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[EventCounters] Add example project #860

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Jan 11, 2023
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[EventCounters] Add example project #860

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19 changes: 19 additions & 0 deletions examples/event-counters/Examples.EventCounters/Examples.EventCounters.csproj
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<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="OpenTelemetry" Version="1.3.1" />
<PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.3.1" />
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</ItemGroup>

<ItemGroup>
<ProjectReference Include="$(RepoRoot)\src\OpenTelemetry.Instrumentation.EventCounters\OpenTelemetry.Instrumentation.EventCounters.csproj" />
</ItemGroup>

</Project>
41 changes: 41 additions & 0 deletions examples/event-counters/Examples.EventCounters/Program.cs
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// <copyright file="Program.cs" company="OpenTelemetry Authors">
// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// </copyright>

using System.Diagnostics.Tracing;
using OpenTelemetry;
using OpenTelemetry.Metrics;

// Create EventSources and EventCounters
EventSource eventSource = new("MyEventSource");
EventCounter eventCounter = new("MyEventCounter", eventSource);
PollingCounter pollingCounter = new("MyPollingCounter", eventSource, () => new Random().NextDouble());
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// Create and Configure Meter Provider
using var meterProvider = Sdk.CreateMeterProviderBuilder()
.AddEventCountersInstrumentation(options =>
{
options.AddEventSources(eventSource.Name);
options.RefreshIntervalSecs = 1;
})
.AddConsoleExporter()
.Build();

// Write to EventCounters
eventCounter.WriteMetric(0);
eventCounter.WriteMetric(1000);

// Wait for EventCounter data to be polled (RefreshIntervalSecs is 1 second by default)
Thread.Sleep(1200);
21 changes: 21 additions & 0 deletions examples/event-counters/Examples.EventCounters/README.md
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# EventCounters Instrumentation for OpenTelemetry .NET - Examples

This is an all-in-one sample that shows how to publish EventCounters using
the OpenTelemetry Metrics Api.

## Expected Output

After running `dotnet run` from this directory

```text
Resource associated with Metric:
service.name: unknown_service:Examples.EventCounters

Export EventCounters.MyEventSource.MyEventCounter, Meter: OpenTelemetry.Instrumentation.EventCounters/1.0.0.0
(2022-11-01T17:37:37.9046769Z, 2022-11-01T17:37:38.4014060Z] DoubleGauge
Value: 500

Export EventCounters.MyEventSource.MyPollingCounter, Meter: OpenTelemetry.Instrumentation.EventCounters/1.0.0.0
(2022-11-01T17:37:37.9076414Z, 2022-11-01T17:37:38.4014299Z] DoubleGauge
Value: 0.5233669819037192
```
7 changes: 7 additions & 0 deletions opentelemetry-dotnet-contrib.sln
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Expand Up @@ -243,6 +243,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Instrumentati
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "process-instrumentation", "examples\process-instrumentation\process-instrumentation.csproj", "{C3B3BBAF-CC38-4D5C-AFA2-33184D07BF75}"
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Examples.EventCounters", "examples\event-counters\Examples.EventCounters\Examples.EventCounters.csproj", "{BA58CC8B-F5CA-4DC7-A3A8-D01B2E10731E}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Expand Down Expand Up @@ -509,6 +511,10 @@ Global
{C3B3BBAF-CC38-4D5C-AFA2-33184D07BF75}.Debug|Any CPU.Build.0 = Debug|Any CPU
{C3B3BBAF-CC38-4D5C-AFA2-33184D07BF75}.Release|Any CPU.ActiveCfg = Release|Any CPU
{C3B3BBAF-CC38-4D5C-AFA2-33184D07BF75}.Release|Any CPU.Build.0 = Release|Any CPU
{BA58CC8B-F5CA-4DC7-A3A8-D01B2E10731E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{BA58CC8B-F5CA-4DC7-A3A8-D01B2E10731E}.Debug|Any CPU.Build.0 = Debug|Any CPU
{BA58CC8B-F5CA-4DC7-A3A8-D01B2E10731E}.Release|Any CPU.ActiveCfg = Release|Any CPU
{BA58CC8B-F5CA-4DC7-A3A8-D01B2E10731E}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
Expand Down Expand Up @@ -587,6 +593,7 @@ Global
{0F18B7C8-B192-4236-9578-7AD02BFC7128} = {2097345F-4DD3-477D-BC54-A922F9B2B402}
{B40B975E-78B2-4712-8B4D-BADA67DF0C0A} = {22DF5DC0-1290-4E83-A9D8-6BB7DE3B3E63}
{C3B3BBAF-CC38-4D5C-AFA2-33184D07BF75} = {B75EE478-97F7-4E9F-9A5A-DB3D0988EDEA}
{BA58CC8B-F5CA-4DC7-A3A8-D01B2E10731E} = {B75EE478-97F7-4E9F-9A5A-DB3D0988EDEA}
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {B0816796-CDB3-47D7-8C3C-946434DE3B66}
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3 changes: 3 additions & 0 deletions src/OpenTelemetry.Instrumentation.EventCounters/README.md
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Expand Up @@ -11,6 +11,9 @@ using OpenTelemetry Metrics API.

## Steps to enable OpenTelemetry.Instrumentation.EventCounters

You can view an example project using event counters at
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`/examples/event-counters/Examples.EventCounters`.

### Step 1: Install Package

Add a reference to the
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