private CommandResult createDiagram() throws ServiceException {
Resource modelResource = UmlUtils.getUmlResource(modelSet);
Resource notationResource = getNotationResource(modelSet, owner, element);
if (notationResource == null) {
return CommandResult.newErrorCommandResult(
"Cannot create a diagram on the selected element (ReadOnly?)");
}
Resource diResource = DiModelUtils.getDiResource(modelSet);
if (owner == null) {
owner = getRootElement(modelResource);
attachModelToResource(owner, modelResource);
}
service = ElementEditServiceUtils.getCommandProvider(owner);
if (service == null) {
// Something isn't right ...
return null;
}
try {
clientContext = TypeContext.getContext();
} catch (ServiceException e) {
Activator.log.error(e);
}
if (clientContext == null) {
// Something isn't right ...
return null;
}
rule = PolicyChecker.getCurrent().getOwningRuleFor(prototype, owner);
if (rule == null) {
// Something isn't right ...
return null;
}
element = owner;
if (rule.getNewModelPath() != null) {
// We have a path for the root auto-creation
for (ModelAutoCreate auto : rule.getNewModelPath()) {
EReference ref = auto.getFeature();
String type = auto.getCreationType();
if (ref.isMany()) {
element = create(element, ref, type);
} else {
EObject temp = (EObject) element.eGet(ref);
if (temp != null) {
element = temp;
} else {
element = create(element, ref, type);
}
}
}
}
if (rule.getSelectDiagramRoot() != null) {
// We have a path for the root auto-selection
for (RootAutoSelect auto : rule.getSelectDiagramRoot()) {
EReference ref = auto.getFeature();
element = (EObject) element.eGet(ref);
}
}
if (name == null) {
name =
openDiagramNameDialog(
prototype.isNatural()
? getDefaultDiagramName()
: "New" + prototype.getLabel().replace(" ", ""));
}
// canceled
if (name == null) {
return CommandResult.newCancelledCommandResult();
}
Diagram diagram = doCreateDiagram(notationResource, owner, element, prototype, name);
if (diagram != null) {
IPageManager pageManager =
ServiceUtilsForResource.getInstance().getIPageManager(diResource);
pageManager.addPage(diagram);
return CommandResult.newOKCommandResult(diagram);
}
return CommandResult.newCancelledCommandResult();
}
