Example usage for javax.jms Session createBrowser

List of usage examples for javax.jms Session createBrowser

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Introduction

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

Prototype

QueueBrowser createBrowser(Queue queue) throws JMSException;

Source Link

Document

Creates a QueueBrowser object to peek at the messages on the specified queue.

Usage

From source file:example.browser.Browser.java

public static void main(String[] args) {
    String url = BROKER_URL;
    if (args.length > 0) {
        url = args[0].trim();/*from   ww  w  .  j  a  v a2  s. c o  m*/
    }
    ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
    Connection connection = null;

    try {

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

        Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
        Queue destination = session.createQueue("test-queue");
        QueueBrowser browser = session.createBrowser(destination);
        Enumeration enumeration = browser.getEnumeration();

        while (enumeration.hasMoreElements()) {
            TextMessage message = (TextMessage) enumeration.nextElement();
            System.out.println("Browsing: " + message);
            TimeUnit.MILLISECONDS.sleep(DELAY);
        }

        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:nl.nn.adapterframework.extensions.tibco.GetTibcoQueues.java

private String getQueueMessage(Session jSession, TibjmsAdmin admin, String queueName, int queueItem,
        LdapSender ldapSender) throws TibjmsAdminException, JMSException {
    QueueInfo qInfo = admin.getQueue(queueName);
    if (qInfo == null) {
        throw new JMSException(" queue [" + queueName + "] does not exist");
    }//w ww.j  av a 2 s .c o  m

    XmlBuilder qMessageXml = new XmlBuilder("qMessage");
    ServerInfo serverInfo = admin.getInfo();
    String url = serverInfo.getURL();
    qMessageXml.addAttribute("url", url);
    String resolvedUrl = getResolvedUrl(url);
    if (resolvedUrl != null) {
        qMessageXml.addAttribute("resolvedUrl", resolvedUrl);
    }
    qMessageXml.addAttribute("timestamp", DateUtils.getIsoTimeStamp());
    qMessageXml.addAttribute("startTime", DateUtils.format(serverInfo.getStartTime(), DateUtils.fullIsoFormat));
    XmlBuilder qNameXml = new XmlBuilder("qName");
    qNameXml.setCdataValue(queueName);

    Queue queue = jSession.createQueue(queueName);
    QueueBrowser queueBrowser = null;
    try {
        queueBrowser = jSession.createBrowser(queue);
        Enumeration enm = queueBrowser.getEnumeration();
        int count = 0;
        boolean found = false;
        String chompCharSizeString = AppConstants.getInstance().getString("browseQueue.chompCharSize", null);
        int chompCharSize = (int) Misc.toFileSize(chompCharSizeString, -1);

        while (enm.hasMoreElements() && !found) {
            count++;
            if (count == queueItem) {
                qNameXml.addAttribute("item", count);
                Object o = enm.nextElement();
                if (o instanceof Message) {
                    Message msg = (Message) o;
                    XmlBuilder qMessageId = new XmlBuilder("qMessageId");
                    qMessageId.setCdataValue(msg.getJMSMessageID());
                    qMessageXml.addSubElement(qMessageId);
                    XmlBuilder qTimestamp = new XmlBuilder("qTimestamp");
                    qTimestamp.setCdataValue(DateUtils.format(msg.getJMSTimestamp(), DateUtils.fullIsoFormat));
                    qMessageXml.addSubElement(qTimestamp);

                    StringBuffer sb = new StringBuffer("");
                    Enumeration propertyNames = msg.getPropertyNames();
                    while (propertyNames.hasMoreElements()) {
                        String propertyName = (String) propertyNames.nextElement();
                        Object object = msg.getObjectProperty(propertyName);
                        if (sb.length() > 0) {
                            sb.append("; ");
                        }
                        sb.append(propertyName);
                        sb.append("=");
                        sb.append(object);
                    }
                    XmlBuilder qPropsXml = new XmlBuilder("qProps");
                    qPropsXml.setCdataValue(sb.toString());

