Catmandu-RDF-0.28 000755 001750 001750 0 12625307401 12367 5 ustar 00voj voj 000000 000000 README 100644 001750 001750 3166 12625307401 13336 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 NAME
Catmandu::RDF - Modules for handling RDF data within the Catmandu
framework
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.nt to RDF --type turtle
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.
Changes 100644 001750 001750 4047 12625307401 13750 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 Changelog for Catmandu-RDF
0.28 2015-11-25 11:35:42 CET
- streaming export in NTriples format by default (issue #25)
0.27 2015-05-30 14:15:45 CEST
- added sparql file option (issue #19)
0.26 2015-05-21 10:38:12 CEST
- added support of Linked Data Fragments
0.25 2015-03-27 13:53:59 CET
- support streaming of NTriple data
0.24 2015-03-09 13:20:23 CET
- added support of SPARQL
- fixed some unit tests
- rewrote aref_query fix
0.23 2014-12-11 16:41:22 CET
- fix bnode mapping bug
- simplify calling syntax of aref_query fix
0.22 2014-12-11 15:01:15 CET
- align with RDF::aREF 0.22, new options predicate_map
0.20 2014-12-10 15:13:40 CET
- tried to fix import from URL encoding (issue #9)
0.19 2014-12-10 14:17:59 CET
- add triples importer mode (issue #5)
- disable namespaces with ns=0 (issue #8)
- support importing from string reference
0.18 2014-10-14 12:53:01 CEST
- add field _url on import from url (issue #9)
- started fix function aref_query
0.17 2014-10-02 14:26:35 CEST
- Migrate to Dist::Milla
- Adjust to aREF 0.19
0.15 2014-07-17T11:35:04
- document and test count method
- started importer
0.14 2014-01-22T07:18:56
- internally use RDF::Trine::Model
- bug detected (issue #3?)
- use RDF::aREF 0.09
0.13 2014-01-15T12:15:56
- Merge release
- use RDF::aREF 0.08
0.12 2014-01-12T16:39:03
- release 0.12 with fixed dependencies
- update dependencies
- fixed dist.ini
- fixed dependency
0.11 2013-12-02T14:17:01
- documentation
- fixed cpanfile
- don't test ob Perl 5.10
- split RDF::aREF as independent module
0.10 2013-11-15T11:18:20
- started to support nested input documents
- renamed aRef to aREF
0.09 2013-11-13T14:29:24
- migrated from RDF/JSON to aRef
- fix link
0.03 2013-09-20T12:42:10
- auto-expand prefixed object-uris
- support 'a' as shortcut for 'rdf:type'
- extended documentation
- implemented basic Exporter
- support a subset of JSON-LD
- use dzil and travis
0.02 2013-09-06T09:14:51
- documentation
0.01 2013-09-05T09:39:00
- basic RDF Exporter
- first draft
t 000755 001750 001750 0 12625307401 12553 5 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 url.t 100644 001750 001750 6646 12625307401 13716 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t use strict;
use warnings;
use open ':std', ':encoding(utf8)';
use Test::More;
use Catmandu -all;
use Catmandu::RDF;
use RDF::Trine;
use Encode;
use HTTP::Response;
use Test::LWP::UserAgent;
use utf8;
RDF::Trine->default_useragent(user_agent());
{
note("importing turtle");
my $importer = importer('RDF', url => 'http://www.w3.org/TR/examples/example1.ttl', type => 'turtle');
my $aref = $importer->first;
is $aref->{'http://www.w3.org/TR/rdf-syntax-grammar'}->{dc_title},
'RDF/XML Syntax Specification (Revised)@', 'Import from URL';
}
{
note("importing rdf/xml");
my $importer = importer('RDF', url => 'http://www.w3.org/TR/examples/example2.rdf', type => 'xml');
my $aref = $importer->first;
is $aref->{'http://www.w3.org/TR/rdf-syntax-grammar'}->{dc_title},
'RDF/XML Syntax Specification (Revised)@', 'Import from URL';
}
{
note("importing NTriples");
my $importer = importer('RDF', url => 'http://www.w3.org/TR/examples/example3.nt', type => 'NTriples');
my $aref = $importer->first;
is $aref->{'http://www.w3.org/TR/rdf-syntax-grammar'}->{dc_title},
'RDF/XML Syntax Specification (Revised)@', 'Import from URL';
}
done_testing;
sub user_agent {
my $ua = Test::LWP::UserAgent->new( agent => "Catmandu::RDF/$Catmandu::RDF::VERSION" );
my $example =< .
