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namespace System.Web.Routing {
using System;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Web;
using System.Runtime.CompilerServices;
[TypeForwardedFrom("System.Web.Routing, Version=3.5.0.0, Culture=Neutral, PublicKeyToken=31bf3856ad364e35")]
public abstract class UrlRoutingHandler : IHttpHandler {
private RouteCollection _routeCollection;
protected virtual bool IsReusable {
get {
return false;
}
}
[SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly",
Justification = "This needs to be settable for unit tests.")]
public RouteCollection RouteCollection {
get {
if (_routeCollection == null) {
_routeCollection = RouteTable.Routes;
}
return _routeCollection;
}
set {
_routeCollection = value;
}
}
protected virtual void ProcessRequest(HttpContext httpContext) {
ProcessRequest(new HttpContextWrapper(httpContext));
}
protected virtual void ProcessRequest(HttpContextBase httpContext) {
RouteData routeData = RouteCollection.GetRouteData(httpContext);
if (routeData == null) {
throw new HttpException(404, SR.GetString(SR.UrlRoutingHandler_NoRouteMatches));
}
IRouteHandler routeHandler = routeData.RouteHandler;
if (routeHandler == null) {
throw new InvalidOperationException(SR.GetString(SR.UrlRoutingModule_NoRouteHandler));
}
RequestContext requestContext = new RequestContext(httpContext, routeData);
IHttpHandler httpHandler = routeHandler.GetHttpHandler(requestContext);
if (httpHandler == null) {
throw new InvalidOperationException(
String.Format(
CultureInfo.CurrentUICulture,
SR.GetString(SR.UrlRoutingModule_NoHttpHandler),
routeHandler.GetType()));
}
VerifyAndProcessRequest(httpHandler, httpContext);
}
protected abstract void VerifyAndProcessRequest(IHttpHandler httpHandler, HttpContextBase httpContext);
#region IHttpHandler Members
bool IHttpHandler.IsReusable {
get {
return IsReusable;
}
}
void IHttpHandler.ProcessRequest(HttpContext context) {
ProcessRequest(context);
}
#endregion
}
}
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