/**
* transform binary association to n-ary association.
*
* @param createConnectionViewAndElementRequest the create connection view and element request
* @param command the command
* @return the command in charge of this job
*/
private Command getAssociationToMultiAssociationCommand(
CreateConnectionViewAndElementRequest createConnectionViewAndElementRequest,
Command command) {
// 0. creation of variables
command = new CompoundCommand();
Point sourceLocation = null;
Point targetLocation = null;
Point nodeLocation = null;
NamedElement newSemanticElement = null; // element that will be added as
// client ou supplier of the
// association
EStructuralFeature feature = null; // role client or supplier
EditPart sourceEditPart = createConnectionViewAndElementRequest.getSourceEditPart();
EditPart targetEditPart = createConnectionViewAndElementRequest.getTargetEditPart();
View associationView = null;
Association association = null;
View parentView = null;
Property sourceEnd = null;
Property targetEnd = null;
// ---------------------------------------------------------
// help to debug
// System.err.println("\n+ 0. creation of variables");
// System.err.println("+-> editting domain"+ getEditingDomain());
// System.err.println("+-> sourceEditpart:" + sourceEditPart);
// System.err.println("+-> targetEditPart:" + targetEditPart);
// ---------------------------------------------------------
// 1. initialization
ICommandProxy startcommand =
((ICommandProxy) createConnectionViewAndElementRequest.getStartCommand());
if (startcommand == null) {
return null;
}
Iterator<?> ite = ((CompositeCommand) startcommand.getICommand()).iterator();
while (ite.hasNext()) {
ICommand currentCommand = (ICommand) ite.next();
if (currentCommand instanceof SetConnectionBendpointsCommand) {
sourceLocation = ((SetConnectionBendpointsCommand) currentCommand).getSourceRefPoint();
targetLocation = ((SetConnectionBendpointsCommand) currentCommand).getTargetRefPoint();
}
}
if (targetEditPart != null) {
// the source or the target must be a association
// look for the edit part that represent the editpart
if (((View) sourceEditPart.getModel()).getElement() != null
&& ((View) sourceEditPart.getModel()).getElement() instanceof Association) {
associationView = ((View) sourceEditPart.getModel());
association = (Association) ((View) sourceEditPart.getModel()).getElement();
nodeLocation = sourceLocation;
newSemanticElement = (NamedElement) ((View) targetEditPart.getModel()).getElement();
feature = UMLPackage.eINSTANCE.getTypedElement_Type();
sourceEnd =
AssociationEndSourceLabelHelper.getInstance()
.getUMLElement(
(org.eclipse.gef.GraphicalEditPart) sourceEditPart.getChildren().get(0));
targetEnd =
AssociationEndTargetLabelHelper.getInstance()
.getUMLElement(
(org.eclipse.gef.GraphicalEditPart) sourceEditPart.getChildren().get(1));
}
if (((View) targetEditPart.getModel()).getElement() != null
&& ((View) targetEditPart.getModel()).getElement() instanceof Association) {
associationView = ((View) targetEditPart.getModel());
association = (Association) ((View) targetEditPart.getModel()).getElement();
nodeLocation = targetLocation;
newSemanticElement = (NamedElement) ((View) sourceEditPart.getModel()).getElement();
feature = UMLPackage.eINSTANCE.getTypedElement_Type();
sourceEnd =
AssociationEndSourceLabelHelper.getInstance()
.getUMLElement(
(org.eclipse.gef.GraphicalEditPart) targetEditPart.getChildren().get(0));
targetEnd =
AssociationEndTargetLabelHelper.getInstance()
.getUMLElement(
(org.eclipse.gef.GraphicalEditPart) targetEditPart.getChildren().get(1));
}
if (associationView == null || (targetEditPart.getModel() instanceof Edge)) {
return null;
}
parentView = (View) associationView.eContainer();
// ---------------------------------------------------------
// help to debug
// System.err.println("+ 1. initialization");
// System.err.println("+-> sourceLocation:" + sourceLocation);
// System.err.println("+-> targetLocation:" + targetLocation);
// System.err.println("+-> AssociationView:" + associationView);
// System.err.println("+-> association:" + association);
// System.err.println("+-> nodeLocation:" + nodeLocation);
// System.err.println("+-> newSemanticElement:" + newSemanticElement);
// System.err.println("+-> feature:" + feature);
// System.err.println("+-> parentView:" + parentView);
// ---------------------------------------------------------
// 8 Ensure that all member ends belong to the association
ArrayList<Property> ownedProperty = new ArrayList<Property>();
