aspnetcore/src/Microsoft.AspNetCore.Dispat.../CompositeHandlerFactory.cs

45 lines
1.2 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.Linq;
using Microsoft.AspNetCore.Http;
namespace Microsoft.AspNetCore.Dispatcher
{
public class CompositeHandlerFactory : IHandlerFactory
{
private readonly IHandlerFactory[] _factories;
public CompositeHandlerFactory(IEnumerable<IHandlerFactory> factories)
{
if (factories == null)
{
throw new ArgumentNullException(nameof(factories));
}
_factories = factories.ToArray();
}
public Func<RequestDelegate, RequestDelegate> CreateHandler(Endpoint endpoint)
{
if (endpoint == null)
{
throw new ArgumentNullException(nameof(endpoint));
}
for (var i = 0; i < _factories.Length; i++)
{
var handler = _factories[i].CreateHandler(endpoint);
if (handler != null)
{
return handler;
}
}
return null;
}
}
}