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ActiveMQ example source code file (PerDurableConsumerDeadLetterTest.java)

This example ActiveMQ source code file (PerDurableConsumerDeadLetterTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

activemqqueue, brokerservice, client_id, client_id, deadlettertest, individualdeadletterstrategy, individualdeadletterstrategy, logger, perdurableconsumerdeadlettertest, policyentry, policymap, policymap, string, string, util

The ActiveMQ PerDurableConsumerDeadLetterTest.java source code

/**
 * 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.policy;

import java.util.Enumeration;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.Queue;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.region.policy.DeadLetterStrategy;
import org.apache.activemq.broker.region.policy.IndividualDeadLetterStrategy;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.apache.activemq.command.ActiveMQQueue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * for durable subs, allow a dlq per subscriber such that poison messages are not duplicates
 * on the dlq and such that rejecting consumers can be identified
 * https://issues.apache.org/jira/browse/AMQ-3003
 */
public class PerDurableConsumerDeadLetterTest extends DeadLetterTest {
    private static final Logger LOG = LoggerFactory.getLogger(PerDurableConsumerDeadLetterTest.class);

    private static final String CLIENT_ID = "george";

    protected BrokerService createBroker() throws Exception {
        BrokerService broker = super.createBroker();

        PolicyEntry policy = new PolicyEntry();
        IndividualDeadLetterStrategy strategy = new IndividualDeadLetterStrategy();
        strategy.setProcessNonPersistent(true);
        strategy.setDestinationPerDurableSubscriber(true);
        policy.setDeadLetterStrategy(strategy);

        PolicyMap pMap = new PolicyMap();
        pMap.setDefaultEntry(policy);

        broker.setDestinationPolicy(pMap);

        return broker;
    }

    protected String createClientId() {
        return CLIENT_ID;
    }

    protected Destination createDlqDestination() {
        String prefix = topic ? "ActiveMQ.DLQ.Topic." : "ActiveMQ.DLQ.Queue.";
        String destinationName = prefix + getClass().getName() + "." + getName();
        if (durableSubscriber) {
            String subName = // connectionId:SubName
                CLIENT_ID + ":" + getDestination().toString();
            destinationName += "." + subName ;
        }
        return new ActiveMQQueue(destinationName);
    }
}

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