[releases/2.1] Cherry-pick: [High Priority] Client generator: provide…

… support backward compatibility for Older libraries (#949) (#951)

[High Priority] Client generator: provide support backward compatibility for Older libraries (#949)

* fix: get version details from the resolve service with information api in the client generator

(cherry picked from commit 992c280)

packages/generator/ni_measurement_plugin_sdk_generator/client/__init__.py

@@ -20,7 +20,7 @@
     extract_base_service_class,
     get_configuration_and_output_metadata_by_index,
     get_configuration_parameters_with_type_and_default_values,
-    get_measurement_service_stub,
+    get_measurement_service_stub_and_version,
     get_output_parameters_with_type,
     get_all_registered_measurement_info,
     get_selected_measurement_service_class,
@@ -65,7 +65,7 @@ def _create_client(
     enum_values_by_type: Dict[Type[Enum], Dict[str, int]] = {}
     type_url_prefix = "type.googleapis.com/"
 
-    measurement_service_stub = get_measurement_service_stub(
+    measurement_service_stub, measurement_version = get_measurement_service_stub_and_version(
         discovery_client, channel_pool, measurement_service_class
     )
     metadata = measurement_service_stub.GetMetadata(v2_measurement_service_pb2.GetMetadataRequest())
@@ -88,7 +88,7 @@ def _create_client(
         directory_out=directory_out,
         class_name=class_name,
         display_name=metadata.measurement_details.display_name,
-        version=metadata.measurement_details.version,
+        version=measurement_version,
         configuration_metadata=configuration_metadata,
         output_metadata=output_metadata,
         service_class=measurement_service_class,

packages/generator/ni_measurement_plugin_sdk_generator/client/_support.py

@@ -64,25 +64,38 @@
 ]
 
 
-def get_measurement_service_stub(
+def get_measurement_service_stub_and_version(
     discovery_client: DiscoveryClient,
     channel_pool: GrpcChannelPool,
     service_class: str,
-) -> v2_measurement_service_pb2_grpc.MeasurementServiceStub:
-    """Returns the measurement service stub of the given service class."""
+) -> Tuple[v2_measurement_service_pb2_grpc.MeasurementServiceStub, str]:
+    """Returns the measurement service stub and version of the given service class."""
     try:
-        service_location = discovery_client.resolve_service(
+        service_location, service_info = discovery_client.resolve_service_with_information(
             _V2_MEASUREMENT_SERVICE_INTERFACE, service_class
         )
     except grpc.RpcError as e:
         if e.code() == grpc.StatusCode.NOT_FOUND:
             raise click.ClickException(
                 f"Could not find any registered measurement with the service class: '{service_class}'."
             )
+        elif e.code() == grpc.StatusCode.UNIMPLEMENTED:
+            raise click.ClickException(
+                "The Measurement Plug-In Client generator requires InstrumentStudio Professional version 2024 Q4 or higher."
+            )
         else:
             raise
     channel = channel_pool.get_channel(service_location.insecure_address)
-    return v2_measurement_service_pb2_grpc.MeasurementServiceStub(channel)
+
+    if not service_info.versions:
+        raise click.ClickException(
+            "The Measurement Plug-In Client generator requires InstrumentStudio Professional version 2024 Q4 or higher."
+        )
+
+    return (
+        v2_measurement_service_pb2_grpc.MeasurementServiceStub(channel),
+        service_info.versions[0],
+    )
 
 
 def get_all_registered_measurement_info(