[Building Sakai] Worksite InstaChat

[Stephen Marquard]

I had in mind more the changes to the REST and service code that may be required to enable a floating chat feature. But maybe create one for the overall feature and a subtask or related JIRA for the REST changes necessary to enable it.

Cheers
Stephen

>>> Adrian Fish <a.fish at lancaster.ac.uk> 12/7/2009 12:40 PM >>>
Hi Stephen,

Thanks for the info, I'll look into the listener approach. When you say 
'a JIRA', do you mean a request for a floating chat feature?

Cheers,

Adrian.

Stephen Marquard wrote:
> Hi Adrian,
>
> Chat currently uses a very efficient message queue per listener for new messages. If you replace that with a method to get all messages since a particular timestamp, you will increase the database traffic and possibly run into scaling problems, plus you might run into some timing and/or race-condition issues.
>
> You should probably look at reusing the existing mechanisms by registering a listener and then requesting all new messages for that listener.
>
> Is there a JIRA for this?
>
> Regards
> Stephen
>
>   
>>>> Adrian Fish <a.fish at lancaster.ac.uk> 12/7/2009 12:02 PM >>>
>>>>         
> Hi All,
>
> I need some help.
>
> I'm working on a dead simple html and javascript addition to site.vm, or 
> alternatively via sakai:htmlInclude 
> (http://jira.sakaiproject.org/browse/SAK-15097) that pops up a floating 
> chat window independent of the other Sakai tools. The chat window posts 
> new messages to the current worksite's default channel via a slightly 
> hacked version of ChatMessageEntityProvider, so all messages also get 
> rendered in the default chat tool. The idea is similar to Chuck's hab.la 
> integration efforts, but uses Sakai's chat apis.
>
> I'm at the point now where I need to add a another path to the chat rest 
> interface. I need a method whereby I can request all chat messages for 
> the default room posted since a supplied timestamp, so I can use ajax to 
> update the floating panel. Can anybody give me any pointers as to where 
> to start?
>
> Many thanks,
>
> Adrian.
>
>   

-- 
==================================
Adrian Fish
Software Engineer
Centre for e-Science
Bowland Tower South C Floor
Lancaster University
Lancaster
LA1 4YW
email: a.fish at lancaster.ac.uk 

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