IndividualDeadLetterTest.java

/**
 * 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 javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.Queue;
import java.util.Enumeration;

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;

/**
 *
 */
public class IndividualDeadLetterTest extends DeadLetterTest {

   private static final Logger LOG = LoggerFactory.getLogger(IndividualDeadLetterTest.class);

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

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

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

      broker.setDestinationPolicy(pMap);

      return broker;
   }

   @Override
   protected Destination createDlqDestination() {
      String prefix = topic ? "ActiveMQ.DLQ.Topic." : "ActiveMQ.DLQ.Queue.";
      return new ActiveMQQueue(prefix + getClass().getName() + "." + getName());
   }

   public void testDLQBrowsing() throws Exception {
      super.topic = false;
      deliveryMode = DeliveryMode.PERSISTENT;
      durableSubscriber = false;
      messageCount = 1;

      connection.start();

      ActiveMQConnection amqConnection = (ActiveMQConnection) connection;
      rollbackCount = amqConnection.getRedeliveryPolicy().getMaximumRedeliveries() + 1;
      LOG.info("Will redeliver messages: " + rollbackCount + " times");

      sendMessages();

      // now lets receive and rollback N times
      for (int i = 0; i < rollbackCount; i++) {
         makeConsumer();
         Message message = consumer.receive(5000);
         assertNotNull("No message received: ", message);

         session.rollback();
         LOG.info("Rolled back: " + rollbackCount + " times");
         consumer.close();
      }

      makeDlqBrowser();
      browseDlq();
      dlqBrowser.close();
      session.close();
      Thread.sleep(1000);
      session = connection.createSession(transactedMode, acknowledgeMode);
      Queue testQueue = new ActiveMQQueue("ActiveMQ.DLQ.Queue.ActiveMQ.DLQ.Queue." + getClass().getName() + "." + getName());
      MessageConsumer testConsumer = session.createConsumer(testQueue);
      assertNull("The message shouldn't be sent to another DLQ", testConsumer.receive(1000));

   }

   protected void browseDlq() throws Exception {
      Enumeration<?> messages = dlqBrowser.getEnumeration();
      while (messages.hasMoreElements()) {
         LOG.info("Browsing: " + messages.nextElement());
      }
   }
}