[jira] [Created] (JENA-1744) JSON-LD writing handles non-qname property URI badly.

["Andy Seaborne (Jira)" <ji...@apache.org>]

Andy Seaborne created JENA-1744:
-----------------------------------

             Summary: JSON-LD writing handles non-qname property URI badly.
                 Key: JENA-1744
                 URL: https://issues.apache.org/jira/browse/JENA-1744
             Project: Apache Jena
          Issue Type: Improvement
          Components: RIOT
    Affects Versions: Jena 3.12.0
            Reporter: Andy Seaborne
            Assignee: Andy Seaborne


Example Turtle file, no prefixes:

{noformat}
<http://somewhere/s1> <http://example/ns/(prop1)> "prop 1" .
<http://somewhere/s2> <http://example/ns/(prop2)> "prop 2" .
{noformat}

produces ({{riot --pretty JSONLD D.ttl}}) the JSON LD
{noformat}
{
  "@graph" : [ {
    "@id" : "http://somewhere/s1",
    "http://example/ns/(prop1)" : "prop 1"
  }, {
    "@id" : "http://somewhere/s2",
    "" : "prop 2"
  } ],
  "@context" : {
    "" : {
      "@id" : "http://example/ns/(prop2)"
    }
  }
}
{noformat}

which parses back to to the original RDF triples correctly.

However, the treatment of the two properties is asymmetric - one is context "" and one is full URI as "http://example/ns/(prop1)".

This can creat problems downstream if the JSON-LD is treated as JSON (the motivating case is ingesting into a BI-tool via it's JSON adapter).

This is because the [JSONLD writer (line 321)|https://github.com/apache/jena/blob/0dde76f777e55109a75db87c855bfc17e40c9d4a/jena-arq/src/main/java/org/apache/jena/riot/writer/JsonLDWriter.java#L321] uses "{{p.getLocalName()}}" to choose JSON-LD field name. In both cases it is "" because "()" are legal in a URI but not legal for an RDF qname localname. The XML-split is (full-URI, "").




--
This message was sent by Atlassian Jira
(v8.3.2#803003)