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.io.OutputStream;
  import java.net.InetSocketAddress;
  import java.util.ArrayList;
  import java.util.Collections;
  
  import com.sun.net.httpserver.HttpServer;
  import org.apache.activemq.artemis.api.core.QueueConfiguration;
  import org.apache.activemq.artemis.api.core.client.ClientSession;
  import org.apache.activemq.artemis.component.WebServerComponent;
  import org.apache.activemq.artemis.core.config.ha.ReplicaPolicyConfiguration;
  import org.apache.activemq.artemis.core.config.ha.ReplicatedPolicyConfiguration;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.server.ServiceComponent;
  import org.apache.activemq.artemis.core.server.cluster.ha.ReplicatedPolicy;
  import org.apache.activemq.artemis.dto.AppDTO;
  import org.apache.activemq.artemis.dto.BindingDTO;
  import org.apache.activemq.artemis.dto.WebServerDTO;
  import org.apache.activemq.artemis.tests.extensions.TestMethodNameMatchExtension;
  import org.apache.activemq.artemis.tests.util.Wait;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  import org.junit.jupiter.api.extension.RegisterExtension;
  
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class ReplicatedFailoverTest extends FailoverTest {
  
     private static final String TEST_REPLICATED_FAILBACK = "testReplicatedFailback";
     private static final String TEST_LOOP = "testLoop";
  
     @RegisterExtension
     TestMethodNameMatchExtension isReplicatedFailbackTest = new TestMethodNameMatchExtension(TEST_REPLICATED_FAILBACK, TEST_LOOP);
  
     protected void beforeWaitForRemoteBackupSynchronization() {
     }
  
     private void waitForSync(ActiveMQServer server) throws Exception {
        Wait.waitFor(server::isReplicaSync);
     }
  
     @Test
     @Timeout(120)
     /*
     * default maxSavedReplicatedJournalsSize is 2, this means the backup will fall back to replicated only twice, after this
     * it is stopped permanently
     *
     * */ public void testReplicatedFailback() throws Exception {
        try {
           beforeWaitForRemoteBackupSynchronization();
  
           waitForSync(backupServer.getServer());
  
           createSessionFactory();
  
           ClientSession session = createSession(sf, true, true);
  
           session.createQueue(QueueConfiguration.of(ADDRESS));
  
           crash(session);
  
           ReplicatedPolicy haPolicy = (ReplicatedPolicy) primaryServer.getServer().getHAPolicy();
  
           haPolicy.setCheckForPrimaryServer(true);
  
           primaryServer.start();
  
           waitForSync(primaryServer.getServer());
  
           waitForSync(backupServer.getServer());
  
           waitForServerToStart(primaryServer.getServer());
  
           session = createSession(sf, true, true);
  
           crash(session);
  
           ReplicatedPolicyConfiguration replicatedPolicyConfiguration = (ReplicatedPolicyConfiguration) primaryServer.getServer().getConfiguration().getHAPolicyConfiguration();
  
           replicatedPolicyConfiguration.setCheckForActiveServer(true);
  
           primaryServer.start();
  
           waitForSync(primaryServer.getServer());
  
           waitForSync(backupServer.getServer());
  
           waitForServerToStart(primaryServer.getServer());
  
           session = createSession(sf, true, true);
  
           crash(session);
  
           replicatedPolicyConfiguration = (ReplicatedPolicyConfiguration) primaryServer.getServer().getConfiguration().getHAPolicyConfiguration();
  
           replicatedPolicyConfiguration.setCheckForActiveServer(true);
  
           primaryServer.start();
  
           waitForSync(primaryServer.getServer());
  
           waitForServerToStart(backupServer.getServer());
  
           assertTrue(backupServer.getServer().isStarted());
  
        } finally {
           if (sf != null) {
              sf.close();
           }
           try {
              backupServer.getServer().stop();
           } catch (Throwable ignored) {
           }
           try {
              primaryServer.getServer().stop();
           } catch (Throwable ignored) {
           }
        }
     }
  
     @Test
     public void testReplicatedFailbackBackupFromPrimaryBackToBackup() throws Exception {
  
        InetSocketAddress address = new InetSocketAddress("127.0.0.1", 8787);
        HttpServer httpServer = HttpServer.create(address, 100);
        httpServer.start();
  
        try {
           httpServer.createContext("/", t -> {
              String response = "<html><body><b>This is a unit test</b></body></html>";
              t.sendResponseHeaders(200, response.length());
              OutputStream os = t.getResponseBody();
              os.write(response.getBytes());
              os.close();
           });
           AppDTO appDTO = new AppDTO();
           appDTO.war = "console.war";
           appDTO.url = "console";
           BindingDTO bindingDTO = new BindingDTO();
           bindingDTO.uri = "http://localhost:0";
           bindingDTO.apps = new ArrayList<>();
           bindingDTO.apps.add(appDTO);
           WebServerDTO wdto = new WebServerDTO();
           wdto.setBindings(Collections.singletonList(bindingDTO));
           wdto.path = "console";
           WebServerComponent webServerComponent = new WebServerComponent();
           webServerComponent.configure(wdto, ".", ".");
           webServerComponent.start();
  
           backupServer.getServer().getNetworkHealthCheck().parseURIList("http://localhost:8787");
           assertTrue(backupServer.getServer().getNetworkHealthCheck().isStarted());
           backupServer.getServer().addExternalComponent(webServerComponent, false);
           // this is called when backup servers go from primary back to backup
           backupServer.getServer().fail(true);
           assertTrue(backupServer.getServer().getNetworkHealthCheck().isStarted());
           assertTrue(backupServer.getServer().getExternalComponents().get(0).isStarted());
           ((ServiceComponent) (backupServer.getServer().getExternalComponents().get(0))).stop(true);
        } finally {
           httpServer.stop(0);
        }
  
     }
  
     @Override
     protected void createConfigs() throws Exception {
        createReplicatedConfigs();
     }
  
     @Override
     protected void setupHAPolicyConfiguration() {
        if (isReplicatedFailbackTest.matches()) {
           ((ReplicatedPolicyConfiguration) primaryConfig.getHAPolicyConfiguration()).setCheckForActiveServer(true);
           ((ReplicaPolicyConfiguration) backupConfig.getHAPolicyConfiguration()).setMaxSavedReplicatedJournalsSize(2).setAllowFailBack(true);
           ((ReplicaPolicyConfiguration) backupConfig.getHAPolicyConfiguration()).setRestartBackup(false);
        } else {
           super.setupHAPolicyConfiguration();
        }
     }
  
     @Override
     protected void crash(boolean waitFailure, ClientSession... sessions) throws Exception {
        if (sessions.length > 0) {
           for (ClientSession session : sessions) {
              waitForRemoteBackup(session.getSessionFactory(), 5, true, backupServer.getServer());
           }
        } else {
           waitForRemoteBackup(null, 5, true, backupServer.getServer());
        }
        super.crash(waitFailure, sessions);
     }
  
     @Override
     protected void crash(ClientSession... sessions) throws Exception {
        if (sessions.length > 0) {
           for (ClientSession session : sessions) {
              waitForRemoteBackup(session.getSessionFactory(), 5, true, backupServer.getServer());
           }
        } else {
           waitForRemoteBackup(null, 5, true, backupServer.getServer());
        }
        super.crash(sessions);
     }
  }
  