/**
 * 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.perf;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.jms.TemporaryQueue;
import javax.jms.TemporaryTopic;

import junit.framework.TestCase;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 */
public class MemoryAllocationTest extends TestCase {

   protected static final int MESSAGE_COUNT = 2000;
   private static final Logger LOG = LoggerFactory.getLogger(MemoryAllocationTest.class);

   protected BrokerService broker;
   protected String bindAddress = "vm://localhost";
   protected int topicCount;

   public void testPerformance() throws Exception {
      ConnectionFactory factory = createConnectionFactory();
      Connection connection = factory.createConnection();
      for (int i = 0; i < MESSAGE_COUNT; i++) {

         Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
         Destination dest = session.createTemporaryTopic();
         session.createConsumer(dest);
         MessageProducer mp = session.createProducer(dest);
         Message msg = session.createTextMessage("test" + i);
         mp.send(msg);
         session.close();
         releaseDestination(dest);
         if (i % 500 == 0) {
            LOG.info("Iterator " + i);
         }
      }
      connection.close();
   }

   protected Destination getDestination(Session session) throws JMSException {
      String topicName = getClass().getName() + "." + topicCount++;
      return session.createTopic(topicName);
   }

   protected void releaseDestination(Destination dest) throws JMSException {
      if (dest instanceof TemporaryTopic) {
         TemporaryTopic tt = (TemporaryTopic) dest;
         tt.delete();
      } else if (dest instanceof TemporaryQueue) {
         TemporaryQueue tq = (TemporaryQueue) dest;
         tq.delete();
      }
   }

   @Override
   protected void setUp() throws Exception {
      if (broker == null) {
         broker = createBroker();
      }
      super.setUp();
   }

   @Override
   protected void tearDown() throws Exception {
      super.tearDown();

      if (broker != null) {
         broker.stop();
      }
   }

   protected ActiveMQConnectionFactory createConnectionFactory() throws Exception {
      ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(bindAddress);
      return cf;
   }

   protected BrokerService createBroker() throws Exception {
      BrokerService answer = new BrokerService();
      configureBroker(answer);
      answer.start();
      return answer;
   }

   protected void configureBroker(BrokerService answer) throws Exception {
      answer.setPersistent(false);
      answer.addConnector(bindAddress);
      answer.setDeleteAllMessagesOnStartup(true);
   }
}