                    qMessageXml.addSubElement(qPropsXml);
                    XmlBuilder qTextXml = new XmlBuilder("qText");
                    String msgText;
                    try {
                        TextMessage textMessage = (TextMessage) msg;
                        msgText = textMessage.getText();
                    } catch (ClassCastException e) {
                        msgText = msg.toString();
                        qTextXml.addAttribute("text", false);
                    }
                    int msgSize = msgText.length();
                    if (isHideMessage()) {
                        qTextXml.setCdataValue("***HIDDEN***");
                    } else {
                        if (chompCharSize >= 0 && msgSize > chompCharSize) {
                            qTextXml.setCdataValue(msgText.substring(0, chompCharSize) + "...");
                            qTextXml.addAttribute("chomped", true);
                        } else {
                            qTextXml.setCdataValue(msgText);
                        }
                    }
                    qMessageXml.addSubElement(qTextXml);
                    XmlBuilder qTextSizeXml = new XmlBuilder("qTextSize");
                    qTextSizeXml.setValue(Misc.toFileSize(msgSize));
                    qMessageXml.addSubElement(qTextSizeXml);
                }
                found = true;
            } else {
                enm.nextElement();
            }
        }
    } finally {
        if (queueBrowser != null) {
            try {
                queueBrowser.close();
            } catch (JMSException e) {
                log.warn(getLogPrefix(null) + "exception on closing queue browser", e);
            }
        }
    }

    qMessageXml.addSubElement(qNameXml);

    Map aclMap = getAclMap(admin, ldapSender);
    XmlBuilder aclXml = new XmlBuilder("acl");
    XmlBuilder qInfoXml = qInfoToXml(qInfo);
    aclXml.setValue((String) aclMap.get(qInfo.getName()));
    qInfoXml.addSubElement(aclXml);
    qMessageXml.addSubElement(qInfoXml);

    Map consumersMap = getConnectedConsumersMap(admin);
    XmlBuilder consumerXml = new XmlBuilder("connectedConsumers");
    if (consumersMap.containsKey(qInfo.getName())) {
        LinkedList<String> consumers = (LinkedList<String>) consumersMap.get(qInfo.getName());
        String consumersString = listToString(consumers);
        if (consumersString != null) {
            consumerXml.setCdataValue(consumersString);
        }
    }
    qInfoXml.addSubElement(consumerXml);

    return qMessageXml.toXML();
}

From source file:nl.nn.adapterframework.extensions.tibco.TibcoUtils.java

protected static long getQueueFirstMessageAge(Session jSession, String queueName, String messageSelector,
        long currentTime, boolean warn) throws JMSException {
    QueueBrowser queueBrowser = null;//from   ww  w . j a  va  2  s .c om
    try {
        Queue queue = jSession.createQueue(queueName);
        if (messageSelector == null) {
            queueBrowser = jSession.createBrowser(queue);
        } else {
            queueBrowser = jSession.createBrowser(queue, messageSelector);
        }
        Enumeration enm = queueBrowser.getEnumeration();
        if (enm.hasMoreElements()) {
            Object o = enm.nextElement();
            if (o instanceof Message) {
                Message msg = (Message) o;
                long jmsTimestamp = msg.getJMSTimestamp();
                return currentTime - jmsTimestamp;
            } else {
                if (warn) {
                    log.warn("message was not of type Message, but [" + o.getClass().getName() + "]");
                }
                return -2;
            }
        } else {
            return -1;
        }
    } finally {
        if (queueBrowser != null) {
            try {
                queueBrowser.close();
            } catch (JMSException e) {
                log.warn("Exception on closing queueBrowser", e);
            }
        }
    }
}

From source file:nl.nn.adapterframework.extensions.tibco.TibcoUtils.java

protected static long getQueueMessageCount(Session jSession, String queueName, String messageSelector)
        throws JMSException {
    QueueBrowser queueBrowser = null;/*from ww w .  j  a v a2s  .c  om*/
    try {
        Queue queue = jSession.createQueue(queueName);
        if (messageSelector == null) {
            queueBrowser = jSession.createBrowser(queue);
        } else {
            queueBrowser = jSession.createBrowser(queue, messageSelector);
        }
        int count = 0;
        for (Enumeration enm = queueBrowser.getEnumeration(); enm.hasMoreElements(); enm.nextElement()) {
            count++;
        }
        return count;
    } finally {
        if (queueBrowser != null) {
            try {
                queueBrowser.close();
            } catch (JMSException e) {
                log.warn("Exception on closing queueBrowser", e);
            }
        }
    }
}

