Add context customizer hook to Instrumenter API #4167
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trask
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anuraaga,
iNikem,
jkwatson,
laurit,
mateuszrzeszutek,
pavolloffay and
tylerbenson
as code owners
mateuszrzeszutek
approved these changes
Sep 20, 2021
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| // TODO (trask) should we pass startNanos | ||
| // similar to https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/4155? |
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These are only needed to compute duration metrics -- and are sort of useless without endNanos, so I'd say we should leave them out for now.
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| /** | ||
| * Context customizer method that is called during {@link Instrumenter#start(Context, Object)}, | ||
| * allowing customization * of the {@link Context} that is returned from that method. |
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Suggested change
| * allowing customization * of the {@link Context} that is returned from that method. | |
| * allowing customization of the {@link Context} that is returned from that method. |
anuraaga
approved these changes
Sep 21, 2021
laurit
approved these changes
Sep 21, 2021
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Follow-up from #4102 (comment)
The first commit is the Instrumenter API changes only.
The other commits apply this to tomcat, jetty and servlet instrumentation to see what it looks like / if it's worth using it directly inside of instrumentation or if it should only be exposed as a customization hook for users of the instrumentation.