package org.kuali.student.enrollment.class2.acal.keyvalue;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 import java.util.Iterator;

 import java.io.Serializable;

 import javax.xml.namespace.QName;

 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.lum.lu.service.LuServiceConstants;

 import org.kuali.student.lum.lu.service.LuService;

 import org.kuali.student.common.exceptions.OperationFailedException;

 import org.kuali.student.lum.lu.dto.LuTypeInfo;

 public class CredentialProgramTypeKeyValues extends KeyValuesBase implements Serializable{

         public static final String CREDENTIAL_PROGRAM_TYPE_KEY_PREFIX = "kuali.lu.type.credential.";

         private static final long serialVersionUID = 1L;        

     private transient LuService luService;

     private static List<LuTypeInfo> luTypes;

     public List<KeyValue> getKeyValues() {

         List<KeyValue> keyValues = new ArrayList<KeyValue>();

         try {

                 //pull out data from KSLU_LUTYPE

                    List<LuTypeInfo> luTypeInfoList = getLuTypes();

             for(LuTypeInfo luTypeInfo : luTypeInfoList) {

                 String luTypeInfoKey = luTypeInfo.getId();

                 if (luTypeInfoKey.startsWith(CREDENTIAL_PROGRAM_TYPE_KEY_PREFIX)){

                     String name = luTypeInfo.getName();

                     keyValues.add(new ConcreteKeyValue(luTypeInfoKey,name));

                 }

             }

         }catch (OperationFailedException e) {

             throw new RuntimeException(e);

         }

         return keyValues;

     }

     //Note: here I am using r1 LuService implementation!!!

     protected LuService getLuService() {

         if(luService == null) {

                 luService = (LuService)GlobalResourceLoader.getService(new QName(LuServiceConstants.LU_NAMESPACE,"LuService"));

         }

         return this.luService;

     }

     public List<LuTypeInfo> getLuTypes() throws OperationFailedException {

         if(luTypes == null) {

             luTypes = Collections.unmodifiableList(getLuService().getLuTypes());

         }

         return luTypes;

     }

 }