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 javax.jms.Connection;
  import javax.jms.JMSException;
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  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.Ignore;
  import org.junit.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  @Ignore
  public class FailoverPriorityTest extends OpenwireArtemisBaseTest {
  
     protected final Logger LOG = LoggerFactory.getLogger(getClass());
  
     private static final String BROKER_A_CLIENT_TC_ADDRESS = "tcp://127.0.0.1:61616";
     private static final String BROKER_B_CLIENT_TC_ADDRESS = "tcp://127.0.0.1:61617";
     private static final String BROKER_C_CLIENT_TC_ADDRESS = "tcp://127.0.0.1:61618";
     private final Map<Integer, String> urls = new HashMap<>();
  
     private final List<ActiveMQConnection> connections = new ArrayList<>();
     private final EmbeddedJMS[] servers = new EmbeddedJMS[3];
     private String clientUrl;
     private final Map<String, String> params = new HashMap<>();
  
     @Before
     public void setUp() throws Exception {
        urls.put(0, BROKER_A_CLIENT_TC_ADDRESS);
        urls.put(1, BROKER_B_CLIENT_TC_ADDRESS);
        params.clear();
        params.put("rebalanceClusterClients", "true");
        params.put("updateClusterClients", "true");
        params.put("updateClusterClientsOnRemove", "true");
     }
  
     @After
     public void tearDown() throws Exception {
        shutdownClients();
        for (EmbeddedJMS server : servers) {
           if (server != null) {
              server.stop();
           }
        }
     }
  
     @Test
     public void testPriorityBackup() throws Exception {
        Configuration config0 = createConfig("127.0.0.1", 0);
        Configuration config1 = createConfig("127.0.0.1", 1);
  
        deployClusterConfiguration(config0, 1);
        deployClusterConfiguration(config1, 0);
  
        servers[0] = new EmbeddedJMS().setConfiguration(config0).setJmsConfiguration(new JMSConfigurationImpl());
        servers[1] = new EmbeddedJMS().setConfiguration(config1).setJmsConfiguration(new JMSConfigurationImpl());
        servers[0].start();
        servers[1].start();
  
        Assert.assertTrue(servers[0].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 2));
        Assert.assertTrue(servers[1].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 2));
  
        Thread.sleep(1000);
  
        setClientUrl("failover:(" + BROKER_A_CLIENT_TC_ADDRESS + "," + BROKER_B_CLIENT_TC_ADDRESS + ")?randomize=false&priorityBackup=true&initialReconnectDelay=1000&useExponentialBackOff=false");
        createClients(5);
  
        assertAllConnectedTo(urls.get(0));
  
        restart(false, 0, 1);
  
        for (int i = 0; i < 3; i++) {
           restart(true, 0, 1);
        }
  
        Thread.sleep(5000);
  
        restart(false, 0, 1);
  
     }
  
     @Test
     public void testPriorityBackupList() throws Exception {
        Configuration config0 = createConfig("127.0.0.1", 0);
        Configuration config1 = createConfig("127.0.0.1", 1);
  
        deployClusterConfiguration(config0, 1);
        deployClusterConfiguration(config1, 0);
  
        servers[0] = new EmbeddedJMS().setConfiguration(config0).setJmsConfiguration(new JMSConfigurationImpl());
        servers[1] = new EmbeddedJMS().setConfiguration(config1).setJmsConfiguration(new JMSConfigurationImpl());
        servers[0].start();
        servers[1].start();
  
        Assert.assertTrue(servers[0].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 2));
        Assert.assertTrue(servers[1].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 2));
        Thread.sleep(1000);
  
        setClientUrl("failover:(" + BROKER_A_CLIENT_TC_ADDRESS + "," + BROKER_B_CLIENT_TC_ADDRESS + ")?randomize=false&priorityBackup=true&priorityURIs=tcp://127.0.0.1:61617&initialReconnectDelay=1000&useExponentialBackOff=false");
        createClients(5);
  
        Thread.sleep(3000);
  
        assertAllConnectedTo(urls.get(1));
  
        restart(false, 1, 0);
  
        for (int i = 0; i < 3; i++) {
           restart(true, 1, 0);
        }
  
        restart(false, 1, 0);
     }
  
     @Test
     public void testThreeBrokers() throws Exception {
        setupThreeBrokers();
        Thread.sleep(1000);
  
        setClientUrl("failover:(" + BROKER_A_CLIENT_TC_ADDRESS + "," + BROKER_B_CLIENT_TC_ADDRESS + "," + BROKER_C_CLIENT_TC_ADDRESS + ")?randomize=false&priorityBackup=true&initialReconnectDelay=1000&useExponentialBackOff=false");
  
        createClients(5);
  
        assertAllConnectedTo(urls.get(0));
  
        restart(true, 0, 1, 3);
     }
  
     @Test
     public void testPriorityBackupAndUpdateClients() throws Exception {
        Configuration config0 = createConfig("127.0.0.1", 0);
        Configuration config1 = createConfig("127.0.0.1", 1);
  
        deployClusterConfiguration(config0, 1);
        deployClusterConfiguration(config1, 0);
  
        servers[0] = new EmbeddedJMS().setConfiguration(config0).setJmsConfiguration(new JMSConfigurationImpl());
        servers[1] = new EmbeddedJMS().setConfiguration(config1).setJmsConfiguration(new JMSConfigurationImpl());
        servers[0].start();
        servers[1].start();
  
