/**
 * 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.usecases;

import java.io.File;
import java.io.IOException;
import java.net.URI;

import javax.jms.Destination;
import javax.jms.MessageConsumer;

import org.apache.activemq.JmsMultipleBrokersTestSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.region.DestinationInterceptor;
import org.apache.activemq.broker.region.virtual.VirtualDestination;
import org.apache.activemq.broker.region.virtual.VirtualDestinationInterceptor;
import org.apache.activemq.broker.region.virtual.VirtualTopic;
import org.apache.activemq.network.NetworkConnector;
import org.apache.activemq.store.kahadb.KahaDBStore;
import org.apache.activemq.util.MessageIdList;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ThreeBrokerVirtualTopicNetworkTest extends JmsMultipleBrokersTestSupport {

   private static final Logger LOG = LoggerFactory.getLogger(ThreeBrokerVirtualTopicNetworkTest.class);
   protected static final int MESSAGE_COUNT = 1;
   public boolean dynamicOnly = false;

   public void testNetworkVirtualTopic() throws Exception {
      int networkTTL = 6;
      boolean conduitSubs = true;
      // Setup broker networks
      bridgeAndConfigureBrokers("BrokerA", "BrokerB", dynamicOnly, networkTTL, conduitSubs);
      bridgeAndConfigureBrokers("BrokerA", "BrokerC", dynamicOnly, networkTTL, conduitSubs);
      bridgeAndConfigureBrokers("BrokerB", "BrokerA", dynamicOnly, networkTTL, conduitSubs);
      bridgeAndConfigureBrokers("BrokerB", "BrokerC", dynamicOnly, networkTTL, conduitSubs);
      bridgeAndConfigureBrokers("BrokerC", "BrokerA", dynamicOnly, networkTTL, conduitSubs);
      bridgeAndConfigureBrokers("BrokerC", "BrokerB", dynamicOnly, networkTTL, conduitSubs);

      startAllBrokers();
      waitForBridgeFormation();

      // Setup destination
      Destination dest = createDestination("TEST.FOO", true);

      // Setup consumers
      MessageConsumer clientA = createConsumer("BrokerA", createDestination("Consumer.A.TEST.FOO", false));
      MessageConsumer clientB = createConsumer("BrokerB", createDestination("Consumer.B.TEST.FOO", false));
      MessageConsumer clientC = createConsumer("BrokerC", createDestination("Consumer.C.TEST.FOO", false));

      Thread.sleep(2000);

      // Send messages
      sendMessages("BrokerA", dest, 1);

      // Get message count
      MessageIdList msgsA = getConsumerMessages("BrokerA", clientA);
      MessageIdList msgsB = getConsumerMessages("BrokerB", clientB);
      MessageIdList msgsC = getConsumerMessages("BrokerC", clientC);

      msgsA.waitForMessagesToArrive(1);
      msgsB.waitForMessagesToArrive(1);
      msgsC.waitForMessagesToArrive(1);

      // ensure we don't get any more messages
      Thread.sleep(2000);

      assertEquals(1, msgsA.getMessageCount());
      assertEquals(1, msgsB.getMessageCount());
      assertEquals(1, msgsC.getMessageCount());

      // restart to ensure no hanging messages
      LOG.info("Restarting brokerA");
      BrokerItem brokerItem = brokers.remove("BrokerA");
      if (brokerItem != null) {
         brokerItem.destroy();
      }

      BrokerService restartedBroker = createAndConfigureBroker(new URI("broker:(tcp://localhost:61616)/BrokerA?useJmx=false"));
      bridgeAndConfigureBrokers("BrokerA", "BrokerB", dynamicOnly, networkTTL, conduitSubs);
      bridgeAndConfigureBrokers("BrokerA", "BrokerC", dynamicOnly, networkTTL, conduitSubs);
      restartedBroker.start();
      waitForBridgeFormation();

      clientA = createConsumer("BrokerA", createDestination("Consumer.A.TEST.FOO", false));
      LOG.info("recreated clientA");

      Thread.sleep(2000);

      sendMessages("BrokerA", dest, 10);

      msgsA = getConsumerMessages("BrokerA", clientA);

      msgsA.waitForMessagesToArrive(10);
      msgsB.waitForMessagesToArrive(11);
      msgsC.waitForMessagesToArrive(11);

      // ensure we don't get any more messages
      Thread.sleep(2000);

      LOG.info("MessagesA: " + msgsA.getMessageIds());
      assertEquals(10, msgsA.getMessageCount());
      assertEquals(11, msgsB.getMessageCount());
      assertEquals(11, msgsC.getMessageCount());

      // restart to ensure no hanging messages
      LOG.info("Restarting brokerA again");
      brokerItem = brokers.remove("BrokerA");
      if (brokerItem != null) {
         brokerItem.destroy();
      }

      restartedBroker = createAndConfigureBroker(new URI("broker:(tcp://localhost:61616)/BrokerA?useJmx=false"));
      bridgeAndConfigureBrokers("BrokerA", "BrokerB", dynamicOnly, networkTTL, conduitSubs);
      bridgeAndConfigureBrokers("BrokerA", "BrokerC", dynamicOnly, networkTTL, conduitSubs);
      restartedBroker.start();
      waitForBridgeFormation();

      clientA = createConsumer("BrokerA", createDestination("Consumer.A.TEST.FOO", false));
      LOG.info("recreated clientA again");

      Thread.sleep(2000);

      msgsA = getConsumerMessages("BrokerA", clientA);

      // ensure we don't get any more messages
      Thread.sleep(5000);

      LOG.info("Extra MessagesA: " + msgsA.getMessageIds());
      assertEquals(0, msgsA.getMessageCount());
      assertEquals(11, msgsB.getMessageCount());
      assertEquals(11, msgsC.getMessageCount());
   }

   private void bridgeAndConfigureBrokers(String local,
                                          String remote,
                                          boolean dynamicOnly,
                                          int networkTTL,
                                          boolean conduitSubs) throws Exception {
      NetworkConnector bridge = bridgeBrokers(local, remote, dynamicOnly, networkTTL, conduitSubs);
      bridge.setDecreaseNetworkConsumerPriority(true);
   }

   public void setUp() throws Exception {
      super.setAutoFail(true);
      super.setUp();
      String options = new String("?useJmx=false&deleteAllMessagesOnStartup=true");
      createAndConfigureBroker(new URI("broker:(tcp://localhost:61616)/BrokerA" + options));
      createAndConfigureBroker(new URI("broker:(tcp://localhost:61617)/BrokerB" + options));
      createAndConfigureBroker(new URI("broker:(tcp://localhost:61618)/BrokerC" + options));
   }

   private BrokerService createAndConfigureBroker(URI uri) throws Exception {
      BrokerService broker = createBroker(uri);

      configurePersistenceAdapter(broker);

      // make all topics virtual and consumers use the default prefix
      VirtualDestinationInterceptor virtualDestinationInterceptor = new VirtualDestinationInterceptor();
      virtualDestinationInterceptor.setVirtualDestinations(new VirtualDestination[]{new VirtualTopic()});
      DestinationInterceptor[] destinationInterceptors = new DestinationInterceptor[]{virtualDestinationInterceptor};
      broker.setDestinationInterceptors(destinationInterceptors);
      return broker;
   }

   protected void configurePersistenceAdapter(BrokerService broker) throws IOException {
      File dataFileDir = new File("target/test-amq-data/kahadb/" + broker.getBrokerName());
      KahaDBStore kaha = new KahaDBStore();
      kaha.setDirectory(dataFileDir);
      broker.setPersistenceAdapter(kaha);
   }

}