\@prefix dc: .
\@prefix ex: .
dc:title "RDF/XML Syntax Specification (Revised)" ;
ex:editor [
ex:fullname "Dave Beckett";
ex:homePage
] .
EOF
add_response(
$ua,
'http://www.w3.org/TR/examples/example1.ttl',
'text/turtle; charset=utf-8',
$example
);
my $example2 =<
EOF
add_response(
$ua,
'http://www.w3.org/TR/examples/example2.rdf',
'application/rdf+xml; charset=utf-8',
$example2
);
my $example3 =< "RDF/XML Syntax Specification (Revised)".
_:b1 .
_:b1 "Dave Beckett" .
_:b1 .
EOF
add_response(
$ua,
'http://www.w3.org/TR/examples/example3.nt',
'text/plain; charset=utf-8',
$example3
);
return $ua;
}
sub add_response {
my $ua = shift;
my $url = shift;
my $content_type = shift;
my $content = shift;
$ua->map_response(
qr{^\Q$url\E$},
HTTP::Response->new(
'200',
'OK',
['Content-Type' => $content_type ],
Encode::encode_utf8($content)
)
);
}
LICENSE 100644 001750 001750 43617 12625307401 13510 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 This software is copyright (c) 2014- by -.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
Terms of the Perl programming language system itself
a) the GNU General Public License as published by the Free
Software Foundation; either version 1, or (at your option) any
later version, or
b) the "Artistic License"
--- The GNU General Public License, Version 1, February 1989 ---
This software is Copyright (c) 2014- by -.
This is free software, licensed under:
The GNU General Public License, Version 1, February 1989
GNU GENERAL PUBLIC LICENSE
Version 1, February 1989
Copyright (C) 1989 Free Software Foundation, Inc.
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Everyone is permitted to copy and distribute verbatim copies
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The End
cpanfile 100644 001750 001750 510 12625307401 14130 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 requires 'perl', 'v5.13.1';
requires 'Catmandu', '0.9209';
requires 'RDF::LDF', '0.10';
requires 'RDF::NS', '20140910';
requires 'RDF::Query', '2.913';
requires 'RDF::Trine', '1.013';
requires 'RDF::aREF', '0.25';
test_requires 'Test::More', '0.99';
test_requires 'Test::LWP::UserAgent', '0.025';
test_requires 'Encode', '0';
dist.ini 100644 001750 001750 33 12625307401 14050 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 author=Jakob Voß
[@Milla]
Build.PL 100644 001750 001750 261 12625307401 13723 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 # This Build.PL for Catmandu-RDF was generated by Dist::Zilla::Plugin::ModuleBuildTiny 0.010.
use strict;
use warnings;
use v5.13.1;
use Module::Build::Tiny 0.039;
Build_PL();
META.yml 100644 001750 001750 2017 12625307401 13721 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 ---
abstract: 'Modules for handling RDF data within the Catmandu framework'
author:
- 'Jakob Voß'
build_requires:
Encode: '0'
Test::LWP::UserAgent: '0.025'
Test::More: '0.99'
configure_requires:
Module::Build::Tiny: '0.039'
dynamic_config: 0
generated_by: 'Dist::Zilla version 5.036, Dist::Milla version v1.0.15, CPAN::Meta::Converter version 2.150001'
license: perl
meta-spec:
url: http://module-build.sourceforge.net/META-spec-v1.4.html
version: '1.4'
name: Catmandu-RDF
no_index:
directory:
- t
- xt
- inc
- share
- eg
- examples
requires:
Catmandu: '0.9209'
RDF::LDF: '0.10'
RDF::NS: '20140910'
RDF::Query: '2.913'
RDF::Trine: '1.013'
RDF::aREF: '0.25'
perl: v5.13.1
resources:
bugtracker: https://github.com/LibreCat/Catmandu-RDF/issues
homepage: https://github.com/LibreCat/Catmandu-RDF
repository: https://github.com/LibreCat/Catmandu-RDF.git
version: '0.28'
x_contributors:
- 'Jakob Voß '
- 'Patrick Hochstenbach '
MANIFEST 100644 001750 001750 665 12625307401 13570 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 # This file was automatically generated by Dist::Zilla::Plugin::Manifest v5.036.
