DeadLetterTest.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.Destination;
import javax.jms.Message;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.RedeliveryPolicy;
import org.apache.activemq.command.ActiveMQQueue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 *
 */
public class DeadLetterTest extends DeadLetterTestSupport {

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

   protected int rollbackCount;

   @Override
   protected void doTest() throws Exception {
      connection.start();

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

      makeConsumer();
      makeDlqConsumer();

      sendMessages();

      // now lets receive and rollback N times
      for (int i = 0; i < messageCount; i++) {
         consumeAndRollback(i);
      }

      for (int i = 0; i < messageCount; i++) {
         Message msg = dlqConsumer.receive(1000);
         assertMessage(msg, i);
         assertNotNull("Should be a DLQ message for loop: " + i, msg);
      }
      session.commit();
   }

   protected void consumeAndRollback(int messageCounter) throws Exception {
      for (int i = 0; i < rollbackCount; i++) {
         Message message = consumer.receive(5000);
         assertNotNull("No message received for message: " + messageCounter + " and rollback loop: " + i, message);
         assertMessage(message, messageCounter);

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

   @Override
   protected void setUp() throws Exception {
      transactedMode = true;
      super.setUp();
   }

   @Override
   protected ActiveMQConnectionFactory createConnectionFactory() throws Exception {
      ActiveMQConnectionFactory answer = super.createConnectionFactory();
      RedeliveryPolicy policy = new RedeliveryPolicy();
      policy.setMaximumRedeliveries(3);
      policy.setBackOffMultiplier((short) 1);
      policy.setInitialRedeliveryDelay(10);
      policy.setUseExponentialBackOff(false);
      answer.setRedeliveryPolicy(policy);
      return answer;
   }

   @Override
   protected Destination createDlqDestination() {
      return new ActiveMQQueue("ActiveMQ.DLQ");
   }

}