/// <summary>
/// Process events where we need to switch based on the key, which is slower.
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
private bool ProcessEventsByKey(KeyValuePair <string, object> value)
{
switch (value.Key)
{
case "Microsoft.AspNetCore.Hosting.UnhandledException": //used when no exception handler is registered in the request pipeline
case "Microsoft.AspNetCore.Diagnostics.UnhandledException": //used when an exception handler is registered
case "Microsoft.AspNetCore.Diagnostics.HandledException": //used when an exception handler is registered
{
//This can be made faster, but if we're in an exception flow performance is already not fabulous.
var httpContext = value.Value.GetProperty <HttpContext>("httpContext");
var exception = value.Value.GetProperty <Exception>("exception");
if (exception != null)
{
httpContext?.Features.Get <RequestMetric>()?.SetException(exception);
}
break;
}
case "Microsoft.AspNetCore.Hosting.HttpRequestIn.Start":
{
var httpContext = value.Value as HttpContext;
httpContext?.Features.Set(_requestMetricFactory.Start(httpContext));
break;
}
case "Microsoft.AspNetCore.Hosting.HttpRequestIn.Stop":
{
var httpContext = value.Value as HttpContext;
httpContext?.Features.Get <RequestMetric>()?.Stop();
break;
}
default:
return(false); //we didn't handle it.
}
return(true);
}
public virtual void BeginRequest(HttpContext httpContext)
{
httpContext?.Features.Set(_actionMetricFactory.Start(httpContext));
}