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AnalysisBuilder.cs
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AnalysisBuilder.cs
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// 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 Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Features;
namespace Microsoft.AspNetCore.MiddlewareAnalysis
{
public class AnalysisBuilder : IApplicationBuilder
{
private const string NextMiddlewareName = "analysis.NextMiddlewareName";
public AnalysisBuilder(IApplicationBuilder inner)
{
InnerBuilder = inner;
}
private IApplicationBuilder InnerBuilder { get; }
public IServiceProvider ApplicationServices
{
get { return InnerBuilder.ApplicationServices; }
set { InnerBuilder.ApplicationServices = value; }
}
public IDictionary<string, object> Properties
{
get { return InnerBuilder.Properties; }
}
public IFeatureCollection ServerFeatures
{
get { return InnerBuilder.ServerFeatures;}
}
public RequestDelegate Build()
{
// Add one maker at the end before the default 404 middleware (or any fancy Join middleware).
return InnerBuilder.UseMiddleware<AnalysisMiddleware>("EndOfPipeline")
.Build();
}
public IApplicationBuilder New()
{
return new AnalysisBuilder(InnerBuilder.New());
}
public IApplicationBuilder Use(Func<RequestDelegate, RequestDelegate> middleware)
{
string middlewareName = string.Empty; // UseMiddleware doesn't work with null params.
object middlewareNameObj;
if (Properties.TryGetValue(NextMiddlewareName, out middlewareNameObj))
{
middlewareName = middlewareNameObj?.ToString();
Properties.Remove(NextMiddlewareName);
}
return InnerBuilder.UseMiddleware<AnalysisMiddleware>(middlewareName)
.Use(middleware);
}
}
}