Build.PL
Changes
LICENSE
MANIFEST
META.json
META.yml
README
cpanfile
dist.ini
lib/Catmandu/Exporter/RDF.pm
lib/Catmandu/Fix/aref_query.pm
lib/Catmandu/Importer/RDF.pm
lib/Catmandu/RDF.pm
t/aref_query.t
t/example.rdf
t/example.ttl
t/example.yml
t/exporter-add.t
t/exporter.t
t/importer.t
t/issue-3.t
t/query.sparql
t/release-pod-syntax.t
t/sparql.t
t/url.t
META.json 100644 001750 001750 3545 12625307401 14100 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28 {
"abstract" : "Modules for handling RDF data within the Catmandu framework",
"author" : [
"Jakob Voß"
],
"dynamic_config" : 0,
"generated_by" : "Dist::Zilla version 5.036, Dist::Milla version v1.0.15, CPAN::Meta::Converter version 2.150001",
"license" : [
"perl_5"
],
"meta-spec" : {
"url" : "http://search.cpan.org/perldoc?CPAN::Meta::Spec",
"version" : "2"
},
"name" : "Catmandu-RDF",
"no_index" : {
"directory" : [
"t",
"xt",
"inc",
"share",
"eg",
"examples"
]
},
"prereqs" : {
"configure" : {
"requires" : {
"Module::Build::Tiny" : "0.039"
}
},
"develop" : {
"requires" : {
"Dist::Milla" : "v1.0.15",
"Test::Pod" : "1.41"
}
},
"runtime" : {
"requires" : {
"Catmandu" : "0.9209",
"RDF::LDF" : "0.10",
"RDF::NS" : "20140910",
"RDF::Query" : "2.913",
"RDF::Trine" : "1.013",
"RDF::aREF" : "0.25",
"perl" : "v5.13.1"
}
},
"test" : {
"requires" : {
"Encode" : "0",
"Test::LWP::UserAgent" : "0.025",
"Test::More" : "0.99"
}
}
},
"release_status" : "stable",
"resources" : {
"bugtracker" : {
"web" : "https://github.com/LibreCat/Catmandu-RDF/issues"
},
"homepage" : "https://github.com/LibreCat/Catmandu-RDF",
"repository" : {
"type" : "git",
"url" : "https://github.com/LibreCat/Catmandu-RDF.git",
"web" : "https://github.com/LibreCat/Catmandu-RDF"
}
},
"version" : "0.28",
"x_contributors" : [
"Jakob Voß ",
"Patrick Hochstenbach "
]
}
sparql.t 100644 001750 001750 27325 12625307401 14433 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t use strict;
use warnings;
use open ':std', ':encoding(utf8)';
use Test::More;
use Catmandu -all;
use Catmandu::RDF;
use RDF::Trine;
use Encode;
use HTTP::Response;
use Test::LWP::UserAgent;
use utf8;
RDF::Trine->default_useragent(user_agent());
{
note("importing from sparql endpoint");
my $sparql =<
SELECT * WHERE { ?book dc:title ?title . }
END
my $url = 'http://sparql.org/books/sparql';
my $importer = importer('RDF', url => $url, sparql => $sparql);
is $importer->sparql, $sparql, "SPARQL";
$importer = importer('RDF', url => $url,
sparql => "SELECT * WHERE { ?book dc:title ?title . }\n");
is $importer->sparql, $sparql, "SPARQL, PREFIX added";
my $ref = $importer->first;
ok $ref->{title} , 'got a title';
ok $ref->{book} , 'got a book';
}
{
note("importing from ldf endpoint");
my $sparql =< }
EOF
my $url = 'http://fragments.dbpedia.org/2014/en';
my $importer = importer('RDF', url => $url, sparql => $sparql);
my $ref = $importer->first;
ok $ref->{film} , 'got a film';
}
{
note("importing from ldf endpoint (utf8)");
my $url = 'http://fragments.dbpedia.org/2014/en';
my $importer = importer('RDF', url => $url, sparql => 't/query.sparql');
my $ref = $importer->first;
ok $ref->{name} , 'got a name (file sparql)';
like $ref->{name} , qr/François Schuiten/ , 'utf8 test';
}
done_testing;
sub user_agent {
my $ua = Test::LWP::UserAgent->new( agent => "Catmandu::RDF/${Catmandu::RDF::VERSION}" );
my $example =<
http://example.org/book/book7
Harry Potter and the Deathly Hallows
EOF
add_response(
$ua,
'http://sparql.org/books/sparql?query=PREFIX%20dc%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Felements%2F1.1%2F%3E%0ASELECT%20%2A%20WHERE%20%7B%20%3Fbook%20dc%3Atitle%20%3Ftitle%20.%20%7D%0A',
'application/sparql-results+xml; charset=utf-8',
$example
);
my $example2 =<.
