package org.kuali.student.core.enumerationmanagement.bo.options;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Map;

 import org.kuali.rice.core.util.KeyLabelPair;

 import org.kuali.rice.kns.lookup.keyvalues.KeyValuesBase;

 import org.kuali.rice.kns.service.BusinessObjectService;

 import org.kuali.rice.kns.service.KNSServiceLocator;

 import org.kuali.student.core.enumerationmanagement.bo.EnumeratedValue;

 /**

  * This base class creates a KeyValuesFinder for EnumeratedValues consisting of

  * key=EnumeratedValue.code and value=EnumeratedValue.value.  Simply override

  * getEnumerationKey() to return the enumerationKey of the Enumeration you want

  * a KeyValuesFinder for.

  */

 public abstract class EnumerationCodeValuesFinderBase extends KeyValuesBase {

     @SuppressWarnings("unchecked")

     @Override

     public List<KeyLabelPair> getKeyValues() {

         List<KeyLabelPair> labels = new ArrayList<KeyLabelPair>();

         Map<String, Object> criteria = new HashMap<String,Object>();

         criteria.put(EnumeratedValue.ENUMERATION_KEY, getEnumerationKey());

         BusinessObjectService boService = KNSServiceLocator.getBusinessObjectService();

         Collection<EnumeratedValue> values = boService.findMatching(EnumeratedValue.class, criteria);

         Iterator<EnumeratedValue> iterator = values.iterator(); 

         while(iterator.hasNext()) {

             EnumeratedValue value = iterator.next();

             labels.add(new KeyLabelPair(value.getCode(), value.getValue()));

         }

         return labels;

     }

     public abstract String getEnumerationKey();

 }