New design for TelemetryHttpModule using ActivitySource + OpenTelemetry.API part 2 - #2254
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…e + OpenTelemetry.API (#2270) * New design for TelemetryHttpModule using ActivitySource + OpenTelemetry.API. (#2249) * New design for TelemetryHttpModule using ActivitySource + OpenTelemetry.API part 2 (#2254) * Use a single context.Items key for state management to make things more efficient. * Added a comment for clarity. * Code review. * New design for TelemetryHttpModule using ActivitySource + OpenTelemetry.API part 3 (#2256) * Update ASP.NET instrumentation to use the new TelemetryHttpModule. * Fixed TelemetryHttpModule not starting its Activity objects. Added an example of request suppression. * Tweaks an logging improvements. * Sealed AspNetInstrumentationEventSource. * Code review. * New design for TelemetryHttpModule using ActivitySource + OpenTelemetry.API part 4 (#2258) * Fixed up TelemetryHttpModule unit tests. * Added tests for the new HasStarted helper and added checks for StartedButNotSampledObj when not sampled. * Code review. * New design for TelemetryHttpModule using ActivitySource + OpenTelemetry.API part 5 (#2261) * Updated ASP.NET instrumentation tests for new TelemetryHttpModule. * Added a test for the new RecordException option. * Code review. * New design for TelemetryHttpModule using ActivitySource + OpenTelemetry.API part 6 (#2264) * CHANGELOG & README updates. * Apply suggestions from code review Co-authored-by: Reiley Yang <reyang@microsoft.com> Co-authored-by: Reiley Yang <reyang@microsoft.com> * Lint + sanity checks. * Lint attempt 2. * Restored CHANGELOG changes lost in merge. Co-authored-by: Reiley Yang <reyang@microsoft.com>
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Relates to #2249
Changes
TelemetryHttpModulepreviously used 2HttpContext.Itemskeys for its state management. Now it uses a single one. This really just simplifies things and makes the perf a little better avoiding an extra trip or two to the hash table.