James - dynamic configuration

[Peter Romianowski <an...@gmx.de>]

Hi there,

I already posted this to the users group for the discussion started there.
But now I think it's more a dev-thing...

thanks for the ideas. For my purpose the best choice would be writing a
matcher based on a database.
Here's a suggestion for other dynamic configuration:
For the applications which require dynamic configuration, I wrote some kind
of "configuration-framework".
This lets you use different configuration sources (properties-file,
database, xml or what ever) and has a built-in
reload-mechanism on specified events. For XML-configuration this event is
the file-modification. If such an event is fired all objects using the
configuration are notified (if they choose to listen for that event) and can
aply the new properties.
I am aware that there are situations where properties cannot be dynamic, but
mailetconfiguration should be no problem.
I think that at least dynamic mailet-configuration would boost the usability
and maintainability (is there such word? I'm just a german lamer... :-) of
JAMES, so I would like to see such things.
I don't know the general "masterplan" for the near future of JAMES, but if
others think that this feature may be useful and important I would discuss a
bit more about that. And of course I would help coding this feature...

greetz
Peter Romianowski

> -----Ursprüngliche Nachricht-----
> Von: Serge Knystautas [mailto:sergek@lokitech.com]
> Gesendet: Mittwoch, 8. August 2001 21:01
> An: james-user@jakarta.apache.org; antarapero@gmx.de
> Betreff: Re: Dynamic Configuration (at run time)
>
>
> Right now there's now way to do this at runtime.  We are partially hoping
> that Avalon will support reloading of the server app, but I was
> thinking we
> may go ahead and add this for just the mailets, since really we don't want
> the entire application to restart, just the mailet processing
> configuration.
> We'd have to take a custom class loader so we could reload these
> easily, and
> maybe at some point even support automatic compilation for
> changed classes,
> and other things that web application servers do.
>
> But like someone said, for forwarding you may just want to do it
> based on a
> database table (or file).
>
> Serge Knystautas
> Loki Technologies
> http://www.lokitech.com/
> ----- Original Message -----
> From: "Peter Romianowski" <an...@gmx.de>
> To: <ja...@jakarta.apache.org>
> Sent: Monday, August 06, 2001 10:49 AM
> Subject: Dynamic Configuration (at run time)
>
>
> > Hi there,
> >
> > for the application I write I need to construct a lot of mail aliases
> > (forwards) at runtime. I already set up aliases using the <mailet
> > match="RecipientIs=xyz@abc.com" class="Forward"> - thing. Works
> great. But
> > with this solution I hava to restart James in order to read the
> > configuration again.
> > Is there any way to add mailet-configuration at runtime?
> >
> > thanks,
> > pero
> >
> >
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> >
>
>
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