/*

  * Copyright 2007-2008 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.util;

 import java.util.Map;

 /**

  * Inquiry screens and maintenance documents may render a collection of BOs on a screen.  These

  * BOs may implement {@link org.kuali.rice.krad.bo.Inactivatable}, which means that the BO has an active

  * flag of true or false.  Some screens may give the user the ability to not render (i.e. hide) inactive

  * collection elements.  This class has several utilities to control that behavior. 

  * 

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

  */

 public final class InactiveRecordsHidingUtils {

         private InactiveRecordsHidingUtils() {

                 throw new UnsupportedOperationException("do not call");

         }

     /**

      * Returns whether a collection has been set to show inactive records.  Note that if a collection has not been set to show inactive inactive records, then

      * this method will return false.

      * 

      * @param inactiveRecordDisplay a Map used to keep state between invocations of this method and {@link #setShowInactiveRecords(Map, String, boolean)}

      * @param collectionName the name of the collection 

      * @return

      */

     public static boolean getShowInactiveRecords(Map<String, Boolean> inactiveRecordDisplay, String collectionName) {

         // by default, show the actives

         boolean showInactive = true;

         if (collectionName == null) {

             throw new IllegalArgumentException("collection name cannot be null");

         }

         // remove periods from the collection name due to parsing limitation in Apache beanutils 

         collectionName = collectionName.replace( '.', '_' );

         if (inactiveRecordDisplay.containsKey(collectionName)) {

             Object inactiveSetting = inactiveRecordDisplay.get(collectionName);

             // warren: i copied this code from somewhere else, and have no idea why they're testing to see whether it's a

             // Boolean, but I'm guessing that it has to do w/ the PojoFormBase not setting things correctly

             if (inactiveSetting instanceof Boolean) {

                 showInactive = ((Boolean) inactiveSetting).booleanValue();

             }

             else {

                 showInactive = Boolean.parseBoolean(((String[]) inactiveSetting)[0]);

             }

         }

         return showInactive;

     }

     /**

      * Sets whether a method should show inactive records

      * 

      * @param inactiveRecordDisplay a Map used to keep state between invocations of this method and {@link #getShowInactiveRecords(Map, String)}

      * @param collectionName the name of the collection

      * @param showInactive whether to show inactive records

      */

     public static void setShowInactiveRecords(Map<String, Boolean> inactiveRecordDisplay, String collectionName, boolean showInactive) {

         if (collectionName == null) {

             throw new IllegalArgumentException("collection name cannot be null");

         }

         // remove periods from the collection name due to parsing limitation in Apache beanutils 

         collectionName = collectionName.replace( '.', '_' );

         inactiveRecordDisplay.put(collectionName, new Boolean(showInactive));

     }

     public static String formatCollectionName(String collectionName) {

         return collectionName.replace( '.', '_' );

     }

 }