From source file:nl.nn.adapterframework.jms.JmsMessageBrowser.java

public int getMessageCount() throws ListenerException {
    QueueBrowser queueBrowser = null;/*www  . ja  va2 s. com*/
    Session session = null;
    try {
        session = createSession();
        if (StringUtils.isEmpty(getSelector())) {
            queueBrowser = session.createBrowser((Queue) getDestination());
        } else {
            queueBrowser = session.createBrowser((Queue) getDestination(), getSelector());
        }
        int count = 0;
        for (Enumeration enm = queueBrowser.getEnumeration(); enm.hasMoreElements(); enm.nextElement()) {
            count++;
        }
        return count;
    } catch (Exception e) {
        throw new ListenerException("cannot determin messagecount", e);
    } finally {
        try {
            if (queueBrowser != null) {
                queueBrowser.close();
            }
        } catch (JMSException e) {
            throw new ListenerException("error closing queuebrowser", e);
        }
        closeSession(session);
    }
}

From source file:org.apache.activemq.apollo.JmsQueueBrowserTest.java

/**
 * Tests the queue browser. Browses the messages then the consumer tries to receive them. The messages should still
 * be in the queue even when it was browsed.
 *
 * Re-enable once https://issues.apache.org/jira/browse/APLO-226 is fixed.
 *
 * @throws Exception//  ww w  .j  av a2 s  . c  om
 */
public void testReceiveBrowseReceive() throws Exception {
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    ActiveMQQueue destination = new ActiveMQQueue("TEST");
    MessageProducer producer = session.createProducer(destination);
    MessageConsumer consumer = session.createConsumer(destination);
    connection.start();

    Message[] outbound = new Message[] { session.createTextMessage("First Message"),
            session.createTextMessage("Second Message"), session.createTextMessage("Third Message") };

    // lets consume any outstanding messages from previous test runs
    while (consumer.receive(1000) != null) {
    }

    producer.send(outbound[0]);
    producer.send(outbound[1]);
    producer.send(outbound[2]);

    // Get the first.
    assertEquals(outbound[0], consumer.receive(1000));
    consumer.close();
    //Thread.sleep(200);

    QueueBrowser browser = session.createBrowser((Queue) destination);
    Enumeration enumeration = browser.getEnumeration();

    // browse the second
    assertTrue("should have received the second message", enumeration.hasMoreElements());
    assertEquals(outbound[1], (Message) enumeration.nextElement());

    // browse the third.
    assertTrue("Should have received the third message", enumeration.hasMoreElements());
    assertEquals(outbound[2], (Message) enumeration.nextElement());

    // There should be no more.
    boolean tooMany = false;
    while (enumeration.hasMoreElements()) {
        LOG.info("Got extra message: " + ((TextMessage) enumeration.nextElement()).getText());
        tooMany = true;
    }
    assertFalse(tooMany);
    browser.close();

    // Re-open the consumer.
    consumer = session.createConsumer(destination);
    // Receive the second.
    assertEquals(outbound[1], consumer.receive(1000));
    // Receive the third.
    assertEquals(outbound[2], consumer.receive(1000));
    consumer.close();

}

From source file:org.apache.activemq.apollo.JmsQueueBrowserTest.java

public void testBrowseReceive() throws Exception {
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    ActiveMQQueue destination = new ActiveMQQueue("TEST");

    connection.start();/* w w w .j  a va 2 s  . co  m*/

    Message[] outbound = new Message[] { session.createTextMessage("First Message"),
            session.createTextMessage("Second Message"), session.createTextMessage("Third Message") };

    MessageProducer producer = session.createProducer(destination);
    producer.send(outbound[0]);

    // create browser first
    QueueBrowser browser = session.createBrowser((Queue) destination);
    Enumeration enumeration = browser.getEnumeration();

    // create consumer
    MessageConsumer consumer = session.createConsumer(destination);

    // browse the first message
    assertTrue("should have received the first message", enumeration.hasMoreElements());
    assertEquals(outbound[0], (Message) enumeration.nextElement());

    // Receive the first message.
    assertEquals(outbound[0], consumer.receive(1000));
    consumer.close();
    browser.close();
    producer.close();

