/**
    * Copyright 2012 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.osedu.org/licenses/ECL-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.
   *
   * Created by chongzhu on 11/27/12
   */
  package org.kuali.student.enrollment.class1.state.impl;
  
  import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
  import org.kuali.student.enrollment.courseoffering.dto.FormatOfferingInfo;
  import org.kuali.student.enrollment.courseoffering.service.CourseOfferingService;
  import org.kuali.student.r2.common.dto.ContextInfo;
  import org.kuali.student.r2.common.dto.StatusInfo;
  import org.kuali.student.r2.common.exceptions.DoesNotExistException;
  import org.kuali.student.r2.common.exceptions.InvalidParameterException;
  import org.kuali.student.r2.common.exceptions.MissingParameterException;
  import org.kuali.student.r2.common.exceptions.OperationFailedException;
  import org.kuali.student.r2.common.exceptions.PermissionDeniedException;
  import org.kuali.student.r2.common.util.constants.CourseOfferingServiceConstants;
  import org.kuali.student.r2.core.class1.state.service.StateHelper;
  
  import javax.xml.namespace.QName;
  
  /**
   *  * @Version 2.0
   *
   * @author Kuali Student Team
   */
  public class FOStateHelperImpl implements StateHelper {
      CourseOfferingService courseOfferingService;
      public FOStateHelperImpl() {
      }
  
      protected CourseOfferingService getCourseOfferingService(){
          if (courseOfferingService == null){
              courseOfferingService = (CourseOfferingService) GlobalResourceLoader.getService(new QName(CourseOfferingServiceConstants.NAMESPACE, CourseOfferingServiceConstants.SERVICE_NAME_LOCAL_PART));
          }
          return  courseOfferingService;
      }
  
      @Override
      public StatusInfo updateState(String id, String nextStateKey, ContextInfo contextInfo) {
          StatusInfo si = null;
          try {
              si = getCourseOfferingService().changeFormatOfferingState(id, nextStateKey, contextInfo);
              si.setSuccess(true);
          } catch (Exception e) {
              si.setSuccess(false);
          }
          return si;
      }
  
      @Override
      public String getStateKey(String entityId, ContextInfo context) throws InvalidParameterException, MissingParameterException, DoesNotExistException, OperationFailedException, PermissionDeniedException {
          FormatOfferingInfo fo = getCourseOfferingService().getFormatOffering(entityId, context);
          return fo.getStateKey();
      }
  }