org.apache.activemq.broker.inteceptor.MessageInterceptorRegistry Maven / Gradle / Ivy
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/**
* 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.inteceptor;
import java.util.HashMap;
import java.util.Map;
import org.apache.activemq.broker.Broker;
import org.apache.activemq.broker.BrokerRegistry;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.MutableBrokerFilter;
import org.apache.activemq.broker.ProducerBrokerExchange;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.Message;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MessageInterceptorRegistry {
private static final Logger LOG = LoggerFactory.getLogger(MessageInterceptorRegistry.class);
private static final MessageInterceptorRegistry INSTANCE = new MessageInterceptorRegistry();
private final BrokerService brokerService;
private MessageInterceptorFilter filter;
private final Map messageInterceptorRegistryMap = new HashMap();
public static MessageInterceptorRegistry getInstance() {
return INSTANCE;
}
public MessageInterceptorRegistry get(String brokerName){
BrokerService brokerService = BrokerRegistry.getInstance().lookup(brokerName);
return get(brokerService);
}
public synchronized MessageInterceptorRegistry get(BrokerService brokerService){
MessageInterceptorRegistry result = messageInterceptorRegistryMap.get(brokerService);
if (result == null){
result = new MessageInterceptorRegistry(brokerService);
messageInterceptorRegistryMap.put(brokerService,result);
}
return result;
}
private MessageInterceptorRegistry(){
this.brokerService=BrokerRegistry.getInstance().findFirst();
messageInterceptorRegistryMap.put(brokerService,this);
}
private MessageInterceptorRegistry(BrokerService brokerService) {
this.brokerService = brokerService;
}
public MessageInterceptor addMessageInterceptor(String destinationName, MessageInterceptor messageInterceptor) {
return getFilter().addMessageInterceptor(destinationName, messageInterceptor);
}
public void removeMessageInterceptor(String destinationName, MessageInterceptor messageInterceptor) {
getFilter().removeMessageInterceptor(destinationName, messageInterceptor);
}
public MessageInterceptor addMessageInterceptorForQueue(String destinationName, MessageInterceptor messageInterceptor) {
return getFilter().addMessageInterceptorForQueue(destinationName, messageInterceptor);
}
public void removeMessageInterceptorForQueue(String destinationName, MessageInterceptor messageInterceptor) {
getFilter().addMessageInterceptorForQueue(destinationName, messageInterceptor);
}
public MessageInterceptor addMessageInterceptorForTopic(String destinationName, MessageInterceptor messageInterceptor) {
return getFilter().addMessageInterceptorForTopic(destinationName, messageInterceptor);
}
public void removeMessageInterceptorForTopic(String destinationName, MessageInterceptor messageInterceptor) {
getFilter().removeMessageInterceptorForTopic(destinationName, messageInterceptor);
}
public MessageInterceptor addMessageInterceptor(ActiveMQDestination activeMQDestination, MessageInterceptor messageInterceptor) {
return getFilter().addMessageInterceptor(activeMQDestination, messageInterceptor);
}
public void removeMessageInterceptor(ActiveMQDestination activeMQDestination, MessageInterceptor interceptor) {
getFilter().removeMessageInterceptor(activeMQDestination, interceptor);
}
/**
* Re-inject into the Broker chain
*/
public void injectMessage(ProducerBrokerExchange producerExchange, final Message messageSend) throws Exception {
getFilter().injectMessage(producerExchange, messageSend);
}
private synchronized MessageInterceptorFilter getFilter() {
if (filter == null) {
try {
MutableBrokerFilter mutableBrokerFilter = (MutableBrokerFilter) brokerService.getBroker().getAdaptor(MutableBrokerFilter.class);
Broker next = mutableBrokerFilter.getNext();
filter = new MessageInterceptorFilter(next);
mutableBrokerFilter.setNext(filter);
} catch (Exception e) {
LOG.error("Failed to create MessageInterceptorFilter", e);
}
}
return filter;
}
}