51 lines
1.8 KiB
C#
51 lines
1.8 KiB
C#
// <copyright file="Instrumentation.cs" company="OpenTelemetry Authors">
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// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// </copyright>
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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 class Instrumentation : 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 Instrumentation()
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{
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string? version = typeof(Instrumentation).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", "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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