ownedProperty.addAll(association.getMemberEnds());
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(association);
if (provider != null) {
SetRequest setRequest =
new SetRequest(
association, UMLPackage.eINSTANCE.getAssociation_OwnedEnd(), ownedProperty);
ICommand iCommand = provider.getEditCommand(setRequest);
((CompoundCommand) command).add(new ICommandProxy(iCommand));
}
// 2. Remove the view of the association
DeleteCommand deleteCommand =
new DeleteLinkDuringCreationCommand(
getEditingDomain(), (Edge) associationView, sourceEditPart.getViewer());
deleteCommand.setReuseParentTransaction(true);
Command removecommand = new ICommandProxy(deleteCommand);
// to execute
((CompoundCommand) command).add(removecommand);
// ((CompoundCommand)command).add(removecommand);
// ---------------------------------------------------------
// help to debug
// System.err.println("+ 2. Remove the view of the association");
// System.err.println("+-> command:" + command.canExecute());
// ---------------------------------------------------------
// 3. set a new end association in the UML model
// 3.1 creation of the property
CreateElementRequest request =
new CreateElementRequest(
getEditingDomain(),
association,
UMLElementTypes.Property_3005,
UMLPackage.eINSTANCE.getAssociation_OwnedEnd());
request.setParameter("type", newSemanticElement);
EditElementCommand propertyCreateCommand = new PropertyCommandForAssociation(request);
propertyCreateCommand.setReuseParentTransaction(true);
((CompoundCommand) command).add(new ICommandProxy(propertyCreateCommand));
// 3. Node creation at this position
View associationViewSource = ((Edge) associationView).getSource();
View associationViewTarget = ((Edge) associationView).getTarget();
AssociationDiamonViewCreateCommand nodeCreation =
new AssociationDiamonViewCreateCommand(
getEditingDomain(),
parentView,
sourceEditPart.getViewer(),
((IGraphicalEditPart) sourceEditPart).getDiagramPreferencesHint(),
nodeLocation,
new SemanticAdapter(association, null));
nodeCreation.setReuseParentTransaction(true);
((CompoundCommand) command).add(new ICommandProxy(nodeCreation));
// 4. reconstruction of the old link by taking in account the old
// connection
ConnectionViewDescriptor viewDescriptor =
new ConnectionViewDescriptor(
UMLElementTypes.Association_4019,
((IHintedType) UMLElementTypes.Association_4019).getSemanticHint(),
((IGraphicalEditPart) sourceEditPart).getDiagramPreferencesHint());
// 5. reconstruction of the first branch between old source to node
ICommand firstBranchCommand =
new GraphicalAssociationBranchViewCommand(
getEditingDomain(),
(IAdaptable) nodeCreation.getCommandResult().getReturnValue(),
new SemanticAdapter(null, associationViewSource),
sourceEditPart.getViewer(),
((IGraphicalEditPart) sourceEditPart).getDiagramPreferencesHint(),
viewDescriptor,
sourceEnd);
// ICommand firstBranchCommand = new
// CustomDeferredCreateConnectionViewCommand(getEditingDomain(),
// ((IHintedType)UMLElementTypes.Association_4019).getSemanticHint(),
// (IAdaptable)nodeCreation.getCommandResult().getReturnValue(), new SemanticAdapter(null,
// associationViewSource), sourceEditPart.getViewer(),
// ((IGraphicalEditPart)sourceEditPart).getDiagramPreferencesHint(), viewDescriptor, null);
((GraphicalAssociationBranchViewCommand) firstBranchCommand).setElement(association);
((CompoundCommand) command).add(new ICommandProxy(firstBranchCommand));
// 6. reconstruction of the second branch between node to old target
ICommand secondBranchCommand =
new GraphicalAssociationBranchViewCommand(
getEditingDomain(),
(IAdaptable) nodeCreation.getCommandResult().getReturnValue(),
new SemanticAdapter(null, associationViewTarget),
sourceEditPart.getViewer(),
((IGraphicalEditPart) sourceEditPart).getDiagramPreferencesHint(),
viewDescriptor,
targetEnd);
// ICommand secondBranchCommand = new
// CustomDeferredCreateConnectionViewCommand(getEditingDomain(),
// ((IHintedType)UMLElementTypes.Association_4019).getSemanticHint(),
// (IAdaptable)nodeCreation.getCommandResult().getReturnValue(), new SemanticAdapter(null,
// associationViewTarget), sourceEditPart.getViewer(),
// ((IGraphicalEditPart)sourceEditPart).getDiagramPreferencesHint(), viewDescriptor, null);
((GraphicalAssociationBranchViewCommand) secondBranchCommand).setElement(association);
((CompoundCommand) command).add(new ICommandProxy(secondBranchCommand));
// 7. Create of the third branch between node and target our source.
