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.causeway.persistence.jdo.metamodel.facets.object.persistencecapable;
  
  import javax.jdo.annotations.EmbeddedOnly;
  import javax.jdo.annotations.PersistenceCapable;
  
  import jakarta.inject.Inject;
  import jakarta.persistence.Entity;
  import jakarta.persistence.Table;
  
  import org.apache.causeway.core.metamodel.context.MetaModelContext;
  import org.apache.causeway.core.metamodel.facetapi.FacetUtil;
  import org.apache.causeway.core.metamodel.facetapi.FeatureType;
  import org.apache.causeway.core.metamodel.facets.FacetFactoryAbstract;
  import org.apache.causeway.core.metamodel.facets.ObjectTypeFacetFactory;
  import org.apache.causeway.core.metamodel.facets.object.domainobject.DomainObjectAnnotationFacetFactory;
  import org.apache.causeway.persistence.jdo.provider.entities.JdoFacetContext;
  
  /**
   * Implements {@link ObjectTypeFacetFactory} only because is a prereq of {@link DomainObjectAnnotationFacetFactory}.
   */
  public class JdoPersistenceCapableFacetFactory
  extends FacetFactoryAbstract
  implements ObjectTypeFacetFactory {
  
      private final JdoFacetContext jdoFacetContext;
  
      @Inject
      public JdoPersistenceCapableFacetFactory(
              final MetaModelContext mmc,
              final JdoFacetContext jdoFacetContext) {
          super(mmc, FeatureType.OBJECTS_ONLY);
          this.jdoFacetContext = jdoFacetContext;
      }
  
      @Override
      public void process(final ObjectTypeFacetFactory.ProcessObjectTypeContext processClassContext) {
  
          var cls = processClassContext.getCls();
  
          // only applies to JDO entities; ignore non enhanced classes
          if(!jdoFacetContext.isPersistenceEnhanced(cls)) {
              return;
          }
  
          if(!processJdoAnnotations(processClassContext)) {
              processJpaAnnotations(processClassContext);
          }
      }
  
      // -- HELPER
  
      private boolean processJdoAnnotations(final ProcessObjectTypeContext processClassContext) {
          var cls = processClassContext.getCls();
  
          var persistenceCapableIfAny = processClassContext.synthesizeOnType(PersistenceCapable.class);
          if (!persistenceCapableIfAny.isPresent()) {
              return false;
          }
  
          var embeddedOnlyIfAny = processClassContext.synthesizeOnType(EmbeddedOnly.class);
          var facetHolder = processClassContext.getFacetHolder();
  
          return FacetUtil.addFacetIfPresent(
                  JdoPersistenceCapableFacetFromAnnotation
                  .createUsingJdo(persistenceCapableIfAny, embeddedOnlyIfAny, cls, facetHolder))
          .map(jdoPersistenceCapableFacet->{
  
              FacetUtil.addFacet(
                      jdoFacetContext.createEntityFacet(facetHolder, cls));
  
              return true; // jdoPersistenceCapableFacet was created
          })
          .orElse(false);
      }
  
      private void processJpaAnnotations(final ProcessObjectTypeContext processClassContext) {
          var entityIfAny = processClassContext.synthesizeOnType(Entity.class);
          if(!entityIfAny.isPresent()) {
              return;
          }
  
          var cls = processClassContext.getCls();
          var facetHolder = processClassContext.getFacetHolder();
  
          //var embeddedOnlyIfAny = processClassContext.synthesizeOnType(Embeddable.class);
          var tableIfAny = processClassContext.synthesizeOnType(Table.class);
  
          FacetUtil.addFacetIfPresent(
                  JdoPersistenceCapableFacetFromAnnotation
                  .createUsingJpa(entityIfAny, tableIfAny, cls, facetHolder))
          .ifPresent(jdoPersistenceCapableFacet->{
  
              FacetUtil.addFacet(
                      jdoFacetContext.createEntityFacet(facetHolder, cls));
  
          });
      }
  
  }
  