\@prefix rdfs: .
\@prefix xsd: .
\@prefix dc: .
\@prefix foaf: .
\@prefix dbpedia: .
\@prefix dbpedia-owl: .
\@prefix dbpprop: .
\@prefix hydra: .
\@prefix void: .
hydra:member .
a void:Dataset, hydra:Collection;
void:subset ;
void:uriLookupEndpoint "http://fragments.dbpedia.org/2014/en{?subject,predicate,object}";
hydra:search _:triplePattern.
_:triplePattern hydra:template "http://fragments.dbpedia.org/2014/en{?subject,predicate,object}";
hydra:mapping _:subject, _:predicate, _:object.
_:subject hydra:variable "subject";
hydra:property rdf:subject.
_:predicate hydra:variable "predicate";
hydra:property rdf:predicate.
_:object hydra:variable "object";
hydra:property rdf:object.
, , .
"literal1", "literalA", "literalB", "literalC";
, .
"literal2".
void:subset ;
a hydra:Collection, hydra:PagedCollection;
dc:title "Linked Data Fragment of Test"\@en;
dc:description "Triple Pattern Fragment of the 'Test' dataset containing triples matching the pattern { ?s ?p ?o }."\@en;
dc:source ;
hydra:totalItems "10"^^xsd:integer;
void:triples "10"^^xsd:integer;
hydra:itemsPerPage "100"^^xsd:integer;
hydra:firstPage .
EOF
add_response(
$ua,
'http://fragments.dbpedia.org/2014/en',
'text/turtle; charset=utf-8',
$example2
);
my $example2b =<.
\@prefix rdfs: .
\@prefix owl: .
\@prefix skos: .
\@prefix xsd: .
\@prefix dc: .
\@prefix dcterms: .
\@prefix dc11: .
\@prefix foaf: .
\@prefix geo: .
\@prefix dbpedia: .
\@prefix dbpedia-owl: .
\@prefix dbpprop: .
\@prefix hydra: .
\@prefix void: .
hydra:member .
a void:Dataset, hydra:Collection;
void:subset , ;
void:uriLookupEndpoint "http://fragments.dbpedia.org/2014/en{?subject,predicate,object}";
hydra:search _:triplePattern.
_:triplePattern hydra:template "http://fragments.dbpedia.org/2014/en{?subject,predicate,object}";
hydra:mapping _:subject, _:predicate, _:object.
_:subject hydra:variable "subject";
hydra:property rdf:subject.
_:predicate hydra:variable "predicate";
hydra:property rdf:predicate.
_:object hydra:variable "object";
hydra:property rdf:object.
dcterms:subject .
void:subset .
a hydra:Collection, hydra:PagedCollection;
dcterms:title "Linked Data Fragment of DBpedia 2014"\@en;
dcterms:description "Triple Pattern Fragment of the 'DBpedia 2014' dataset containing triples matching the pattern { ?s }."\@en;
dcterms:source ;
hydra:totalItems "1"^^xsd:integer;
void:triples "1"^^xsd:integer;
hydra:itemsPerPage "100"^^xsd:integer;
hydra:firstPage ;
hydra:nextPage .