}

From source file:org.apache.activemq.apollo.JmsQueueBrowserTest.java

public void testQueueBrowserWith2Consumers() throws Exception {
    final int numMessages = 1000;
    //        connection.setAlwaysSyncSend(false);
    Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE);
    ActiveMQQueue destination = new ActiveMQQueue("TEST");
    ActiveMQQueue destinationPrefetch10 = new ActiveMQQueue("TEST?jms.prefetchSize=10");
    ActiveMQQueue destinationPrefetch1 = new ActiveMQQueue("TEST?jms.prefetchsize=1");
    connection.start();/*from   ww  w  .j a  v a  2  s . co  m*/

    Connection connection2 = factory.createConnection(userName, password);
    connection2.start();
    connections.add(connection2);
    Session session2 = connection2.createSession(false, Session.AUTO_ACKNOWLEDGE);

    MessageProducer producer = session.createProducer(destination);
    MessageConsumer consumer = session.createConsumer(destinationPrefetch10);

    for (int i = 0; i < numMessages; i++) {
        TextMessage message = session.createTextMessage("Message: " + i);
        producer.send(message);
    }

    QueueBrowser browser = session2.createBrowser(destinationPrefetch1);
    Enumeration<Message> browserView = browser.getEnumeration();

    List<Message> messages = new ArrayList<Message>();
    for (int i = 0; i < numMessages; i++) {
        Message m1 = consumer.receive(5000);
        assertNotNull("m1 is null for index: " + i, m1);
        messages.add(m1);
    }

    int i = 0;
    for (; i < numMessages && browserView.hasMoreElements(); i++) {
        Message m1 = messages.get(i);
        Message m2 = browserView.nextElement();
        assertNotNull("m2 is null for index: " + i, m2);
        assertEquals(m1.getJMSMessageID(), m2.getJMSMessageID());
    }

    // currently browse max page size is ignored for a queue browser consumer
    // only guarantee is a page size - but a snapshot of pagedinpending is
    // used so it is most likely more
    assertTrue("got at least our expected minimum in the browser: ", i > 200);

    assertFalse("nothing left in the browser", browserView.hasMoreElements());
    assertNull("consumer finished", consumer.receiveNoWait());
}

From source file:org.apache.activemq.apollo.JmsQueueBrowserTest.java

public void testBrowseClose() throws Exception {
    Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
    ActiveMQQueue destination = new ActiveMQQueue("TEST");

    connection.start();//from w w  w.j a va2 s . c o  m

    TextMessage[] outbound = new TextMessage[] { session.createTextMessage("First Message"),
            session.createTextMessage("Second Message"), session.createTextMessage("Third Message") };

    MessageProducer producer = session.createProducer(destination);
    producer.send(outbound[0]);
    producer.send(outbound[1]);
    producer.send(outbound[2]);

    // create browser first
    QueueBrowser browser = session.createBrowser((Queue) destination);
    Enumeration enumeration = browser.getEnumeration();

    // browse some messages
    assertEquals(outbound[0], (Message) enumeration.nextElement());
    assertEquals(outbound[1], (Message) enumeration.nextElement());
    //assertEquals(outbound[2], (Message) enumeration.nextElement());

    browser.close();

    // create consumer
    MessageConsumer consumer = session.createConsumer(destination);

    // Receive the first message.
    TextMessage msg = (TextMessage) consumer.receive(1000);
    assertEquals("Expected " + outbound[0].getText() + " but received " + msg.getText(), outbound[0], msg);
    msg = (TextMessage) consumer.receive(1000);
    assertEquals("Expected " + outbound[1].getText() + " but received " + msg.getText(), outbound[1], msg);
    msg = (TextMessage) consumer.receive(1000);
    assertEquals("Expected " + outbound[2].getText() + " but received " + msg.getText(), outbound[2], msg);

    consumer.close();
    producer.close();

}

From source file:org.apache.activemq.leveldb.test.ReplicatedLevelDBBrokerTest.java

private ArrayList<String> browseMessagesViaJMS(BrokerService brokerService) throws Exception {
    ArrayList<String> rc = new ArrayList<String>();
    ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(
            "tcp://localhost:" + connectPort(brokerService));
    Connection connection = factory.createConnection();
    try {// w ww . j  a  va  2s.com
        connection.start();
        Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
        QueueBrowser browser = session.createBrowser(session.createQueue("FOO"));
        Enumeration enumeration = browser.getEnumeration();
        while (enumeration.hasMoreElements()) {
            TextMessage textMessage = (TextMessage) enumeration.nextElement();
            rc.add(textMessage.getText());
        }
    } finally {
        connection.close();
    }
    return rc;
}