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  1. Apache Commons RDF
  2. COMMONSRDF-55

Stream of Jena quads use wrong IRI for default graph

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    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.3.0
    • Fix Version/s: 0.5.0
    • Component/s: jena
    • Labels:
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      Description

      See https://travis-ci.org/apache/commons-rdf/builds/195548479

      org.apache.commons.rdf.jena.DatasetJenaTest
      streamLanguageTagsCaseInsensitive(org.apache.commons.rdf.jena.DatasetJenaTest)  Time elapsed: 0.012 sec  <<< FAILURE!
      java.lang.AssertionError: expected:<<http://example.com/s1> <http://example.com/greeting> "Hello"@EN-GB <urn:x-arq:DefaultGraph>.> but was:<<http://example.com/s1> <http://example.com/greeting> "Hello"@en-GB .>
      

      Jena uses the IRI `<urn:x-arq:DefaultGraph>` internally to represent the default graph within datasets - we need to recognize that on the way out of a `JenaDatasetImpl.stream()` and possibly in the `asQuad(JenaQuad)` converter and replace it with `Optional.empty()` so the default graph appears the same across implementations.

      The `AbstractDatasetTest` should be augmented to do more tests on the default graph, including `.stream()`, `.iterate()`, `.contains()` and `.remove()`1.

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              • Assignee:
                stain Stian Soiland-Reyes
                Reporter:
                stain Stian Soiland-Reyes
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