content: /*
   * 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 java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.activemq.ActiveMQConnection;
  import org.apache.activemq.ActiveMQConnectionFactory;
  import org.apache.activemq.artemis.core.config.Configuration;
  import org.apache.activemq.artemis.jms.server.config.impl.JMSConfigurationImpl;
  import org.apache.activemq.artemis.jms.server.embedded.EmbeddedJMS;
  import org.apache.activemq.broker.artemiswrapper.OpenwireArtemisBaseTest;
  import org.junit.After;
  import org.junit.Assert;
  import org.junit.Before;
  import org.junit.Test;
  
  public class FailoverRandomTest extends OpenwireArtemisBaseTest {
  
     private EmbeddedJMS server0, server1;
  
     @Before
     public void setUp() throws Exception {
        Map<String, String> params = new HashMap<>();
  
        params.put("rebalanceClusterClients", "true");
        params.put("updateClusterClients", "true");
        params.put("updateClusterClientsOnRemove", "true");
        params.put("brokerName", "A");
  
        Configuration config0 = createConfig("127.0.0.1", 0, params);
  
        params.put("brokerName", "B");
        Configuration config1 = createConfig("127.0.0.2", 1, params);
  
        deployClusterConfiguration(config0, 1);
        deployClusterConfiguration(config1, 0);
  
        server0 = new EmbeddedJMS().setConfiguration(config0).setJmsConfiguration(new JMSConfigurationImpl());
        server1 = new EmbeddedJMS().setConfiguration(config1).setJmsConfiguration(new JMSConfigurationImpl());
  
        server0.start();
        server1.start();
  
        Assert.assertTrue(server0.waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 2));
        Assert.assertTrue(server1.waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 2));
     }
  
     @After
     public void tearDown() throws Exception {
        server0.stop();
        server1.stop();
     }
  
     @Test
     public void testRandomConnections() throws Exception {
        String failoverUrl = "failover:(" + newURI(0) + "," + newURI(1) + ")";
        ActiveMQConnectionFactory cf = new ActiveMQConnectionFactory(failoverUrl);
  
        ActiveMQConnection connection = (ActiveMQConnection) cf.createConnection();
        connection.start();
        final String brokerName1 = connection.getBrokerName();
        Assert.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();
           Assert.assertNotNull(brokerName2);
           connection.close();
        }
        Assert.assertTrue(brokerName1 + "!=" + brokerName2, !brokerName1.equals(brokerName2));
     }
  }
  