EOF
add_response(
$ua,
'http://fragments.dbpedia.org/2014/en?predicate=http%3A%2F%2Fpurl.org%2Fdc%2Fterms%2Fsubject&object=http%3A%2F%2Fdbpedia.org%2Fresource%2FCategory%3AFrench_films',
'text/turtle; charset=utf-8',
$example2b
);
my $example3=<.
\@prefix rdfs: .
\@prefix owl: .
\@prefix skos: .
\@prefix xsd: .
\@prefix dc: .
\@prefix dcterms: .
\@prefix dc11: .
\@prefix foaf: .
\@prefix geo: .
\@prefix dbpedia: .
\@prefix dbpedia-owl: .
\@prefix dbpprop: .
\@prefix hydra: .
\@prefix void: .
hydra:member .
a void:Dataset, hydra:Collection;
void:subset ;
void:uriLookupEndpoint "http://fragments.dbpedia.org/2014/en{?subject,predicate,object}";
hydra:search _:triplePattern.
_:triplePattern hydra:template "http://fragments.dbpedia.org/2014/en{?subject,predicate,object}";
hydra:mapping _:subject, _:predicate, _:object.
_:subject hydra:variable "subject";
hydra:property rdf:subject.
_:predicate hydra:variable "predicate";
hydra:property rdf:predicate.
_:object hydra:variable "object";
hydra:property rdf:object.
rdfs:label "François Schuiten"\@de, "François Schuiten"\@en, "François Schuiten"\@es, "François Schuiten"\@fr, "François Schuiten"\@it, "François Schuiten"\@nl, "フランソワ・スクイテン"\@ja.
void:subset ;
a hydra:Collection, hydra:PagedCollection;
dcterms:title "Linked Data Fragment of DBpedia 2014"\@en;
dcterms:description "Triple Pattern Fragment of the 'DBpedia 2014' dataset containing triples matching the pattern { ?o }."\@en;
dcterms:source ;
hydra:totalItems "7"^^xsd:integer;
void:triples "7"^^xsd:integer;
hydra:itemsPerPage "100"^^xsd:integer;
hydra:firstPage
EOF
add_response(
$ua,
'http://fragments.dbpedia.org/2014/en?subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FFran%C3%A7ois_Schuiten&predicate=http%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23label',
'text/turtle; charset=utf-8',
$example3
);
return $ua;
}
sub add_response {
my $ua = shift;
my $url = shift;
my $content_type = shift;
my $content = shift;
$ua->map_response(
qr{^\Q$url\E$},
HTTP::Response->new(
'200',
'OK',
['Content-Type' => $content_type ],
Encode::encode_utf8($content)
)
);
} issue-3.t 100644 001750 001750 1341 12625307401 14367 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t use strict;
use warnings;
use Test::More;
use Catmandu::Exporter::RDF;
my $turtle;
my $exporter = Catmandu::Exporter::RDF->new(file => \$turtle, type => 'ttl');
my @arefs = (
{
"http://x.org/alice" => { "foaf_knows" => "" },
"http://x.org/bob" => { "a" => "foaf_Person", }
},
{
"http://x.org/alice" => { "foaf_knows" => "" },
}
);
$exporter->add($_) for @arefs;
$exporter->commit;
$turtle =~ s/ \./ ;/smg;
is_deeply [ sort split "\n", $turtle ], [
' , ;',
' a ;'
];
print $turtle;
done_testing;
exporter.t 100644 001750 001750 3073 12625307401 14753 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t use strict;
use warnings;
use Test::More;
my $pkg;
BEGIN { use_ok $pkg = 'Catmandu::Exporter::RDF'; }
require_ok $pkg;
my $file = "";
my $data = { # example copied from RDF::Trine::Model
"http://example.com/subject1" => {
"http://example.com/predicate1" => [
'Foo@en',
"Bar^"
],
},
"_:bnode1" => {
"http://example.com/predicate2" => [
"http://example.com/object2",
],
"http://example.com/predicate2" => [
"_:bnode3",
],
},
};
my $exporter = $pkg->new(file => \$file, type => 'ttl');
isa_ok $exporter, $pkg;
is $exporter->count, 0, 'count is zero';
$exporter->add($data);
$exporter->commit;
# normalize
$file =~ s/("Foo".+), ("Bar".+) ./$2, $1 ./;
$file = join "\n", sort split "\n", "$file";
$file .= "\n" unless $file =~ /\n$/m;
is $file, <<'RDF', 'serialize Turtle';
"Bar"^^, "Foo"@en .
