Question about TSparkleHttpSysDispatcher.OnStart event

BIZ TMS Sparkle
1

Something I'd like to clarify, as I seem to have had the wrong impression when using the above event handler (in a service application):

At design-time I have components SparkleHttpSysDispatcher and SphinxServer with property BaseUrl = ''.

I implemented the following:

procedure TMySphinxService.ServiceStart(Sender: TService; var Started: Boolean);
begin 
    MyServerContainer.SparkleHttpSysDispatcher.Start;
end;

and then

procedure MyServerContainer.SparkleHttpSysDispatcherStart(Sender: TObject);
begin
ReadConfigFromIni; // Sets SphinxServer.BaseUrl from ini file (amongst other settings)
end;

I figured this would work but some how it results in an error that the URL cannot be set (as it's empty).

I have now changed to:

procedure TMySphinxService.ServiceStart(Sender: TService; var Started: Boolean);
begin 
   MyServerContainer.ReadConfigFromIni; // Moved to public declarations.
   MyServerContainer.SparkleHttpSysDispatcher.Start;
end;

This works fine. I would assume that OnStart is only triggered if the SparkleHttpSysDispatcher is not active. Or is this an incorrect assumption?

2

That is a correct assumption but not related to the problem you are having.

THttpSysDispatcher.OnStart is fired when the server changes its status from inactive to active (stopped from started) but for it to happen the BaseUrl property must be already set for the server to properly start.