/*
    * Copyright 2007 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 1.0 (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/ecl1.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.student.enrollment.class2.courseoffering.keyvalue;
  
  import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
  import org.kuali.rice.core.api.util.ConcreteKeyValue;
  import org.kuali.rice.core.api.util.KeyValue;
  import org.kuali.rice.krad.keyvalues.KeyValuesBase;
  import org.kuali.student.r2.common.exceptions.DoesNotExistException;
  import org.kuali.student.r2.common.util.ContextUtils;
  import org.kuali.student.r2.core.enumerationmanagement.dto.EnumeratedValueInfo;
  import org.kuali.student.r2.core.enumerationmanagement.service.EnumerationManagementService;
  
  import javax.xml.namespace.QName;
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.List;
  
  /**
   * @deprecated This class is leftover from Core Slice. Delete when no longer needed or un deprecate if needed.
   */
  @Deprecated
  public class SubjectAreaKeyValues extends KeyValuesBase implements Serializable {
  
      private static final long serialVersionUID = 1L;
      
      private static final String SUBJECT_AREA_ENUM_KEY = "kuali.lu.subjectArea";
      
      private transient EnumerationManagementService enumService;
      private transient SubjectAreasComparator subjectAreasComparator = new SubjectAreasComparator();
  
      @Override
      public List<KeyValue> getKeyValues() {
          
          List<EnumeratedValueInfo> subjectAreas;
          
          try {
              subjectAreas = getEnumService().getEnumeratedValues(SUBJECT_AREA_ENUM_KEY, null, null, null, ContextUtils.createDefaultContextInfo());
              Collections.sort(subjectAreas, subjectAreasComparator);
          } catch (DoesNotExistException e) {
              throw new RuntimeException("No subject areas found! There should be some in the database", e);
          } catch (Exception e) {
              throw new RuntimeException("Error looking up subject areas", e);
          }
          
          List<KeyValue> keyValues = new ArrayList<KeyValue>();
          
          for(EnumeratedValueInfo e : subjectAreas) {
              keyValues.add(new ConcreteKeyValue(e.getCode(), e.getValue()));
          }
          
          return keyValues;
      }
      
      protected EnumerationManagementService getEnumService() {
          if(enumService == null) {
              enumService = (EnumerationManagementService)GlobalResourceLoader.getService(new QName("http://student.kuali.org/wsdl/enumerationmanagement","EnumerationManagementService"));
          }
          return this.enumService;
      }
  
      private static class SubjectAreasComparator implements Comparator {
  
          @Override
          public int compare(Object o1, Object o2) {
              if (!(o1 instanceof EnumeratedValueInfo) || !(o2 instanceof EnumeratedValueInfo)) {
                  throw new ClassCastException("Object not of type EnumeratedValueInfo.");
              }
              EnumeratedValueInfo enumeratedValue1 = (EnumeratedValueInfo) o1;
              EnumeratedValueInfo enumeratedValue2 = (EnumeratedValueInfo) o2;
  
              int result = enumeratedValue1.getValue().compareToIgnoreCase(enumeratedValue2.getValue());
              return result;
          }
      }
  
  }