/*

  * Copyright 2007-2009 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.keyvalues;

 import org.apache.log4j.Logger;

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

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

 import org.kuali.rice.kim.api.services.KimApiServiceLocator;

 import org.kuali.rice.kim.api.type.KimType;

 import org.kuali.rice.kim.api.type.KimTypeService;

 import org.kuali.rice.kim.service.KIMServiceLocatorWeb;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 import java.util.Map;

 /**

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

  */

 public class KimAttributeValuesFinder extends KeyValuesBase {

         private static final Logger LOG = Logger.getLogger( KimAttributeValuesFinder.class );

         protected String kimTypeId;

         protected String kimAttributeName;

         /**

          * @see KeyValuesFinder#getKeyValues()

          */

         @Override

         public List<KeyValue> getKeyValues() {

         KimType kimType = KimApiServiceLocator.getKimTypeInfoService().getKimType(kimTypeId);

         if ( kimType != null ) {

                 KimTypeService service = KIMServiceLocatorWeb.getKimTypeService(kimType);

                 if ( service != null ) {

                                 return toKeyValues(service.getAttributeValidValues(kimTypeId,kimAttributeName));

                 } 

                 LOG.error( "Unable to get type service " + kimType.getServiceName() );

         } else {

                 LOG.error( "Unable to obtain KIM type for kimTypeId=" + kimTypeId );

         }

         return Collections.emptyList();

         }

     private static List<KeyValue> toKeyValues(Map<String, String> m) {

         if (m == null) {

             return Collections.emptyList();

         }

         final List<KeyValue> kv = new ArrayList<KeyValue>();

         for (Map.Entry<String, String> e : m.entrySet()) {

             kv.add(new ConcreteKeyValue(e));

         }

         return Collections.unmodifiableList(kv);

     }

         /**

          * @return the kimAttributeName

          */

         public String getKimAttributeName() {

                 return this.kimAttributeName;

         }

         /**

          * @param kimAttributeName the kimAttributeName to set

          */

         public void setKimAttributeName(String kimAttributeName) {

                 this.kimAttributeName = kimAttributeName;

         }

         /**

          * @return the kimTypeId

          */

         public String getKimTypeId() {

                 return this.kimTypeId;

         }

         /**

          * @param kimTypeId the kimTypeId to set

          */

         public void setKimTypeId(String kimTypeId) {

                 this.kimTypeId = kimTypeId;

         }

 }