some minor fixes

sdk/core/azure-core/azure/core/settings.py

@@ -116,7 +116,7 @@ def _get_opencensus_wrapper():
     # type: () -> OpencensusWrapper
     """Returns the OpencensusWrapper if opencensus is installed else returns None"""
     try:
-        from azure.core.tracing.ext.opencensus import OpencensusWrapper
+        from azure.core.tracing.ext.opencensus_wrapper import OpencensusWrapper
 
         return OpencensusWrapper
     except ImportError:
@@ -138,7 +138,7 @@ def convert_tracing_impl(value):
     :raises ValueError: If conversion to AbstractSpan fails
 
     """
-    if isinstance(value, AbstractSpan):
+    if issubclass(value.__class__, AbstractSpan):
         return value
 
     _impl_dict = {"opencensus": _get_opencensus_wrapper()}

sdk/core/azure-core/azure/core/tracing/common.py

@@ -35,7 +35,7 @@ def _get_opencensus_wrapper():
     # type: () -> OpencensusWrapper
     """Returns the OpencensusWrapper if opencensus is installed else returns None"""
     try:
-        from azure.core.tracing.ext.opencensus import OpencensusWrapper
+        from azure.core.tracing.ext.opencensus_wrapper  import OpencensusWrapper
 
         return OpencensusWrapper
     except ImportError:
@@ -46,7 +46,7 @@ def set_span_contexts(wrapped_span, span_instance=None, impl_wrapper=None):
     # type: (AbstractSpan, AbstractSpan) -> None
     tracing_context.current_span.set(wrapped_span)
     impl_wrapper = impl_wrapper or wrapped_span
-    tracing_context.tracing_impl.set(impl_wrapper)
+    tracing_context.tracing_impl.set(impl_wrapper.__class__)
     if wrapped_span is not None or (
         span_instance is not None and impl_wrapper is not None
     ):

sdk/core/azure-core/azure/core/tracing/decorator.py

@@ -49,7 +49,7 @@ def wrapper_use_tracer(self, *args, **kwargs):
             common.set_span_contexts(
                 original_span_from_sdk_context,
                 span_instance=original_span_instance,
-                wrapper_class=parent_span,
+                impl_wrapper=parent_span,
             )
         else:
             ans = func(self, *args, **kwargs)

sdk/core/azure-core/azure/core/tracing/decorator_async.py

@@ -49,7 +49,7 @@ async def wrapper_use_tracer(self, *args, **kwargs):
             common.set_span_contexts(
                 original_span_from_sdk_context,
                 span_instance=original_span_instance,
-                wrapper_class=parent_span,
+                impl_wrapper=parent_span,
             )
         else:
             ans = await func(self, *args, **kwargs)