Re: [Tracker] Result of GetMetadata DBUS Method

[Nikolaus Rath <Nikolaus rath org>]

Adrien Bustany <abustany-rDKQcyrBJuzYtjvyW6yDsg public gmane org> writes:
> > > > In tracker 0.8.17, an example result of the GetMetadata DBUS
> > > > method is
> > > >
> > > > Âa nfo:PaginatedTextDocument ;
> > > > Â Â Â Â nie:title "SV Meldung" ;
> > > > Â Â Â Â nco:creator [ a nco:Contact ;
> > > > Â Â Â Â nco:fullname "nikratio"] ;
> > > > Â Â Â Â nie:contentCreated "2011-08-10T20:12:38Z" ;
> > > > Â Â Â Â nao:hasTag [ a nao:Tag ;
> > > > Â Â Â Â nao:prefLabel "()"] ;
> > > > Â Â Â Â dc:format "application/pdf" ;
> > > > Â Â Â Â nie:description "()" ;
> > > > Â Â Â Â nfo:pageCount 1 ;
> > > > Â Â Â Â nie:plainTextContent "blablabla" .
> > > >
> > > > With tracker 0.10.21, however, the same document now gives
> > > >
> > > > Âa nfo:PaginatedTextDocument ;
> > > > Â Â Â Â nie:title "SV Meldung" ;
> > > > Â Â Â Â nco:creator [ a nco:Contact ;
> > > > Â Â Â Â nco:fullname "nikratio"] ;
> > > > Â Â Â Â nie:contentCreated "2011-08-10T20:12:38Z" ;
> > > > Â Â Â Â dc:format "application/pdf" ;
> > > > Â Â Â Â nie:description "()" ;
> > > > Â Â Â Â nao:hasTag ?tag1 ;
> > > > Â Â Â Â nfo:pageCount 1 ;
> > > > Â Â Â Â nie:plainTextContent "blablabla" .
> > > > } } WHERE { {
> > > > ?tag1 a nao:Tag ; nao:prefLabel "()" .
> > > >
> > > >
> > > > I don't know enough about the syntax used here, so I won't claim
> > > > that it's wrong. However, rdflib fails to parse this and thus
> > > > breaks my application.
> > > >
> > > > Can someone tell me if this is a bug in tracker or in rdflib?
> > >
> > > Could you share the error message that rdflib gives you?
> >
> > Sure, it's at http://code.google.com/p/rdflib/issues/detail?id=190
>
> Most likely rdflib doesn't like the fact that the WHERE of the INSERT
> is not closed?

rdflib actually tries to parse this as Turtle RDF. But unless I'm
reading the specs wrong, Turtle does not have a WHERE, so am I right to
assume that GetMetadata has been changed to no longer return valid
Turtle RDF, but partial SPARQL statements?

If so, this makes it very hard to use GetMetadata() for anything else
but tracker. Is there any way to get something that's easier to parse
from tracker-extract?


Thanks,

   -Nikolaus

-- 
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