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.artemis.tests.integration.cluster.failover;
  
  import java.util.HashSet;
  import java.util.Set;
  
  import org.apache.activemq.artemis.api.core.client.ClientSession;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.server.cluster.impl.MessageLoadBalancingType;
  import org.apache.activemq.artemis.tests.integration.cluster.distribution.ClusterTestBase;
  import org.apache.activemq.artemis.tests.integration.cluster.util.SameProcessActiveMQServer;
  import org.apache.activemq.artemis.tests.integration.cluster.util.TestableServer;
  import org.junit.jupiter.api.BeforeEach;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import java.lang.invoke.MethodHandles;
  
  public abstract class ClusterWithBackupFailoverTestBase extends ClusterTestBase {
  
     protected static final String QUEUE_NAME = "queue0";
     protected static final String QUEUES_TESTADDRESS = "queues.testaddress";
  
     protected static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     protected abstract void setupCluster(MessageLoadBalancingType messageLoadBalancingType) throws Exception;
  
     protected abstract void setupServers() throws Exception;
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        super.setUp();
        setupServers();
     }
  
     protected boolean isNetty() {
        return false;
     }
  
     protected void waitForBindings() throws Exception {
        waitForBindings(0, QUEUES_TESTADDRESS, 1, 1, true);
        waitForBindings(1, QUEUES_TESTADDRESS, 1, 1, true);
        waitForBindings(2, QUEUES_TESTADDRESS, 1, 1, true);
  
        waitForBindings(0, QUEUES_TESTADDRESS, 2, 2, false);
        waitForBindings(1, QUEUES_TESTADDRESS, 2, 2, false);
        waitForBindings(2, QUEUES_TESTADDRESS, 2, 2, false);
     }
  
     protected void setupCluster() throws Exception {
        setupCluster(MessageLoadBalancingType.ON_DEMAND);
     }
  
     protected void failNode(final int node) throws Exception {
        failNode(node, node);
     }
  
     /**
      * @param node                The node which we should fail
      * @param originalPrimaryNode The number of the original node, to locate session to fail
      */
     protected void failNode(final int node, final int originalPrimaryNode) throws Exception {
        logger.debug("*** failing node {}", node);
  
        ActiveMQServer server = getServer(node);
  
        TestableServer tstServer = new SameProcessActiveMQServer(server);
  
        ClientSession[] sessionsArray = exploreSessions(originalPrimaryNode);
  
        tstServer.crash(sessionsArray);
     }
  
     private ClientSession[] exploreSessions(final int node) {
        Set<ClientSession> sessions = new HashSet<>();
  
        for (ConsumerHolder holder : consumers) {
           if (holder != null && holder.getNode() == node && holder.getSession() != null) {
              sessions.add(holder.getSession());
           }
        }
  
        ClientSession[] sessionsArray = sessions.toArray(new ClientSession[sessions.size()]);
        return sessionsArray;
     }
  }
  