[rules-dev] drools and google app engine

[youknowwho at heroicefforts.net]

Lol.  Right now either interpretation sounds pretty good.

I haven't used GAE in a real scenario yet, so I hadn't considered the scaling implications.  Aggregate functionality across waves on a large scale would seem pretty difficult as you'd need some sort of backing store (BigTable I guess) and some mechanism for maintaining data consistency across the cluster.  Behavior applied to a single wave wouldn't seem to be a big deal if there were a mechanism to support pinning/routing.  I'd hope there wouldn't be a need to tightly couple to the GAE environment anyway.  Unfortunately, Google currently locks you into GAE for Wave extensions.  

Maybe by the time I've mastered Wave, GAE, and Fusion, Google will have released a  Google Service Bus with transparent routing.  :)


-----Original Message-----
From: "Michael Neale" <michael.neale at gmail.com>
Sent: Monday, October 26, 2009 12:11am
To: "Rules Dev List" <rules-dev at lists.jboss.org>
Subject: Re: [rules-dev] drools and google app engine

ROFL !

Yes, CEP == fusion == event processing.

I believe that Jess was proposing some CEP rules to process content of
waves in a "wave robot" - in google wave a robot can participate in
conversations, inject things etc.. translate etc...

So using rules and CEP for a stateful interaction would be interesting.
However, I don't think GAE would be great for that ?




On Mon, Oct 26, 2009 at 2:38 PM, Greg Barton <greg_barton at yahoo.com> wrote:
> Continual Employment Prospects.
>
> Or Complex Event Processing. :)
>
> GreG
>
> On Oct 25, 2009, at 22:04, Pradeep Pujari <Pradeepp at rocketmail.com> wrote:
>
> GAE stands for Google App Engine
>
> What is CEP means?
>
> Thanks,
> Pradeep
>
> --- On Sun, 10/25/09, Michael Neale <michael.neale at gmail.com> wrote:
>
> From: Michael Neale <michael.neale at gmail.com>
> Subject: Re: [rules-dev] drools and google app engine
> To: "Rules Dev List" <rules-dev at lists.jboss.org>
> Date: Sunday, October 25, 2009, 7:43 PM
> Hi Jess - I have experience with GAE
> - but never thought to try drools on it.
>
> Certainly should be possible - a few little tweaks might be
> needed to
> avoid verboten APIs. However, the main thing that "cramps
> its style"
> is the fact that apps on GAE really should be stateless (in
> order to
> scale) but I guess that if you can cope with a session
> suddenly moving
> then it might work out (or just use stateless rules).
>
>
> On Mon, Oct 26, 2009 at 1:31 PM,  <youknowwho at heroicefforts.net>
> wrote:
> I saw an earlier post where someone ran into file
> access issues deploying the Drools engine on Google's
> platform.  It seems like a relatively simple task to
> overcome this with an aspect and a weave.  But before I
> attempt it, I was curious if anyone had managed to get
> Drools running in the app engine environment?  If so, was
> that the only issue encountered and what was the level of
> effort?
>
> I was thinking it might be a fun learning exercise to
> leverage GAE and CEP in the creation of Google Wave Robots.
>  I know, I have too much time on my hands.
>
> cheers,
>
> -Jess
>
>
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> Michael D Neale
> home: www.michaelneale.net
> blog: michaelneale.blogspot.com
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-- 
Michael D Neale
home: www.michaelneale.net
blog: michaelneale.blogspot.com

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