Example usage for javax.jms QueueBrowser close

Introduction

In this page you can find the example usage for javax.jms QueueBrowser close.

Prototype

void close() throws JMSException;

Source Link

Document

Closes the QueueBrowser .

Usage

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();/*  w ww . j a va 2  s .c  om*/

    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.jms.pool.PooledSession.java

@Override
public void close() throws JMSException {
    if (ignoreClose) {
        return;// www.j  a  v a 2 s.  c om
    }

    if (closed.compareAndSet(false, true)) {
        boolean invalidate = false;
        try {
            // lets reset the session
            getInternalSession().setMessageListener(null);

            // Close any consumers and browsers that may have been created.
            for (Iterator<MessageConsumer> iter = consumers.iterator(); iter.hasNext();) {
                MessageConsumer consumer = iter.next();
                consumer.close();
            }

            for (Iterator<QueueBrowser> iter = browsers.iterator(); iter.hasNext();) {
                QueueBrowser browser = iter.next();
                browser.close();
            }

            if (transactional && !isXa) {
                try {
                    getInternalSession().rollback();
                } catch (JMSException e) {
                    invalidate = true;
                    LOG.warn(
                            "Caught exception trying rollback() when putting session back into the pool, will invalidate. "
                                    + e,
                            e);
                }
            }
        } catch (JMSException ex) {
            invalidate = true;
            LOG.warn(
                    "Caught exception trying close() when putting session back into the pool, will invalidate. "
                            + ex,
                    ex);
        } finally {
            consumers.clear();
            browsers.clear();
            for (PooledSessionEventListener listener : this.sessionEventListeners) {
                listener.onSessionClosed(this);
            }
            sessionEventListeners.clear();
        }

        if (invalidate) {
            // lets close the session and not put the session back into the pool
            // instead invalidate it so the pool can create a new one on demand.
            if (sessionHolder != null) {
                try {
                    sessionHolder.close();
                } catch (JMSException e1) {
                    LOG.trace("Ignoring exception on close as discarding session: " + e1, e1);
                }
            }
            try {
                sessionPool.invalidateObject(key, sessionHolder);
            } catch (Exception e) {
                LOG.trace("Ignoring exception on invalidateObject as discarding session: " + e, e);
            }
        } else {
            try {
                sessionPool.returnObject(key, sessionHolder);
            } catch (Exception e) {
                javax.jms.IllegalStateException illegalStateException = new javax.jms.IllegalStateException(
                        e.toString());
                illegalStateException.initCause(e);
                throw illegalStateException;
            }
        }

        sessionHolder = null;
    }
}

---

From source file:org.apache.aries.transaction.jms.internal.PooledSession.java

@Override
public void close() throws JMSException {
    if (!ignoreClose) {
        boolean invalidate = false;
        try {// ww  w .ja  v a2s  . c  o  m
            // lets reset the session
            getInternalSession().setMessageListener(null);

            // Close any consumers and browsers that may have been created.
            for (Iterator<MessageConsumer> iter = consumers.iterator(); iter.hasNext();) {
                MessageConsumer consumer = iter.next();
                consumer.close();
            }

            for (Iterator<QueueBrowser> iter = browsers.iterator(); iter.hasNext();) {
                QueueBrowser browser = iter.next();
                browser.close();
            }

            if (transactional && !isXa) {
                try {
                    getInternalSession().rollback();
                } catch (JMSException e) {
                    invalidate = true;
                    LOG.warn(
                            "Caught exception trying rollback() when putting session back into the pool, will invalidate. "
                                    + e,
                            e);
                }
            }
        } catch (JMSException ex) {
            invalidate = true;
            LOG.warn(
                    "Caught exception trying close() when putting session back into the pool, will invalidate. "
                            + ex,
                    ex);
        } finally {
            consumers.clear();
            browsers.clear();
            for (PooledSessionEventListener listener : this.sessionEventListeners) {
                listener.onSessionClosed(this);
            }
            sessionEventListeners.clear();
        }

        if (invalidate) {
            // lets close the session and not put the session back into the pool
            // instead invalidate it so the pool can create a new one on demand.
            if (session != null) {
                try {
                    session.close();
                } catch (JMSException e1) {
                    LOG.trace("Ignoring exception on close as discarding session: " + e1, e1);
                }
                session = null;
            }
            try {
                sessionPool.invalidateObject(key, this);
            } catch (Exception e) {
                LOG.trace("Ignoring exception on invalidateObject as discarding session: " + e, e);
            }
        } else {
            try {
                sessionPool.returnObject(key, this);
            } catch (Exception e) {
                javax.jms.IllegalStateException illegalStateException = new javax.jms.IllegalStateException(
                        e.toString());
                illegalStateException.initCause(e);
                throw illegalStateException;
            }
        }
    }
}

---

From source file:org.apache.james.queue.jms.JMSMailQueue.java

private static void closeBrowser(QueueBrowser browser) {
    if (browser != null) {
        try {//from   w  w w  .  j av a  2  s .c om
            browser.close();
        } catch (JMSException e) {
            // Ignore. See JAMES-2509
        }
    }
}

---

From source file:org.apache.karaf.jms.pool.internal.PooledSession.java

@Override
public void close() throws JMSException {
    if (!ignoreClose) {
        boolean invalidate = false;
        try {// www. j av  a2 s.c om
            // lets reset the session
            getInternalSession().setMessageListener(null);

