Well you can do the same with SPARQL CONSTRUCT, as CSV2RDF shows.
It can be done with JSON of course, but to us it made no sense to
write yet another interpreter for yet another syntax when we a
perfectly fine transformation language already.
On Mon, Jan 14, 2019 at 8:54 AM Miika Alonen <miika.alo...@csc.fi> wrote:
>
> Thanks!
>
> Feels like yesterday. At the time i was hoping to find some library that
> would read the csvw-json as input though. For example library that would
> generate the rdf from the "tree-ops.csv" file given the json description:
>
> {
> "url": "tree-ops.csv",
> "@context": ["http://www.w3.org/ns/csvw";, {"@language": "en"}],
> "tableSchema": {
> "columns": [{
> "name": "GID",
> "titles": "GID",
> "datatype": "string",
> "propertyUrl": "schema:url",
> "valueUrl": "#gid-{GID}"
> }, {
> "name": "species",
> "titles": "Species",
> "datatype": "string",
> "propertyUrl": "schema:name"
> }
> ...
> }
>
> Best Regards,
> Miika Alonen
>
> CSC - IT Center for Science
> miika.alo...@csc.fi
>
> ----- Original Message -----
> From: "Martynas Jusevičius" <marty...@atomgraph.com>
> To: "users" <users@jena.apache.org>
> Sent: Sunday, 13 January, 2019 01:44:35
> Subject: Re: csvw java implementations?
>
> Hi Miika,
>
> a few years too late :)
>
> We have recently published https://github.com/AtomGraph/CSV2RDF -- a
> streaming, transforming CSV to RDF converter based on Jena and
> univocity CSV parser.
>
> Not sure this is exactly what you were looking for. So far we've used
> it to generate up to 25 million triples, which took minutes.
>
> The Jena dependency is pretty old (3.0.1), which I can't upgrade right
> now because other code depends on CSV2RDF. But the codebase is really
> small, so it shouldn't be a problem to fork and bump it up.
>
> Hope this helps.
>
> Martynas
> atomgraph.com
>
> On Mon, May 15, 2017 at 9:57 AM Miika Alonen <miika.alo...@csc.fi> wrote:
> >
> > Hi all!
> >
> > There's a lot of various csv to rdf implementations out there, but are
> > there any existing csvw [1] java/jena implementations? It would be nice to
> > have csv->rdf->csv tranformation [2] in jena using the csvw json
> > descriptions. If there isnt any existing implementations, what existing csv
> > libraries or projects could be reused to add that support?
> >
> > [1] https://www.w3.org/TR/tabular-metadata/
> > [2] https://www.w3.org/TR/csv2rdf/
> >
> > Best Regards,
> > Miika Alonen
> >
> > CSC - IT Center for Science
> > miika.alo...@csc.fi
