/**
 * 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.store.kahadb;

import java.io.File;
import java.io.IOException;
import java.security.ProtectionDomain;

import javax.jms.Connection;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;

import junit.framework.TestCase;

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

/**
 * @author chirino
 */
public class KahaDBVersionTest extends TestCase {

   static String basedir;

   static {
      try {
         ProtectionDomain protectionDomain = KahaDBVersionTest.class.getProtectionDomain();
         basedir = new File(new File(protectionDomain.getCodeSource().getLocation().getPath()), "../..").getCanonicalPath();
      }
      catch (IOException e) {
         basedir = ".";
      }
   }

   static final Logger LOG = LoggerFactory.getLogger(KahaDBVersionTest.class);
   final static File VERSION_1_DB = new File(basedir + "/src/test/resources/org/apache/activemq/store/kahadb/KahaDBVersion1");
   final static File VERSION_2_DB = new File(basedir + "/src/test/resources/org/apache/activemq/store/kahadb/KahaDBVersion2");
   final static File VERSION_3_DB = new File(basedir + "/src/test/resources/org/apache/activemq/store/kahadb/KahaDBVersion3");
   final static File VERSION_4_DB = new File(basedir + "/src/test/resources/org/apache/activemq/store/kahadb/KahaDBVersion4");

   BrokerService broker = null;

   protected BrokerService createBroker(KahaDBPersistenceAdapter kaha) throws Exception {
      broker = new BrokerService();
      broker.setUseJmx(false);
      broker.setPersistenceAdapter(kaha);
      broker.start();
      return broker;
   }

   @Override
   protected void tearDown() throws Exception {
      if (broker != null) {
         broker.stop();
      }
   }

   public void XtestCreateStore() throws Exception {
      KahaDBPersistenceAdapter kaha = new KahaDBPersistenceAdapter();
      File dir = new File("src/test/resources/org/apache/activemq/store/kahadb/KahaDBVersion4");
      IOHelper.deleteFile(dir);
      kaha.setDirectory(dir);
      kaha.setJournalMaxFileLength(1024 * 1024);
      BrokerService broker = createBroker(kaha);
      ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("vm://localhost");
      Connection connection = cf.createConnection();
      connection.setClientID("test");
      connection.start();
      producerSomeMessages(connection, 1000);
      connection.close();
      broker.stop();
   }

   private void producerSomeMessages(Connection connection, int numToSend) throws Exception {
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      Topic topic = session.createTopic("test.topic");
      Queue queue = session.createQueue("test.queue");
      MessageConsumer consumer = session.createDurableSubscriber(topic, "test");
      consumer.close();
      MessageProducer producer = session.createProducer(topic);
      producer.setPriority(9);
      for (int i = 0; i < numToSend; i++) {
         Message msg = session.createTextMessage("test message:" + i);
         producer.send(msg);
      }
      LOG.info("sent " + numToSend + " to topic");
      producer = session.createProducer(queue);
      for (int i = 0; i < numToSend; i++) {
         Message msg = session.createTextMessage("test message:" + i);
         producer.send(msg);
      }
      LOG.info("sent " + numToSend + " to queue");
   }

   public void testVersion1Conversion() throws Exception {
      doConvertRestartCycle(VERSION_1_DB);
   }

   public void testVersion2Conversion() throws Exception {
      doConvertRestartCycle(VERSION_2_DB);
   }

   public void testVersion3Conversion() throws Exception {
      doConvertRestartCycle(VERSION_3_DB);
   }

   public void testVersion4Conversion() throws Exception {
      doConvertRestartCycle(VERSION_4_DB);
   }

   public void doConvertRestartCycle(File existingStore) throws Exception {

      File testDir = new File("target/activemq-data/kahadb/versionDB");
      IOHelper.deleteFile(testDir);
      IOHelper.copyFile(existingStore, testDir);
      final int numToSend = 1000;

      // on repeat store will be upgraded
      for (int repeats = 0; repeats < 3; repeats++) {
         KahaDBPersistenceAdapter kaha = new KahaDBPersistenceAdapter();
         kaha.setDirectory(testDir);
         kaha.setJournalMaxFileLength(1024 * 1024);
         BrokerService broker = createBroker(kaha);
         ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory("vm://localhost");
         Connection connection = cf.createConnection();
         connection.setClientID("test");
         connection.start();
         Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
         Topic topic = session.createTopic("test.topic");
         Queue queue = session.createQueue("test.queue");

         if (repeats > 0) {
            // upgraded store will be empty so generated some more messages
            producerSomeMessages(connection, numToSend);
         }

         MessageConsumer queueConsumer = session.createConsumer(queue);
         int count = 0;
         for (int i = 0; i < (repeats == 0 ? 1000 : numToSend); i++) {
            TextMessage msg = (TextMessage) queueConsumer.receive(10000);
            count++;
            // System.err.println(msg.getText());
            assertNotNull(msg);
         }
         LOG.info("Consumed " + count + " from queue");
         count = 0;
         MessageConsumer topicConsumer = session.createDurableSubscriber(topic, "test");
         for (int i = 0; i < (repeats == 0 ? 1000 : numToSend); i++) {
            TextMessage msg = (TextMessage) topicConsumer.receive(10000);
            count++;
            // System.err.println(msg.getText());
            assertNotNull("" + count, msg);
         }
         LOG.info("Consumed " + count + " from topic");
         connection.close();

         broker.stop();
      }
   }
}
