content: /*
   * 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;
  
  import javax.jms.Connection;
  import javax.jms.ConnectionFactory;
  import javax.jms.JMSException;
  import javax.jms.Message;
  import javax.jms.MessageConsumer;
  import javax.jms.MessageProducer;
  import javax.jms.Session;
  
  import junit.framework.TestCase;
  
  import org.apache.activemq.command.ActiveMQQueue;
  import org.apache.activemq.transport.tcp.TcpTransportFactory;
  
  //https://issues.apache.org/jira/browse/ARTEMIS-196
  public class QueueConsumerPriorityTest extends TestCase {
  
     private static final String VM_BROKER_URL = "vm://localhost?broker.persistent=false&broker.useJmx=true";
  
     public QueueConsumerPriorityTest(String name) {
        super(name);
     }
  
     @Override
     protected void setUp() throws Exception {
        super.setUp();
     }
  
     @Override
     protected void tearDown() throws Exception {
        TcpTransportFactory.clearService();
        super.tearDown();
     }
  
     private Connection createConnection(final boolean start) throws JMSException {
        ConnectionFactory cf = new ActiveMQConnectionFactory(VM_BROKER_URL);
        Connection conn = cf.createConnection();
        if (start) {
           conn.start();
        }
        return conn;
     }
  
     public void testQueueConsumerPriority() throws JMSException, InterruptedException {
        Connection conn = createConnection(true);
  
        Session consumerLowPriority = null;
        Session consumerHighPriority = null;
        Session senderSession = null;
  
        try {
  
           consumerLowPriority = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
           consumerHighPriority = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
           assertNotNull(consumerHighPriority);
           senderSession = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);
           String queueName = getClass().getName();
           ActiveMQQueue low = new ActiveMQQueue(queueName + "?consumer.priority=1");
           MessageConsumer lowConsumer = consumerLowPriority.createConsumer(low);
  
           ActiveMQQueue high = new ActiveMQQueue(queueName + "?consumer.priority=2");
           MessageConsumer highConsumer = consumerLowPriority.createConsumer(high);
  
           ActiveMQQueue senderQueue = new ActiveMQQueue(queueName);
  
           MessageProducer producer = senderSession.createProducer(senderQueue);
  
           Message msg = senderSession.createTextMessage("test");
           for (int i = 0; i < 10000; i++) {
              producer.send(msg);
              assertNotNull("null on iteration: " + i, highConsumer.receive(500));
           }
           assertNull(lowConsumer.receive(2000));
  
        } finally {
           conn.close();
        }
     }
  }
  