Implementing wikidata SERVICE label syntax

[D063520]

Hi,

did someone ever tried to implement the SERVICE wikibase:label syntax? It is widely used in Wikidata and it might be interesting for other projects too. I refer more explicitly to:

SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }

Salut
D063520

[kenwenzel]

This is possible by implementing the FederatedService interface.

We use federated services, for example, to query time series data with SPARQL: https://github.com/linkedfactory/linkedfactory-pod/blob/c0feec58a38fa891cd385dfff6e908e21ba94627/bundles/io.github.linkedfactory.service/src/main/scala/io/github/linkedfactory/service/rdf4j/KvinFederatedService.java#L24

[D063520]

For reference, wikidata pointed me to this code which should be the actual implementation in blazegraph:

https://github.com/wikimedia/wikidata-query-rdf/tree/master/blazegraph/src/main/java/org/wikidata/query/rdf/blazegraph/label/

[JervenBolleman]

Careful, this code is likely to be GPL2 and needs an author of that code to accept integration into the RDF4j project.