NewConsumerCreatesDestinationTest.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.usecases;

import javax.jms.Destination;
import javax.jms.Session;
import java.util.Set;

import org.apache.activemq.EmbeddedBrokerAndConnectionTestSupport;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.command.ActiveMQQueue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 *
 */
public class NewConsumerCreatesDestinationTest extends EmbeddedBrokerAndConnectionTestSupport {

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

   private ActiveMQQueue wildcard;

   public void testNewConsumerCausesNewDestinationToBeAutoCreated() throws Exception {

      // lets create a wildcard thats kinda like those used by Virtual Topics
      String wildcardText = "org.*" + getDestinationString().substring("org.apache".length());
      wildcard = new ActiveMQQueue(wildcardText);

      LOG.info("Using wildcard: " + wildcard);
      LOG.info("on destination: " + destination);

      assertDestinationCreated(destination, false);
      assertDestinationCreated(wildcard, false);

      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      session.createConsumer(destination);

      assertDestinationCreated(destination, true);
      assertDestinationCreated(wildcard, true);
   }

   protected void assertDestinationCreated(Destination destination, boolean expected) throws Exception {
      Set<?> answer = broker.getBroker().getDestinations((ActiveMQDestination) destination);
      int size = expected ? 1 : 0;
      assertEquals("Size of found destinations: " + answer, size, answer.size());
   }
}