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@pranavkm @javiercn @NTaylorMullen @sebastienros
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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 System.Diagnostics;
using System.Linq;
using System.Reflection;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.ApplicationParts;
using Microsoft.AspNetCore.Mvc.Razor.TagHelpers;
using Microsoft.AspNetCore.Mvc.TagHelpers;
namespace Microsoft.Extensions.DependencyInjection
{
/// <summary>
/// Extension methods for setting up MVC services in an <see cref="IServiceCollection" />.
/// </summary>
public static class MvcServiceCollectionExtensions
{
/// <summary>
/// Adds MVC services to the specified <see cref="IServiceCollection" />.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection" /> to add services to.</param>
/// <returns>An <see cref="IMvcBuilder"/> that can be used to further configure the MVC services.</returns>
public static IMvcBuilder AddMvc(this IServiceCollection services)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
var builder = services.AddMvcCore();
builder.AddApiExplorer();
builder.AddAuthorization();
AddDefaultFrameworkParts(builder.PartManager);
// Order added affects options setup order
// Default framework order
builder.AddFormatterMappings();
builder.AddViews();
builder.AddRazorViewEngine();
builder.AddRazorPages();
builder.AddCacheTagHelper();
// +1 order
builder.AddDataAnnotations(); // +1 order
// +10 order
builder.AddJsonFormatters();
builder.AddCors();
return new MvcBuilder(builder.Services, builder.PartManager);
}
private static void AddDefaultFrameworkParts(ApplicationPartManager partManager)
{
var mvcTagHelpersAssembly = typeof(InputTagHelper).GetTypeInfo().Assembly;
if (!partManager.ApplicationParts.OfType<AssemblyPart>().Any(p => p.Assembly == mvcTagHelpersAssembly))
{
partManager.ApplicationParts.Add(new FrameworkAssemblyPart(mvcTagHelpersAssembly));
}
var mvcRazorAssembly = typeof(UrlResolutionTagHelper).GetTypeInfo().Assembly;
if (!partManager.ApplicationParts.OfType<AssemblyPart>().Any(p => p.Assembly == mvcRazorAssembly))
{
partManager.ApplicationParts.Add(new FrameworkAssemblyPart(mvcRazorAssembly));
}
}
/// <summary>
/// Adds MVC services to the specified <see cref="IServiceCollection" />.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection" /> to add services to.</param>
/// <param name="setupAction">An <see cref="Action{MvcOptions}"/> to configure the provided <see cref="MvcOptions"/>.</param>
/// <returns>An <see cref="IMvcBuilder"/> that can be used to further configure the MVC services.</returns>
public static IMvcBuilder AddMvc(this IServiceCollection services, Action<MvcOptions> setupAction)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
if (setupAction == null)
{
throw new ArgumentNullException(nameof(setupAction));
}
var builder = services.AddMvc();
builder.Services.Configure(setupAction);
return builder;
}
[DebuggerDisplay("{Name}")]
private class FrameworkAssemblyPart : AssemblyPart, ICompilationReferencesProvider
{
public FrameworkAssemblyPart(Assembly assembly)
: base(assembly)
{
}
IEnumerable<string> ICompilationReferencesProvider.GetReferencePaths() => Enumerable.Empty<string>();
}
}
}
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