[Nepomuk] SPARQL construct queries in Soprano with Virtuoso

[Sebastian Trüg]

I tried the query here and I got a graph. Could you monitor stderr for
error messages, please?

On 05/06/2010 11:41 AM, Ilkka Laukkanen wrote:
> On Thu, May 6, 2010 at 10:48 AM, Sebastian Trüg <trueg at kde.org> wrote:
>> you are not doing anything wrong. Virtuoso returns graph query results
>> as blobs of turtle encoded rdf. Soprano tries to parse the data and then
> 
> Ah, that definitely explains a lot.
> 
> 
>> Thus, my first question: is the Soprano raptor parser plugin installed?
>> BTW: If not, there should be an error message about that on the console
>> when you try to open the iterator.
> 
> As a matter of fact it is, and it seems like Soprano is finding it
> just fine: a quick strace shows that it manages to stat() it after a
> bit of searching. However it never seems to open() the plugin .so
> file, which seems kind of strange. It does open() libraptor.so.1
> though.
> 
> 
>