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https://issues.apache.org/jira/browse/JENA-198?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rob Vesse updated JENA-198:
---------------------------
Attachment: TSVIllegalOutput.patch
TSVIllegalInput.patch
Patches to fix both illegal input and output for TSV (allowing prefixed names
where they should be forbidden)
> TSV Output may be invalid but TSV Input reads it fine
> -----------------------------------------------------
>
> Key: JENA-198
> URL: https://issues.apache.org/jira/browse/JENA-198
> Project: Jena
> Issue Type: Bug
> Components: ARQ
> Affects Versions: ARQ 2.9.1
> Environment: Any
> Reporter: Rob Vesse
> Priority: Minor
> Labels: tsv
> Fix For: ARQ 2.9.1
>
> Attachments: TSVIllegalInput.patch, TSVIllegalOutput.patch
>
>
> I noticed today that TSVOutput may produce output that contains prefixed
> names which is invalid per my reading of the relevant specification -
> http://www.w3.org/TR/sparql11-results-csv-tsv/
> This is due to the fact that TSVOutput called FmtUtils.stringForNode() with
> only a Node resulting in it using the ARQ default prefix mapping for output.
> Attached is a simple patch which fixes the issue, it should also speed up
> TSVOutput marginally as the existing code requires a SerializationContext to
> be created for every term serialized and incurs the cost of trying to turn
> URIs into prefixed names. Essentially the patch creates a null
> SerializationContext variable and just passes that to every call to
> FmtUtils.stringForNode() so that the ARQ default prefix mapping never gets
> used.
> The second part of the issue is that this malformed TSV input may be accepted
> because TSVInputIterator uses NodeFactory.parseNode() to parse terms which
> calls SSE.parseNode() without any prefix mapping and thus internally ends up
> using the default SSE prefix mapping which means some prefixed names get
> permitted as valid when they should be rejected.
> The second patch attached fixes this part of the issue by keeping an empty
> static prefix map and calling SSE.parseNode() directly and passing in this
> map.
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