org.apache.activemq.broker.region.virtual.VirtualTopicInterceptor Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of activemq-osgi Show documentation
Show all versions of activemq-osgi Show documentation
Puts together an ActiveMQ OSGi bundle
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.broker.region.virtual;
import org.apache.activemq.broker.ProducerBrokerExchange;
import org.apache.activemq.broker.region.Destination;
import org.apache.activemq.broker.region.DestinationFilter;
import org.apache.activemq.broker.region.Topic;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQQueue;
import org.apache.activemq.command.Message;
import org.apache.activemq.util.LRUCache;
/**
* A Destination which implements Virtual Topic
*/
public class VirtualTopicInterceptor extends DestinationFilter {
private final String prefix;
private final String postfix;
private final boolean local;
private final LRUCache cache = new LRUCache();
public VirtualTopicInterceptor(Destination next, String prefix, String postfix, boolean local) {
super(next);
this.prefix = prefix;
this.postfix = postfix;
this.local = local;
}
public Topic getTopic() {
return (Topic) this.next;
}
@Override
public void send(ProducerBrokerExchange context, Message message) throws Exception {
if (!message.isAdvisory() && !(local && message.getBrokerPath() != null)) {
ActiveMQDestination queueConsumers = getQueueConsumersWildcard(message.getDestination());
send(context, message, queueConsumers);
}
super.send(context, message);
}
protected ActiveMQDestination getQueueConsumersWildcard(ActiveMQDestination original) {
ActiveMQQueue queue;
synchronized (cache) {
queue = cache.get(original);
if (queue == null) {
queue = new ActiveMQQueue(prefix + original.getPhysicalName() + postfix);
cache.put(original, queue);
}
}
return queue;
}
}