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From "Paolo Castagna (Commented) (JIRA)" <>
Subject [jira] [Commented] (ANY23-18) Add a new extractor for RDFa using java-rdfa
Date Sun, 15 Jan 2012 16:53:39 GMT


Paolo Castagna commented on ANY23-18:

Ciao Michele, what are the problems you found with java-rdfa?
There is an open issue for java-rdfa to add RDFa 1.1 support (
In any case, good to see the XSLT replaced by a new programmatic RDFa extractor.
> Add a new extractor for RDFa using java-rdfa
> --------------------------------------------
>                 Key: ANY23-18
>                 URL:
>             Project: Apache Any23
>          Issue Type: Improvement
>            Reporter: Paolo Castagna
>            Assignee: Michele Mostarda
>            Priority: Minor
>              Labels: rdfa
>   Original Estimate: 8h
>  Remaining Estimate: 8h
> I wonder if it is possible to add a new RDFa extractor which uses java-rdfa [1].
> java-rdfa is (according to its creator, Damian Steer :-)) "the cruftiest RDFa parser
in the world" (and he is probably right!). java-rdfa is currently passing all conformance
tests for XHTML, and the HTML 4 and 5 tests with one exception [2]. An online service|demo
[3] is also available. java-rdfa, as far as I understand, is currently licensed with a BSD
license. The Maven artifacts are available in the Maven central repository [4].
> From my little understanding of Any23, in order to do this one needs to implement BlindExtractor
(which extends Extractor<URI>) and ContentExtractor (which extends Extractor<InputStream>).
> See also: [5].
>  [1]
>  [2]
>  [3]
>  [4]
>  [5]

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