[Exporter.Geneva] LogExporter to serialize Exception Stack

[cijothomas]

Fixes #439

Changes

Please provide a brief description of the changes here.

For significant contributions please make sure you have completed the following items:

• Appropriate CHANGELOG.md updated for non-trivial changes
• Design discussion issue #

[cijothomas]

Failed OpenTelemetry.Instrumentation.Wcf.Tests.TelemetryClientMessageInspectorTests.OutgoingRequestInstrumentationTest(instrument: True, filter: False, suppressDownstreamInstrumentation: True, includeVersion: False, enrich: False, enrichmentException: False, emptyOrNullAction: False) [1 ms]
Error Message:
System.ObjectDisposedException : Cannot access a disposed object.
Object name: 'System.Net.HttpListener'.
Stack Trace:
at System.Net.HttpListener.CheckDisposed()
at System.Net.HttpListener.Stop()
at OpenTelemetry.Instrumentation.Wcf.Tests.TelemetryClientMessageInspectorTests..ctor() in D:\a\opentelemetry-dotnet-contrib\opentelemetry-dotnet-contrib\test\OpenTelemetry.Instrumentation.Wcf.Tests\TelemetryClientMessageInspectorTests.cs:line 57
at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, Boolean wrapExceptions)

unrelated

[cijothomas]

[xUnit.net 00:00:02.05] OpenTelemetry.Instrumentation.AspNet.Tests.HttpInMetricsListenerTests.HttpDurationMetricIsEmitted [FAIL]
[xUnit.net 00:00:02.06] OpenTelemetry.Instrumentation.AspNet.Tests.HttpInListenerTests.AspNetRequestsAreCollectedSuccessfully(expectedUrl: "https://localhost/", url: "***localhost/", routeType: 0, routeTemplate: null, setStatusToErrorInEnrich: False, filter: null, recordException: False) [FAIL]
Failed OpenTelemetry.Instrumentation.AspNet.Tests.HttpInMetricsListenerTests.HttpDurationMetricIsEmitted [356 ms]
Error Message:
The collection was expected to contain a single element, but it contained 2 elements.
Stack Trace:
at OpenTelemetry.Instrumentation.AspNet.Tests.HttpInMetricsListenerTests.HttpDurationMetricIsEmitted() in D:\a\opentelemetry-dotnet-contrib\opentelemetry-dotnet-contrib\test\OpenTelemetry.Instrumentation.AspNet.Tests\HttpInMetricsListenerTests.cs:line 69
Failed OpenTelemetry.Instrumentation.AspNet.Tests.HttpInListenerTests.AspNetRequestsAreCollectedSuccessfully(expectedUrl: "https://localhost/", url: "***localhost/", routeType: 0, routeTemplate: null, setStatusToErrorInEnrich: False, filter: null, recordException: False) [359 ms]
Error Message:
The collection was expected to contain a single element, but it contained 2 elements.
Stack Trace:
at OpenTelemetry.Instrumentation.AspNet.Tests.HttpInListenerTests.AspNetRequestsAreCollectedSuccessfully(String expectedUrl, String url, Int32 routeType, String routeTemplate, Boolean setStatusToErrorInEnrich, String filter, Boolean recordException) in D:\a\opentelemetry-dotnet-contrib\opentelemetry-dotnet-contrib\test\OpenTelemetry.Instrumentation.AspNet.Tests\HttpInListenerTests.cs:line 172

one more unrelated

[codecov]

Codecov Report

Merging #672 (050fe2f) into main (d4045b8) will increase coverage by 0.05%.
The diff coverage is 100.00%.

❗ Current head 050fe2f differs from pull request most recent head 553a8a1. Consider uploading reports for the commit 553a8a1 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #672      +/-   ##
==========================================
+ Coverage   77.55%   77.60%   +0.05%     
==========================================
  Files         175      175              
  Lines        5310     5323      +13     
==========================================
+ Hits         4118     4131      +13     
  Misses       1192     1192              

Impacted Files	Coverage Δ
...Telemetry.Exporter.Geneva/GenevaExporterOptions.cs	91.89% <100.00%> (+0.22%)	⬆️
...orter.Geneva/MsgPackExporter/MsgPackLogExporter.cs	88.55% <100.00%> (+0.61%)	⬆️

[utpilla]

nit: Add another Assert for exception stack length.

[utpilla]

You could probably update this test to a Theory to test both the exception stack export options.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[CodeBlanch]

LGTM

[reyang]

LGTM for preview version.