/**
 * 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.transport.failover;

import junit.framework.TestCase;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerService;

public class FailoverRandomTest extends TestCase {

   BrokerService brokerA, brokerB;

   public void setUp() throws Exception {
      brokerA = createBroker("A");
      brokerB = createBroker("B");
   }

   public void tearDown() throws Exception {
      brokerA.stop();
      brokerB.stop();
   }

   private BrokerService createBroker(String name) throws Exception {
      BrokerService broker = new BrokerService();
      broker.setBrokerName("Broker" + name);
      broker.addConnector("tcp://localhost:0");
      broker.getManagementContext().setCreateConnector(false);
      broker.setPersistent(false);
      broker.setUseJmx(false);
      broker.start();
      return broker;
   }

   public void testRandomConnections() throws Exception {
      String failoverUrl = "failover:(" + brokerA.getTransportConnectors().get(0).getConnectUri() + "," + brokerB.getTransportConnectors().get(0).getConnectUri() + ")";
      ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(failoverUrl);

      ActiveMQConnection connection = (ActiveMQConnection) cf.createConnection();
      connection.start();
      String brokerName1 = connection.getBrokerName();
      assertNotNull(brokerName1);
      connection.close();

      String brokerName2 = brokerName1;
      int attempts = 40;
      while (brokerName1.equals(brokerName2) && attempts-- > 0) {
         connection = (ActiveMQConnection) cf.createConnection();
         connection.start();
         brokerName2 = connection.getBrokerName();
         assertNotNull(brokerName2);
         connection.close();
      }
      assertTrue(brokerName1 + "!=" + brokerName2, !brokerName1.equals(brokerName2));
   }
}
