HttpActionDescriptor IHttpActionSelector.SelectAction(HttpControllerContext controllerContext)
{
HttpActionDescriptor actionDescriptor = null;
_traceWriter.TraceBeginEnd(
controllerContext.Request,
TraceCategories.ActionCategory,
TraceLevel.Info,
_innerSelector.GetType().Name,
SelectActionMethodName,
beginTrace: null,
execute: () => { actionDescriptor = _innerSelector.SelectAction(controllerContext); },
endTrace: (tr) =>
{
tr.Message = Error.Format(
SRResources.TraceActionSelectedMessage,
FormattingUtilities.ActionDescriptorToString(actionDescriptor));
},
errorTrace: null);
// Intercept returned HttpActionDescriptor with a tracing version
return(actionDescriptor == null ? null : new HttpActionDescriptorTracer(controllerContext, actionDescriptor, _traceWriter));
}