HttpHandlerUtil.cs :  » 2.6.4-mono-.net-core » System.Web » System » Web » Mvc » C# / CSharp Open Source

Home
C# / CSharp Open Source
1.2.6.4 mono .net core
2.2.6.4 mono core
3.Aspect Oriented Frameworks
4.Bloggers
5.Build Systems
6.Business Application
7.Charting Reporting Tools
8.Chat Servers
9.Code Coverage Tools
10.Content Management Systems CMS
11.CRM ERP
12.Database
13.Development
14.Email
15.Forum
16.Game
17.GIS
18.GUI
19.IDEs
20.Installers Generators
21.Inversion of Control Dependency Injection
22.Issue Tracking
23.Logging Tools
24.Message
25.Mobile
26.Network Clients
27.Network Servers
28.Office
29.PDF
30.Persistence Frameworks
31.Portals
32.Profilers
33.Project Management
34.RSS RDF
35.Rule Engines
36.Script
37.Search Engines
38.Sound Audio
39.Source Control
40.SQL Clients
41.Template Engines
42.Testing
43.UML
44.Web Frameworks
45.Web Service
46.Web Testing
47.Wiki Engines
48.Windows Presentation Foundation
49.Workflows
50.XML Parsers
C# / C Sharp
C# / C Sharp by API
C# / CSharp Tutorial
C# / CSharp Open Source » 2.6.4 mono .net core » System.Web 
System.Web » System » Web » Mvc » HttpHandlerUtil.cs
/* ****************************************************************************
 *
 * Copyright (c) Microsoft Corporation. All rights reserved.
 *
 * This software is subject to the Microsoft Public License (Ms-PL). 
 * A copy of the license can be found in the license.htm file included 
 * in this distribution.
 *
 * You must not remove this notice, or any other, from this software.
 *
 * ***************************************************************************/

namespace System.Web.Mvc{
    using System;
    using System.Web;
    using System.Web.Mvc.Resources;
    using System.Web.UI;

    internal static class HttpHandlerUtil {

        // Since Server.Execute() doesn't propagate HttpExceptions where the status code is
        // anything other than 500, we need to wrap these exceptions ourselves.
        public static IHttpHandler WrapForServerExecute(IHttpHandler httpHandler) {
            IHttpAsyncHandler asyncHandler = httpHandler as IHttpAsyncHandler;
            return (asyncHandler != null) ? new ServerExecuteHttpHandlerAsyncWrapper(asyncHandler) : new ServerExecuteHttpHandlerWrapper(httpHandler);
        }

        // Server.Execute() requires that the provided IHttpHandler subclass Page.
        internal class ServerExecuteHttpHandlerWrapper : Page {
            private readonly IHttpHandler _httpHandler;

            public ServerExecuteHttpHandlerWrapper(IHttpHandler httpHandler) {
                _httpHandler = httpHandler;
            }

            internal IHttpHandler InnerHandler {
                get {
                    return _httpHandler;
                }
            }

            public override void ProcessRequest(HttpContext context) {
                Wrap(() => _httpHandler.ProcessRequest(context));
            }

            protected static void Wrap(Action action) {
                Wrap(delegate {
                    action();
                    return (object)null;
                });
            }

            protected static TResult Wrap<TResult>(Func<TResult> func) {
                try {
                    return func();
                }
                catch (HttpException he) {
                    if (he.GetHttpCode() == 500) {
                        throw; // doesn't need to be wrapped
                    }
                    else {
                        HttpException newHe = new HttpException(500, MvcResources.ViewPageHttpHandlerWrapper_ExceptionOccurred, he);
                        throw newHe;
                    }
                }
            }
        }

        private sealed class ServerExecuteHttpHandlerAsyncWrapper : ServerExecuteHttpHandlerWrapper, IHttpAsyncHandler {
            private readonly IHttpAsyncHandler _httpHandler;

            public ServerExecuteHttpHandlerAsyncWrapper(IHttpAsyncHandler httpHandler)
                : base(httpHandler) {
                _httpHandler = httpHandler;
            }

            public IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData) {
                return Wrap(() => _httpHandler.BeginProcessRequest(context, cb, extraData));
            }

            public void EndProcessRequest(IAsyncResult result) {
                Wrap(() => _httpHandler.EndProcessRequest(result));
            }
        }

    }
}
www.java2v.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.