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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:
* Patrick Tessier (CEA LIST) Patrick.tessier@cea.fr - Initial API and implementation
*/
package org.eclipse.papyrus.diagram.clazz.custom.command;
import java.util.HashSet;
import java.util.Iterator;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.papyrus.diagram.clazz.custom.helper.InstanceSpecificationLinkHelper;
import org.eclipse.papyrus.diagram.clazz.custom.helper.NamedElementHelper;
import org.eclipse.papyrus.diagram.clazz.custom.ui.AssociationSelectionDialog;
import org.eclipse.papyrus.diagram.clazz.edit.commands.InstanceSpecificationLinkCreateCommand;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.uml2.uml.Association;
import org.eclipse.uml2.uml.Classifier;
import org.eclipse.uml2.uml.InstanceSpecification;
import org.eclipse.uml2.uml.InstanceValue;
import org.eclipse.uml2.uml.Property;
import org.eclipse.uml2.uml.Slot;
import org.eclipse.uml2.uml.Type;
import org.eclipse.uml2.uml.UMLFactory;
/**
* use to construct the instance specification link between two instance
*
*/
public class CInstanceSpecificationLinkCreateCommand extends InstanceSpecificationLinkCreateCommand {
protected HashSet<Association> commonAssociations;
public CInstanceSpecificationLinkCreateCommand(CreateRelationshipRequest request, EObject source, EObject target) {
super(request, source, target);
}
@Override
public boolean canExecute() {
if(source != null && target == null) {
//test if is an instanceSpecification
if(source instanceof InstanceSpecification) {
InstanceSpecification instance = (InstanceSpecification)source;
//Is it associated to a classifier?
if(instance.getClassifiers().size() > 0) {
HashSet<Association> assoSource = new HashSet<Association>();
Iterator<Classifier> iterator = instance.getClassifiers().iterator();
while(iterator.hasNext()) {
Classifier classifier = (Classifier)iterator.next();
assoSource.addAll(classifier.getAssociations());
}
//how many association it linked?
if(assoSource.size() > 0) {
return true;
}
}
}
return false;
}
//source and target != null
//look for if it exist at least a common association between classifiers referenced between these instances
if(source != null && target != null) {
if(!(source instanceof InstanceSpecification)) {
return false;
}
if(!(target instanceof InstanceSpecification)) {
return false;
}
if(((InstanceSpecification)source).getClassifiers().size() == 0 || ((InstanceSpecification)target).getClassifiers().size() == 0) {
return false;
}
HashSet<Association> assoSource = new HashSet<Association>();
Iterator<Classifier> iterator = ((InstanceSpecification)source).getClassifiers().iterator();
while(iterator.hasNext()) {
Classifier classifier = (Classifier)iterator.next();
assoSource.addAll(classifier.getAssociations());
}
HashSet<Association> assoTarget = new HashSet<Association>();
iterator = ((InstanceSpecification)target).getClassifiers().iterator();
while(iterator.hasNext()) {
Classifier classifier = (Classifier)iterator.next();
assoTarget.addAll(classifier.getAssociations());
}
assoSource.retainAll(assoTarget);
commonAssociations = new HashSet<Association>();
commonAssociations.addAll(assoSource);
return (commonAssociations.size() > 0);
}
return false;
}
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
AssociationSelectionDialog associationSelectionDialog;
Association selectedAssociation = null;
if(((InstanceSpecification)source).getClassifiers().size() > 0 && ((InstanceSpecification)target).getClassifiers().size() > 0) {
//look for the good association
associationSelectionDialog = new AssociationSelectionDialog(new Shell(), SWT.NATIVE, commonAssociations);
associationSelectionDialog.open();
selectedAssociation = associationSelectionDialog.getSelectedAssociation();
//creation of the instance specification link
// with a name a container, and set the source and target
InstanceSpecification instanceSpecification = org.eclipse.uml2.uml.UMLFactory.eINSTANCE.createInstanceSpecification();
getContainer().getPackagedElements().add(instanceSpecification);
instanceSpecification.setName(NamedElementHelper.EINSTANCE.getNewUMLElementName(instanceSpecification.getOwner(), instanceSpecification.eClass()));
instanceSpecification.getClassifiers().add(selectedAssociation);
InstanceSpecificationLinkHelper.addEnd(instanceSpecification, ((InstanceSpecification)source));
InstanceSpecificationLinkHelper.addEnd(instanceSpecification, ((InstanceSpecification)target));
//Creation of slots into the good instance by taking in account the association
Iterator<Property> proIterator = selectedAssociation.getMemberEnds().iterator();
while(proIterator.hasNext()) {
Property property = (Property)proIterator.next();
Slot slot = UMLFactory.eINSTANCE.createSlot();
slot.setDefiningFeature(property);
if(((InstanceSpecification)source).getClassifiers().contains(property.getOwner())) {
((InstanceSpecification)source).getSlots().add(slot);
associateValue(((InstanceSpecification)target), slot, property.getType());
} else if(((InstanceSpecification)target).getClassifiers().contains(property.getOwner())) {
((InstanceSpecification)target).getSlots().add(slot);
associateValue(((InstanceSpecification)source), slot, property.getType());
} else {
instanceSpecification.getSlots().add(slot);
if(((InstanceSpecification)source).getClassifiers().contains(property.getType())) {
associateValue(((InstanceSpecification)source), slot, property.getType());
} else {
associateValue(((InstanceSpecification)target), slot, property.getType());
}
}
}
return CommandResult.newOKCommandResult(instanceSpecification);
}
return CommandResult.newCancelledCommandResult();
}
/**
* create an instanceValue for the slot (owner) with the reference to InstanceSpecification and the good type
*
* @param instanceSpecification
* that is referenced by the instanceValue
* @param owner
* of the instance value
* @param type
* of the instanceValue
* @return a instanceValue
*/
protected InstanceValue associateValue(InstanceSpecification instanceSpecification, Slot owner, Type type) {
InstanceValue iv = UMLFactory.eINSTANCE.createInstanceValue();
iv.setName(NamedElementHelper.EINSTANCE.getNewUMLElementName(owner, iv.eClass()));
iv.setType(type);
iv.setInstance(instanceSpecification);
owner.getValues().add(iv);
return iv;
}
}
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