XML::Atom::FromOWL(3) 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 "parse" function of RDF::TrineX::Functions.

    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 "parse" function of RDF::TrineX::Functions.

    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.

AUTHOR

Toby Inkster <[email protected]>.

COPYRIGHT AND LICENCE

This software is copyright (c) 2011-2012 by Toby Inkster.

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

DISCLAIMER OF WARRANTIES

THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

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