DBus and Java

[Joe Desbonnet]

I understand that the long term plan with Fedora is to expose all
system configuration information via DBus. Are there any Java bindings
for this yet?

Part of the reason I ask is I'm wondering what is (or will be) the
correct way to query locally installed RPMs.

Thanks,
Joe.

[Robin Green]

On Sun, 27 Mar 2005, Joe Desbonnet wrote:
> I understand that the long term plan with Fedora is to expose all
> system configuration information via DBus. Are there any Java bindings
> for this yet?
>
> Part of the reason I ask is I'm wondering what is (or will be) the
> correct way to query locally installed RPMs.

Can't you just use

Process p = Runtime.exec ("rpm -q " + packageName)
InputStream in = p.getInputStream ();
// Read query results from in

?

[Colin Walters]

On Sun, 2005-03-27 at 13:45 +0100, Joe Desbonnet wrote:
> I understand that the long term plan with Fedora is to expose all
> system configuration information via DBus.

I wouldn't say that, really.  I don't think anyone is going to make a
D-BUS service for exposing Apache configuration, for example.  That's
not to say it wouldn't be neat if it just happened, but I think it would
be of less value than some other things we could be spending time on.
> Are there any Java bindings
> for this yet?

Not yet, no.  The Java-GNOME people are working on it though:
http://lists.freedesktop.org/archives/dbus/2005-February/002180.html
> Part of the reason I ask is I'm wondering what is (or will be) the
> correct way to query locally installed RPMs.

I think Robin's correct; your best bet now is just to invoke rpm.
Alternatively there might be Java bindings to the librpm.

[Phil Shaw]

On 27 Mar 2005, at 8:03, Colin Walters wrote:
> > Part of the reason I ask is I'm wondering what is (or will be) the
> > correct way to query locally installed RPMs.
>
> I think Robin's correct; your best bet now is just to invoke rpm.
> Alternatively there might be Java bindings to the librpm.

I haven't used this, but found it by accident some time ago and 
bookmarked it. It might give the start you're after.

URL:http://jrpm.sourceforge.net/

[Robin Green]

On Sun, 27 Mar 2005, Phil Shaw wrote:
> I haven't used this, but found it by accident some time ago and
> bookmarked it. It might give the start you're after.
>
> URL:http://jrpm.sourceforge.net/

Also, I have hacked jrpm to support the rpm headers that older versions of 
yum use (newer versions use XML). Email me if you want that code.