NAME

XML::Atom::FromOWL - export RDF data to Atom

SYNOPSIS

 use LWP::UserAgent;
 use XML::Atom::OWL;
 use XML::Atom::FromOWL;
 
 my $ua       = LWP::UserAgent->new;
 my $r        = $ua->get('http://intertwingly.net/blog/index.atom');
 my $atomowl  = XML::Atom::OWL->new($r->decoded_content, $r->base);
 my $model    = $atomowl->consume->graph;  ## an RDF::Trine::Model
 
 my $exporter = XML::Atom::FromOWL->new;
 print $_->as_xml
	foreach $exporter->export_feeds($model);

DESCRIPTION

This module reads RDF and writes Atom feeds. It does the reverse of XML::Atom::OWL.

Constructor

• new(%options)

  Returns a new XML::Atom::FromOWL object.

  There are no valid options at the moment - the hash is reserved for future use.

Methods

• export_feeds($input, %options)

  Returns a list of feeds found in the input, in no particular order.

  The input may be a URI, file name, RDF::Trine::Model or anything else that can be handled by the rdf_parse method of RDF::TrineShortcuts.

  Each item in the list returned is an XML::Atom::Feed.

• export_feed($input, $subject, %options)

  As per export_feeds but exports just a single feed.

  The subject provided must be an RDF::Trine::Node::Blank or RDF::Trine::Node::Resource of type awol:Feed.

• export_entries($input, %options)

  Returns a list of entries found in the input, in no particular order.

  The input may be a URI, file name, RDF::Trine::Model or anything else that can be handled by the rdf_parse method of RDF::TrineShortcuts.

  Each item in the list returned is an XML::Atom::Entry.

• export_entry($input, $subject, %options)

  As per export_entry but exports just a single entry.

  The subject provided must be an RDF::Trine::Node::Blank or RDF::Trine::Node::Resource of type awol:Entry.

RDF Input

Input is expected to use AtomOwl http://bblfish.net/work/atom-owl/2006-06-06/#.

Feed Output

This module doesn't attempt to enforce many of OWL's semantic constraints (e.g. it doesn't enforce that an entry has only one title). It relies on XML::Atom::Feed and XML::Atom::Entry for that sort of thing, but if your input is sensible that shouldn't be a problem.

SEE ALSO

XML::Atom::OWL, HTML::Microformats, RDF::TrineShortcuts, XML::Atom::Feed, XML::Atom::Entry.

http://bblfish.net/work/atom-owl/2006-06-06/.

http://www.perlrdf.org/.

AUTHOR

Toby Inkster <tobyink@cpan.org>.

COPYRIGHT

Copyright 2011 Toby Inkster

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