org.apache.activemq.broker.util.TraceBrokerPathPlugin Maven / Gradle / Ivy
/**
* 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.util;
import java.io.IOException;
import org.apache.activemq.broker.BrokerPluginSupport;
import org.apache.activemq.command.MessageDispatch;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The TraceBrokerPathPlugin can be used in a network of Brokers. Each Broker
* that has the plugin configured, will add it's brokerName to the content
* of a JMS Property. If all Brokers have this property enabled, the path the
* message actually took through the network can be seen in the defined property.
*
* @org.apache.xbean.XBean element="traceBrokerPathPlugin"
*
*/
@SuppressWarnings("unchecked")
public class TraceBrokerPathPlugin extends BrokerPluginSupport {
private String stampProperty = "BrokerPath";
private static final Logger LOG = LoggerFactory.getLogger(TraceBrokerPathPlugin.class);
public String getStampProperty() {
return stampProperty;
}
public void setStampProperty(String stampProperty) {
if (stampProperty != null && !stampProperty.isEmpty()) {
this.stampProperty = stampProperty;
}
}
public void preProcessDispatch(MessageDispatch messageDispatch) {
try {
if (messageDispatch != null && messageDispatch.getMessage() != null) {
String brokerStamp = (String)messageDispatch.getMessage().getProperty(getStampProperty());
if (brokerStamp == null) {
brokerStamp = getBrokerName();
} else {
brokerStamp += "," + getBrokerName();
}
messageDispatch.getMessage().setProperty(getStampProperty(), brokerStamp);
messageDispatch.getMessage().setMarshalledProperties(null);
}
} catch (IOException ioe) {
LOG.warn("Setting broker property failed", ioe);
}
super.preProcessDispatch(messageDispatch);
}
}