/**

  * Copyright 2005-2011 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.core.web.component;

 import org.kuali.rice.core.impl.component.ComponentBo;

 import org.kuali.rice.core.impl.component.DerivedComponentBo;

 import org.kuali.rice.kns.inquiry.KualiInquirableImpl;

 import org.kuali.rice.krad.bo.BusinessObject;

 import org.kuali.rice.krad.service.KRADServiceLocator;

 import java.util.HashMap;

 import java.util.Map;

 /**

  * Since ParameterDetailType can be either DataDictionary or DB based, we need a custom {@link org.kuali.rice.krad.inquiry.Inquirable} to

  * check both.

  * 

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

  *

  */

 public class ComponentInquirableImpl extends KualiInquirableImpl {

         private static final String COMPONENT_CODE = "code";

         private static final String NAMESPACE_CODE = "namespaceCode";

         @Override

         public Object retrieveDataObject(Map fieldValues){

                 BusinessObject result = (BusinessObject)super.retrieveDataObject(fieldValues);

                 if (result == null) {

             result = loadDerivedComponent(fieldValues);

         }

                 return result; 

     }

         @Override

         public BusinessObject getBusinessObject(Map fieldValues) {

                 BusinessObject result = super.getBusinessObject(fieldValues);

                 if (result == null) {

                         result = loadDerivedComponent(fieldValues);

                 }

                 return result; 

         }

     protected ComponentBo loadDerivedComponent(Map fieldValues) {

         String componentCode = (String)fieldValues.get(COMPONENT_CODE);

             String namespaceCode = (String)fieldValues.get(NAMESPACE_CODE);

         if (componentCode == null) {

             throw new RuntimeException(COMPONENT_CODE + " is a required key for this inquiry");

         }

             if (namespaceCode == null) {

             throw new RuntimeException(NAMESPACE_CODE + " is a required key for this inquiry");

         }

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

         primaryKeys.put(COMPONENT_CODE, componentCode);

         primaryKeys.put(NAMESPACE_CODE, namespaceCode);

         DerivedComponentBo derivedComponentBo = KRADServiceLocator.getBusinessObjectService().findByPrimaryKey(

                 DerivedComponentBo.class, primaryKeys);

         if (derivedComponentBo != null) {

             return DerivedComponentBo.toComponentBo(derivedComponentBo);

         }

         return null;

     }

 }