/**
    * Copyright 2005-2015 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.krad.maintenance;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.criteria.QueryByCriteria;
  import org.kuali.rice.krad.uif.util.ObjectPropertyUtils;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Default implementation of {@link BulkUpdateMaintainable}.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class BulkUpdateMaintainableImpl extends MaintainableImpl implements BulkUpdateMaintainable {
      private static final long serialVersionUID = 6656390440709425848L;
  
      /**
       * The bulk update maintenance document including the data objects to be updated by this bulk update maintenance
       * document needs to be persistable.
       *
       * @see BulkUpdateMaintainable#isPersistable
       */
      @Override
      public boolean isPersistable() {
          if (StringUtils.isBlank(getDocumentNumber())) {
              return false;
          }
  
          BulkUpdateMaintenanceDataObject dataObject = (BulkUpdateMaintenanceDataObject) getDataObject();
          List<?> targetUpdateDataObjects = dataObject.getTargetUpdateDataObjects();
  
          for (Object targetUpdateDataObject : targetUpdateDataObjects) {
              if (!getLegacyDataAdapter().hasPrimaryKeyFieldValues(targetUpdateDataObject)) {
                  return false;
              }
          }
  
          return true;
      }
  
      /**
       * @see BulkUpdateMaintainable#generateUpdatableObjects()
       */
      @Override
      public List<Object> generateUpdatableObjects() {
          List<Object> updatableObjects = new ArrayList<Object>();
  
          BulkUpdateMaintenanceDataObject bulkUpdateMaintenanceDataObject = (BulkUpdateMaintenanceDataObject) getDataObject();
          List<?> targetUpdateDataObjects = bulkUpdateMaintenanceDataObject.getTargetUpdateDataObjects();
  
          for (Object targetUpdateDataObject : targetUpdateDataObjects) {
              Map<String, Object> primaryKeys = getDataObjectService().wrap(targetUpdateDataObject).getPrimaryKeyValues();
              Object updatableObject = getDataObjectService().findUnique(targetUpdateDataObject.getClass(),
                      QueryByCriteria.Builder.andAttributes(primaryKeys).build());
  
              for (Map.Entry<String, ?> updateFieldValue : bulkUpdateMaintenanceDataObject.getUpdateFieldValues().entrySet()) {
                  String propertyName = updateFieldValue.getKey();
                  Object propertyValue = updateFieldValue.getValue();
  
                  if (ObjectPropertyUtils.isWritableProperty(updatableObject, propertyName)) {
                      ObjectPropertyUtils.setPropertyValue(updatableObject, propertyName, propertyValue);
                      updatableObjects.add(updatableObject);
                  }
              }
          }
  
          return updatableObjects;
      }
  
      /**
       * @see Maintainable#generateMaintenanceLocks()
       */
      @Override
      public List<MaintenanceLock> generateMaintenanceLocks() {
          List<MaintenanceLock> maintenanceLocks = super.generateMaintenanceLocks();
  
          BulkUpdateMaintenanceDataObject dataObject = (BulkUpdateMaintenanceDataObject) getDataObject();
  
          for (Object targetUpdateDataObjects : dataObject.getTargetUpdateDataObjects()) {
              String documentTypeName = getDocumentDictionaryService().getMaintenanceDocumentTypeName(targetUpdateDataObjects.getClass());
              maintenanceLocks.addAll(generateMaintenanceLocks(getDocumentNumber(), documentTypeName, targetUpdateDataObjects.getClass(), targetUpdateDataObjects));
          }
 
         return maintenanceLocks;
     }
 
     /**
      * @see Maintainable#saveDataObject()
      */
     @Override
     public void saveDataObject() {
         for (Object updateableObject : generateUpdatableObjects()) {
             getLegacyDataAdapter().linkAndSave(updateableObject);
         }
     }
 
 }