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   * Licensed to the Apache Software Foundation (ASF) under one
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   * 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
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   * <p/>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p/>
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
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   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.ambari.server.testing;
  
  import java.util.Collection;
  import java.util.List;
  
  import jakarta.persistence.EntityManager;
  import jakarta.persistence.EntityTransaction;
  
  import org.apache.ambari.server.controller.internal.DeleteHostComponentStatusMetaData;
  import org.apache.ambari.server.mpack.MpackManagerFactory;
  import org.apache.ambari.server.orm.GuiceJpaInitializer;
  import org.apache.ambari.server.orm.InMemoryDefaultTestModule;
  import org.apache.ambari.server.orm.OrmTestHelper;
  import org.apache.ambari.server.orm.dao.ClusterDAO;
  import org.apache.ambari.server.orm.dao.HostComponentDesiredStateDAO;
  import org.apache.ambari.server.orm.dao.ServiceComponentDesiredStateDAO;
  import org.apache.ambari.server.orm.entities.ClusterEntity;
  import org.apache.ambari.server.orm.entities.HostComponentDesiredStateEntity;
  import org.apache.ambari.server.orm.entities.ServiceComponentDesiredStateEntity;
  import org.apache.ambari.server.state.Cluster;
  import org.apache.ambari.server.state.Clusters;
  import org.apache.ambari.server.state.ServiceComponent;
  import org.apache.ambari.server.state.ServiceComponentFactory;
  import org.apache.ambari.server.state.ServiceComponentHost;
  import org.apache.ambari.server.state.ServiceComponentHostFactory;
  import org.apache.ambari.server.state.ServiceFactory;
  import org.apache.ambari.server.state.State;
  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;
  
  import com.google.inject.Guice;
  import com.google.inject.Inject;
  import com.google.inject.Injector;
  import com.google.inject.persist.PersistService;
  
  public class DBInconsistencyTests {
  
    private static final Logger LOG = LoggerFactory.getLogger(DBInconsistencyTests.class);
  
    @Inject
    private Injector injector;
    @Inject
    private OrmTestHelper helper;
    @Inject
    private Clusters clusters;
    @Inject
    private ServiceFactory serviceFactory;
    @Inject
    private ServiceComponentFactory serviceComponentFactory;
    @Inject
    private MpackManagerFactory mpackManagerFactory;
    @Inject
    private ServiceComponentHostFactory serviceComponentHostFactory;
    @Inject
    private HostComponentDesiredStateDAO hostComponentDesiredStateDAO;
    @Inject
    private ServiceComponentDesiredStateDAO serviceComponentDesiredStateDAO;
    @Inject
    private ClusterDAO clusterDAO;
  
    @Before
    public void setup() throws Exception {
      injector = Guice.createInjector(new InMemoryDefaultTestModule());
      injector.getInstance(GuiceJpaInitializer.class);
      injector.injectMembers(this);
    }
  
    @After
    public void teardown() {
      injector.getInstance(PersistService.class).stop();
    }
  
    @Test
    public void testOrphanedSCHDesiredEntityReAdd() throws Exception {
      Long clusterId = helper.createCluster();
      Assert.assertNotNull(clusterId);
  
      Cluster cluster = clusters.getCluster(OrmTestHelper.CLUSTER_NAME);
      Assert.assertNotNull(cluster);
  
      helper.addHost(clusters, cluster, "h1");
  
      helper.initializeClusterWithStack(cluster);
  
      helper.installHdfsService(cluster, serviceFactory,
        serviceComponentFactory, serviceComponentHostFactory, "h1");
  
      Collection<ServiceComponentHost> schList = clusters.getCluster(
        OrmTestHelper.CLUSTER_NAME).getServiceComponentHosts("HDFS", "DATANODE");
      Assert.assertNotNull(schList);
  
      Collection<ServiceComponent> scList = cluster.getService("HDFS").getServiceComponents().values();
      Assert.assertNotNull(schList);
  
      cluster.deleteService("HDFS", new DeleteHostComponentStatusMetaData());
  
      List<HostComponentDesiredStateEntity> hostComponentDesiredStateEntities =
        hostComponentDesiredStateDAO.findAll();
      Assert.assertTrue(hostComponentDesiredStateEntities == null ||
        hostComponentDesiredStateEntities.isEmpty());
  
      List<ServiceComponentDesiredStateEntity> serviceComponentDesiredStateEntities =
        serviceComponentDesiredStateDAO.findAll();
      Assert.assertTrue(serviceComponentDesiredStateEntities == null ||
        serviceComponentDesiredStateEntities.isEmpty());
  
      EntityManager em = helper.getEntityManager();
      final EntityTransaction txn = em.getTransaction();
  
      txn.begin();
  
      for (ServiceComponentHost sch : schList) {
        sch.setDesiredState(State.DISABLED);
      }
  
      for (ServiceComponent sc : scList) {
        sc.setDesiredState(State.DISABLED);
      }
  
      txn.commit();
  
      hostComponentDesiredStateEntities = hostComponentDesiredStateDAO.findAll();
      Assert.assertTrue(hostComponentDesiredStateEntities == null || hostComponentDesiredStateEntities.isEmpty());
  
      serviceComponentDesiredStateEntities = serviceComponentDesiredStateDAO.findAll();
      Assert.assertTrue(serviceComponentDesiredStateEntities == null ||
        serviceComponentDesiredStateEntities.isEmpty());
    }
  
    @Ignore // This non-functional in terms of actual code path
    @Test
    public void testRefreshInSameTxn() throws Exception {
      Long clusterId = helper.createCluster();
      Assert.assertNotNull(clusterId);
  
      Cluster cluster = clusters.getCluster(OrmTestHelper.CLUSTER_NAME);
      Assert.assertNotNull(cluster);
  
      EntityManager em = helper.getEntityManager();
      final EntityTransaction txn = em.getTransaction();
  
      txn.begin();
  
      ClusterEntity entity = clusterDAO.findById(clusterId);
      entity.setProvisioningState(State.DISABLED);
      clusterDAO.merge(entity);
  
      Assert.assertEquals(State.DISABLED, entity.getProvisioningState());
  
      entity = clusterDAO.findById(clusterId);
  
      Assert.assertEquals(State.DISABLED, entity.getProvisioningState());
  
      entity.setProvisioningState(State.INIT);
  
      txn.commit();
  
      entity = clusterDAO.findById(clusterId);
  
      Assert.assertEquals(State.INIT, entity.getProvisioningState());
    }
  }
  