/**
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
* statements and notices. Redistributions must also contain a
* copy of this document.
*
* 2. Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. The name "Exolab" must not be used to endorse or promote
* products derived from this Software without prior written
* permission of Exoffice Technologies. For written permission,
* please contact info@exolab.org.
*
* 4. Products derived from this Software may not be called "Exolab"
* nor may "Exolab" appear in their names without prior written
* permission of Exoffice Technologies. Exolab is a registered
* trademark of Exoffice Technologies.
*
* 5. Due credit should be given to the Exolab Project
* (http://www.exolab.org/).
*
* THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 2005 (C) Exoffice Technologies Inc. All Rights Reserved.
*
* $Id: DestinationConfigurator.java,v 1.1 2005/08/30 07:26:49 tanderson Exp $
*/
package org.exolab.jms.messagemgr;
import javax.jms.JMSException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.exolab.jms.client.JmsQueue;
import org.exolab.jms.client.JmsTopic;
import org.exolab.jms.config.AdministeredDestinations;
import org.exolab.jms.config.AdministeredQueue;
import org.exolab.jms.config.AdministeredTopic;
import org.exolab.jms.config.Configuration;
import org.exolab.jms.config.Subscriber;
import org.exolab.jms.service.Service;
import org.exolab.jms.service.ServiceException;
/**
* Pre-configures {@link DestinationManager} with destinations and and
* {@link ConsumerManager} with subscribers from an {@link Configuration}.
*
* @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
* @version $Revision: 1.1 $ $Date: 2005/08/30 07:26:49 $
*/
public class DestinationConfigurator extends Service {
/**
* The configuration to use.
*/
private final Configuration _config;
/**
* The destination manager.
*/
private final DestinationManager _destinations;
/**
* The consumer manager.
*/
private final ConsumerManager _consumers;
/**
* The logger.
*/
private static final Log _log
= LogFactory.getLog(DestinationConfigurator.class);
/**
* Create a new <code>DestinationConfigurator</code>.
*
* @param config the configuration to use
* @param destinations the destination manager
* @param consumers the consumer manaager
*/
public DestinationConfigurator(Configuration config,
DestinationManager destinations,
ConsumerManager consumers) {
if (config == null) {
throw new IllegalArgumentException("Argument 'config' is null");
}
if (destinations == null) {
throw new IllegalArgumentException(
"Argument 'destinations' is null");
}
if (consumers == null) {
throw new IllegalArgumentException("Argument 'consumers' is null");
}
_config = config;
_destinations = destinations;
_consumers = consumers;
}
/**
* Start the service.
*
* @throws ServiceException if the service fails to start
*/
protected void doStart() throws ServiceException {
AdministeredDestinations destinations
= _config.getAdministeredDestinations();
if (destinations != null) {
configureTopics(destinations.getAdministeredTopic());
configureQueues(destinations.getAdministeredQueue());
}
}
/**
* Configure topics.
*
* @param topics the topics to configure
*/
protected void configureTopics(AdministeredTopic[] topics) {
for (int i = 0; i < topics.length; ++i) {
final AdministeredTopic topic = topics[i];
final String name = topics[i].getName();
if (_destinations.getDestination(name) == null) {
final JmsTopic destination = new JmsTopic(name);
destination.setPersistent(true);
try {
_destinations.createDestination(destination);
// register the subscribers for each topic.
int scount = topic.getSubscriberCount();
for (int sindex = 0; sindex < scount; sindex++) {
Subscriber subscriber = topic.getSubscriber(sindex);
_consumers.subscribe(destination,
subscriber.getName(), null);
}
} catch (JMSException exception) {
_log.error("Failed to register persistent topic " + name,
exception);
}
}
}
}
/**
* Configure queues.
*
* @param queues the queues to configure
*/
protected void configureQueues(AdministeredQueue[] queues) {
for (int i = 0; i < queues.length; ++i) {
final AdministeredQueue queue = queues[i];
final String name = queue.getName();
if (_destinations.getDestination(name) == null) {
JmsQueue destination = new JmsQueue(name);
destination.setPersistent(true);
try {
_destinations.createDestination(destination);
} catch (JMSException exception) {
_log.error("Failed to register persistent queue " + name,
exception);
}
}
}
}
}