/**
 * 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;

/**
 * A NumberOfDestinationsTest
 *
 */

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 java.io.File;

import junit.framework.TestCase;

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

/**
 *
 */
public class NumberOfDestinationsTest extends TestCase {

   protected static final int MESSAGE_COUNT = 1;
   protected static final int NUMBER_OF_DESTINATIONS = 100000;
   private static final Logger LOG = LoggerFactory.getLogger(NumberOfDestinationsTest.class);
   protected BrokerService broker;
   protected String bindAddress = "vm://localhost";
   protected int destinationCount;

   public void testDestinations() throws Exception {
      ConnectionFactory factory = createConnectionFactory();
      Connection connection = factory.createConnection();
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      MessageProducer mp = session.createProducer(null);
      for (int j = 0; j < NUMBER_OF_DESTINATIONS; j++) {
         Destination dest = getDestination(session);

         for (int i = 0; i < MESSAGE_COUNT; i++) {
            Message msg = session.createTextMessage("test" + i);
            mp.send(dest, msg);

         }
         if (j % 500 == 0) {
            LOG.info("Iterator " + j);
         }
      }

      connection.close();
   }

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

   @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 {
      File dataFileDir = new File("target/test-amq-data/perfTest/kahadb");

      KahaDBPersistenceAdapter kaha = new KahaDBPersistenceAdapter();
      kaha.setDirectory(dataFileDir);
      //answer.setUseJmx(false);

      // The setEnableJournalDiskSyncs(false) setting is a little dangerous right now, as I have not verified
      // what happens if the index is updated but a journal update is lost.
      // Index is going to be in consistent, but can it be repaired?
      //kaha.setEnableJournalDiskSyncs(false);
      // Using a bigger journal file size makes he take fewer spikes as it is not switching files as often.
      //kaha.setJournalMaxFileLength(1024*100);

      // small batch means more frequent and smaller writes
      //kaha.setIndexWriteBatchSize(100);
      // do the index write in a separate thread
      //kaha.setEnableIndexWriteAsync(true);

      answer.setPersistenceAdapter(kaha);
      answer.setAdvisorySupport(false);
      answer.setEnableStatistics(false);
      answer.addConnector(bindAddress);
      answer.setDeleteAllMessagesOnStartup(true);
   }
}