        Assert.assertTrue(servers[0].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 2));
        Assert.assertTrue(servers[1].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 2));
  
        Thread.sleep(1000);
  
        setClientUrl("failover:(" + BROKER_A_CLIENT_TC_ADDRESS + "," + BROKER_B_CLIENT_TC_ADDRESS + ")?randomize=false&priorityBackup=true&initialReconnectDelay=1000&useExponentialBackOff=false");
  
        createClients(5);
  
        // Let's wait a little bit longer just in case it takes a while to realize that the
        // Broker A is the one with higher priority.
        Thread.sleep(5000);
  
        assertAllConnectedTo(urls.get(0));
     }
  
     private void restart(boolean primary, int primaryID, int secondaryID) throws Exception {
        restart(primary, primaryID, secondaryID, 2);
     }
  
     private void restart(boolean primary, int primaryID, int secondaryID, int total) throws Exception {
  
        Thread.sleep(1000);
  
        if (primary) {
           LOG.info("Stopping " + primaryID);
           stopBroker(primaryID);
           Assert.assertTrue(servers[secondaryID].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, total - 1));
        } else {
           LOG.info("Stopping " + secondaryID);
           stopBroker(secondaryID);
           Assert.assertTrue(servers[primaryID].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, total - 1));
        }
        Thread.sleep(5000);
  
        if (primary) {
           assertAllConnectedTo(urls.get(secondaryID));
        } else {
           assertAllConnectedTo(urls.get(primaryID));
        }
  
        if (primary) {
           Configuration config = createConfig("127.0.0.1", primaryID);
  
           deployClusterConfiguration(config, secondaryID);
  
           servers[primaryID] = new EmbeddedJMS().setConfiguration(config).setJmsConfiguration(new JMSConfigurationImpl());
           servers[primaryID].start();
  
           Assert.assertTrue(servers[primaryID].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, total));
           Assert.assertTrue(servers[secondaryID].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, total));
        } else {
           Configuration config = createConfig("127.0.0.1", secondaryID);
  
           deployClusterConfiguration(config, primaryID);
  
           servers[secondaryID] = new EmbeddedJMS().setConfiguration(config).setJmsConfiguration(new JMSConfigurationImpl());
           servers[secondaryID].start();
  
           Assert.assertTrue(servers[primaryID].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, total));
           Assert.assertTrue(servers[secondaryID].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, total));
        }
  
        Thread.sleep(5000);
  
        assertAllConnectedTo(urls.get(primaryID));
  
     }
  
     private void stopBroker(int serverID) throws Exception {
        servers[serverID].stop();
     }
  
     public void setClientUrl(String clientUrl) {
        this.clientUrl = clientUrl;
     }
  
     protected void createClients(int numOfClients) throws Exception {
        ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory(clientUrl);
        for (int i = 0; i < numOfClients; i++) {
           ActiveMQConnection c = (ActiveMQConnection) factory.createConnection();
           c.start();
           connections.add(c);
        }
     }
  
     protected void shutdownClients() throws JMSException {
        for (Connection c : connections) {
           c.close();
        }
     }
  
     protected void assertAllConnectedTo(String url) throws Exception {
        for (ActiveMQConnection c : connections) {
           Assert.assertEquals(url, c.getTransportChannel().getRemoteAddress());
        }
     }
  
     private void setupThreeBrokers() throws Exception {
  
        params.put("rebalanceClusterClients", "false");
        params.put("updateClusterClients", "false");
        params.put("updateClusterClientsOnRemove", "false");
  
        Configuration config0 = createConfig("127.0.0.1", 0, params);
        Configuration config1 = createConfig("127.0.0.1", 1, params);
        Configuration config2 = createConfig("127.0.0.1", 2, params);
  
        deployClusterConfiguration(config0, 1, 2);
        deployClusterConfiguration(config1, 0, 2);
        deployClusterConfiguration(config2, 0, 1);
  
        servers[0] = new EmbeddedJMS().setConfiguration(config0).setJmsConfiguration(new JMSConfigurationImpl());
        servers[1] = new EmbeddedJMS().setConfiguration(config1).setJmsConfiguration(new JMSConfigurationImpl());
        servers[2] = new EmbeddedJMS().setConfiguration(config2).setJmsConfiguration(new JMSConfigurationImpl());
  
        servers[0].start();
        servers[1].start();
        servers[2].start();
  
        Assert.assertTrue(servers[0].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 3));
        Assert.assertTrue(servers[1].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 3));
        Assert.assertTrue(servers[2].waitClusterForming(100, TimeUnit.MILLISECONDS, 20, 3));
     }
  
  }
  