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RE: Prowler vs. Jetspeed [was: Prowler-Pre-Release]
thanks for your comparison between Infozone/Prowler and Jetspeed. And *sorry*
for the long delay. We were totally busy with setting up the new Infozone site.
We had to do this as quickly as possible to create a single source of
information about Infozone. Now the site is up and I hope you will help us by
contributing your knowledge about Cocoon/Jetspeed and maybe other things.
Yes, Prowler, the CMS component of Infozone, deals with 'local' resources like
XML repositories or EJB servers rather than newsfeeds or things like that.
However, although is in pre-alpha stage, Prowler already includes a mail Content
Adapter that allows to integrate the content of a mail server or mailboxes. In
the architecture diagram of Infozone
(http://infozone-group.org/infozone_main.html) Jetspeed is shown as a possible
front-end of Infozone. Do you think this makes sense?
On Thu, 18 May 2000, Neeme Praks wrote:
> I'll post this also to Jetspeed list, then others can correct me if I'm
> mistaken about something concerning Jetspeed.
> The thread started in Ozone users list, who is interested, you can check
> the previous messages in the archive:
> > -----Original Message-----
> > From: Falko Braeutigam [mailto:firstname.lastname@example.org]
> > Sent: Thursday, May 18, 2000 9:52 AM
> > I didn't really check Jetspeed but their web site says that
> > "Jetspeed attempts
> > to consume information from multiple resources on the
> > Internet and helps the
> > user manage large amounts of data. This information can come
> > from multiple
> > content types..." To me this seemed to be comparable to the
> > Prowler purpose.
> > It seems that you are more familiar with Jetspeed, Neeme. So
> > what are the
> > differences between Jetspeed and Prowler?
> well, I'm not a Jetspeed expert either, but I'll give my thoughts on the
> difference between these two projects.
> >From one side, Jetspeed is about retrieving content from the internet
> and presenting this to the user in a concise, "portal-like" way. For
> example, Jetspeed uses RSS to get various kinds of newsfeeds all over
> the Internet (currently ~1700 RSS sources?). Then the user can subscribe
> to the news he/she likes the most and can access this information on
> Jetspeed portal page.
> On a more general level, Jetspeed is just a framework for building
> portals: you can develop you own applications or "portlets" in Jetspeed
> terminology that the users can subscribe to. These "portlets" are
> presented in like small "windows" in your browser. Jetspeed takes care
> of the "window-management", user subscription information management,
> etc. So the developer can concentrate on developing these small
> "portlets" that snap into the Jetspeed environment.
> These portlets can be whatever kind of applications:
> * they can be RSS portlets, as presented above
> * they can be Cocoon applications, like XSP portlets
> * they can be simple Java classes
> * etc... plug in your favorite development technology here (and write
> the wrapper for Jetspeed :-)
> Now Prowler. As I understood, Prowler is an API for accessing different
> kinds of "local" resources like "ozoneXML, simple file store, maybe
> others" and "mail server, EJB server, SQL, whatever". And as I
> understood, you have developed an XSP taglib for this API; so, it can be
> used to develop XSP portlets in Jetspeed.
> This is what I mean by using Jetspeed with Prowler, not instead of
> Actually, Prowler and OzoneXML could be used in Jetspeed also, as there
> was some time ago a discussion, were should the user information and
> portlet registry be stored. Right now the choice was plain file system
> for the sake of simplicity, but I think Ozone XML repository would be
> much more appropriate for this. So, Prowler could be used to access
> either the file system or any other data source without worrying where
> the data is actually stored. Abstracting Jetspeed from the specifics of
> the medium of storage. I'm not familiar with Prowler that much, I might
> just as well be dreaming ;-)
> Of course, this brings up the question, should there be yet another
> product bundled with Jetspeed?
Falko Braeutigam mailto:email@example.com
softwarebuero m&b (SMB) http://www.softwarebuero.de