/**

  * Copyright 2005-2011 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.kew.actionitem;

 import java.util.Comparator;

 import org.kuali.rice.kew.actionrequest.ActionRequestValue;

 import org.kuali.rice.kew.api.action.ActionItemContract;

 import org.kuali.rice.kew.api.action.RecipientType;

 /**

  * Compares an action item to another action item.

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class ActionItemComparator implements Comparator {

         public int compare(Object object1, Object object2) throws ClassCastException {

                 ActionItemContract actionItem1 = (ActionItemContract)object1;

                 ActionItemContract actionItem2 = (ActionItemContract)object2;

                 int actionCodeValue = ActionRequestValue.compareActionCode(actionItem1.getActionRequestCd(), actionItem2.getActionRequestCd(), true);

                 if (actionCodeValue != 0) {

                         return actionCodeValue;

                 }

                 int recipientTypeValue = ActionRequestValue.compareRecipientType(getRecipientTypeCode(actionItem1), getRecipientTypeCode(actionItem2));

                 if (recipientTypeValue != 0) {

                         return recipientTypeValue;

                 }

                 return ActionRequestValue.compareDelegationType(actionItem1.getDelegationType(), actionItem2.getDelegationType());

         }

     private String getRecipientTypeCode(Object object) {

         ActionItemContract actionItem = (ActionItemContract)object;

         String recipientTypeCode = RecipientType.PRINCIPAL.getCode();

         if (actionItem.getRoleName() != null) {

             recipientTypeCode = RecipientType.ROLE.getCode();

         }

         if (actionItem.getGroupId() != null) {

             recipientTypeCode = RecipientType.GROUP.getCode();

         }

         return recipientTypeCode;

     }

 }