// parent is a <resource>
CPResource resource = (CPResource) parentElement;
if (newElement instanceof CPFile) {
resource.addFile((CPFile) newElement);
} else if (newElement instanceof CPDependency) {
resource.addDependency((CPDependency) newElement);
} else {
throw new OLATRuntimeException(CPOrganizations.class, "you can only add <dependency> or <file> elements to a Resource",
new Exception());
}
return true;