java

@Test(timeout = 300000)
public void testDurableWithNoMessageAfterRestartAndIndexRecovery() throws Exception {
    final File persistentDir = getPersistentDir();

    broker.getBroker().addDestination(broker.getAdminConnectionContext(), new ActiveMQTopic("durable.sub"),
            false);/* w w w.  j a va2s . c  om*/

    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(this.brokerConnectURI);
    ActiveMQConnection connection = (ActiveMQConnection) connectionFactory.createConnection();
    connection.setClientID("myId");
    connection.start();
    final Session jmsSession = connection.createSession(false, javax.jms.Session.AUTO_ACKNOWLEDGE);

    TopicSubscriber durable = jmsSession.createDurableSubscriber(new ActiveMQTopic("durable.sub"), "sub");
    final MessageProducer producer = jmsSession.createProducer(new ActiveMQTopic("durable.sub"));

    final int original = new ArrayList<File>(
            FileUtils.listFiles(persistentDir, new WildcardFileFilter("*.log"), TrueFileFilter.INSTANCE))
                    .size();

    // 100k messages
    final byte[] data = new byte[100000];
    final Random random = new Random();
    random.nextBytes(data);

    // run test with enough messages to create a second journal file
    final AtomicInteger messageCount = new AtomicInteger();
    assertTrue("Should have added a journal file", Wait.waitFor(new Condition() {

        @Override
        public boolean isSatisified() throws Exception {
            final ActiveMQBytesMessage message = new ActiveMQBytesMessage();
            message.setContent(new ByteSequence(data));

            for (int i = 0; i < 100; i++) {
                producer.send(message);
                messageCount.getAndIncrement();
            }

            return new ArrayList<File>(FileUtils.listFiles(persistentDir, new WildcardFileFilter("*.log"),
                    TrueFileFilter.INSTANCE)).size() > original;
        }
    }));

    // Consume all messages
    for (int i = 0; i < messageCount.get(); i++) {
        durable.receive();
    }

    durable.close();

    assertTrue("Subscription should go inactive", Wait.waitFor(new Condition() {
        @Override
        public boolean isSatisified() throws Exception {
            return broker.getAdminView().getInactiveDurableTopicSubscribers().length == 1;
        }
    }));

    // force a GC of unneeded journal files
    getBroker().getPersistenceAdapter().checkpoint(true);

    // wait until a journal file has been GC'd after receiving messages
    assertTrue("Should have garbage collected", Wait.waitFor(new Wait.Condition() {

        @Override
        public boolean isSatisified() throws Exception {
            return new ArrayList<File>(FileUtils.listFiles(persistentDir, new WildcardFileFilter("*.log"),
                    TrueFileFilter.INSTANCE)).size() == original;
        }
    }));

    // stop the broker so we can blow away the index
    getBroker().stop();
    getBroker().waitUntilStopped();

    // delete the index so that the durables are gone from the index
    // The test passes if you take out this delete section
    for (File index : FileUtils.listFiles(persistentDir, new WildcardFileFilter("db.*"),
            TrueFileFilter.INSTANCE)) {
        FileUtils.deleteQuietly(index);
    }

    stopBroker();
    setUpBroker(false);

    assertEquals(1, broker.getAdminView().getInactiveDurableTopicSubscribers().length);
    assertEquals(0, broker.getAdminView().getDurableTopicSubscribers().length);

    ActiveMQConnectionFactory connectionFactory2 = new ActiveMQConnectionFactory(this.brokerConnectURI);
    ActiveMQConnection connection2 = (ActiveMQConnection) connectionFactory2.createConnection();
    connection2.setClientID("myId");
    connection2.start();
    final Session jmsSession2 = connection2.createSession(false, javax.jms.Session.AUTO_ACKNOWLEDGE);

    TopicSubscriber durable2 = jmsSession2.createDurableSubscriber(new ActiveMQTopic("durable.sub"), "sub");

    assertEquals(0, broker.getAdminView().getInactiveDurableTopicSubscribers().length);
    assertEquals(1, broker.getAdminView().getDurableTopicSubscribers().length);

    assertNull(durable2.receive(500));
}

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From source file:org.apache.activemq.store.kahadb.MultiKahaDBTopicDeletionTest.java

@Override
protected void createConsumer(ActiveMQDestination dest) throws JMSException {
    ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(brokerConnectURI);
    Connection connection = factory.createConnection();
    connection.setClientID("client1");
    connection.start();//w ww. ja va  2  s.  c o  m
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    session.createDurableSubscriber((Topic) dest, "sub1");
}

---

From source file:org.apache.activemq.store.kahadb.SubscriptionRecoveryTest.java

private void createInactiveDurableSub(Topic topic) throws Exception {
    Connection connection = cf.createConnection();
    connection.setClientID("Inactive");
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createDurableSubscriber(topic, "Inactive");
    consumer.close();//from w  w  w  . j  a  va  2  s  .  co m
    connection.close();
}

---

From source file:org.apache.activemq.store.kahadb.SubscriptionRecoveryTest.java

private void consumeDurableMessages(Topic topic, int count) throws Exception {
    Connection connection = cf.createConnection();
    connection.setClientID("Inactive");
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createDurableSubscriber(topic, "Inactive");
    connection.start();//  ww  w . j ava 2  s  .com
    for (int i = 0; i < count; ++i) {
        if (consumer.receive(TimeUnit.SECONDS.toMillis(10)) == null) {
            fail("should have received a message");
        }
    }
    consumer.close();
    connection.close();
}

---

From source file:org.apache.activemq.store.kahadb.SubscriptionRecoveryTest.java

private void tryConsumeExpectNone(Topic topic) throws Exception {
    Connection connection = cf.createConnection();
    connection.setClientID("Inactive");
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createDurableSubscriber(topic, "Inactive");
    connection.start();/*w  ww  .  j  a  v  a 2  s . c  om*/
    if (consumer.receive(TimeUnit.SECONDS.toMillis(10)) != null) {
        fail("Should be no messages for this durable.");
    }
    consumer.close();
    connection.close();
}

---

From source file:org.apache.activemq.store.kahadb.SubscriptionRecoveryTest.java

private int consumeFromInactiveDurableSub(Topic topic) throws Exception {
    Connection connection = cf.createConnection();
    connection.setClientID("Inactive");
    connection.start();//from   w ww.  j  ava2  s . co  m
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    MessageConsumer consumer = session.createDurableSubscriber(topic, "Inactive");

    int count = 0;

    while (consumer.receive(10000) != null) {
        count++;
    }

    consumer.close();
    connection.close();

    return count;
}

---

From source file:org.apache.activemq.usecases.ConcurrentProducerDurableConsumerTest.java

protected TopicSubscriber createDurableSubscriber(Connection conn, Destination dest, String name)
        throws Exception {
    conn.setClientID(name);//from   w  ww  . j  a  v  a2 s .  co  m
    connections.add(conn);
    conn.start();

    Session sess = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
    final TopicSubscriber consumer = sess.createDurableSubscriber((javax.jms.Topic) dest, name);

    return consumer;
}

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