/**
 * 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.broker.util;

import javax.jms.Connection;
import javax.jms.DeliveryMode;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;

import junit.framework.TestCase;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerPlugin;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.broker.region.policy.DeadLetterStrategy;
import org.apache.activemq.broker.region.policy.IndividualDeadLetterStrategy;
import org.apache.activemq.broker.region.policy.PolicyEntry;
import org.apache.activemq.broker.region.policy.PolicyMap;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class TimeStampingBrokerPluginTest extends TestCase {

   BrokerService broker;
   TransportConnector tcpConnector;
   MessageProducer producer;
   MessageConsumer consumer;
   Connection connection;
   Session session;
   Destination destination;
   String queue = "TEST.FOO";
   long expiry = 500;

   @Override
   @Before
   public void setUp() throws Exception {
      TimeStampingBrokerPlugin tsbp = new TimeStampingBrokerPlugin();
      tsbp.setZeroExpirationOverride(expiry);
      tsbp.setTtlCeiling(expiry);

      broker = new BrokerService();
      broker.setPersistent(false);
      broker.setUseJmx(true);
      broker.setPlugins(new BrokerPlugin[]{tsbp});
      tcpConnector = broker.addConnector("tcp://localhost:0");

      // Add policy and individual DLQ strategy
      PolicyEntry policy = new PolicyEntry();
      DeadLetterStrategy strategy = new IndividualDeadLetterStrategy();
      strategy.setProcessExpired(true);
      ((IndividualDeadLetterStrategy) strategy).setUseQueueForQueueMessages(true);
      ((IndividualDeadLetterStrategy) strategy).setQueuePrefix("DLQ.");
      strategy.setProcessNonPersistent(true);
      policy.setDeadLetterStrategy(strategy);

      PolicyMap pMap = new PolicyMap();
      pMap.setDefaultEntry(policy);

      broker.setDestinationPolicy(pMap);

      broker.start();
      // Create a ConnectionFactory
      ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(tcpConnector.getConnectUri());

      // Create a Connection
      connection = connectionFactory.createConnection();
      connection.start();

      // Create a Session
      session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

      // Create the destination Queue
      destination = session.createQueue(queue);

      // Create a MessageProducer from the Session to the Topic or Queue
      producer = session.createProducer(destination);
      producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
   }

   @Override
   @After
   public void tearDown() throws Exception {
      // Clean up
      producer.close();
      consumer.close();
      session.close();
      connection.close();
      broker.stop();
   }

   @Test
   public void testExpirationSet() throws Exception {

      // Create a messages
      Message sentMessage = session.createMessage();

      // Tell the producer to send the message
      long beforeSend = System.currentTimeMillis();
      producer.send(sentMessage);

      // Create a MessageConsumer from the Session to the Topic or Queue
      consumer = session.createConsumer(destination);

      // Wait for a message
      Message receivedMessage = consumer.receive(1000);

      // assert we got the same message ID we sent
      assertEquals(sentMessage.getJMSMessageID(), receivedMessage.getJMSMessageID());

      // assert message timestamp is in window
      assertTrue("Expiration should be not null" + receivedMessage.getJMSExpiration() + "\n", Long.valueOf(receivedMessage.getJMSExpiration()) != null);

      // assert message expiration is in window
      assertTrue("Before send: " + beforeSend + " Msg ts: " + receivedMessage.getJMSTimestamp() + " Msg Expiry: " + receivedMessage.getJMSExpiration(), beforeSend <= receivedMessage.getJMSExpiration() && receivedMessage.getJMSExpiration() <= (receivedMessage.getJMSTimestamp() + expiry));
   }

   @Test
   public void testExpirationCelingSet() throws Exception {

      // Create a messages
      Message sentMessage = session.createMessage();
      // Tell the producer to send the message
      long beforeSend = System.currentTimeMillis();
      long sendExpiry = beforeSend + (expiry * 22);
      sentMessage.setJMSExpiration(sendExpiry);

      producer.send(sentMessage);

      // Create a MessageConsumer from the Session to the Topic or Queue
      consumer = session.createConsumer(destination);

      // Wait for a message
      Message receivedMessage = consumer.receive(1000);

      // assert we got the same message ID we sent
      assertEquals(sentMessage.getJMSMessageID(), receivedMessage.getJMSMessageID());

      // assert message timestamp is in window
      assertTrue("Expiration should be not null" + receivedMessage.getJMSExpiration() + "\n", Long.valueOf(receivedMessage.getJMSExpiration()) != null);

      // assert message expiration is in window
      assertTrue("Sent expiry: " + sendExpiry + " Recv ts: " + receivedMessage.getJMSTimestamp() + " Recv expiry: " + receivedMessage.getJMSExpiration(), beforeSend <= receivedMessage.getJMSExpiration() && receivedMessage.getJMSExpiration() <= (receivedMessage.getJMSTimestamp() + expiry));
   }

   @Test
   public void testExpirationDLQ() throws Exception {

      // Create a messages
      Message sentMessage = session.createMessage();
      // Tell the producer to send the message
      long beforeSend = System.currentTimeMillis();
      long sendExpiry = beforeSend + expiry;
      sentMessage.setJMSExpiration(sendExpiry);

      producer.send(sentMessage);

      // Create a MessageConsumer from the Session to the Topic or Queue
      consumer = session.createConsumer(destination);

      Thread.sleep(expiry + 250);

      // Wait for a message
      Message receivedMessage = consumer.receive(1000);

      // Message should roll to DLQ
      assertNull(receivedMessage);

      // Close old consumer, setup DLQ listener
      consumer.close();
      consumer = session.createConsumer(session.createQueue("DLQ." + queue));

      // Get mesage from DLQ
      receivedMessage = consumer.receive(1000);

      // assert we got the same message ID we sent
      assertEquals(sentMessage.getJMSMessageID(), receivedMessage.getJMSMessageID());

      // assert message timestamp is in window
      //System.out.println("Recv: " + receivedMessage.getJMSExpiration());
      assertEquals("Expiration should be zero" + receivedMessage.getJMSExpiration() + "\n", receivedMessage.getJMSExpiration(), 0);

   }
}
