/**
    * Copyright 2005-2016 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.demo.uif.lookup;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.util.RiceKeyConstants;
  import org.kuali.rice.krad.lookup.LookupForm;
  import org.kuali.rice.krad.lookup.LookupableImpl;
  import org.kuali.rice.krad.util.GlobalVariables;
  
  import java.text.NumberFormat;
  import java.text.ParseException;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  /**
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class TravelLookupableImpl extends LookupableImpl {
  
      /**
       * Add additional validation to check that numeric values are positive
       *
       * @see LookupableImpl#validateSearchParameters(org.kuali.rice.krad.lookup.LookupForm, java.util.Map)
       */
      @Override
      protected boolean validateSearchParameters(LookupForm form, Map<String, String> searchCriteria) {
          boolean valid = super.validateSearchParameters(form, searchCriteria);
  
          if (form.getViewPostMetadata() != null && form.getViewPostMetadata().getLookupCriteria() != null) {
              for (Map.Entry<String, Map<String, Object>> lookupCriteria : form.getViewPostMetadata().getLookupCriteria().entrySet()) {
                  String propertyName = lookupCriteria.getKey();
  
                  validateSearchParameterPositiveValues(form, propertyName, searchCriteria.get(propertyName));
              }
          }
  
          if (GlobalVariables.getMessageMap().hasErrors()) {
              valid = false;
          }
  
          return valid;
      }
  
      /**
       * Validates that any numeric value is non-negative.
       *
       * @param form lookup form instance containing the lookup data
       * @param propertyName property name of the search criteria field to be validated
       * @param searchPropertyValue value given for field to search for
       */
      protected void validateSearchParameterPositiveValues(LookupForm form, String propertyName, String searchPropertyValue) {
          if (StringUtils.isBlank(searchPropertyValue)) {
              return;
          }
  
          NumberFormat format = NumberFormat.getInstance();
          Number number = null;
          try {
              number = format.parse(searchPropertyValue);
          } catch (ParseException e) {
              return;
          }
  
          if (Math.signum(number.doubleValue()) < 0) {
              GlobalVariables.getMessageMap().putError(propertyName,
                          RiceKeyConstants.ERROR_NEGATIVES_NOT_ALLOWED_ON_FIELD, getCriteriaLabel(form, propertyName));
          }
      }
  }