[SHACL API]

[Nensi Skenderi]

Hello, 

First I want to thank you about the amazing work on implementing this library.

I am currently working with Quadrant Shacl.

What I want to achieve is to be able to extract from the validation report the following:

1- the node

2- the triple

3- the constraint

in JSON format 

I was checking the code but I could not find a formatter. Do you know any solution about this?

Thanks a lot,

Nensi

[Holger Knublauch]

Hi Nensi,

the SHACL validation produces an RDF graph which we represent programmatically as a Jena Graph object (or Model). When you use the command line tool that graph would be serialised as Turtle. One way to turn such output into JSON would be re-save the Graph into JSON-LD format using the Jena API. However, the output may not be in the exact format that you’d like. An alternative is to run a SPARQL SELECT query over the result and use the SPARQL result format as output. Basically write a query that fetches the sh:focusNode, the sh:value and sh:sourceConstraintComponent of each validation result.

Not sure if this helps as I am not sure what experience you have, e.g. whether you rely on the command line of can write Java programs.

Holger

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[Nensi Skenderi]

Hi Holger,

Thanks for the fast reply and for the suggestion.

I am still learning and I will definitely try your idea.

Thanks again,

Regards,

Nensi