package org.kuali.student.enrollment.class2.courseoffering.service.impl;
   
   import edu.emory.mathcs.backport.java.util.Collections;
   import org.apache.commons.lang.StringUtils;
   import org.kuali.rice.core.api.criteria.PredicateFactory;
   import org.kuali.rice.core.api.criteria.QueryByCriteria;
   import org.kuali.rice.core.api.util.RiceKeyConstants;
   import org.kuali.rice.krad.lookup.Lookupable;
   import org.kuali.rice.krad.lookup.LookupableImpl;
  import org.kuali.rice.krad.util.GlobalVariables;
  import org.kuali.rice.krad.util.KRADConstants;
  import org.kuali.rice.krad.web.form.LookupForm;
  import org.kuali.student.enrollment.class2.courseoffering.util.CourseOfferingManagementUtil;
  import org.kuali.student.r2.common.util.ContextUtils;
  import org.kuali.student.r2.core.room.dto.BuildingInfo;
  
  import org.apache.log4j.Logger;
  
  import java.util.List;
  import java.util.Map;
  
  /**
   * Building lookup used by activity and final exam quickfinders.
   *
   * Goes with BuildingLookupAndInquiry.xml
   */
  public class BuildingInfoLookupableImpl extends LookupableImpl implements Lookupable {
      private static final Logger LOGGER = Logger.getLogger(BuildingInfoLookupableImpl.class);
  
      @Override
      protected List<?> getSearchResults(LookupForm lookupForm, Map<String, String> fieldValues, boolean unbounded) {
  
          List<BuildingInfo> buildingInfos = null;
  
          try {
              //  Get the (potentially partial) name from the fieldValues.
              String nameString = fieldValues.get("name");
              //  Getting all rows is quite fast so not checking for an empty query.
              //  Put some wildcards around it so that it matches anywhere in the field.
              String name = "*" + StringUtils.upperCase(nameString) + "*";
  
              //  Build the query and execute.
              QueryByCriteria.Builder qbcBuilder = QueryByCriteria.Builder.create();
              qbcBuilder.setPredicates(PredicateFactory.like("name", name));
              QueryByCriteria criteria = qbcBuilder.build();
              buildingInfos = CourseOfferingManagementUtil.getRoomService().searchForBuildings(criteria, ContextUtils.createDefaultContextInfo());
          } catch (Exception e) {
              //  If something goes wrong just log the error and return an empty list.
              String errorTxt = "Query to RoomService failed. See the application log for additional details.";
              LOGGER.error(errorTxt, e);
              GlobalVariables.getMessageMap()
                      .putError(KRADConstants.GLOBAL_MESSAGES, RiceKeyConstants.ERROR_CUSTOM, errorTxt);
              buildingInfos = Collections.emptyList();
          }
  
          return buildingInfos;
      }
  }