Adding trace.get_tracer #430
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It's fairly common to need to retrieve tracers, and as such adding the additional tracer_source() call to every retrieval of a tracer can add to a lot of extra boilerplate at minimal semantic value. It would be uncommon for one to use multiple trace_source objects, as typically one would want all tracers to be created and behave in a similar way (e.g. passed to the same span processor).
Co-Authored-By: Chris Kleinknecht <libc@google.com>
Co-Authored-By: Chris Kleinknecht <libc@google.com>
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@@ Coverage Diff @@
## master #430 +/- ##
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+ Coverage 88.19% 88.27% +0.07%
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Files 41 41
Lines 2042 2047 +5
Branches 234 234
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+ Hits 1801 1807 +6
Misses 170 170
+ Partials 71 70 -1
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| """trace.get_tracer should proxy to the global tracer source.""" | ||
| from_global_api = trace.get_tracer("foo") | ||
| from_tracer_api = trace.tracer_source().get_tracer("foo") | ||
| self.assertEqual(from_global_api, from_tracer_api) |
| @@ -663,6 +679,10 @@ def tracer_source() -> TracerSource: | |||
| except TypeError: | |||
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Why do we even catch TypeErrors (and only TypeErrors) here?
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To catch exceptions when instantiating an abstract base class
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Thoughts on catching any exception here? the reason I added this was because I ran into behavior where I wasn't overriding the default tracer, and found it's because I had a bug in my unit test (caused by importllib.reload recreating all instances).
I feel like I'd want more feedback, but maybe that's already handled by the lack of an exception handler (error will just bubble up).
closes open-telemetry#429 Signed-off-by: Olivier Albertini <olivier.albertini@montreal.ca>
As a convenience method to retrieve a tracer, introducing trace.get_tracer.
Overall I think this removes an extra element that is strongly implied.