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/*******************************************************************************
* Copyright (c) 2013 THALES GLOBAL SERVICES.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.tools.internal.validation.description.constraints;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.validation.EMFEventType;
import org.eclipse.emf.validation.IValidationContext;
import org.eclipse.sirius.common.tools.api.util.StringUtil;
import org.eclipse.sirius.description.style.EdgeStyleDescription;
import org.eclipse.sirius.tools.internal.validation.AbstractConstraint;
/**
* Constraint ensuring that all Interpreted Expressions of the Odesign are
* valid.
*
* @author alagarde
*
*/
public class RequiredEdgeStyleDescriptionSizeExpressionConstraint extends AbstractConstraint {
/**
*
* {@inheritDoc}
*
* @see org.eclipse.emf.validation.AbstractModelConstraint#validate(org.eclipse.emf.validation.IValidationContext)
*/
@Override
public IStatus validate(IValidationContext ctx) {
final EObject eObj = ctx.getTarget();
final EMFEventType eventType = ctx.getEventType();
// In the case of batch mode.
if (eventType == EMFEventType.NULL) {
if (eObj instanceof EdgeStyleDescription && StringUtil.isEmpty(((EdgeStyleDescription) eObj).getSizeComputationExpression())) {
return ctx.createFailureStatus(eObj);
}
}
return ctx.createSuccessStatus();
}
}
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