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https://issues.apache.org/jira/browse/JENA-2344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17577416#comment-17577416
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Andy Seaborne commented on JENA-2344:
-------------------------------------
If you set the prefixes in the data, then the JSON-LD writer will use those for
the context where legal.
{noformat}
PREFIX foo:
<https://smart-data-models.github.io/data-models/terms.jsonld#/definitions/>
[]
<https://smart-data-models.github.io/data-models/terms.jsonld#/definitions/category>
'meter' .
{noformat}
gives:
{noformat}
{
"@id": "_:b0",
"foo:category": "meter",
"@context": {
"foo":
"https://smart-data-models.github.io/data-models/terms.jsonld#/definitions/";
}
}
{noformat}
We also have an issue awaiting contribution:
[https://github.com/apache/jena/issues/1386]
> Invalid JSON-LD context generated for CONSTRUCT query
> -----------------------------------------------------
>
> Key: JENA-2344
> URL: https://issues.apache.org/jira/browse/JENA-2344
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ, Fuseki, JSON-LD
> Affects Versions: Jena 4.1.0, Jena 4.5.0
> Reporter: Stefan Bischof
> Priority: Major
>
> For URIs having a slash / in the fragment identifier an invalid JSON-LD
> context is generated.
>
> Steps to reproduce:
> # Add a triple with with a slash in the fragment identifier to some graph,
> e.g., "[]
> <[https://smart-data-models.github.io/data-models/terms.jsonld#/definitions/category]>
> "meter" .
> # Retrieve the triple in a CONSTRUCT query, e.g., CONSTRUCT WHERE \{ ?s ?p
> ?o }
> # Set "Accept" header in HTTP call or "Content-Type (Graph)" in Fuseki WebUI
> # The context at the end of the response includes the invalid key
> "/definitions/category"
> {
> "@id" : "_:b0",
> "/definitions/category" : "meter",
> "@context" : {
> "/definitions/category" : {
> "@id" :
> "https://smart-data-models.github.io/data-models/terms.jsonld#/definitions/category";
> }
> }
> }
>
> Although I couldn't find a formal grammar for JSON-LD, the python parser I
> used and the parser on the JSON-LD playground
> [https://json-ld.org/playground/] did not accept this: jsonld.SyntaxError:
> Invalid JSON-LD syntax; term in form of IRI must expand to definition.
> I could replicate the same behaviour on the cli with ARQ 4.5.0.
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