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/*****************************************************************************
* Copyright (c) 2010 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:
*
* Yann Tanguy (CEA LIST) yann.tanguy@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.service.types.helper.advice;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.commands.ConfigureElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.edithelper.AbstractEditHelperAdvice;
import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest;
import org.eclipse.papyrus.uml.service.types.utils.SequenceRequestConstant;
import org.eclipse.uml2.uml.Message;
import org.eclipse.uml2.uml.MessageOccurrenceSpecification;
import org.eclipse.uml2.uml.MessageSort;
import org.eclipse.uml2.uml.NamedElement;
import org.eclipse.uml2.uml.OccurrenceSpecification;
import org.eclipse.uml2.uml.TimeConstraint;
/**
* This advice add automatically the constrained element (occurrence specification) for a time constraint
* @since 3.0
*/
public class TimeConstraintHelperAdvice extends AbstractEditHelperAdvice {
/**
* {@inheritDoc}
*/
@Override
protected ICommand getBeforeConfigureCommand(final ConfigureRequest request) {
return new ConfigureElementCommand(request) {
protected CommandResult doExecuteWithResult(IProgressMonitor progressMonitor, IAdaptable info) throws ExecutionException {
NamedElement element = (NamedElement)request.getElementToConfigure();
TimeConstraint newElement = (TimeConstraint)request.getElementToConfigure();
// assign the occurrence specification
Object paramOccurrence = getRequest().getParameter(SequenceRequestConstant.NEAREST_OCCURRENCE_SPECIFICATION);
List<OccurrenceSpecification> occList =getAsOccSpecList(paramOccurrence);
if (!occList.isEmpty()) {
for (OccurrenceSpecification occurrence : occList) {
if (occurrence instanceof MessageOccurrenceSpecification) {
Message mess = ((MessageOccurrenceSpecification) occurrence).getMessage();
if (mess != null && occurrence.equals(mess.getReceiveEvent()) && MessageSort.SYNCH_CALL_LITERAL.equals(mess.getMessageSort())) {
// filter receive event, we prefer the corresponding start event at the same location
continue;
}
}
// otherwise, first occ is just fine
newElement.getConstrainedElements().add(occurrence);
break;
}
}
return CommandResult.newOKCommandResult(element);
}
};
}
/**
* Get the object safely casted as a list of OccurrenceSpecification
*
* @param occurrenceSpecificationList
* the object which is supposed to be a list of OccurrenceSpecification
*/
public static List<OccurrenceSpecification> getAsOccSpecList(Object occurrenceSpecificationList) {
if (occurrenceSpecificationList instanceof List<?>) {
List<?> list = (List<?>) occurrenceSpecificationList;
if (!list.isEmpty()) {
List<OccurrenceSpecification> newList = new ArrayList<OccurrenceSpecification>(list.size());
for (Object elt : list) {
if (elt instanceof OccurrenceSpecification) {
newList.add((OccurrenceSpecification) elt);
}
}
return newList;
}
}
return Collections.emptyList();
}
}
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