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/*
* generated by Xtext
*/
package org.eclipse.papyrus.uml.textedit.transition.xtext.scoping;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.papyrus.infra.gmfdiag.xtext.glue.edit.part.PopupXtextEditorHelper;
import org.eclipse.papyrus.uml.textedit.transition.xtext.umlTransition.CallOrSignalEventRule;
import org.eclipse.uml2.uml.Classifier;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.Reception;
import org.eclipse.uml2.uml.StateMachine;
import org.eclipse.xtext.resource.IEObjectDescription;
import org.eclipse.xtext.scoping.IScope;
import org.eclipse.xtext.scoping.Scopes;
import org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider;
import org.eclipse.xtext.scoping.impl.SimpleScope;
/**
* This class contains custom scoping description.
*
* see : http://www.eclipse.org/Xtext/documentation/latest/xtext.html#scoping
* on how and when to use it
*
*/
public class UmlTransitionScopeProvider extends AbstractDeclarativeScopeProvider {
/**
* Rule for computing the scope of TriggerRule
* @param ctx
* @param ref
* @return
*/
public IScope scope_CallOrSignalEventRule_operationOrSignal(CallOrSignalEventRule ctx, EReference ref) {
return create___CallOrSignalEventRule_operationOrSignal___Scope(ctx) ;
}
private IScope create___CallOrSignalEventRule_operationOrSignal___Scope(CallOrSignalEventRule ctx) {
List<EObject> allOperationsAndSignals = getVisibleOperationAndSignals(PopupXtextEditorHelper.context) ;
Iterable<IEObjectDescription> visibleOperationsAndSignals = Scopes.scopedElementsFor(allOperationsAndSignals) ;
return new SimpleScope(visibleOperationsAndSignals) ;
}
public static List<EObject> getVisibleOperationAndSignals(EObject context) {
List<EObject> allOperationsAndSignals = new ArrayList<EObject>() ;
Element tmpContext = (Element) context ;
while (tmpContext != null &&
!(tmpContext instanceof Classifier && !(tmpContext instanceof StateMachine))) {
tmpContext = tmpContext.getOwner() ;
}
if (tmpContext != null) {
Classifier behavioredClassifier = (Classifier) tmpContext ;
allOperationsAndSignals.addAll(behavioredClassifier.getAllOperations()) ;
if (behavioredClassifier instanceof org.eclipse.uml2.uml.Class) {
org.eclipse.uml2.uml.Class behavioredClass = (org.eclipse.uml2.uml.Class) behavioredClassifier ;
for (Reception r : behavioredClass.getOwnedReceptions()) {
if (r.getSignal() != null) {
if (!(allOperationsAndSignals.contains(r.getSignal()))) {
allOperationsAndSignals.add(r.getSignal()) ;
}
}
}
}
}
return allOperationsAndSignals ;
}
}
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