38 lines
1.2 KiB
C#
38 lines
1.2 KiB
C#
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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namespace Examples.AspNetCore;
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using System.Diagnostics;
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using System.Diagnostics.Metrics;
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/// <summary>
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/// It is recommended to use a custom type to hold references for
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/// ActivitySource and Instruments. This avoids possible type collisions
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/// with other components in the DI container.
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/// </summary>
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public sealed class InstrumentationSource : IDisposable
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{
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internal const string ActivitySourceName = "Examples.AspNetCore";
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internal const string MeterName = "Examples.AspNetCore";
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private readonly Meter meter;
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public InstrumentationSource()
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{
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string? version = typeof(InstrumentationSource).Assembly.GetName().Version?.ToString();
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this.ActivitySource = new ActivitySource(ActivitySourceName, version);
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this.meter = new Meter(MeterName, version);
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this.FreezingDaysCounter = this.meter.CreateCounter<long>("weather.days.freezing", description: "The number of days where the temperature is below freezing");
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}
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public ActivitySource ActivitySource { get; }
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public Counter<long> FreezingDaysCounter { get; }
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public void Dispose()
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{
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this.ActivitySource.Dispose();
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this.meter.Dispose();
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}
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}
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