[jira] [Created] (JENA-1971) JSONLD compaction bug

["Erich Bremer (Jira)" <ji...@apache.org>]

Erich Bremer created JENA-1971:
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             Summary: JSONLD compaction bug
                 Key: JENA-1971
                 URL: https://issues.apache.org/jira/browse/JENA-1971
             Project: Apache Jena
          Issue Type: Bug
          Components: Jena
    Affects Versions: Jena 3.16.0
         Environment: The code and data used can be found at:

 

https://github.com/ebremer/jenabug/blob/master/src/main/java/com/demo/JSONLDBUG.java
            Reporter: Erich Bremer


Exporting this TTL from a Model:

 <http://me.com>  <http://zam.com/ns/cheesey> "WOW" .
#<http://me.com>  <http://zam.com/ns/cheesey>  ( "png" "jpg" "tif" "gif" ) .
<http://notme.com> <http://zam.com/ns/cheesey>  ( "png" "jpg" "tif" "gif" ) .
<http://www.twotowers.com/a>
        <http://shadowfax.com/ns/height>
                "262144"^^<http://www.w3.org/2001/XMLSchema#int> ;
        <http://shadowfax.com/ns/width>
                "262144"^^<http://www.w3.org/2001/XMLSchema#int> .

Yields the expected JSONLD:
{
  "@graph" : [ {
    "@id" : "http://me.com",
    "cheesey" : "WOW"
  }, {
    "@id" : "http://notme.com",
    "cheesey" : {
      "@list" : [ "png", "jpg", "tif", "gif" ]
    }
  }, {
    "@id" : "http://www.twotowers.com/a",
    "height" : "262144",
    "width" : "262144"
  } ],
  "@context" : {
    "rest" : {
      "@id" : "http://www.w3.org/1999/02/22-rdf-syntax-ns#rest",
      "@type" : "@id"
    },
    "first" : {
      "@id" : "http://www.w3.org/1999/02/22-rdf-syntax-ns#first"
    },
    "cheesey" : {
      "@id" : "http://zam.com/ns/cheesey"
    },
    "width" : {
      "@id" : "http://shadowfax.com/ns/width",
      "@type" : "http://www.w3.org/2001/XMLSchema#int"
    },
    "height" : {
      "@id" : "http://shadowfax.com/ns/height",
      "@type" : "http://www.w3.org/2001/XMLSchema#int"
    }
  }
}

However, removing the one comment in the TTL and adding an additional triple prevents the compaction of the property "cheesey" from being shortened:

{
  "@graph" : [ {
    "@id" : "http://me.com",
    "http://zam.com/ns/cheesey" : [ {
      "@list" : [ "png", "jpg", "tif", "gif" ]
    }, "WOW" ]
  }, {
    "@id" : "http://notme.com",
    "http://zam.com/ns/cheesey" : {
      "@list" : [ "png", "jpg", "tif", "gif" ]
    }
  }, {
    "@id" : "http://www.twotowers.com/a",
    "height" : "262144",
    "width" : "262144"
  } ],
  "@context" : {
    "rest" : {
      "@id" : "http://www.w3.org/1999/02/22-rdf-syntax-ns#rest",
      "@type" : "@id"
    },
    "first" : {
      "@id" : "http://www.w3.org/1999/02/22-rdf-syntax-ns#first"
    },
    "cheesey" : {
      "@id" : "http://zam.com/ns/cheesey",
      "@type" : "@id"
    },
    "width" : {
      "@id" : "http://shadowfax.com/ns/width",
      "@type" : "http://www.w3.org/2001/XMLSchema#int"
    },
    "height" : {
      "@id" : "http://shadowfax.com/ns/height",
      "@type" : "http://www.w3.org/2001/XMLSchema#int"
    }
  }
}




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