NAME

Catmandu::RDF - Modules for handling RDF data within the Catmandu framework

STATUS

SYNOPSIS

Command line client catmandu:

catmandu convert RDF --url http://dx.doi.org/10.2474/trol.7.147
                     --fix 'aref_query(dct_title,title)' to YAML

catmandu convert RDF --file rdfdump.ttl to RDF --type turtle

# For big file the only efficient option to convert RDF is by
# transforming the input stream into triples and writing to NTriples
# in the output
catmandu convert convert RDF --triples 1 --type ttl to RDF --type NTriples < rdfdump.ttl

See documentation of modules for more examples.

DESCRIPTION

Catmandu::RDF contains modules for handling RDF data within the Catmandu framework. RDF data is encoded/decoded in aREF as implemented with RDF::aREF. Please keep in mind that RDF is a graph-based data structuring format with specialized technologies such as SPARQL and triple stores. Using Catmandu::RDF to transform RDF to RDF (e.g. conversion from one RDF serialization to another) is possible but probably less performant than decent RDF tools. Catmandu::RDF, however, is more conventient to convert between RDF and other data formats.

AVAILABLE MODULES

• Catmandu::Exporter::RDF

  Serialize RDF data (as RDF/XML, RDF/JSON, Turtle, NTriples, RDFa...)

• Catmandu::Importer::RDF

  Parse RDF data (RDF/XML, RDF/JSON, Turtle, NTriples...) or import from a SPARQL endpoint

• Catmandu::Fix::aref_query

  Copy values of RDF data in aREF format to a new field

SEE ALSO

This module is based on Catmandu, RDF::aREF, RDF::Trine, and RDF::NS.

COPYRIGHT AND LICENSE

Copyright Jakob Voß, 2014-

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

CONTRIBUTORS

Jakob Voß, Patrick Hochstenbach