            // Close any consumers and browsers that may have been created.
            for (MessageConsumer consumer : consumers) {
                consumer.close();
            }

            for (QueueBrowser browser : browsers) {
                browser.close();
            }

            if (transactional && !isXa) {
                try {
                    getInternalSession().rollback();
                } catch (JMSException e) {
                    invalidate = true;
                    LOG.warn(
                            "Caught exception trying rollback() when putting session back into the pool, will invalidate. "
                                    + e,
                            e);
                }
            }
        } catch (JMSException ex) {
            invalidate = true;
            LOG.warn(
                    "Caught exception trying close() when putting session back into the pool, will invalidate. "
                            + ex,
                    ex);
        } finally {
            consumers.clear();
            browsers.clear();
            for (PooledSessionEventListener listener : this.sessionEventListeners) {
                listener.onSessionClosed(this);
            }
            sessionEventListeners.clear();
        }

        if (invalidate) {
            // lets close the session and not put the session back into the pool
            // instead invalidate it so the pool can create a new one on demand.
            if (session != null) {
                try {
                    session.close();
                } catch (JMSException e1) {
                    LOG.trace("Ignoring exception on close as discarding session: " + e1, e1);
                }
                session = null;
            }
            try {
                sessionPool.invalidateObject(key, this);
            } catch (Exception e) {
                LOG.trace("Ignoring exception on invalidateObject as discarding session: " + e, e);
            }
        } else {
            try {
                sessionPool.returnObject(key, this);
            } catch (Exception e) {
                javax.jms.IllegalStateException illegalStateException = new javax.jms.IllegalStateException(
                        e.toString());
                illegalStateException.initCause(e);
                throw illegalStateException;
            }
        }
    }
}

---

From source file:org.dhatim.routing.jms.JMSRouter.java

private void waitWhileAboveHighWaterMark() throws JMSException, SmooksRoutingException {
    if (highWaterMark == -1) {
        return;/*w  w w  . jav  a 2s.  com*/
    }

    if (session instanceof QueueSession) {
        QueueSession queueSession = (QueueSession) session;
        QueueBrowser queueBrowser = queueSession.createBrowser((Queue) destination);

        try {
            int length = getQueueLength(queueBrowser);
            long start = System.currentTimeMillis();

            if (logger.isDebugEnabled() && length >= highWaterMark) {
                logger.debug("Length of JMS destination Queue '" + jmsProperties.getDestinationName()
                        + "' has reached " + length + ".  High Water Mark is " + highWaterMark
                        + ".  Waiting for Queue length to drop.");
            }

            while (length >= highWaterMark && (System.currentTimeMillis() < start + highWaterMarkTimeout)) {
                try {
                    Thread.sleep(highWaterMarkPollFrequency);
                } catch (InterruptedException e) {
                    logger.error("Interrupted", e);
                    return;
                }
                length = getQueueLength(queueBrowser);
            }

            // Check did the queue length drop below the HWM...
            if (length >= highWaterMark) {
                throw new SmooksRoutingException("Failed to route JMS message to Queue destination '"
                        + ((Queue) destination).getQueueName() + "'. Timed out (" + highWaterMarkTimeout
                        + " ms) waiting for queue length to drop below High Water Mark (" + highWaterMark
                        + ").  Consider increasing 'highWaterMark' and/or 'highWaterMarkTimeout' param values.");
            }
        } finally {
            queueBrowser.close();
        }
    }
}

---

From source file:org.logicblaze.lingo.jms.JmsClient.java

public Message peek() throws JMSException {
    QueueBrowser browser = createBrowser();
    try {/* w  w w  . ja  v  a 2s.co  m*/
        Enumeration iter = browser.getEnumeration();
        if (iter.hasMoreElements()) {
            return (Message) iter.nextElement();
        }
        return null;
    } finally {
        try {
            browser.close();
        } catch (JMSException e) {
            onBrowserCloseException(e);
            return null;
        }
    }
}

---

From source file:org.logicblaze.lingo.jms.JmsClient.java

public void close(QueueBrowser browser) {
    try {/* www.  j  a  v a  2  s  . c  o m*/
        browser.close();
    } catch (JMSException e) {
        // ignore exception as we're called from iterators
        log.warn("Could not close queue browser due to: " + e, e);
    }
}

---

From source file:org.springframework.jms.support.JmsUtils.java

/**
 * Close the given JMS QueueBrowser and ignore any thrown exception.
 * This is useful for typical {@code finally} blocks in manual JMS code.
 * @param browser the JMS QueueBrowser to close (may be {@code null})
 *//*from ww w .j ava2  s.co  m*/
public static void closeQueueBrowser(@Nullable QueueBrowser browser) {
    if (browser != null) {
        try {
            browser.close();
        } catch (JMSException ex) {
            logger.trace("Could not close JMS QueueBrowser", ex);
        } catch (Throwable ex) {
            // We don't trust the JMS provider: It might throw RuntimeException or Error.
            logger.trace("Unexpected exception on closing JMS QueueBrowser", ex);
        }
    }
}

---

From source file:org.symplify.runtime.jms.JMSContextImpl.java

public Message peek(Channel channel) throws Exception {
    Message ret = null;/*w  ww.  j ava  2  s  .c  om*/
    javax.jms.Queue queue = getQueue(channel);

    if (queue != null) {
        javax.jms.QueueBrowser browser = m_session.createBrowser(queue);

        if (browser.getEnumeration().hasMoreElements()) {
            javax.jms.Message m = (javax.jms.Message) browser.getEnumeration().nextElement();

            if (m instanceof javax.jms.ObjectMessage) {
                ret = (Message) ((javax.jms.ObjectMessage) m).getObject();
            }
        }

        browser.close();

    } else {
        throw new Exception("Unable to find queue for channel");
    }

    if (logger.isDebugEnabled()) {
        logger.debug("Peek on channel " + channel + " = " + ret);
    }

    return (ret);
}

---

• «
• 1
• 2
• 3
• »