[Glass] Gem go down when ex retry is manage for aBlock on: do:

[Dale Henrichs]

On Thu, Jan 23, 2014 at 4:02 AM, Dario Trussardi <dario.trussardi at tiscali.it
> wrote:

> Ciao,
>
>
> > Ciao,
> >
> >>
> >> Ciao,
> >>
> >>> Dario,
> >>>
> >>> Yes, trying to do a seaside callback inside the exception is a use
> case that has not been tested in GemStone, so I am not surpirsed that it
> causes a nasty problem...
> >>>
> >>> Off the top of my head, I can think of a couple of different
> approaches:
> >>>
> >>>   - given that it may take time for the print connection to succeed,
> I'd replace the
> >>>     Delay loop with a call to a sevice vm that way the seaside gem is
> not blocked
> >>>     while waiting for the print job to be handled
> >>
> >>      what service ?
>
>         Any indication about it, for not block the gem ?
>

The service vm is described here[1]

[1] https://code.google.com/p/glassdb/wiki/ServiceVMExample

>
> >>
> >>>   - you might be able to successfully trigger a dialog to pop up if
> you can
> >>>     avoid making the jquery call inside the exception block ...
> something where you
> >>>     set a flag inside the exception block and pop up the dialog for
> retry in the
> >>>     code following the exception might work as well ...
> >>
> >>      How i can open a pop up when exception occured ?
> >>
> >>      Anyone has an example about it ?
> >>
> >>
> >>>
> >>> There might be other approaches as well...
> >>>
>
> I complete extrapolate the iqDialog from on: do:  exception :
>
>                 stampaok:= false.
>                 erroreTcpIP := false.
>
>                 [ stampaok]  whileFalse:[
>                         stampaok := true.
>                         erroreTcpIP ifTrue:[ self jqDialog: (
> DTRCassaDialogConferma openOnException: exRef
>
>                                                       onModel: dcmModel)
>
>       title: 'ERRORE STAMPA'. ].
>
>                          [TicketBaseTipoCentriCarico newOn: dcmModel
> dettagli: tfDettagli onPrinter: rfrMaster aPrinterTicket ]
>                                  on: PrinterError do: [:ex |    exRef :=
> ex .
>
> erroreTcpIP := true.
>
> stampaok := false.
>                                                                         ex
> return: false. ].
>                                                                 ].
>
> Now the while loop work fine.
>

I would think that this while loop would be touchy to use in a multi-vm
GemStone scenario since http requests would be delivered to a different vm,
unless you are using session affinity or a single gem ...

Dale
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