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/*****************************************************************************
* Copyright (c) 2009 Atos Origin.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tristan Faure (Atos Origin) tristan.faure@atosorigin.com - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.diagramprofile.utils;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EEnumLiteral;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EOperation;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EParameter;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.ocl.ParserException;
import org.eclipse.ocl.ecore.CallOperationAction;
import org.eclipse.ocl.ecore.EcoreEnvironmentFactory;
import org.eclipse.ocl.ecore.OCL;
import org.eclipse.ocl.ecore.OCLExpression;
import org.eclipse.ocl.ecore.SendSignalAction;
import org.eclipse.ocl.helper.OCLHelper;
public class OCLUtils {
/**
* variables for ocl
*/
private static org.eclipse.ocl.OCL<EPackage, EClassifier, EOperation, EStructuralFeature, EEnumLiteral, EParameter, EObject, CallOperationAction, SendSignalAction, org.eclipse.ocl.ecore.Constraint, EClass, EObject> ocl = OCL
.newInstance(new EcoreEnvironmentFactory());
private static OCLHelper<EClassifier, ?, ?, ?> oclHelper = ocl.createOCLHelper();
/**
* The Ocl rule is evaluated to the eobject argument this methods returns an object and the type
* depends of the input rule
*
* @param oclRule
* the ocl rule
* @param object
* the object
*
* @return the object, result of the query
*/
public static Object runOclRule(String oclRule, EObject object) {
if (object != null) {
oclHelper.setContext(object.eClass());
}
OCLExpression exp;
try {
exp = (OCLExpression) oclHelper.createQuery(oclRule);
Object result = ocl.evaluate(object, exp);
return result;
} catch (ParserException e) {
e.printStackTrace();
}
return null;
}
}
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