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.viewer.restfulobjects.jaxrsresteasy.conneg;
  
  import java.lang.annotation.Annotation;
  import java.lang.reflect.Type;
  
  import jakarta.inject.Inject;
  import jakarta.ws.rs.Produces;
  import jakarta.ws.rs.core.MediaType;
  import jakarta.ws.rs.ext.Provider;
  import jakarta.xml.bind.Marshaller;
  
  import org.jboss.resteasy.plugins.providers.jaxb.JAXBXmlRootElementProvider;
  
  import org.springframework.stereotype.Component;
  
  import org.apache.causeway.applib.jaxb.PersistentEntityAdapter;
  import org.apache.causeway.applib.services.inject.ServiceInjector;
  
  /**
   * @since 1.x {@index}
   */
  @Component
  @Provider
  @Produces({"application/xml", "application/*+xml", "text/*+xml"})
  public class RestfulObjectsJaxbWriterForXml extends JAXBXmlRootElementProvider {
  
      @Inject private ServiceInjector serviceInjector;
  
      @Override
      protected boolean isReadWritable(
              final Class<?> type,
              final Type genericType,
              final Annotation[] annotations,
              final MediaType mediaType) {
  
          return super.isReadWritable(type, genericType, annotations, mediaType) &&
                  hasXRoDomainTypeParameter(mediaType);
      }
  
      @Override
      protected Marshaller getMarshaller(
              final Class<?> type,
              final Annotation[] annotations,
              final MediaType mediaType) {
  
          var adapter = serviceInjector.injectServicesInto(new PersistentEntityAdapter());
  
          var marshaller = super.getMarshaller(type, annotations, mediaType);
          marshaller.setAdapter(PersistentEntityAdapter.class, adapter);
          return marshaller;
      }
  
      // HELPER
  
      private static boolean hasXRoDomainTypeParameter(final MediaType mediaType) {
          final boolean retval = mediaType.getParameters().containsKey("x-ro-domain-type");
          return retval;
      }
  
  }
  