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56 lines
2.6 KiB
C#
56 lines
2.6 KiB
C#
// Copyright (c) Microsoft. All rights reserved.
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#pragma warning disable VSTHRD002 // Synchronous waits are required by OpenTelemetry enrichment callbacks.
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using OpenTelemetry;
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using OpenTelemetry.Trace;
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namespace Harness.Shared.Console;
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/// <summary>
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/// Provides factory methods for creating pre-configured OpenTelemetry tracing for harness samples.
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/// </summary>
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public static class HarnessTracing
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{
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/// <summary>
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/// Creates a <see cref="TracerProvider"/> that captures spans from the specified source and HTTP client activity,
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/// enriching HTTP spans with full request/response headers and bodies, and exports all spans to a timestamped
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/// text file in the application base directory.
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/// </summary>
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/// <param name="sourceName">The activity source name to subscribe to (e.g., "Harness.Research").</param>
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/// <returns>A configured <see cref="TracerProvider"/>, or <see langword="null"/> if the builder returns null.</returns>
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public static TracerProvider? CreateFileTracerProvider(string sourceName)
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{
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var traceLogPath = Path.Combine(AppContext.BaseDirectory, $"traces_{DateTime.UtcNow:yyyyMMdd_HHmmss}_{Guid.NewGuid()}.log");
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return Sdk.CreateTracerProviderBuilder()
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.AddSource(sourceName)
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.AddHttpClientInstrumentation((options) =>
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{
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options.EnrichWithHttpRequestMessage = (activity, request) =>
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{
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activity.SetTag("http.request.headers", request.Headers.ToString());
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if (request.Content != null)
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{
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activity.SetTag("http.request.content.headers", request.Content.Headers.ToString());
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var content = request.Content.ReadAsStringAsync().GetAwaiter().GetResult();
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activity.SetTag("http.request.content.body", content);
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}
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};
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options.EnrichWithHttpResponseMessage = (activity, response) =>
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{
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activity.SetTag("http.response.headers", response.Headers.ToString());
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if (response.Content != null)
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{
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activity.SetTag("http.response.content.headers", response.Content.Headers.ToString());
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var content = response.Content.ReadAsStringAsync().GetAwaiter().GetResult();
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activity.SetTag("http.response.content.body", content);
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}
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};
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})
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.AddProcessor(new SimpleActivityExportProcessor(new FileSpanExporter(traceLogPath)))
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.Build();
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}
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}
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