if (model.getExtension(namespaceURI) != null) {
layoutModel = (LayoutModelPlugin) model
.getExtension(namespaceURI);
} else {
layoutModel = new LayoutModelPlugin(model);
model.addExtension(namespaceURI, layoutModel);
}
}
if (contextObject instanceof SBase) {
setLevelAndVersionFor(newContextObject,
(SBase) contextObject);