/**

  * Copyright 2012 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.osedu.org/licenses/ECL-2.0

  *

  * 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.

  *

  * Created by Daniel on 3/30/12

  */

 package org.kuali.student.enrollment.class2.appointment.service.impl;

 import org.kuali.rice.core.api.criteria.Predicate;

 import org.kuali.rice.core.api.criteria.QueryByCriteria;

 import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;

 import org.kuali.rice.krad.lookup.LookupableImpl;

 import org.kuali.rice.krad.web.form.LookupForm;

 import org.kuali.student.enrollment.class2.appointment.dto.StudentGroupWrapper;

 import org.kuali.student.r2.common.constants.CommonServiceConstants;

 import org.kuali.student.r2.common.dto.ContextInfo;

 import org.kuali.student.r2.core.population.dto.PopulationInfo;

 import org.kuali.student.r2.core.population.service.PopulationService;

 import javax.xml.namespace.QName;

 import java.util.ArrayList;

 import java.util.List;

 import java.util.Map;

 import static org.kuali.rice.core.api.criteria.PredicateFactory.and;

 import static org.kuali.rice.core.api.criteria.PredicateFactory.like;

 /**

  * This class //TODO ...

  *

  * @author Kuali Student Team

  */

 public class StudentGroupWrapperLookupableImpl extends LookupableImpl {

     private transient PopulationService populationService;

     @Override

     protected List<?> getSearchResults(LookupForm lookupForm, Map<String, String> fieldValues, boolean unbounded) {

         List<StudentGroupWrapper> results = new ArrayList<StudentGroupWrapper>();

         ContextInfo context = new ContextInfo();

         QueryByCriteria.Builder qBuilder = QueryByCriteria.Builder.create();

         List<Predicate> pList = new ArrayList<Predicate>();

         qBuilder.setPredicates();

         // create predicates for search parameters

         for(String key : fieldValues.keySet()){

             if(key.equalsIgnoreCase("name")){

                 Predicate grpName = like(key,fieldValues.get(key));

                 pList.add(grpName);

             } else{

                 Predicate words = like(key,fieldValues.get(key));

                 pList.add(words);

             }

         }

         if (!pList.isEmpty()){

             Predicate[] preds = new Predicate[pList.size()];

             pList.toArray(preds);

             qBuilder.setPredicates(and(preds));

         }

         try {

             // method returns list of populationinfos.

             java.util.List<PopulationInfo> populationInfos = getPopulationService().searchForPopulations(qBuilder.build(), context);

             if(!populationInfos.isEmpty()){

                 for(PopulationInfo populationInfo:populationInfos){

                     StudentGroupWrapper studentGroupWrapper = new StudentGroupWrapper();

                     studentGroupWrapper.setId(populationInfo.getId());

                     studentGroupWrapper.setName(populationInfo.getName());

                     studentGroupWrapper.setDescription(populationInfo.getDescr().getPlain());

                     results.add(studentGroupWrapper);

                 }

             }

         } catch (Exception e) {

             throw new RuntimeException("Error Performing Search",e); //To change body of catch statement use File | Settings | File Templates.

         }

         return results;

     }

     protected PopulationService getPopulationService() {

         //populationService is retrieved using global resource loader which is wired in ks-enroll-context.xml

         if(populationService == null) {

             populationService = (PopulationService) GlobalResourceLoader.getService(new QName(CommonServiceConstants.REF_OBJECT_URI_GLOBAL_PREFIX+"population", "PopulationService"));

         }

         return populationService;

     }

     public static void main(String[] args){

         StudentGroupWrapperLookupableImpl studentWrapper = new StudentGroupWrapperLookupableImpl();

         studentWrapper.getPopulationService();

     }

 }