/*
    * Copyright 2007-2009 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.kns.service.impl;
  
  import java.util.List;
  
  import org.kuali.rice.kns.bo.BusinessObject;
  import org.kuali.rice.kns.datadictionary.MaintainableSectionDefinition;
  import org.kuali.rice.kns.datadictionary.MaintenanceDocumentEntry;
  import org.kuali.rice.kns.service.BusinessObjectSerializerService;
  import org.kuali.rice.kns.service.KNSServiceLocator;
  import org.kuali.rice.kns.service.MaintenanceDocumentDictionaryService;
  import org.kuali.rice.kns.util.documentserializer.AlwaysTruePropertySerializibilityEvaluator;
  import org.kuali.rice.kns.util.documentserializer.MaintenanceDocumentPropertySerializibilityEvaluator;
  import org.kuali.rice.kns.util.documentserializer.PropertySerializabilityEvaluator;
  import org.kuali.rice.kns.util.documentserializer.SerializationState;
  
  public class BusinessObjectSerializerServiceImpl extends SerializerServiceBase implements BusinessObjectSerializerService {
  
      /**
       * Serializes a document for routing
       * 
       * @see org.kuali.rice.kns.service.DocumentSerializerService#serializeDocumentToXml(org.kuali.rice.kns.document.Document)
       */
      public String serializeBusinessObjectToXml(BusinessObject businessObject) {
          PropertySerializabilityEvaluator propertySerizabilityEvaluator = getPropertySerizabilityEvaluator(businessObject);
          evaluators.set(propertySerizabilityEvaluator);
          SerializationState state = new SerializationState(); //createNewDocumentSerializationState(document);
          serializationStates.set(state);
          
          //Object xmlWrapper = null;//wrapDocumentWithMetadata(document);
          String xml;
          if (propertySerizabilityEvaluator instanceof AlwaysTruePropertySerializibilityEvaluator) {
              xml = getXmlObjectSerializerService().toXml(businessObject);
          }
          else {
              xml = xstream.toXML(businessObject);
          }
          
          evaluators.set(null);
          serializationStates.set(null);
          return xml;
      }
  
      public PropertySerializabilityEvaluator getPropertySerizabilityEvaluator(BusinessObject businessObject) {
          MaintenanceDocumentDictionaryService maintenanceDocumentDictionaryService = 
          	KNSServiceLocator.getMaintenanceDocumentDictionaryService();
          String docTypeName = maintenanceDocumentDictionaryService.getDocumentTypeName(businessObject.getClass());
          MaintenanceDocumentEntry maintenanceDocumentEntry = maintenanceDocumentDictionaryService.getMaintenanceDocumentEntry(docTypeName);
          List<MaintainableSectionDefinition> maintainableSectionDefinitions = maintenanceDocumentEntry.getMaintainableSections();
          if (maintainableSectionDefinitions == null) {
              return new AlwaysTruePropertySerializibilityEvaluator();
          }
          else {
              PropertySerializabilityEvaluator evaluator = new MaintenanceDocumentPropertySerializibilityEvaluator();
              evaluator.initializeEvaluator(businessObject);
              return evaluator;
          }
      }
  }