/*
    * Copyright 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.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.
   */
  package org.kuali.student.ui.admin.lrc;
  
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  import javax.xml.namespace.QName;
  import org.apache.log4j.Logger;
  import org.kuali.rice.core.api.criteria.Predicate;
  import org.kuali.rice.core.api.criteria.PredicateFactory;
  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.common.util.ContextBuilder;
  import org.kuali.student.r2.common.dto.ContextInfo;
  import org.kuali.student.r2.lum.lrc.dto.ResultScaleInfo;
  import org.kuali.student.r2.lum.lrc.service.LRCService;
  import org.kuali.student.r2.lum.util.constants.LrcServiceConstants;
  
  
  public class ResultScaleInfoAdminLookupableImpl extends LookupableImpl
  {
  	private static final Logger LOG = Logger.getLogger(ResultScaleInfoAdminLookupableImpl.class);
  	private transient LRCService lRCService;
      private static final long serialVersionUID = 1L;
  	@Override
  	protected List<ResultScaleInfo> getSearchResults(LookupForm lookupForm, Map<String, String> fieldValues, boolean unbounded)
  	{
  		QueryByCriteria.Builder qBuilder = QueryByCriteria.Builder.create();
  		List<Predicate> pList = new ArrayList<Predicate>();
  		for (String fieldName : fieldValues.keySet())
  		{
  			String value = fieldValues.get(fieldName);
  			if (value != null && !value.isEmpty())
  			{
  				if (fieldName.equals("maxResultsToReturn"))
  				{
  					qBuilder.setMaxResults (Integer.parseInt(value));
  					continue;
  				}
  				pList.add(PredicateFactory.equal(fieldName, value));
  			}
  		}
  		if (!pList.isEmpty())
  		{
  			qBuilder.setPredicates(PredicateFactory.and(pList.toArray(new Predicate[pList.size()])));
  		}
  		try
  		{
  			List<ResultScaleInfo> list = this.getLRCService().searchForResultScales(qBuilder.build(), getContextInfo());
  			return list;
  		}
  		catch (Exception ex) {
  		    throw new RuntimeException(ex);
  		}
  	}
  
  	public void setLRCService(LRCService lRCService)
  	{
  		    this.lRCService = lRCService;
  	}
  
  	public LRCService getLRCService()
  	{
  		if (lRCService == null)
  		{
  			QName qname = new QName(LrcServiceConstants.NAMESPACE,LrcServiceConstants.SERVICE_NAME_LOCAL_PART);
  			lRCService = (LRCService) GlobalResourceLoader.getService(qname);
  		}
  		return this.lRCService;
  	}
  
  	private ContextInfo getContextInfo() {
  	    return ContextBuilder.loadContextInfo();
  	}
  }