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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
* Gabriel Pascual (ALL4TEC) gabriel.pascual@all4tec.net - Bug 382954
*/
package org.eclipse.papyrus.uml.diagram.clazz.custom.command;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.common.util.EList;
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.uml.diagram.clazz.custom.helper.InstanceSpecificationLinkHelper;
import org.eclipse.papyrus.uml.diagram.clazz.custom.ui.AssociationSelectionDialog;
import org.eclipse.papyrus.uml.diagram.clazz.edit.commands.InstanceSpecificationLinkCreateCommand;
import org.eclipse.papyrus.uml.tools.utils.NamedElementUtil;
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() {
/*
* Case 0: Only the target is null
*/
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 = getInstanceAssociations(instance);
// How many association it linked?
return assoSource.size() > 0;
}
}
return false;
}
/*
* Case 1 : 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 = getInstanceAssociations((InstanceSpecification) source);
HashSet<Association> assoTarget = getInstanceAssociations((InstanceSpecification) target);
assoSource.retainAll(assoTarget);
commonAssociations = new HashSet<Association>();
commonAssociations.addAll(assoSource);
return (commonAssociations.size() > 0);
}
return false;
}
/**
* Gets the instance associations.
*
* @param instance
* the instance
* @return the instance associations
*/
private HashSet<Association> getInstanceAssociations(InstanceSpecification instance) {
// Initialise set of associations
HashSet<Association> instanceAssociationsSet = new HashSet<Association>();
// Extract all associations of Instance Specification's classifiers
Iterator<Classifier> iterator = getSpecificationClassifier(instance).iterator();
while (iterator.hasNext()) {
Classifier classifier = iterator.next();
instanceAssociationsSet.addAll(classifier.getAssociations());
}
return instanceAssociationsSet;
}
/**
* Gets the specification classifiers.
*
* @param instance
* the instance
* @return the specification classifiers
*/
private Set<Classifier> getSpecificationClassifier(InstanceSpecification instance) {
// Initialise Set of Classifiers
Set<Classifier> specificationClassicfiersSet = new HashSet<Classifier>();
// Explore first rank classifiers
for (Classifier classifier : instance.getClassifiers()) {
// Explore only Classifier which are not already in Set
if (!specificationClassicfiersSet.contains(classifier)) {
specificationClassicfiersSet.add(classifier);
specificationClassicfiersSet.addAll(getInheritedClassifier(classifier, null));
}
}
return specificationClassicfiersSet;
}
/**
* Gets the inherited classifier.
*
* @param classifier
* the classifier
* @return the inherited classifier
*/
private Set<Classifier> getInheritedClassifier(Classifier classifier, Set<Classifier> alreadyParsedClassifier) {
// Initialise set of Classifier from Generalisation
Set<Classifier> generalizationClassifiers = new HashSet<Classifier>();
// Keep track of parsed Classifier to avoid loop
Set<Classifier> parsedClassifiersSet = new HashSet<Classifier>();
if (alreadyParsedClassifier != null) {
parsedClassifiersSet.addAll(alreadyParsedClassifier);
}
// Explore only Classifier which are not already parsed
if (!parsedClassifiersSet.contains(classifier)) {
parsedClassifiersSet.add(classifier);
// Explore all generalisation of Classifier
EList<Classifier> classifierGeneralizations = classifier.parents();
generalizationClassifiers.addAll(classifierGeneralizations);
for (Classifier generalClassifier : classifierGeneralizations) {
generalizationClassifiers.addAll(getInheritedClassifier(generalClassifier, parsedClassifiersSet));
}
}
return generalizationClassifiers;
}
/**
* @see org.eclipse.papyrus.uml.diagram.clazz.edit.commands.InstanceSpecificationLinkCreateCommand#doExecuteWithResult(org.eclipse.core.runtime.IProgressMonitor, org.eclipse.core.runtime.IAdaptable)
*
* @param monitor
* @param info
* @return
* @throws ExecutionException
*/
@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) {
// Ask to user for the good association
associationSelectionDialog = new AssociationSelectionDialog(new Shell(), SWT.NATIVE, commonAssociations);
associationSelectionDialog.open();
selectedAssociation = associationSelectionDialog.getSelectedAssociation();
if (selectedAssociation != null) {
/*
* Creation of the instance specification link
* with a name a container, and set the source and target
*/
InstanceSpecification instanceSpecification = UMLFactory.eINSTANCE.createInstanceSpecification();
getContainer().getPackagedElements().add(instanceSpecification);
instanceSpecification.setName(NamedElementUtil.getDefaultNameWithIncrementFromBase(instanceSpecification.eClass().getName(), instanceSpecification.getOwner().eContents()));
instanceSpecification.getClassifiers().add(selectedAssociation);
Type sourceType = selectedAssociation.getMemberEnds().get(0).getType();
Set<Classifier> sourceSpecificationClassifiersSet = getSpecificationClassifier((InstanceSpecification) source);
if (sourceSpecificationClassifiersSet.contains(sourceType)) {
InstanceSpecificationLinkHelper.addEnd(instanceSpecification, ((InstanceSpecification) source));
InstanceSpecificationLinkHelper.addEnd(instanceSpecification, ((InstanceSpecification) target));
} else {
InstanceSpecificationLinkHelper.addEnd(instanceSpecification, ((InstanceSpecification) target));
InstanceSpecificationLinkHelper.addEnd(instanceSpecification, ((InstanceSpecification) source));
}
// Creation of slots into the good instance by taking in account the association
Iterator<Property> proIterator = selectedAssociation.getMemberEnds().iterator();
Set<Classifier> targetSpecificationClassifiersSet = getSpecificationClassifier((InstanceSpecification) target);
while (proIterator.hasNext()) {
Property property = proIterator.next();
Slot slot = UMLFactory.eINSTANCE.createSlot();
slot.setDefiningFeature(property);
if (sourceSpecificationClassifiersSet.contains(property.getOwner())) {
((InstanceSpecification) source).getSlots().add(slot);
associateValue(((InstanceSpecification) target), slot, property.getType());
} else {
if (targetSpecificationClassifiersSet.contains(property.getOwner())) {
((InstanceSpecification) target).getSlots().add(slot);
associateValue(((InstanceSpecification) source), slot, property.getType());
} else {
instanceSpecification.getSlots().add(slot);
if (sourceSpecificationClassifiersSet.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 instanceValue = UMLFactory.eINSTANCE.createInstanceValue();
instanceValue.setName(NamedElementUtil.getDefaultNameWithIncrementFromBase(instanceValue.eClass().getName(), owner.eContents()));
instanceValue.setType(type);
instanceValue.setInstance(instanceSpecification);
owner.getValues().add(instanceValue);
return instanceValue;
}
}
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