Re: [Xmpppy-devel] roster/presence question

[Norman R. <no...@ra...>]

You could call client.getRoster() on connect (and don't store it's return
value anywhere), and then use client.Roster from your presence handler.

On Tue, Sep 14, 2010 at 5:26 PM, David Gregory
<da...@en...>wrote:

>  I’m trying to get my client UI respond to presence updates.  Seems easy.
> Set up presence and iq handlers and track them.
>
> But you end up repeating all the work that the roster has done already in
> its own presence and iq handlers.
>
>
>
> It would be better to be notified when the roster has been updated for a
> particular contact, so then I can go grab all of the item info and pass it
> on to my client.  I don’t see this mechanism in place – only the ability to
> hook into the same raw presence and iq updates that the roster receives.
>
>
>
> I’ve tried several workarounds so I don’t have to modify XMPPPY.
>
>
>
> I’ve tried to cache the roster ptr after I retrieve it on connect, and then
> look up into it in my own presence handler when any updates are received.
> The problem with this is – there is a period of time during which the
> presence updates I receive will not have a cached roster ptr to look up into
> – because the “getRoster” method hasn’t returned yet.  It means that my
> “show”, “status” and other information is not correct during client connect,
> until I receive the next presence update for each person.
>
>
>
> If, instead of caching the roster ptr, I actually call client.getRoster()
> in my presence handler and then access the items that way, I will crash/have
> a problem where the initial roster is still being pulled, and that
> “Process(10)” call is blocking (in roster.py).
>
>
>
> Has anyone figured out a way to reliably access the roster at *any* time,
> as the code is now?
>
>
>
> Seems like my fallback is to add a callback mechanism to roster.py to
> notify me when a contact is updated, and pass “self” to the caller so he can
> peek back at the roster item, and then pass it on.
>
>
>
> -Dave
>
>
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-- 
- Norman Rasmussen
 - Email: no...@ra...
 - Home page: http://norman.rasmussen.co.za/