content: /*
   * Copyright 2017-2025 Hyland Software, Inc. and its affiliates.
   *
   * Licensed 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.activiti.cloud.alfresco.converter.json;
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  import java.io.IOException;
  import java.lang.reflect.Type;
  import java.util.Collections;
  import org.activiti.cloud.alfresco.rest.model.EntryResponseContent;
  import org.springframework.hateoas.CollectionModel;
  import org.springframework.hateoas.EntityModel;
  import org.springframework.hateoas.PagedModel;
  import org.springframework.http.HttpOutputMessage;
  import org.springframework.http.MediaType;
  import org.springframework.http.converter.HttpMessageNotWritableException;
  import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
  import org.springframework.http.converter.json.MappingJacksonValue;
  import org.springframework.lang.Nullable;
  
  public class AlfrescoJackson2HttpMessageConverter<T> extends MappingJackson2HttpMessageConverter {
  
      private final PagedModelConverter pagedCollectionModelConverter;
      private final ObjectMapper objectMapper;
  
      public AlfrescoJackson2HttpMessageConverter(
          PagedModelConverter pagedCollectionModelConverter,
          ObjectMapper objectMapper
      ) {
          super(objectMapper);
          this.pagedCollectionModelConverter = pagedCollectionModelConverter;
          this.objectMapper = objectMapper;
          setSupportedMediaTypes(Collections.singletonList(MediaType.APPLICATION_JSON));
      }
  
      @Override
      protected void writeInternal(Object object, @Nullable Type type, HttpOutputMessage outputMessage)
          throws IOException, HttpMessageNotWritableException {
          if (object instanceof MappingJacksonValue) {
              MappingJacksonValue mappingJacksonValueObject = ((MappingJacksonValue) object);
              mappingJacksonValueObject.setValue(transformObject(mappingJacksonValueObject.getValue()));
              defaultWriteInternal(mappingJacksonValueObject, type, outputMessage);
          } else {
              defaultWriteInternal(transformObject(object), type, outputMessage);
          }
      }
  
      private Object transformObject(Object object) {
          if (object instanceof PagedModel) {
              return pagedCollectionModelConverter.pagedCollectionModelToListResponseContent(
                  (PagedModel<EntityModel<T>>) object
              );
          } else if (object instanceof CollectionModel) {
              return pagedCollectionModelConverter.resourcesToListResponseContent(
                  (CollectionModel<EntityModel<T>>) object
              );
          } else if (object instanceof EntityModel) {
              return new EntryResponseContent<>(((EntityModel<T>) object).getContent());
          }
          return object;
      }
  
      protected void defaultWriteInternal(Object object, @Nullable Type type, HttpOutputMessage outputMessage)
          throws IOException {
          super.writeInternal(object, type, outputMessage);
      }
  
      @Override
      public boolean canWrite(Type type, Class<?> clazz, MediaType mediaType) {
          return !String.class.equals(type) && super.canWrite(type, clazz, mediaType);
      }
  }
  