001 /*--------------------------------------------------------------------------+ 002 $Id: SimulinkElementNameConstraint.java 26285 2010-02-18 11:22:54Z juergens $ 003 | | 004 | Copyright 2005-2010 Technische Universitaet Muenchen | 005 | | 006 | Licensed under the Apache License, Version 2.0 (the "License"); | 007 | you may not use this file except in compliance with the License. | 008 | You may obtain a copy of the License at | 009 | | 010 | http://www.apache.org/licenses/LICENSE-2.0 | 011 | | 012 | Unless required by applicable law or agreed to in writing, software | 013 | distributed under the License is distributed on an "AS IS" BASIS, | 014 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 015 | See the License for the specific language governing permissions and | 016 | limitations under the License. | 017 +--------------------------------------------------------------------------*/ 018 package edu.tum.cs.simulink.constraints; 019 020 import edu.tum.cs.commons.constraint.ConstraintViolationException; 021 import edu.tum.cs.commons.constraint.ILocalConstraint; 022 import edu.tum.cs.simulink.model.SimulinkElementBase; 023 024 /** 025 * This constraint checks if a Simulink element has a defined name and ensures 026 * that the name does not start or end with a slash. This is a mandatory 027 * constraint. 028 * 029 * @author deissenb 030 * @author $Author: juergens $ 031 * @version $Rev: 26285 $ 032 * @levd.rating GREEN Hash: 21131D262A9472165AD27FB43B08D542 033 */ 034 public class SimulinkElementNameConstraint implements 035 ILocalConstraint<SimulinkElementBase> { 036 037 /** See class comment. */ 038 public void checkLocalConstraint(SimulinkElementBase element) 039 throws ConstraintViolationException { 040 String name = element.getName(); 041 if (name == null || name.length() == 0) { 042 throw new ConstraintViolationException("Element " + element 043 + " has no name.", element); 044 } 045 if (name.startsWith("/") || name.endsWith("/")) { 046 throw new ConstraintViolationException("Name of element " + element 047 + " starts or ends with a slash.", element); 048 } 049 } 050 }