/*

  * Copyright 2009 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.contract.model.validation;

 import org.kuali.student.contract.model.SearchCriteria;

 import org.kuali.student.contract.model.SearchType;

 import java.util.ArrayList;

 import java.util.Collection;

 /**

  * This validates a single criteriainoary entry

  * @author nwright

  */

 public class SearchCriteriaValidator implements ModelValidator {

     private SearchCriteria criteria;

     private SearchType searchType;

     public SearchCriteriaValidator(SearchCriteria criteria, SearchType searchType) {

         this.criteria = criteria;

         this.searchType = searchType;

     }

     private Collection errors;

     @Override

     public Collection<String> validate() {

         errors = new ArrayList();

         basicValidation();

         if (criteria.getParameters() == null) {

             addError("A parameter list is required even if no parameters");

         }

         return errors;

     }

     private void basicValidation() {

         if (criteria.getKey().equals("")) {

             addError("criteria key is required");

         }

         if (!criteria.getType().equals("Criteria")) {

             addError("'Type' column in the criteria must be 'Criteria'");

         }

         if (criteria.getName().equals("")) {

             addError("Name is required");

         }

         if (criteria.getDescription().equals("")) {

             addError("Description is required");

         }

         if (!criteria.getDataType().equals("")) {

             addError("Data Type should be blank");

         }

     }

     private void addError(String msg) {

         String error = "Error in criteria entry: " + searchType.getKey() + "." + criteria.getKey()

                 + ": " + msg;

         if (!errors.contains(error)) {

             errors.add(error);

         }

     }

 }