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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Diagnostics.CodeAnalysis;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Http.Diagnostics;
using Microsoft.Extensions.Telemetry.Internal;
using Microsoft.Shared.Diagnostics;
namespace Microsoft.Extensions.DependencyInjection;
/// <summary>
/// Extensions for telemetry utilities.
/// </summary>
public static class HttpDiagnosticsServiceCollectionExtensions
{
/// <summary>
/// Adds dependency metadata.
/// </summary>
/// <param name="services"><see cref="IServiceCollection"/> object instance.</param>
/// <param name="downstreamDependencyMetadata">DownstreamDependencyMetadata object to add.</param>
/// <returns>The value of <paramref name="services"/>.</returns>
public static IServiceCollection AddDownstreamDependencyMetadata(this IServiceCollection services, IDownstreamDependencyMetadata downstreamDependencyMetadata)
{
_ = Throw.IfNull(services);
services.TryAddSingleton<IDownstreamDependencyMetadataManager, DownstreamDependencyMetadataManager>();
_ = services.AddSingleton(downstreamDependencyMetadata);
return services;
}
/// <summary>
/// Adds dependency metadata.
/// </summary>
/// <typeparam name="T"><see cref="IDownstreamDependencyMetadata"/> instance to be registered.</typeparam>
/// <param name="services"><see cref="IServiceCollection"/> object instance.</param>
/// <returns>The value of <paramref name="services"/>.</returns>
public static IServiceCollection AddDownstreamDependencyMetadata<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)] T>(this IServiceCollection services)
where T : class, IDownstreamDependencyMetadata
{
_ = Throw.IfNull(services);
services.TryAddSingleton<IDownstreamDependencyMetadataManager, DownstreamDependencyMetadataManager>();
_ = services.AddSingleton<IDownstreamDependencyMetadata, T>();
return services;
}
}
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