/*
* Bitronix Transaction Manager
*
* Copyright (c) 2010, Bitronix Software.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package bitronix.tm.resource.jms;
import bitronix.tm.internal.BitronixRuntimeException;
import javax.jms.Destination;
import javax.jms.Queue;
import javax.jms.Topic;
import javax.jms.JMSException;
/**
* JMS destination wrapper optimized for use with hashed collections where it is the key and a
* {@link javax.jms.MessageProducer} or a {@link javax.jms.MessageConsumer} is the value.
*
* @author lorban
*/
public class MessageProducerConsumerKey {
private Destination destination;
private String messageSelector;
private Boolean noLocal;
public MessageProducerConsumerKey(Destination destination) {
this.destination = destination;
}
public MessageProducerConsumerKey(Destination destination, String messageSelector) {
this.destination = destination;
this.messageSelector = messageSelector;
}
public MessageProducerConsumerKey(Destination destination, String messageSelector, boolean noLocal) {
this.destination = destination;
this.messageSelector = messageSelector;
this.noLocal = Boolean.valueOf(noLocal);
}
public boolean equals(Object obj) {
if (obj instanceof MessageProducerConsumerKey) {
MessageProducerConsumerKey otherKey = (MessageProducerConsumerKey) obj;
if (!areEquals(getDestinationName(), otherKey.getDestinationName()))
return false;
if (!areEquals(messageSelector, otherKey.messageSelector))
return false;
if (!areEquals(noLocal, otherKey.noLocal))
return false;
return true;
}
return false;
}
private static boolean areEquals(Object o1, Object o2) {
if (o1 == null && o2 == null)
return true;
if (o1 != null && o2 == null)
return false;
if (o1 == null)
return false;
return o1.equals(o2);
}
private String getDestinationName() {
if (destination == null) {
return null;
}
else if (destination instanceof Queue) {
try {
return ((Queue) destination).getQueueName();
} catch (JMSException ex) {
throw new BitronixRuntimeException("error getting queue name of " + destination, ex);
}
}
else if (destination instanceof Topic) {
try {
return ((Topic) destination).getTopicName();
} catch (JMSException ex) {
throw new BitronixRuntimeException("error getting topic name of " + destination, ex);
}
}
else throw new IllegalArgumentException("unsupported destination: " + destination);
}
public int hashCode() {
return hash(getDestinationName()) + hash(messageSelector) + hash(noLocal);
}
private static int hash(Object o) {
if (o == null)
return 0;
return o.hashCode();
}
public String toString() {
return "a MessageProducerConsumerKey on " + destination +
(messageSelector == null ? "" : (" with selector '" + messageSelector) + "'") +
(noLocal == null ? "" : (" and noLocal=" + noLocal));
}
}