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.datanucleus.mixins;
  
  import java.io.IOException;
  
  import javax.jdo.PersistenceManagerFactory;
  import javax.jdo.metadata.TypeMetadata;
  
  import jakarta.inject.Inject;
  import jakarta.xml.bind.JAXBException;
  
  import org.datanucleus.enhancement.Persistable;
  
  import org.apache.causeway.applib.annotation.Action;
  import org.apache.causeway.applib.annotation.ActionLayout;
  import org.apache.causeway.applib.annotation.MemberSupport;
  import org.apache.causeway.applib.annotation.Publishing;
  import org.apache.causeway.applib.annotation.RestrictTo;
  import org.apache.causeway.applib.annotation.SemanticsOf;
  import org.apache.causeway.applib.layout.LayoutConstants;
  import org.apache.causeway.applib.value.Clob;
  import org.apache.causeway.commons.internal.base._Strings;
  import org.apache.causeway.persistence.jdo.applib.services.JdoSupportService;
  
  import lombok.RequiredArgsConstructor;
  
  /**
   * Provides the ability to download the JDO
   * <a href="http://www.datanucleus.org/products/datanucleus/jdo/metadata_xml.html">class metadata</a>
   * as XML.
   *
   * @since 2.0 {@index}
   */
  @Action(
          commandPublishing = Publishing.DISABLED,
          domainEvent = Persistable_downloadJdoMetadata.ActionDomainEvent.class,
          executionPublishing = Publishing.DISABLED,
          restrictTo = RestrictTo.PROTOTYPING,
          semantics = SemanticsOf.SAFE
  )
  @ActionLayout(
          cssClassFa = "fa-download",
          describedAs = "Downloads the DataNucleus metamodel for this class (as a Xxx.jdo file).  One use case is to tactically override annotation-based configuration of existing entities, eg to target specific databases",
          fieldSetId = LayoutConstants.FieldSetId.METADATA,
          position = ActionLayout.Position.PANEL_DROPDOWN,
          sequence = "710.1"
  )
  @RequiredArgsConstructor
  public class Persistable_downloadJdoMetadata {
  
      @Inject JdoSupportService jdoSupport;
  
      private final Persistable persistable;
  
      public static class ActionDomainEvent extends org.apache.causeway.applib.CausewayModuleApplib.ActionDomainEvent<Persistable_downloadJdoMetadata> {}
  
      @MemberSupport public Clob act(
              final String fileName) throws JAXBException, IOException {
  
          final Class<? extends Persistable> objClass = persistable.getClass();
          final String objClassName = objClass.getName();
  
          final TypeMetadata metadata = getPersistenceManagerFactory().getMetadata(objClassName);
          final String xml = metadata.toString();
  
          return new Clob(_Strings.asFileNameWithExtension(fileName, "jdo"), "text/xml", xml);
      }
  
      @MemberSupport public String default0Act() {
          return _Strings.asFileNameWithExtension(persistable.getClass().getName(), "jdo");
      }
  
      private PersistenceManagerFactory getPersistenceManagerFactory() {
          return jdoSupport.getPersistenceManager().getPersistenceManagerFactory();
      }
  
  }
  