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

75 lines
2.8 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 System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Routing.Patterns;
namespace Microsoft.AspNetCore.Routing.Matching
{
/// <summary>
/// Represents an <see cref="Endpoint"/> that can be used in URL matching or URL generation.
/// </summary>
public sealed class MatcherEndpoint : Endpoint
{
internal static readonly Func<RequestDelegate, RequestDelegate> EmptyInvoker = (next) =>
{
return (context) => Task.CompletedTask;
};
/// <summary>
/// Initializes a new instance of the <see cref="MatcherEndpoint"/> class.
/// </summary>
/// <param name="invoker">The delegate to invoke to create a <see cref="RequestDelegate"/>.</param>
/// <param name="routePattern">The <see cref="RoutePattern"/> to use in URL matching.</param>
/// <param name="order">The order assigned to the endpoint.</param>
/// <param name="metadata">
/// The <see cref="EndpointMetadataCollection"/> or metadata associated with the endpoint.
/// </param>
/// <param name="displayName">The informational display name of the endpoint.</param>
public MatcherEndpoint(
Func<RequestDelegate, RequestDelegate> invoker,
RoutePattern routePattern,
int order,
EndpointMetadataCollection metadata,
string displayName)
: base(metadata, displayName)
{
if (invoker == null)
{
throw new ArgumentNullException(nameof(invoker));
}
if (routePattern == null)
{
throw new ArgumentNullException(nameof(routePattern));
}
Invoker = invoker;
RoutePattern = routePattern;
Order = order;
}
/// <summary>
/// Gets the invoker. The invoker is a delegate used to create a <see cref="RequestDelegate"/>.
/// </summary>
public Func<RequestDelegate, RequestDelegate> Invoker { get; }
/// <summary>
/// Gets the order value of endpoint.
/// </summary>
/// <remarks>
/// The order value provides absolute control over the priority
/// of an endpoint. Endpoints with a lower numeric value of order have higher priority.
/// </remarks>
public int Order { get; }
/// <summary>
/// Gets the <see cref="RoutePattern"/> associated with the endpoint.
/// </summary>
public RoutePattern RoutePattern { get; }
}
}