141 lines
4.0 KiB
C#
141 lines
4.0 KiB
C#
// <copyright file="TestMeterProviderBuilder.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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using Microsoft.Extensions.DependencyInjection;
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using OpenTelemetry.Metrics;
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namespace OpenTelemetry.Extensions.DependencyInjection.Tests;
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public sealed class TestMeterProviderBuilder : MeterProviderBuilder, IMeterProviderBuilder, IDisposable
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{
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public TestMeterProviderBuilder()
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{
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this.Services = new ServiceCollection();
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}
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public IServiceCollection? Services { get; private set; }
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public ServiceProvider? ServiceProvider { get; private set; }
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public List<string> Meters { get; } = new();
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public List<object> Instrumentation { get; } = new();
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public MeterProvider? Provider { get; private set; }
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public override MeterProviderBuilder AddInstrumentation<TInstrumentation>(Func<TInstrumentation> instrumentationFactory)
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{
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if (this.Services != null)
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{
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this.ConfigureBuilder((sp, builder) => builder.AddInstrumentation(instrumentationFactory));
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}
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else
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{
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this.Instrumentation.Add(instrumentationFactory());
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}
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return this;
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}
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public override MeterProviderBuilder AddMeter(params string[] names)
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{
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if (this.Services != null)
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{
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this.ConfigureBuilder((sp, builder) => builder.AddMeter(names));
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}
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else
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{
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foreach (string name in names)
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{
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this.Meters.Add(name);
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}
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}
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return this;
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}
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public MeterProviderBuilder ConfigureBuilder(Action<IServiceProvider, MeterProviderBuilder> configure)
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{
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var services = this.Services;
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if (services != null)
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{
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services.ConfigureOpenTelemetryMeterProvider(configure);
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}
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else
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{
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var serviceProvider = this.ServiceProvider ?? throw new InvalidOperationException("Test failure");
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configure(serviceProvider, this);
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}
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return this;
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}
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public MeterProviderBuilder ConfigureServices(Action<IServiceCollection> configure)
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{
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var services = this.Services;
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if (services != null)
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{
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configure(services);
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}
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else
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{
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throw new NotSupportedException("Services cannot be configured after the ServiceProvider has been created.");
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}
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return this;
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}
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public IServiceProvider BuildServiceProvider()
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{
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var services = this.Services ?? throw new InvalidOperationException();
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this.Services = null;
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this.Provider = new NoopMeterProvider();
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return this.ServiceProvider = services.BuildServiceProvider();
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}
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public int InvokeRegistrations()
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{
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var serviceProvider = this.ServiceProvider ?? throw new InvalidOperationException();
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var registrations = serviceProvider.GetServices<IConfigureMeterProviderBuilder>();
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var count = 0;
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foreach (var registration in registrations)
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{
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registration.ConfigureBuilder(serviceProvider, this);
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count++;
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}
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return count;
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}
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public void Dispose()
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{
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this.ServiceProvider?.Dispose();
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}
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MeterProviderBuilder IDeferredMeterProviderBuilder.Configure(Action<IServiceProvider, MeterProviderBuilder> configure)
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=> this.ConfigureBuilder(configure);
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private sealed class NoopMeterProvider : MeterProvider
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{
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}
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}
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