aspnetcore/src/Microsoft.AspNetCore.Routing/Matching/IEndpointSelectorPolicy.cs

41 lines
1.9 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using Microsoft.AspNetCore.Http;
using System.Threading.Tasks;
namespace Microsoft.AspNetCore.Routing.Matching
{
/// <summary>
/// A <see cref="MatcherPolicy"/> interface that can implemented to filter endpoints
/// in a <see cref="CandidateSet"/>. Implementations of <see cref="IEndpointSelectorPolicy"/> must
/// inherit from <see cref="MatcherPolicy"/> and should be registered in
/// the dependency injection container as singleton services of type <see cref="MatcherPolicy"/>.
/// </summary>
public interface IEndpointSelectorPolicy
{
/// <summary>
/// Applies the policy to the <see cref="CandidateSet"/>.
/// </summary>
/// <param name="httpContext">
/// The <see cref="HttpContext"/> associated with the current request.
/// </param>
/// <param name="feature">
/// The <see cref="EndpointFeature"/> associated with the current request.
/// </param>
/// <param name="candidates">The <see cref="CandidateSet"/>.</param>
/// <remarks>
/// <para>
/// Implementations of <see cref="IEndpointSelectorPolicy"/> should implement this method
/// and filter the set of candidates in the <paramref name="candidates"/> by setting
/// <see cref="CandidateState.IsValidCandidate"/> to <c>false</c> where desired.
/// </para>
/// <para>
/// To signal an error condition, set <see cref="EndpointFeature.Endpoint"/> to an
/// <see cref="Endpoint"/> value that will produce the desired error when executed.
/// </para>
/// </remarks>
Task ApplyAsync(HttpContext httpContext, EndpointFeature feature, CandidateSet candidates);
}
}