Example usage for javax.jms MessageListener toString

Introduction

In this page you can find the example usage for javax.jms MessageListener toString.

Prototype

public String toString() 

Source Link

Document

Returns a string representation of the object.

Usage

From source file:dk.netarkivet.common.distribute.JMSConnection.java

/**
 * Method adds a listener to the given queue or topic.
 *
 * @param channelName the messagequeue to listen to
 * @param ml          the messagelistener
 *
 * @throws IOFailure if the operation failed.
 *//*from  w w w .j a  v  a 2  s  .  c  om*/
private void setListener(String channelName, MessageListener ml) {
    log.debug("Adding " + ml.toString() + " as listener to " + channelName);
    String errMsg = "JMS-error - could not add Listener to queue/topic: " + channelName;

    int tries = 0;
    boolean operationSuccessful = false;
    Exception lastException = null;
    while (!operationSuccessful && tries < JMS_MAXTRIES) {
        tries++;
        try {
            connectionLock.readLock().lock();
            try {
                getConsumer(channelName, ml).setMessageListener(ml);
            } finally {
                connectionLock.readLock().unlock();
            }
            operationSuccessful = true;
        } catch (JMSException e) {
            lastException = e;
            log.debug("Set listener failed (try " + tries + ")", e);
            if (tries < JMS_MAXTRIES) {
                onException(e);
                log.debug("Will sleep a while before trying to set listener" + " again");
                TimeUtils.exponentialBackoffSleep(tries, Calendar.MINUTE);
            }
        } catch (Exception e) {
            lastException = e;
            log.debug("Set listener failed (try " + tries + ")", e);
            if (tries < JMS_MAXTRIES) {
                reconnect();
                log.debug("Will sleep a while before trying to set listener" + " again");
                TimeUtils.exponentialBackoffSleep(tries, Calendar.MINUTE);
            }
        }
    }

    if (!operationSuccessful) {
        log.warn(errMsg, lastException);
        throw new IOFailure(errMsg, lastException);
    }
}

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