Re: [Bigdata-developers] Can't format SPARQL result with Turtle.

[Jerven B. <jer...@si...>]

The issue is that it is a SELECT query, which does not have an RDF output, 
which is why it can't give a turtle output. Only for CONSTRUCT and DESCRIBE 
queries can one normally get RDF output. 

Regards,
Jerven

On Saturday, July 1, 2017 5:01:08 AM CEST Bryan Thompson wrote:
> Conneg is handled here:
> https://github.com/blazegraph/database/blob/64bb8ca92eb063d45d68ec920a34b532
> 1b80e2fe/bigdata-core/bigdata-sails/src/java/com/bigdata/rdf/sail/webapp/Big
> dataRDFContext.java at around line 2470.  Not sure what is going on offhand.
>  Can you set a debugger on this and see what is happening?
> 
> } else {
> // Use whatever was specified by the client.
> final List<String> acceptHeaders =
> Collections.list(req.getHeaders("Accept")); acceptStr =
> ConnegUtil.getMimeTypeForQueryParameterQueryRequest(
> req.getParameter(BigdataRDFServlet.OUTPUT_FORMAT_QUERY_PARAMETER),
> acceptHeaders.toArray(new String[acceptHeaders.size()]));
> }
> 
> // Do conneg.
> final ConnegUtil util = new ConnegUtil(acceptStr);
> 
> On Fri, Jun 30, 2017 at 7:52 PM, Jason Koh <jb...@en...> wrote:
> > Thanks for the suggestion. I tried both with/without a space after the
> > colon, but both don't work.
> > (Space after the colon is a common practice:
> > https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html)
> > 
> > 
> > With regards,
> > Jason Koh
> > cseweb.ucsd.edu/~jbkoh
> > 
> > On Fri, Jun 30, 2017 at 7:48 PM, Bryan Thompson <br...@bl...>
> > 
> > wrote:
> >> Just looking at the wiki page.  Maybe it is the whitespace between the
> >> ":" and text/turtle?  The examples there do not have that whitespace.
> >> Pretty sure it is not part of the http header convention.
> >> 
> >> E.g., curl -X POST http://localhost:8080/bigdata/sparql
> >> --data-urlencode 'query=SELECT * { ?s ?p ?o } LIMIT 1' -H
> >> 'Accept:application/rdf+xml'
> >> 
> >> From the same wiki page.
> >> 
> >> Bryan
> >> 
> >> On Fri, Jun 30, 2017 at 5:52 PM, Jason Koh <jb...@en...> wrote:
> >> > I tried application/x-turtle also, which does work.
> >> > 
> >> > 
> >> > With regards,
> >> > Jason Koh
> >> > cseweb.ucsd.edu/~jbkoh
> >> > 
> >> > On Fri, Jun 30, 2017 at 5:26 PM, Jason Koh <jb...@en...> wrote:
> >> >> Btw, Build Version=2.1.4
> >> >> 
> >> >> 
> >> >> With regards,
> >> >> Jason Koh
> >> >> cseweb.ucsd.edu/~jbkoh
> >> >> 
> >> >> On Fri, Jun 30, 2017 at 5:09 PM, Jason Koh <jb...@en...> wrote:
> >> >>> Hi there,
> >> >>> 
> >> >>> Thanks for the great project. I am trying to use this for backend of
> >> >>> my
> >> >>> project. Though Blazegraph looks not that active for now, it is the
> >> >>> fastest
> >> >>> SPARQL endpoint in my experiences.
> >> >>> 
> >> >>> I am trying to parse my SPARQL query result with Turtle, but
> >> >>> Blazegraph
> >> >>> does not return Turtle format but OWL/XML format, that my library
> >> >>> cannot
> >> >>> parse. I specifically did following command:
> >> >>> curl -X POST http://localhost:9999/blazegraph/sparql --data-urlencode
> >> >>> 'query=<queryStr>' -H 'Accept: text/turtle'
> >> >>> I checked that this is correct:
> >> >>> https://jira.blazegraph.com/browse/BLZG-1689
> >> >>> but it only returns in OWL format.
> >> >>> 
> >> >>> Thanks in advance!
> >> >>> 
> >> >>> 
> >> >>> With regards,
> >> >>> Jason Koh
> >> >>> cseweb.ucsd.edu/~jbkoh
> >> > 
> >> > -----------------------------------------------------------------------
> >> > ------- Check out the vibrant tech community on one of the world's most
> >> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> >> > _______________________________________________
> >> > Bigdata-developers mailing list
> >> > Big...@li...
> >> > https://lists.sourceforge.net/lists/listinfo/bigdata-developers
> > 
> > --------------------------------------------------------------------------
> > ---- Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > _______________________________________________
> > Bigdata-developers mailing list
> > Big...@li...
> > https://lists.sourceforge.net/lists/listinfo/bigdata-developers
> 
> ----------------------------------------------------------------------------
> -- Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> Bigdata-developers mailing list
> Big...@li...
> https://lists.sourceforge.net/lists/listinfo/bigdata-developers