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.ambari.server.orm.dao;
  
  
  import java.util.List;
  import java.util.TreeMap;
  
  import jakarta.persistence.EntityManager;
  import jakarta.persistence.NoResultException;
  import jakarta.persistence.TypedQuery;
  
  import org.apache.ambari.server.orm.RequiresSession;
  import org.apache.ambari.server.orm.entities.ArtifactEntity;
  
  import com.google.inject.Inject;
  import com.google.inject.Provider;
  import com.google.inject.Singleton;
  import com.google.inject.persist.Transactional;
  
  
  /**
   * Cluster Artifact Data Access Object.
   */
  @Singleton
  public class ArtifactDAO {
    /**
     * JPA entity manager
     */
    @Inject
    Provider<EntityManager> entityManagerProvider;
  
    /**
     * Find an artifact with the given name and foreign keys.
     *
     * @param artifactName name of artifact to find
     * @param foreignKeys  foreign keys of artifact as json representation of
     *                     a map of key properties to values
     *
     * @return  a matching artifact or null
     */
    @RequiresSession
    public ArtifactEntity findByNameAndForeignKeys(String artifactName, TreeMap<String, String> foreignKeys) {
      //todo: need to update PK in DB
      TypedQuery<ArtifactEntity> query = entityManagerProvider.get()
          .createNamedQuery("artifactByNameAndForeignKeys", ArtifactEntity.class);
      query.setParameter("artifactName", artifactName);
      query.setParameter("foreignKeys", ArtifactEntity.serializeForeignKeys(foreignKeys));
  
      try {
        return query.getSingleResult();
      } catch (NoResultException ignored) {
        return null;
      }
    }
  
    /**
     * Find all artifacts for the specified foreign keys.
     *
     * @param foreignKeys  foreign keys of artifact as json representation of
     *                     a map of key properties to values
     *
     * @return all artifacts for the specified foreign keys or an empty List
     */
    @RequiresSession
    public List<ArtifactEntity> findByForeignKeys(TreeMap<String, String> foreignKeys) {
      TypedQuery<ArtifactEntity> query = entityManagerProvider.get().
          createNamedQuery("artifactByForeignKeys", ArtifactEntity.class);
      query.setParameter("foreignKeys", ArtifactEntity.serializeForeignKeys(foreignKeys));
  
      return query.getResultList();
    }
  
    /**
     * Find all artifacts for the specified artifact name.
     *
     * @param artifactName name of artifact to find
     * @return all artifacts with the specified artifact name or an empty List
     */
    @RequiresSession
    public List<ArtifactEntity> findByName(String artifactName) {
      TypedQuery<ArtifactEntity> query = entityManagerProvider.get().
          createNamedQuery("artifactByName", ArtifactEntity.class);
      query.setParameter("artifactName", artifactName);
  
      return query.getResultList();
    }
  
    /**
     * Refresh the state of the instance from the database,
     * overwriting changes made to the entity, if any.
     *
     * @param entity  entity to refresh
     */
    @Transactional
    public void refresh(ArtifactEntity entity) {
      entityManagerProvider.get().refresh(entity);
    }
  
    /**
     * Make an instance managed and persistent.
     *
     * @param entity  entity to persist
     */
    @Transactional
    public void create(ArtifactEntity entity) {
      entityManagerProvider.get().persist(entity);
    }
  
    /**
     * Merge the state of the given entity into the current persistence context.
     *
     * @param artifactEntity  entity to merge
     * @return the merged entity
     */
    @Transactional
    public ArtifactEntity merge(ArtifactEntity artifactEntity) {
      return entityManagerProvider.get().merge(artifactEntity);
    }
  
    /**
     * Remove the entity instance.
     *
     * @param artifactEntity  entity to remove
     */
    @Transactional
    public void remove(ArtifactEntity artifactEntity) {
      entityManagerProvider.get().remove(merge(artifactEntity));
    }
  }
  