[Mulgara-dev] Jena Model write in Mulgara

[Carlo Bernava]

maybe i have solved my problem...I've found in jena-project's site many
classes that work like a bridge Jena-Mulgare here the url:
https://jena.svn.sourceforge.net/svnroot/jena/JenaMulgara/  ...they are very
useful, and i'm using it in a .war file where i'm using jena libraries,
mulgara libraries and JenaMulgara package like a javaBean...



thanks for helps


Regardes
Carlo


2008/11/8 Life is hard, and then you die <ronald at innovation.ch>

> On Fri, Nov 07, 2008 at 07:27:36PM +0100, Carlo Bernava wrote:
> > mhmhm Yes my Jena system is accessible via HTTP (i'm usign JSP), but the
> > this isn't what i'm looking for...My Jena model is a big RDFXML created
> > dinamically...and there are many big rdf
> >
> > (i'm doing a social tagging system using scot onotlogy, so there are many
> > rdf, one for eache object, and every rdf have a property called TagCloud
> > where there are in many other sub-property #hasTag, moreover in each rdf
> > there are specification for each objcet of property #hasTag that describe
> > the frequency of a tag)
> >
> > So when i'm receive an http request to tag an object if there isn't an
> rdf
> > for the request object i must create it, so my jsp create a Model and i'm
> > looking for put this big RDFXML model into mulgara.
>
> Instead of trying to load an rdf/xml document directly you could also
> just generate a series of triples and use tql's 'insert' command (this
> is how we load all our data). If Jena can dump the model as N3 triples
> then the conversion to tql triples is fairly trivial (basically
> converting double-quotes to single-quotes around literals and removing
> the trailing '.'); another option is to write the rdf/xml to a buffer
> and use an xslt stylesheet to transform the rdf/xml to tql inserts
> (we've created one to do just this - see
>
> http://www.topazproject.org/trac/browser/head/plos/libs/article-util/src/main/resources/org/plos/article/util/RdfXmlToTriples.xslt?rev=4860)
>
>
>  Cheers,
>
>  Ronald
>
>
> > 2008/11/7 Paul Gearon <gearon at ieee.org>
> >
> > > Is your Jena system accessible via http? If so, then you could extract
> > > your data via a "create" command in a URL, and then make this URL the
> > > place you load your data from.
> > >
> > > I don't know the Jena way of doing this, but I suspect it is along the
> > > lines of:
> > >
> > >
> > >
> http://yourserver.com/sparql?query=create+%3Fs+%3Fp+%3Fo+where+%7B+%3Fs+%3Fp+%3Fo+%7D
> > >
> > > Once you have this URL, you can make it the source of a load command.
> > > So to create the graph and load data into it, the commands would be:
> > >
> > > create <http://mydomain.com/data#mydata>;
> > > load <
> > >
> http://yourserver.com/sparql?query=create+%3Fs+%3Fp+%3Fo+where+%7B+%3Fs+%3Fp+%3Fo+%7D
> > > >
> > > into <http://mydomain.com/data#mydata>;
> > >
> > > Does this answer the question?
> > >
> > > Regards,
> > > Paul
> > >
> > > On Fri, Nov 7, 2008 at 12:01 PM, Carlo Bernava <
> carlo.bernava at gmail.com>
> > > wrote:
> > > > Hi all,
> > > >
> > > > I have a little trouble with Jena and mulgara:
> > > >
> > > >
> > > > I have a JSP page where there is a function that create a model with
> Jena
> > > > API, this function create a model and "populate" it with many triple
> of
> > > > subject predicate and object.
> > > > When this model is created I want to insert it in a Mulgare Graph (
> like
> > > > ITQL command "load", to read a RDF file and put it in a graph)....how
> can
> > > i
> > > > do this?
> > > >
> > > >
> > > >
> > > > One way is to write the model in a RDF file (whit JENA
> > > > Model.write(OutputStreamWriter writer) )   and load it in Mulgara
> doing a
> > > > ITQL query whit a load command....but I'm sure there is another way
> more
> > > > efficient..
> > > >
> > > >
> > > > Thanks a lot for helps :)
> > > >
> > > >
> > > >
> > > > Carlo
> > > >
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