[JENA-2145] shaclc serialization of datatypes should be shorter

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Vladimir Alexiev
• Created: 09/Aug/21 13:19
• Updated: 09/Aug/21 18:17

Description

https://github.com/euBusinessGraph/eubg-data/blob/master/model/ebg-shapes.shaclc includes the following:

  skos:altLabel            xsd:string|rdf:langString !pattern="^ | $| {2}" [0..*] .

This is output more verbosely as:

    skos:altLabel ! pattern="^ | $| {2}" datatype=xsd:string | datatype=rdf:langString .

The shorter notation is allowed according to https://w3c.github.io/shacl/shacl-compact-syntax/#rule-propertyType:
"propertyType: If ?iri is one of the RDF datatypes supported by SPARQL 1.1 (such as xsd:string) then produce a triple ?property sh:datatype ?iri, otherwise ?property sh:class ?iri."

Jena already checks whether the IRI is a known datatype and otherwise outputs "class=". So it should be a simple matter to implement the shorter notation.

Issue Links

• is related to: JENA-2144 shaclc serializer should output "nodeKind"