[Zope3-Users] Using twisted spread client within zope

Stéphane Brault stephane_brault at yahoo.fr
Fri Jun 23 04:40:40 EDT 2006


Thanks David,
 that's what I inferred (not the details though ;-)). For now, as I have to 
 be quick, following your advice I'll use XML RPC. But for future implementation,
 I'll investigate further.
 
 Stéphane

----- Message d'origine ----
De : David Pratt <fairwinds at eastlink.ca>
À : Stéphane Brault <stephane_brault at yahoo.fr>
Cc : user-list zope <zope3-users at zope.org>
Envoyé le : Jeudi, 22 Juin 2006, 8h41mn 34s
Objet : Re: Re : [Zope3-Users] Using twisted spread client within zope

Hi Stephane. It is possible to use a spread client in zope. That said, I 
am not sure whether you are attempting to integrate the new pb 
(unstable) or currently stable pb. Either way, I cannot provide code for 
you but say that this is not trivial. It also requires conforming zope 
storages to interact with. Your methods need to interact with the zope's 
storages if you want zope to do its thing properly.

This adds significantly to the complexity since the storage internals of 
zope take some time to learn and significant time to understand well 
enough to modify and construct storages. Once you have tested a suitable 
client server, you will also need to modify zope's startup to include 
your client service as part of zope's multiservice.

My advice to you is that you may be better off with a web service since 
this can be configured easily in zope since you are not involving the 
storage layer directly. It is just part of you app.

Regards,
David

Stéphane Brault wrote:
> Hi again,
>  in order to call my twisted process I need to run the spread client within Zope,
>  is this possible (maybe through a utility). I'm not sure this would integrate well
>  with Zope mainly because of the twisted logic (deferred, ...), but I might be wrong
>  (this wouldn't be the first time ;-)). Has someone had any experience with that ?
>  
>  Thanks,
>  
>  Stéphane
> 
> ----- Message d'origine ----
> De : Stéphane Brault <stephane_brault at yahoo.fr>
> À : user-list zope <zope3-users at zope.org>
> Envoyé le : Mardi, 20 Juin 2006, 12h59mn 22s
> Objet : [Zope3-Users] Using twisted spread client within zope
> 
> Hi,
>  for my application I have to communicate with external web services,
>  these communications have to be scheduled. That is why I use twisted processes
>  to communicate with external servers and zope for the GUI side.
>  I need to communicate from zope to the twisted processes, has anyone
>  done that, especially with spread, or do I need to go through http ?
>  
>  Thanks,
>  
>  Stéphane
> 
> 
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