MetricsServiceFactory extension

Author: andrey-serdyuk

Shared.slnx

@@ -1,7 +1,6 @@
 <Solution>
   <Folder Name="/.solution_items/">
     <File Path="Directory.Build.props" />
-    <File Path="README.md" />
   </Folder>
   <Folder Name="/.solution_items/.nuget/">
     <File Path=".nuget/delist.ps1" />

TaskHub.Observability.Metrics.Abstractions/IMetricsServiceFactory.cs

@@ -2,5 +2,6 @@
 
 public interface IMetricsServiceFactory
 {
+    IMetricsService Create(string name);
     IMetricsService Create(MetricsOptions options);
 }

….Observability.Metrics/MetricsService.cs …Metrics.Implementation/MetricsService.csTaskHub.Observability.Metrics/MetricsService.cs renamed to TaskHub.Observability.Metrics.Implementation/MetricsService.cs TaskHub.Observability.Metrics/MetricsService.cs renamed to TaskHub.Observability.Metrics.Implementation/MetricsService.cs

@@ -0,0 +1,13 @@
+using Microsoft.Extensions.Options;
+using System.Collections.Concurrent;
+using System.Diagnostics.Metrics;
+using TaskHub.Observability.Metrics.Abstractions;
+
+namespace TaskHub.Observability.Metrics.Implementation;
+
+public sealed class MetricsServiceFactory(IMeterFactory meterFactory, IOptionsMonitor<MetricsOptions> options) : IMetricsServiceFactory
+{
+    private readonly ConcurrentDictionary<string, IMetricsService> cache = new();
+    public IMetricsService Create(MetricsOptions options) => new MetricsService(meterFactory, options);
+    public IMetricsService Create(string name) => cache.GetOrAdd(name, i => new MetricsService(meterFactory, options.Get(i)));
+}

TaskHub.Observability.Metrics.Implementation/MetricsServiceFactory.cs

@@ -1,4 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Options" Version="10.0.0" />
+  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\TaskHub.Observability.Metrics.Abstractions\TaskHub.Observability.Metrics.Abstractions.csproj" />
   </ItemGroup>