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/*****************************************************************************
* Copyright (c) 2018 Christian W. Damus and others.
*
* 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:
* Christian W. Damus - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.service.types.helper.advice;
import static org.eclipse.gmf.runtime.common.core.command.CompositeCommand.compose;
import java.util.Optional;
import java.util.Set;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyDependentsRequest;
import org.eclipse.uml2.uml.CombinedFragment;
import org.eclipse.uml2.uml.InteractionOperand;
/**
* Edit-helper advice for {@link InteractionOperand}s.
*
* @since 3.1
*/
public class InteractionOperandEditHelperAdvice extends InteractionFragmentContainerEditHelperAdvice {
/**
* Initializes me.
*/
public InteractionOperandEditHelperAdvice() {
super();
}
@Override
protected ICommand getAfterDestroyDependentsCommand(DestroyDependentsRequest request) {
ICommand result = super.getAfterDestroyDependentsCommand(request);
if (request.getElementToDestroy() instanceof InteractionOperand) {
InteractionOperand operand = (InteractionOperand) request.getElementToDestroy();
CombinedFragment cfrag = (CombinedFragment) operand.getOwner();
// Are we deleting all of the operands of this combined fragment?
Optional<InteractionContainerDeletionContext> context = InteractionContainerDeletionContext.get(request);
result = compose(context.filter(ctx -> deletingAllOperands(ctx, cfrag, request))
.map(__ -> request.getDestroyDependentCommand(cfrag))
.orElse(null), result);
}
return result;
}
static boolean deletingAllOperands(InteractionContainerDeletionContext ctx, CombinedFragment cfrag, DestroyDependentsRequest req) {
@SuppressWarnings("unchecked")
Set<? extends EObject> destroying = req.getDependentElementsToDestroy();
return cfrag.getOperands().stream().allMatch(
operand -> ctx.isBeingDestroyed(operand) || destroying.contains(operand));
}
}
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