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From Florian MOGA <moga....@gmail.com>
Subject Re: Comet Sample on Google App Engine
Date Tue, 07 Sep 2010 21:24:36 GMT
Right, but the Channel API won't enable me to illustrate the comet abilities
we have in Tuscany so I'm trying to avoid it for the moment... From what
I've found on the internet, both Atmosphere and Jersey have made efforts in
the past to work with GAE so it might be a good thing asking their opinion
on these errors. I'll keep you posted on the updates.


On Wed, Sep 8, 2010 at 12:11 AM, Luciano Resende <luckbr1975@gmail.com>wrote:

> On Tue, Sep 7, 2010 at 1:17 PM, Florian MOGA <moga.flo@gmail.com> wrote:
> > It seems like Eclipse wasn't using latest snapshots from the local repo
> for
> > the deployment... Had more time to look on it today and managed to deploy
> it
> > succesfully. However, I encountered some restrictions on working with the
> > session but solved it quickly with an xml config in appengine-web.xml.
> > From what I can see, the app [0] seems to move very very slow and because
> of
> > that some NullPointerExceptions are being thrown as things don't get
> > properly initialized. I'll try and debug this further as it would be
> really
> > nice having a proof of concept in the cloud.
> > Florian
> >
> > [0] http://tuscany-comet.appspot.com/
> >
> >
>
> It seems that we are passed the Tuscany issues deploying the app, but
> does the library you are using and the functionality works in
> AppEngine ? I have seen couple of blog posts which describes issues
> related to long lived http connections and some limitations from GAE.
> Also, it seems that they have enabled some services to make similar
> functionality available [1] [2]
>
> Quote: " Channel API - The Channel API lets you build applications
> that can push content directly to your user’s browser (aka “Comet”).
> No more polling for updates! "
>
> [1]
> http://stackoverflow.com/questions/1285150/server-push-comet-in-google-app-engine-in-python
> [2]
> http://googleappengine.blogspot.com/2010/05/app-engine-at-google-io-2010.html
>
>
>
> --
> Luciano Resende
> http://people.apache.org/~lresende
> http://twitter.com/lresende1975
> http://lresende.blogspot.com/
>

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