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.server;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.lang.invoke.MethodHandles;
  
  import org.apache.activemq.artemis.api.core.SimpleString;
  import org.apache.activemq.artemis.api.core.client.ClientMessage;
  import org.apache.activemq.artemis.core.config.ScaleDownConfiguration;
  import org.apache.activemq.artemis.core.config.ha.PrimaryOnlyPolicyConfiguration;
  import org.apache.activemq.artemis.core.postoffice.impl.LocalQueueBinding;
  import org.apache.activemq.artemis.core.server.cluster.impl.ClusterConnectionImpl;
  import org.apache.activemq.artemis.core.server.cluster.impl.MessageLoadBalancingType;
  import org.apache.activemq.artemis.core.settings.impl.AddressSettings;
  import org.apache.activemq.artemis.tests.integration.cluster.distribution.ClusterTestBase;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class ScaleDownRemoveSFTest extends ClusterTestBase {
  
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     public ScaleDownRemoveSFTest() {
     }
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        super.setUp();
  
        ScaleDownConfiguration scaleDownConfiguration = new ScaleDownConfiguration();
        setupPrimaryServer(0, isFileStorage(), isNetty(), true);
        setupPrimaryServer(1, isFileStorage(), isNetty(), true);
        PrimaryOnlyPolicyConfiguration haPolicyConfiguration0 = (PrimaryOnlyPolicyConfiguration) servers[0].getConfiguration().getHAPolicyConfiguration();
        haPolicyConfiguration0.setScaleDownConfiguration(scaleDownConfiguration);
        PrimaryOnlyPolicyConfiguration haPolicyConfiguration1 = (PrimaryOnlyPolicyConfiguration) servers[1].getConfiguration().getHAPolicyConfiguration();
        haPolicyConfiguration1.setScaleDownConfiguration(new ScaleDownConfiguration());
  
        setupClusterConnection("cluster0", "testAddress", MessageLoadBalancingType.ON_DEMAND, 1, isNetty(), 0, 1);
        setupClusterConnection("cluster0", "testAddress", MessageLoadBalancingType.ON_DEMAND, 1, isNetty(), 1, 0);
        haPolicyConfiguration0.getScaleDownConfiguration().getConnectors().addAll(servers[0].getConfiguration().getClusterConfigurations().iterator().next().getStaticConnectors());
        haPolicyConfiguration1.getScaleDownConfiguration().getConnectors().addAll(servers[1].getConfiguration().getClusterConfigurations().iterator().next().getStaticConnectors());
        servers[0].getConfiguration().getAddressSettings().put("#", new AddressSettings().setRedistributionDelay(0));
        servers[1].getConfiguration().getAddressSettings().put("#", new AddressSettings().setRedistributionDelay(0));
        startServers(0, 1);
        setupSessionFactory(0, isNetty());
        setupSessionFactory(1, isNetty());
     }
  
     @Override
     @AfterEach
     public void tearDown() throws Exception {
        super.tearDown();
     }
  
  
     protected boolean isNetty() {
        return true;
     }
  
     @Test
     public void testScaleDownCheckSF() throws Exception {
        final int TEST_SIZE = 2;
        final String addressName = "testAddress";
        final String queueName1 = "testQueue1";
  
        // create 2 queues on each node mapped to the same address
        createQueue(0, addressName, queueName1, null, true);
        createQueue(1, addressName, queueName1, null, true);
  
        // send messages to node 0
        send(0, addressName, TEST_SIZE, true, null);
  
        // consume a message from queue 1
        addConsumer(1, 0, queueName1, null, false);
        ClientMessage clientMessage = consumers[1].getConsumer().receive(5_000);
        assertNotNull(clientMessage);
        clientMessage.acknowledge();
        consumers[1].getSession().commit();
  
        assertEquals(TEST_SIZE - 1, getMessageCount(((LocalQueueBinding) servers[0].getPostOffice().getBinding(SimpleString.of(queueName1))).getQueue()));
  
        //check sf queue on server1 exists
        ClusterConnectionImpl clusterconn1 = (ClusterConnectionImpl) servers[1].getClusterManager().getClusterConnection("cluster0");
        SimpleString sfQueueName = clusterconn1.getSfQueueName(servers[0].getNodeID().toString());
  
        logger.debug("[sf queue on server 1]: {}", sfQueueName);
  
        assertTrue(servers[1].queueQuery(sfQueueName).isExists());
  
        // trigger scaleDown from node 0 to node 1
        servers[0].stop();
  
        addConsumer(0, 1, queueName1, null);
        clientMessage = consumers[0].getConsumer().receive(10_000);
        assertNotNull(clientMessage);
        clientMessage.acknowledge();
  
        // ensure there are no more messages on queue 1
        clientMessage = consumers[0].getConsumer().receiveImmediate();
        assertNull(clientMessage);
        removeConsumer(0);
  
        //check
        assertFalse(servers[1].queueQuery(sfQueueName).isExists());
        assertFalse(servers[1].addressQuery(sfQueueName).isExists());
  
     }
  
  }
  