/**

  * 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.

  *

  * Created by bobhurt on 9/9/11

  */

 package org.kuali.student.r2.core.class1.util;

 import java.util.List;

 import org.kuali.student.r2.common.datadictionary.DataDictionaryValidator;

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

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

 import org.kuali.student.r2.common.exceptions.InvalidParameterException;

 import org.kuali.student.r2.common.exceptions.MissingParameterException;

 import org.kuali.student.r2.common.exceptions.OperationFailedException;

 import org.kuali.student.r2.common.exceptions.PermissionDeniedException;

 /**

  * This class provides static utility methods for services.

  *

  * @author Kuali Student Team

  */

 public class ValidationUtils {

     public static List<ValidationResultInfo> validateInfo(  DataDictionaryValidator validator,

                                                             String validationType,

                                                             Object info,

                                                             ContextInfo context)

                     throws OperationFailedException, MissingParameterException, InvalidParameterException {

         if (null == validator) {

             throw new InvalidParameterException("DataDictionaryValidator parameter cannot be null");

         }

         List<ValidationResultInfo> errors;

         try {

             errors = validator.validate(DataDictionaryValidator.ValidationType.fromString(validationType), info, context);

         } catch (PermissionDeniedException ex) {

             throw new OperationFailedException("Validation failed due to permission exception", ex);

         }

         return errors;

     }

     /**

      * Convert a list of ValidationResultInfo's into a string.

      * 

      * @param vris The list of validation results.

      * @return the semi colon then newline delimited list of results. 

      */

     public static String asString(List<ValidationResultInfo> vris) {

         StringBuilder sb = new StringBuilder();

         String newLine = ";";

         for (ValidationResultInfo vri : vris) {

             sb.append(newLine);

             newLine = "/n";

             sb.append(vri.getMessage());

         }

         return sb.toString();

     }

 }