| /***************************************************************************** |
| * Copyright (c) 2019 CEA LIST, and others. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Nicolas FAUVERGUE (CEA LIST) nicolas.fauvergue@cea.fr - Initial API and implementation |
| * |
| *****************************************************************************/ |
| |
| package org.eclipse.papyrus.sysml16.validation.rules.modelelements; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.emf.validation.AbstractModelConstraint; |
| import org.eclipse.emf.validation.IValidationContext; |
| import org.eclipse.papyrus.sysml16.modelelements.Conform; |
| import org.eclipse.papyrus.sysml16.modelelements.View; |
| import org.eclipse.uml2.uml.Class; |
| import org.eclipse.uml2.uml.Generalization; |
| import org.eclipse.uml2.uml.util.UMLUtil; |
| |
| /** |
| * 7.3.2.7 View [1] A view must only conform to a single viewpoint. |
| */ |
| public class ViewSingleViewpointModelConstraint extends AbstractModelConstraint { |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.emf.validation.AbstractModelConstraint#validate(org.eclipse. |
| * emf.validation.IValidationContext) |
| */ |
| @Override |
| public IStatus validate(IValidationContext context) { |
| View view = (View) context.getTarget(); |
| Class clazz = view.getBase_Class(); |
| if (clazz != null) { |
| EList<Generalization> generalizations = clazz.getGeneralizations(); |
| if (generalizations != null) { |
| int countConform = 0; |
| for (Generalization generalization : generalizations) { |
| if (UMLUtil.getStereotypeApplication(generalization, Conform.class) != null) { |
| countConform++; |
| } |
| } |
| if (countConform != 1) { |
| return context.createFailureStatus(context.getTarget()); |
| } |
| } |
| } |
| return context.createSuccessStatus(); |
| } |
| } |