/*
    * Copyright 2006-2009 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.ole.sys.service.impl;
  
  import org.kuali.ole.select.document.service.OleSelectDocumentService;
  import org.kuali.ole.sys.OLEConstants;
  import org.kuali.ole.sys.context.SpringContext;
  import org.kuali.rice.kew.api.exception.WorkflowException;
  import org.kuali.rice.krad.UserSession;
  import org.kuali.rice.krad.util.GlobalVariables;
  import org.springframework.transaction.annotation.Transactional;
  
  @Transactional
  public class PostProcessorServiceImpl extends org.kuali.rice.krad.service.impl.PostProcessorServiceImpl {
  
      /**
       * Overrides the baseline method so that the KFS document postprocessor uses
       * the "kfs" user instead of the "kr" user.
       * 
       * @see org.kuali.rice.krad.service.impl.PostProcessorServiceImpl#establishPostProcessorUserSession()
       */
  
      private OleSelectDocumentService oleSelectDocumentService;
  
      @Override
      protected UserSession establishPostProcessorUserSession() throws WorkflowException {
          if (GlobalVariables.getUserSession() == null) {
              return new UserSession(getOleSelectDocumentService().getSelectParameterValue(OLEConstants.SYSTEM_USER));
          } else {
              return GlobalVariables.getUserSession();
          }
      }
  
      public OleSelectDocumentService getOleSelectDocumentService() {
          if(oleSelectDocumentService == null){
              oleSelectDocumentService = SpringContext.getBean(OleSelectDocumentService.class);
          }
          return oleSelectDocumentService;
      }
  
      public void setOleSelectDocumentService(OleSelectDocumentService oleSelectDocumentService) {
          this.oleSelectDocumentService = oleSelectDocumentService;
      }
  }