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Switching DataFlows to OpenTelemetry vs. IMetricsProvider.
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137 changes: 137 additions & 0 deletions
137
src/HouseofCat.Dataflows/Extensions/WorkStateExtensions.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| using OpenTelemetry.Trace; | ||
| using System.Diagnostics; | ||
|
|
||
| namespace HouseofCat.Dataflows.Extensions; | ||
|
|
||
| public static class WorkStateExtensions | ||
| { | ||
| public static void SetOpenTelemetryError(this IWorkState state, string message = null) | ||
| { | ||
| if (state is null) return; | ||
| state.SetCurrentActivityAsError(message); | ||
|
|
||
| if (state.RootSpan is null) return; | ||
| state.SetCurrentSpanAsError(message); | ||
| } | ||
|
|
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| public static void SetCurrentActivityAsError(this IWorkState state, string message = null) | ||
| { | ||
| var activity = Activity.Current; | ||
| if (activity is null) return; | ||
|
|
||
| activity.SetStatus(ActivityStatusCode.Error, message ?? state.EDI.SourceException?.Message); | ||
| if (state?.EDI is not null) | ||
| { | ||
| if (state.EDI.SourceException is not null) | ||
| { | ||
| activity.RecordException(state.EDI.SourceException); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| activity.SetStatus(ActivityStatusCode.Error, message); | ||
| } | ||
| } | ||
|
|
||
| public static void SetCurrentSpanAsError(this IWorkState state, string message = null) | ||
| { | ||
| var span = Tracer.CurrentSpan; | ||
| if (span is null) return; | ||
|
|
||
| span.SetStatus(Status.Error); | ||
| span.SetAttribute("Error", message); | ||
| if (state?.EDI is not null) | ||
| { | ||
| if (state.EDI.SourceException is not null) | ||
| { | ||
| span.RecordException(state.EDI.SourceException); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public static string OpenTelemetryDefaultProviderTraceSourceNameKey { get; set; } = "OpenTelemetryTraceSourceName"; | ||
| public static string OpenTelemetryDefaultProviderTracerServiceVersionKey { get; set; } = "OpenTelemetryTraceSourceVersion"; | ||
|
|
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| private static readonly string _defaultProviderTracerSourceName = "HouseofCat.Dataflows"; | ||
|
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| public static void SetWorkflowNameAsOpenTelemetrySourceName( | ||
| this IWorkState state, | ||
| string workflowName, | ||
| string version = null) | ||
| { | ||
| state.Data[OpenTelemetryDefaultProviderTraceSourceNameKey] = workflowName ?? _defaultProviderTracerSourceName; | ||
| state.Data[OpenTelemetryDefaultProviderTracerServiceVersionKey] = version; | ||
| } | ||
|
|
||
| public static void StartRootSpan( | ||
| this IWorkState state, | ||
| string spanName, | ||
| SpanKind spanKind = SpanKind.Internal, | ||
| SpanAttributes spanAttributes = null) | ||
| { | ||
| if (state.Data.TryGetValue(OpenTelemetryDefaultProviderTraceSourceNameKey, out var workflowName)) | ||
| { | ||
| state.Data.TryGetValue(OpenTelemetryDefaultProviderTracerServiceVersionKey, out var version); | ||
|
|
||
| state.RootSpan = TracerProvider | ||
| .Default | ||
| ?.GetTracer( | ||
| workflowName?.ToString() ?? _defaultProviderTracerSourceName, | ||
| version?.ToString()) | ||
| ?.StartRootSpan(spanName, spanKind, initialAttributes: spanAttributes); | ||
| } | ||
| else | ||
| { | ||
| state.RootSpan = TracerProvider | ||
| .Default | ||
| ?.GetTracer(_defaultProviderTracerSourceName, null) | ||
| ?.StartRootSpan(spanName, spanKind, initialAttributes: spanAttributes); | ||
| } | ||
| } | ||
|
|
||
| public static TelemetrySpan CreateActiveSpan( | ||
| this IWorkState state, | ||
| string spanName, | ||
| SpanKind spanKind = SpanKind.Internal, | ||
| SpanAttributes spanAttributes = null) | ||
| { | ||
| if (state.Data.TryGetValue(OpenTelemetryDefaultProviderTraceSourceNameKey, out var workflowName)) | ||
| { | ||
| state.Data.TryGetValue(OpenTelemetryDefaultProviderTracerServiceVersionKey, out var version); | ||
|
|
||
| return TracerProvider | ||
| .Default | ||
| ?.GetTracer( | ||
| workflowName?.ToString() ?? _defaultProviderTracerSourceName, | ||
| version?.ToString()) | ||
| ?.StartActiveSpan( | ||
| spanName, | ||
| spanKind, | ||
| parentContext: state.RootSpan?.Context ?? default, | ||
| initialAttributes: spanAttributes); | ||
| } | ||
| else | ||
| { | ||
| return TracerProvider | ||
| .Default | ||
| ?.GetTracer(_defaultProviderTracerSourceName, null) | ||
| ?.StartActiveSpan( | ||
| spanName, | ||
| spanKind, | ||
| parentContext: state.RootSpan?.Context ?? default, | ||
| initialAttributes: spanAttributes); | ||
| } | ||
| } | ||
|
|
||
| public static void EndRootSpan( | ||
| this IWorkState state, | ||
| bool includeErrorWhenFaulted = false) | ||
| { | ||
| if (includeErrorWhenFaulted && state.IsFaulted) | ||
| { | ||
| state.SetOpenTelemetryError(); | ||
| } | ||
| state?.RootSpan?.End(); | ||
| state?.RootSpan?.Dispose(); | ||
| } | ||
| } |
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