Existing implementation of AddClassification transform does not allow for restricting addition of classification.
- Add new parameter to addClassification transform, say topLevel. This will add the transform only to top level entity. Add methods so that filters can be added to this at runtime.
- Not having this parameter, will fallback to the original behavior.
- Update ImportTransformShaper to use the ImportResult.getExportResult().getRequest() to use to add the required filters to the transform.