96 lines
3.4 KiB
C#
96 lines
3.4 KiB
C#
// <copyright file="TestPrometheus.cs" company="OpenTelemetry Authors">
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// Copyright 2018, 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 Samples
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{
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using System;
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using System.Collections.Generic;
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using System.Threading;
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using System.Threading.Tasks;
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using OpenTelemetry.Exporter.Prometheus;
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using OpenTelemetry.Stats;
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using OpenTelemetry.Stats.Aggregations;
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using OpenTelemetry.Stats.Measures;
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using OpenTelemetry.Tags;
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using OpenTelemetry.Trace;
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internal class TestPrometheus
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{
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private static readonly ITracer Tracer = Tracing.Tracer;
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private static readonly ITagger Tagger = Tags.Tagger;
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private static readonly IStatsRecorder StatsRecorder = Stats.StatsRecorder;
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private static readonly IMeasureLong VideoSize = MeasureLong.Create("my.org/measure/video_size", "size of processed videos", "By");
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private static readonly TagKey FrontendKey = TagKey.Create("my.org/keys/frontend");
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private static readonly long MiB = 1 << 20;
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private static readonly IViewName VideoSizeViewName = ViewName.Create("my.org/views/video_size");
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private static readonly IView VideoSizeView = View.Create(
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VideoSizeViewName,
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"processed video size over time",
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VideoSize,
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Distribution.Create(BucketBoundaries.Create(new List<double>() { 0.0, 16.0 * MiB, 256.0 * MiB })),
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new List<TagKey>() { FrontendKey });
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internal static object Run()
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{
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var exporter = new PrometheusExporter(
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new PrometheusExporterOptions()
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{
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Url = "http://+:9184/metrics/", // "+" is a wildcard used to listen to all hostnames
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},
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Stats.ViewManager);
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exporter.Start();
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try
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{
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var tagContextBuilder = Tagger.CurrentBuilder.Put(FrontendKey, TagValue.Create("mobile-ios9.3.5"));
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Stats.ViewManager.RegisterView(VideoSizeView);
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var t = new Task(() =>
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{
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var r = new Random();
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var values = new byte[1];
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while (true)
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{
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using (var scopedTags = tagContextBuilder.BuildScoped())
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{
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r.NextBytes(values);
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StatsRecorder.NewMeasureMap().Put(VideoSize, values[0] * MiB).Record();
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Thread.Sleep(TimeSpan.FromSeconds(1));
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}
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}
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});
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t.Start();
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Console.WriteLine("Look at metrics in Prometetheus console!");
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Console.ReadLine();
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}
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finally
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{
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exporter.Stop();
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}
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return null;
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}
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}
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}
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