Fix #2348, add handling for non recording span in jaeger exporter

Author: bluesliverx

CHANGELOG.md

@@ -37,6 +37,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#2705](https://github.com/open-telemetry/opentelemetry-python/pull/2705))
 - Add entrypoint for metrics exporter
   ([#2748](https://github.com/open-telemetry/opentelemetry-python/pull/2748))
+- Fix Jaeger propagator usage with NonRecordingSpan
+  ([#2762](https://github.com/open-telemetry/opentelemetry-python/pull/2762))
 
 ## [1.12.0rc1-0.31b0](https://github.com/open-telemetry/opentelemetry-python/releases/tag/v1.12.0rc1-0.31b0) - 2022-05-17
 

propagator/opentelemetry-propagator-jaeger/src/opentelemetry/propagators/jaeger/__init__.py

@@ -81,7 +81,8 @@ def inject(
         if span_context == trace.INVALID_SPAN_CONTEXT:
             return
 
-        span_parent_id = span.parent.span_id if span.parent else 0
+        # Non-recording spans do not have a parent
+        span_parent_id = span.parent.span_id if span.is_recording() and span.parent else 0
         trace_flags = span_context.trace_flags
         if trace_flags.sampled:
             trace_flags |= self.DEBUG_FLAG

propagator/opentelemetry-propagator-jaeger/tests/test_jaeger_propagator.py

@@ -230,3 +230,15 @@ def test_extract_invalid_uber_trace_id_header_to_implicit_ctx(self):
 
                 ctx = FORMAT.extract(carrier)
                 self.assertDictEqual(Context(), ctx)
+
+    def test_non_recording_span_does_not_crash(self):
+        """Make sure propagator does not crash when working with NonRecordingSpan"""
+        tracer = trace.TracerProvider().get_tracer("sdk_tracer_provider")
+        mock_setter = Mock()
+        span = trace_api.NonRecordingSpan(trace_api.SpanContext(1, 1, True))
+        with trace_api.use_span(span, end_on_exit=True):
+            try:
+                FORMAT.inject({}, setter=mock_setter)
+            except Exception as exc:
+                self.fail(f'Injecting failed for NonRecordingSpan with {exc}')
+