49 lines
1.8 KiB
C#
49 lines
1.8 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="HttpTaskAsyncHandler.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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/*
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* Assists in converting an HTTP Handler written using the Task Asynchronous Pattern to an IHttpAsyncHandler.
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*
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* Copyright (c) 2010 Microsoft Corporation
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*/
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namespace System.Web {
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using System;
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using System.ComponentModel;
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using System.Threading.Tasks;
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public abstract class HttpTaskAsyncHandler : IHttpAsyncHandler {
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public virtual bool IsReusable {
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get {
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// Default implementation - can be overridden by developer.
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return false;
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}
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}
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[EditorBrowsable(EditorBrowsableState.Never)]
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public virtual void ProcessRequest(HttpContext context) {
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// Default implementation is that this isn't synchronously callable - can be overridden by developer.
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string errorMessage = SR.GetString(SR.HttpTaskAsyncHandler_CannotExecuteSynchronously, GetType());
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throw new NotSupportedException(errorMessage);
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}
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// This is the method we actually expect developers to override.
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public abstract Task ProcessRequestAsync(HttpContext context);
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#region IHttpAsyncHandler methods
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IAsyncResult IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, object extraData) {
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return TaskAsyncHelper.BeginTask(() => ProcessRequestAsync(context), cb, extraData);
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}
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void IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) {
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TaskAsyncHelper.EndTask(result);
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}
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#endregion
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}
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}
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