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1   /*
2    * Copyright 2007 The Kuali Foundation
3    * 
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    * http://www.opensource.org/licenses/ecl2.php
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.ole.coa.businessobject.options;
17  
18  import java.util.ArrayList;
19  import java.util.Collection;
20  import java.util.Iterator;
21  import java.util.List;
22  
23  import org.kuali.ole.sys.context.SpringContext;
24  import org.kuali.rice.core.api.util.ConcreteKeyValue;
25  import org.kuali.rice.krad.bo.KualiCodeBase;
26  import org.kuali.rice.krad.keyvalues.KeyValuesBase;
27  import org.kuali.rice.krad.service.KeyValuesService;
28  
29  /**
30   * This class is the base class for all the ValueFinders for any class extending KualiSystemCode. Subclasses should extend this, but
31   * do nothing. Just extending this class will be sufficient to work.
32   */
33  public abstract class KualiSystemCodeValuesFinder extends KeyValuesBase {
34  
35      /**
36       * Calls getValuesClass() to generate a list of key/value pairs from the {@link KualiCodeBase}'s code as the key and the code
37       * and description as the value
38       * 
39       * @see org.kuali.rice.kns.lookup.keyvalues.KeyValuesFinder#getKeyValues()
40       * @return list of key/value pairs for displaying on the client side
41       */
42      public List getKeyValues() {
43  
44          // get all the KualiCodeService objects that are associated with this class
45          Collection businessObjects = SpringContext.getBean(KeyValuesService.class).findAll(this.getValuesClass());
46          List keyLabels = new ArrayList();
47  
48          // add a blank pair for the first/default key/value pair
49          keyLabels.add(new ConcreteKeyValue("", ""));
50  
51          // build the list of code/name combos
52          for (Iterator iter = businessObjects.iterator(); iter.hasNext();) {
53              KualiCodeBase businessObject = (KualiCodeBase) iter.next();
54              keyLabels.add(new ConcreteKeyValue(businessObject.getCode(), businessObject.getCodeAndDescription()));
55          }
56  
57          return keyLabels;
58      }
59  
60      /**
61       * This method must be implemented by the base class, should return the Class of the object being looked up
62       * 
63       * @return class of object being looked up
64       */
65      protected abstract Class getValuesClass();
66  
67  }