Use traceflags object (#472)

Author: ocelotl

CHANGELOG.md

@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased](https://github.com/open-telemetry/opentelemetry-python-contrib/compare/v0.200...HEAD)
 
+### Changed
+- `opentelemetry-propagator-ot-trace` Use `TraceFlags` object in `extract`
+  ([#472](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/472))
+
 ### Added
 - Move `opentelemetry-instrumentation` from core repository
   ([#465](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/465))

propagator/opentelemetry-propagator-ot-trace/src/opentelemetry/propagators/ot_trace/__init__.py

@@ -85,7 +85,7 @@ def extract(
                         trace_id=int(traceid, 16),
                         span_id=int(spanid, 16),
                         is_remote=True,
-                        trace_flags=traceflags,
+                        trace_flags=TraceFlags(traceflags),
                     )
                 ),
                 context,

propagator/opentelemetry-propagator-ot-trace/tests/test_ot_trace_propagator.py

@@ -248,6 +248,9 @@ def test_extract_trace_id_span_id_sampled_true(self):
         self.assertEqual(hex(span_context.span_id)[2:], "e457b5a2e4d86bd1")
         self.assertTrue(span_context.is_remote)
         self.assertEqual(span_context.trace_flags, TraceFlags.SAMPLED)
+        self.assertIsInstance(
+            get_current_span().get_span_context().trace_flags, TraceFlags
+        )
 
     def test_extract_trace_id_span_id_sampled_false(self):
         """Test valid trace_id, span_id and sampled false"""
@@ -268,6 +271,9 @@ def test_extract_trace_id_span_id_sampled_false(self):
         self.assertEqual(hex(span_context.span_id)[2:], "e457b5a2e4d86bd1")
         self.assertTrue(span_context.is_remote)
         self.assertEqual(span_context.trace_flags, TraceFlags.DEFAULT)
+        self.assertIsInstance(
+            get_current_span().get_span_context().trace_flags, TraceFlags
+        )
 
     def test_extract_malformed_trace_id(self):
         """Test extraction with malformed trace_id"""