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Re: [Libvir] Re: Documentation on the xml format



On Fri, Dec 28, 2007 at 01:53:49PM +0100, Daniel Schwager wrote:
> Hi Rich,
> 
> >Unfortunately this level of detail is only in the source, and usually 
> >depends on the backend (Xen/QEMU/whatever).
> >
> >If you'd like to help document these sorts of issues, then we'd welcome 
> >patches.  The source for this page is in libvirt CVS doc/ directory.
> >
> >http://libvirt.org/format.html
> 
> I want extend the java-libvirt implementation based on the code of
> István Tóth. Therefore, I created a XSD file (XML description file).
> This could be a base for the XML-documentation.
> 
> Should I post it ?

  Definitely !
There is just a problem with XSD, basically we use the type attribute value
on the top domain element to differenciate the various hypervisors 
supported and XSD is unable to validate one content model or another
based on such value. Basically you will be restricted to only one possible
content model per element in your schemas, so you will have to build
an union description. I have tried (to some extend) in the Relax-NG one
to describe the differences between the content models in type='xen'
and type='kvm' in the Schemas to allow for a more precise validation.
I tend to think it's a bit more useful to try to complete and reactualize
the RNG one. Then maybe James Clark converter tool (don't remember the 
name offhand trand or something similar) will be able to provide an
XSD (or even a DTD) usable by other tools.

> One more question: Is there a changelist for the libvirt API between 0.3.2 and 0.4 ?
> The code based on 0.3.2 ...

  Hum, not really, there is the changelog in the http://libvirt.org/news.html
but this is not exactly an API change description.

  thanks,

Daniel

-- 
Red Hat Virtualization group http://redhat.com/virtualization/
Daniel Veillard      | virtualization library  http://libvirt.org/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine  http://rpmfind.net/


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