Fix error: update enumeration instantiator logic

Author: Hanna-Shalamitskaya-EPAM

core/esmf-aspect-meta-model-python/README.md

@@ -218,19 +218,3 @@ poetry run tox -e pep8
 # run tests
 poetry run tox -e py310
 ```
-
-## GitHub actions
-
-There are two actions on the GitHub repo:
-- [Check New Pull Request](../../.github/workflows/push_request_check.yml)
-- [Build release](../../.github/workflows/tagged_release.yml)
-
-### Check New Pull Request
-This action run after creation or updating a pull request and run all automation tests with tox command.
-
-### Build release
-Prepare and publish a new release for the `esmf-aspect-model-loader` to the PyPi: 
-[esmf-aspect-model-loader](https://pypi.org/project/esmf-aspect-model-loader/.)
-
-A list of the available releases on the GitHub: 
-[Releases](https://github.com/eclipse-esmf/esmf-sdk-py-aspect-model-loader/releases). 

core/esmf-aspect-meta-model-python/esmf_aspect_meta_model_python/loader/instantiator/enumeration_instantiator.py

@@ -73,11 +73,12 @@ def __to_enum_node_value(self, value_node: Node) -> typing.Dict:
             return value
 
         else:
-            # illegal node type for enumeration value (e.g., Blank Node)
-            raise TypeError(
-                f"Every value of an enumeration must either be a Literal (string, int, etc.) or "
-                f"a URI reference to a ComplexType. Values of type {type(value_node).__name__} are not allowed"
-            )
+            if not isinstance(value_node, rdflib.term.BNode) or value_node == rdflib.namespace.RDF.nil:
+                # illegal node type for enumeration value (e.g., Blank Node)
+                raise TypeError(
+                    f"Every value of an enumeration must either be a Literal (string, int, etc.) or "
+                    f"a URI reference to a ComplexType. Values of type {type(value_node).__name__} are not allowed"
+                )
 
     def __is_collection_value(self, property_subject: str) -> bool:
         characteristic = self._aspect_graph.value(  # type: ignore

core/esmf-aspect-meta-model-python/esmf_aspect_meta_model_python/loader/samm_graph.py

@@ -107,7 +107,11 @@ def to_python(self, aspect_urn: URIRef | str = "") -> List[Aspect]:
         """Convert SAMM graph to Python objects."""
         base_nodes = self.get_base_nodes(aspect_urn)
         if not base_nodes:
-            raise ValueError(f"Could not found Aspect node by the URN {aspect_urn}.")
+            error_message = f"Could not found Aspect node in the model"
+            if aspect_urn:
+                error_message += f" by the URN {aspect_urn}"
+
+            raise ValueError(error_message)
 
         model_element_factory = ModelElementFactory(self._samm_version, self._graph, self._cache)
         aspect_elements = model_element_factory.create_all_graph_elements(base_nodes)

core/esmf-aspect-meta-model-python/esmf_aspect_meta_model_python/resolver/base.py

@@ -76,7 +76,7 @@ def _validate_samm_version(samm_version: str):
         """
         if not samm_version:
             raise ValueError("SAMM version not found in the Graph.")
-        elif samm_version != SammUnitsGraph.SAMM_VERSION:
+        elif samm_version > SammUnitsGraph.SAMM_VERSION:
             raise ValueError(f"{samm_version} is not supported SAMM version.")
 
     def _get_samm_version_from_graph(self):