[JDEV] FW: jabberbeans

Sean McCullough banksean at yahoo.com
Wed Jul 14 16:34:03 CDT 1999


I was about to ask the very same questions!  first thing I tried was
moving the com.java.swing stuff over
to javax.swing and then I realized that the Channel/
Pipeline code wasn't functional so it was almost all
for naught.  Better not make this a Me Too message:

In addition to beanifying the Channel for low-level
communications, how about making some UI beans for
things like a Roster and a User object.  That will
make it easier for GUI builders to drop Jabber connections into
existing apps.

Another thing that may or may not be worthwhile is
replacing the homegrown xml parser with the free (feeless, that is) one
from javasoft.  It's bulkier definately, but it's got more features.  I
think
most of the necessary changes would be localized to
ProtocolBuilder.   Are there DTDs for anything in
the Jabber protocol?

-Sean McCullough

--- Patrick McCuller <patrick at kia.net> wrote:
> 
> 
> -----Original Message-----
> From: Michael T. Nygard
> [mailto:mtnygard at charter.net]
> Sent: Tuesday, July 13, 1999 11:39 PM
> To: Patrick McCuller
> Subject: Re: jabberbeans
> 
> 
> > Hi. Been going through JabberBean source for about
> four hours now,
> > figured a good way to start would be top-down:
> Build a rudimentary GUI
> > and make it work. Nothing more complicated than a
> connect and a login.
> 
> Great!  Glad to hear it!  I tend to work from the
> bottom up, since I'm not
> all that good with a GUI.  Having someone working
> from the top down will
> really help flesh things out.
> 
> > Well, as I'm sure you know, the connect went fine.
> 
> Good news.
> 
> > The state of the code seems to be that packet
> construction is
> > supported, and connection (only a small
> modification to enable the
> > connection receipt from the server to be retrieved
> and parsed was
> > neccessary). Sending packets and receiving them
> from an external (non
> > org.jabber.*) source isn't there. That I can see.
> >
> > I was hoping you could help me understand
> JabberBeans's design a
> > little. Class Channel is meant to abstract the
> connection to the Jabber
> > transport server, but its interface only seems to
> allow for connection and
> > disconnection. How will one extract and/or work
> with the packet pipeline?
> > There's no mechanism for this that I can find
> right now. Either I'm far
> > afield or it hasn't been implemented yet. If it
> has, please let me know
> > where :)
> 
> You're quite correct.  A Channel represents the
> connection, and will fire
> events to notify interested parties of changes in
> status.  It also acts as a
> facade for the packet pipeline.  It may be necessary
> to add the methods that
> will send and receive packets.  (To be honest, it's
> been a
> while since I looked at the code...things got crazy
> at work.)  I was working
> first on the pipeline, so it's likely that the
> Channel's API is not as
> mature.
> 
> > If it hasn't, what's the plan?
> 
> Well, feel completely free to dive in and make
> whatever changes or additions
> you like!  Please be sure to sign on to the project.
>  If you like it, and
> have more time to devote than I do, I'm even willing
> to turn stewardship of
> the project over.
> 
> > BTW, I appreciate the use of design patterns and
> automatic testing
> > support in the code. Nice work.
> 
> Thank you.  I always find a complete set of test
> cases to be a nice "safety
> harness," and I _never_ let my copy of GoF out of
> arm's reach!
> 
> > Patrick McCuller
> 
> Cheers,
> -Mike Nygard
> 
> 
> 

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