https://github.com/phochste/rdf-ldf

Perl Linked Data Fragments client
https://github.com/phochste/rdf-ldf

Last synced: 3 months ago
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Perl Linked Data Fragments client

• Host: GitHub
• URL: https://github.com/phochste/rdf-ldf
• Owner: phochste
• License: other
• Created: 2015-02-19T09:38:06.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2021-06-18T06:08:28.000Z (over 3 years ago)
• Last Synced: 2024-10-15T13:21:28.989Z (3 months ago)
• Language: Perl
• Size: 163 KB
• Stars: 4
• Watchers: 5
• Forks: 4
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • Changelog: Changes
  • License: LICENSE

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README

        
# NAME

RDF::LDF - Linked Data Fragments client

# STATUS

[![Build Status](https://travis-ci.org/phochste/RDF-LDF.svg)](https://travis-ci.org/phochste/RDF-LDF)

[![Coverage Status](https://coveralls.io/repos/phochste/RDF-LDF/badge.svg)](https://coveralls.io/r/phochste/RDF-LDF)

[![Kwalitee Score](http://cpants.cpanauthors.org/dist/RDF-LDF.png)](http://cpants.cpanauthors.org/dist/RDF-LDF)

# SYNOPSIS

    use RDF::Trine::Store::LDF;

    use RDF::Trine::Store;

    # To use a HTTP cache:

    use LWP::UserAgent::CHICaching;

    my $cache = CHI->new( driver => 'Memory', global => 1 );

    my $ua = LWP::UserAgent::CHICaching->new(cache => $cache);

    RDF::Trine->default_useragent($ua);

    my $store = RDF::Trine::Store->new_with_config({

            storetype => 'LDF',

            url => $url

    });

    my $it = $store->get_statements();

    while (my $st = $it->next) {

        # $st is a RDF::Trine::Statement

        print "$st\n";

    }

    # Or the low level modules themselves

    use RDF::LDF;

    my $client = RDF::LDF->new(url => 'http://fragments.dbpedia.org/2014/en');

    my $iterator = $client->get_statements($subject, $predicate, $object);

    while (my $statement = $iterator->()) {

        # $model is a RDF::Trine::Statement

    }

# DESCRIPTION

RDF::LDF implements a basic [Linked Data Fragment](http://linkeddatafragments.org/) client.

This a low level module to implement the Linked Data Fragment protocol. You probably want to

use [RDF::Trine::Store::LDF](https://metacpan.org/pod/RDF%3A%3ATrine%3A%3AStore%3A%3ALDF).

# CONFIGURATION

- url

    URL to retrieve RDF from.

    Experimental: more than one URL can be provided for federated search over many LDF endpoints.

        my $store = RDF::Trine::Store->new_with_config({

                storetype => 'LDF',

                url => [ $url1, $url2, $url3 ]

        });

        # or

        my $client = RDF::LDF->new(url => [ $url1, $url2, $url3 ]);

# METHODS

- get\_statements( $subject, $predicate, $object )

    Return an iterator for every RDF::Trine::Statement served by the LDF server.

- get\_pattern( $bgp );

    Returns a stream object of all bindings matching the specified graph pattern.

# CONTRIBUTORS

Patrick Hochstenbach, `patrick.hochstenbach at ugent.be`

Gregory Todd Williams, `[email protected]`

Jacob Voss, `[email protected]`

# COPYRIGHT AND LICENSE

This software is copyright (c) 2015 by Patrick Hochstenbach.

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