/*

  * 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.ServiceMethod;

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

 import java.util.ArrayList;

 import java.util.Collection;

 /**

  * This validates a single criteriainoary entry

  * @author nwright

  */

 public class ServiceMethodParameterValidator implements ModelValidator {

     private ServiceMethodParameter parameter;

     private ServiceMethod method;

     public ServiceMethodParameterValidator(ServiceMethodParameter parameter,

             ServiceMethod method) {

         this.parameter = parameter;

         this.method = method;

     }

     private Collection errors;

     @Override

     public Collection<String> validate() {

         errors = new ArrayList();

         basicValidation();

         return errors;

     }

     private void basicValidation() {

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

             addError("Name is required");

         }

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

             addError("Description is required");

         }

         if (parameter.getType().equals("")) {

             addError("Type is required");

         }

     }

     private void addError(String msg) {

         String error = "Error in parameter: " + method.getService() + "."

                 + method.getName() + "(" + parameter.getName()

                 + "): " + msg;

         if (!errors.contains(error)) {

             errors.add(error);

         }

     }

 }