ICommand thirdBranchCommand = null;
if (associationView.equals((sourceEditPart.getModel()))) {
// third branch node and target
thirdBranchCommand =
new GraphicalAssociationBranchViewCommand(
getEditingDomain(),
(IAdaptable) nodeCreation.getCommandResult().getReturnValue(),
new SemanticAdapter(null, targetEditPart.getModel()),
sourceEditPart.getViewer(),
((IGraphicalEditPart) sourceEditPart).getDiagramPreferencesHint(),
viewDescriptor,
request);
// thirdBranchCommand = new CustomDeferredCreateConnectionViewCommand(getEditingDomain(),
// ((IHintedType)UMLElementTypes.Association_4019).getSemanticHint(),
// (IAdaptable)nodeCreation.getCommandResult().getReturnValue(), new SemanticAdapter(null,
// targetEditPart.getModel()), sourceEditPart.getViewer(),
// ((IGraphicalEditPart)sourceEditPart).getDiagramPreferencesHint(), viewDescriptor, null);
} else {
// third branch source and node
thirdBranchCommand =
new GraphicalAssociationBranchViewCommand(
getEditingDomain(),
new SemanticAdapter(null, sourceEditPart.getModel()),
(IAdaptable) nodeCreation.getCommandResult().getReturnValue(),
sourceEditPart.getViewer(),
((IGraphicalEditPart) sourceEditPart).getDiagramPreferencesHint(),
viewDescriptor,
request);
// thirdBranchCommand = new CustomDeferredCreateConnectionViewCommand(getEditingDomain(),
// ((IHintedType)UMLElementTypes.Association_4019).getSemanticHint(), new
// SemanticAdapter(null, sourceEditPart.getModel()),
// (IAdaptable)nodeCreation.getCommandResult().getReturnValue(), sourceEditPart.getViewer(),
// ((IGraphicalEditPart)sourceEditPart).getDiagramPreferencesHint(), viewDescriptor, null);
}
((GraphicalAssociationBranchViewCommand) thirdBranchCommand).setElement(association);
((CompoundCommand) command).add(new ICommandProxy(thirdBranchCommand));
}
return command;
}
public Command dropMutliAssociation(
Association association,
EditPartViewer viewer,
PreferencesHint diagramPreferencesHint,
Point location,
View containerView) {
Command command = new CompoundCommand();
// 0. Obtain list of property to display
ArrayList<Property> endToDisplay = new ArrayList(association.getMemberEnds());
// 1. creatiuon of the diamon of association
AssociationDiamonViewCreateCommand nodeCreation =
new AssociationDiamonViewCreateCommand(
getEditingDomain(),
containerView,
viewer,
diagramPreferencesHint,
location,
new SemanticAdapter(association, null));
((CompoundCommand) command).add(new ICommandProxy(nodeCreation));
// 2. for each element create a graphical representation of the type and
// finally the branch
Iterator<Property> iteratorProp = endToDisplay.iterator();
int index = 0;
while (iteratorProp.hasNext()) {
index += 1;
// source editPart
EditPart sourceEditPart = null;
// end of the association end
Property currentEnd = iteratorProp.next();
// look for if an editpart exist for this element
Collection<EditPart> editPartSet = viewer.getEditPartRegistry().values();
Iterator<EditPart> editPartIterator = editPartSet.iterator();
while (editPartIterator.hasNext() && sourceEditPart == null) {
EditPart currentEditPart = editPartIterator.next();
if ((!(currentEditPart instanceof CompartmentEditPart))
