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.viewer.resources.serialization;
  
  import java.util.Collection;
  
  import jakarta.ws.rs.core.MediaType;
  
  import org.apache.causeway.commons.io.JsonUtils;
  import org.apache.causeway.viewer.restfulobjects.applib.RepresentationType;
  
  public enum SerializationStrategy {
  
      XML {
          @Override public Object entity(final Object jaxbAnnotatedObject) {
              return jaxbAnnotatedObject;
          }
  
      },
  
      JSON {
          @Override public Object entity(final Object jaxbAnnotatedObject) {
              return JsonUtils.toStringUtf8(
                      jaxbAnnotatedObject,
                      JsonUtils::jaxbAnnotationSupport);
          }
  
      },
  
      JSON_INDENTED {
          @Override public Object entity(final Object jaxbAnnotatedObject) {
              return JsonUtils.toStringUtf8(
                      jaxbAnnotatedObject,
                      JsonUtils::jaxbAnnotationSupport,
                      JsonUtils::indentedOutput);
          }
  
      },
  
      ;
  
      public abstract Object entity(final Object jaxbAnnotatedObject);
  
      public MediaType type(final RepresentationType representationType) {
          return representationType.getXmlMediaType();
      }
  
      public static SerializationStrategy determineFrom(final Collection<MediaType> acceptableMediaTypes) {
  
          for (MediaType acceptableMediaType : acceptableMediaTypes) {
              if(acceptableMediaType.isCompatible(MediaType.APPLICATION_JSON_TYPE)) {
                  return SerializationStrategy.JSON;
              }
              if(acceptableMediaType.isCompatible(MediaType.APPLICATION_XML_TYPE)) {
                  return SerializationStrategy.XML;
              }
          }
          return SerializationStrategy.JSON;
      }
  
  }
  