Re: HTTP requests, databases and how to transmit SHACL validation reports

On 08/06/2020 08:58, Håvard Ottestad wrote:
> Hi,
> 
> Following up after a test of Stardog.
> 
> It seems that they use the following header to indicate a validation error:
> SD-Error-Code: TXHRE2
> 
> I guess SD stands for Stardog.
> 
> They also return json and don't respect the Accept header.
> 
> A question for you Andy. Does Fuseki support SHACL in such a way as to 
> cancel a transaction if committing it would violate the shapes?

Not yet in Fuseki; it is in the "plan". It does exist in the codebase, 
but isn't accessible in Fuseki yet without loading custom code.

     Andy

> 
> Cheers,
> Håvard
> 
> 
> On Fri, Jun 5, 2020 at 7:40 AM <lars.svensson@web.de 
> <mailto:lars.svensson@web.de>> wrote:
> 
>     On Freitag, 05. Juni 2020 um 01:24 Uhr, "Andy Seaborne"
>     <andy@apache.org <mailto:andy@apache.org>> wrote:
>     [...]
> 
>      > > I don’t see how a SHACL validation violation would produce
>     anything other than a SHACL validation report.
>      > >
>      > > My initial thought was a custom header and standard mime type.
>      >
>      > Vladimir has mentioned profiles:
>      >
>      > https://www.w3.org/TR/dx-prof-conneg/
>      >
>      > which look like a progressive approach.
> 
>     [Disclaimer: I'm one of the editors of that document]
> 
>     Yes, this is exactly what profiles are for. What's needed is a URI
>     that identifies a document as a SHACL validation report
>     _irrespective of the media type_ (i.e it's orthogonal to the fact
>     that it's turtle or RDF/XML or any other syntax).
> 
>      > So I see there are choices to consider before making a de-facto
>      > registration (a CG can't formally register a MIME type).
> 
>     Can a CG can write a note defining URIs for SHACL profiles? I guess
>     there would be two of them, one for shape definition documents (or
>     rather "this document contains (among other things) shape
>     definitions" and one for SHACL validation reports.
> 
>     And (this one's for Andy): Is profiles something you could consider
>     adding to Jena?
> 
>     Best,
> 
>     Lars
>

Received on Wednesday, 10 June 2020 14:47:41 UTC