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/*****************************************************************************
* Copyright (c) 2011 CEA LIST.
*
*
* 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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.sysml.facets.query.value.getter;
import org.eclipse.emf.facet.infra.query.core.exception.ModelQueryExecutionException;
import org.eclipse.emf.facet.infra.query.core.java.IJavaModelQuery;
import org.eclipse.emf.facet.infra.query.core.java.ParameterValueList;
import org.eclipse.papyrus.sysml.util.SysmlResource;
import org.eclipse.uml2.uml.Class;
import org.eclipse.uml2.uml.Stereotype;
/** Query to get the id of the requirement */
public class GetRequirementIdQuery implements IJavaModelQuery<Class, String> {
public String evaluate(final Class context, final ParameterValueList parameterValues) throws ModelQueryExecutionException {
Stereotype ste = context.getAppliedStereotype(SysmlResource.REQUIREMENT_ID);
if(ste != null) {
Object value = context.getValue(ste, SysmlResource.REQUIREMENT_ID_ID);
if(value == null) {
return ""; //$NON-NLS-1$
}
if(value instanceof String) {
return (String)value;
}
}
return null;
}
}
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