Pascal-Nicolas Becker created JENA-663:
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Summary: DatasetGraphAccessorHTTP should prefer turtle or rdf+xml
instead of n-triples
Key: JENA-663
URL: https://issues.apache.org/jira/browse/JENA-663
Project: Apache Jena
Issue Type: Bug
Components: ARQ
Affects Versions: Jena 2.11.1
Reporter: Pascal-Nicolas Becker
If you load a graph using the SPARQL 1.1 Graph Store HTTP Protocol with the
class DatasetGraphAccessorHTTP used prefixes won't be loaded.
DatasetGraphAccessorHTTP.httpGet() and DatasetGraphAccessorHTTP.httpGet(String)
currently send
"application/n-triples,text/turtle;q=0.9,application/rdf+xml;q=0.8,application/xml;q=0.7"
as accept header. N-Triples doesn't support prefixes. If turtle or rdf/xml
were prefered instead of n-triples prefixes would be loaded.
DatasetGraphAccessorHTTP contains a private static method GetAcceptHeader
(https://github.com/apache/jena/commit/b396e7f7c90d81d953a556cb351d12f6e7751061#diff-37822a7826d74aa4063756e063be72f1L107).
This line should be changed. There is a comment in the source code pointing to
org.apache.jena.riot.WebContent.defaultGraphAcceptHeader which is already set
to prefer turtle.
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