&& currentEditPart instanceof GraphicalEditPart
&& currentEnd
.getType()
.equals(((GraphicalEditPart) currentEditPart).resolveSemanticElement())) {
sourceEditPart = currentEditPart;
}
}
// descriptor for the branch
ConnectionViewDescriptor viewBranchDescriptor =
new ConnectionViewDescriptor(
UMLElementTypes.Association_4019,
((IHintedType) UMLElementTypes.Association_4019).getSemanticHint(),
diagramPreferencesHint);
// the editpart exist -> only creation of the branch
if (sourceEditPart != null) {
GraphicalAssociationBranchViewCommand aBranchCommand =
new GraphicalAssociationBranchViewCommand(
getEditingDomain(),
(IAdaptable) nodeCreation.getCommandResult().getReturnValue(),
new SemanticAdapter(null, sourceEditPart.getModel()),
sourceEditPart.getViewer(),
((IGraphicalEditPart) sourceEditPart).getDiagramPreferencesHint(),
viewBranchDescriptor,
currentEnd);
// CustomDeferredCreateConnectionViewCommand aBranchCommand = new
// CustomDeferredCreateConnectionViewCommand(getEditingDomain(),
// ((IHintedType)UMLElementTypes.Association_4019).getSemanticHint(),
// (IAdaptable)nodeCreation.getCommandResult().getReturnValue(), new SemanticAdapter(null,
// sourceEditPart.getModel()), sourceEditPart.getViewer(),
// ((IGraphicalEditPart)sourceEditPart).getDiagramPreferencesHint(), viewBranchDescriptor,
// null);
aBranchCommand.setElement(association);
((CompoundCommand) command).add(new ICommandProxy(aBranchCommand));
} else { // the editpart does not exist
// creation of the node
IAdaptable elementAdapter = new EObjectAdapter(currentEnd.getType());
ViewDescriptor descriptor =
new ViewDescriptor(
elementAdapter, Node.class, null, ViewUtil.APPEND, false, diagramPreferencesHint);
// get the command and execute it.
CreateCommand nodeCreationCommand =
new CreateCommand(getEditingDomain(), descriptor, containerView);
((CompoundCommand) command).add(new ICommandProxy(nodeCreationCommand));
SetBoundsCommand setBoundsCommand =
new SetBoundsCommand(
getEditingDomain(),
"move",
(IAdaptable) nodeCreationCommand.getCommandResult().getReturnValue(),
new Point(location.x + 200, location.y + index * 100));
((CompoundCommand) command).add(new ICommandProxy(setBoundsCommand));
// Creation of the branch
GraphicalAssociationBranchViewCommand aBranchCommand =
new GraphicalAssociationBranchViewCommand(
getEditingDomain(),
(IAdaptable) nodeCreation.getCommandResult().getReturnValue(),
(IAdaptable) nodeCreationCommand.getCommandResult().getReturnValue(),
viewer,
diagramPreferencesHint,
viewBranchDescriptor,
currentEnd);
// CustomDeferredCreateConnectionViewCommand aBranchCommand = new
// CustomDeferredCreateConnectionViewCommand(getEditingDomain(),
// ((IHintedType)UMLElementTypes.Association_4019).getSemanticHint(),
// (IAdaptable)nodeCreation.getCommandResult().getReturnValue(),
// (IAdaptable)nodeCreationCommand.getCommandResult().getReturnValue(), viewer,
// diagramPreferencesHint, viewBranchDescriptor, null);
aBranchCommand.setElement(association);
((CompoundCommand) command).add(new ICommandProxy(aBranchCommand));
// creation of the link
}
}
return command;
}