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ext/wsgi: use current span when extracting fails #226

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ext/wsgi: use current span when extracting fails #226

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3 changes: 3 additions & 0 deletions ext/opentelemetry-ext-wsgi/src/opentelemetry/ext/wsgi/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,9 @@ def __call__(self, environ, start_response):
tracer = trace.tracer()
path_info = environ["PATH_INFO"] or "/"
parent_span = propagators.extract(_get_header_from_environ, environ)
# if extracing fails then use current span as parent
if parent_span is trace.INVALID_SPAN_CONTEXT:
parent_span = tracer.CURRENT_SPAN

span = tracer.create_span(
path_info, parent_span, kind=trace.SpanKind.SERVER
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6 changes: 3 additions & 3 deletions ext/opentelemetry-ext-wsgi/tests/test_wsgi_middleware.py
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Original file line number Diff line number Diff line change
Expand Up @@ -75,10 +75,10 @@ def error_wsgi(environ, start_response):

class TestWsgiApplication(unittest.TestCase):
def setUp(self):
tracer = trace_api.tracer()
self.tracer = trace_api.tracer()
self.span = mock.create_autospec(trace_api.Span, spec_set=True)
self.create_span_patcher = mock.patch.object(
tracer,
self.tracer,
"create_span",
autospec=True,
spec_set=True,
Expand Down Expand Up @@ -131,7 +131,7 @@ def validate_response(self, response, error=None):

# Verify that start_span has been called
self.create_span.assert_called_with(
"/", trace_api.INVALID_SPAN_CONTEXT, kind=trace_api.SpanKind.SERVER
"/", self.tracer.CURRENT_SPAN, kind=trace_api.SpanKind.SERVER
)
self.span.start.assert_called_with()

Expand Down