[] [] .
RDF
is $exporter->count, 1, 'count is always one';
$file = "";
$exporter = $pkg->new(file => \$file);
$exporter->add( { _id => '', foaf_knows => { foaf_name => 'alice' } } );
is $file, < _:b1 .
_:b1 "alice" .
NTRIPLES
$exporter->add( { _id => '', foaf_knows => { foaf_name => 'alice' } } );
$exporter->commit;
is scalar(split "\n", $file), 4, 'keep blank nodes separated';
is $exporter->count, 2, 'count is 2';
done_testing;
importer.t 100644 001750 001750 4107 12625307401 14743 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t use strict;
use warnings;
use Test::More;
use Catmandu -all;
my $pkg;
BEGIN { use_ok $pkg = 'Catmandu::Importer::RDF'; }
require_ok $pkg;
isa_ok $pkg->new, $pkg;
my $aref = importer('YAML', file => 't/example.yml')->first;
my $expect = {
'http://example.org' => {
a => '',
'http://example.org/foo' => "b\x{e4}r\@en",
'http://purl.org/dc/elements/1.1/title' => "B\x{c4}R@",
'http://purl.org/dc/elements/1.1/extent' =>
'42^',
}
};
is_deeply importer('RDF', ns => 0, file => 't/example.ttl')->first,
$expect, 'disable namespace prefixes';
foreach my $file (qw(t/example.ttl t/example.rdf)) {
is_deeply importer('RDF', file => $file, ns => 1)->first,
$aref, "default namespace prefixes ($file)";
}
{
use utf8;
my $ttl = ' "bär"@en .';
my $importer = importer('RDF', type => 'turtle', file => \$ttl);
my $aref = $importer->first;
is_deeply $aref->{'http://example.org'}->{'http://example.org/foo'},
'bär@en', 'import from scalar with Unicode';
}
{
my $importer = importer('RDF', file => 't/example.ttl', triples => 1, predicate_map => 1);
my $aref = $importer->to_array;
is_deeply [
sort {
my (undef,$x) = sort keys %$a;
my (undef,$y) = sort keys %$b;
$x cmp $y
} @$aref
], [
{ _id => 'http://example.org', a => 'rdfs_Resource' },
{ _id => 'http://example.org', dc_extent => '42^xs_integer' },
{ _id => 'http://example.org', dc_title => "B\x{c4}R@" },
{ _id => 'http://example.org', 'http://example.org/foo' => "b\x{e4}r\@en" }
], 'import triples';
my $nt = "";
my $exporter = exporter('RDF', type => 'ntriples', file => \$nt);
$exporter->add_many($aref);
$exporter->commit;
$importer = importer('RDF', type => 'ntriples', file => \$nt, ns => 0);
is_deeply $importer->first, $expect, 'round-trip export-import-export';
}
done_testing;
example.rdf 100644 001750 001750 1460 12625307401 15044 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t
bär
BÄR
42
example.ttl 100644 001750 001750 362 12625307401 15054 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t @prefix rdfs: .
a rdfs:Resource ;
"b\u00e4r"@en ;
"B\u00c4R" ;
42 .
example.yml 100644 001750 001750 212 12625307401 15044 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t ---
'http://example.org':
a: rdfs_Resource
dc_title: BÄR@
dc_extent: 42^xs_integer
'http://example.org/foo': bär@en
...
aref_query.t 100644 001750 001750 1630 12625307401 15242 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t use strict;
use warnings;
use Test::More;
use Catmandu ':all';
use Catmandu::Fix;
use Catmandu::Fix::aref_query as => 'my_query';
{
my $fixer = Catmandu::Fix->new( fixes => ['aref_query(dc_title,title)'] );
my $rdf = importer('RDF', file => 't/example.ttl')->first;
($rdf->{_uri}) = keys %$rdf;
$fixer->fix($rdf);
delete $rdf->{ $rdf->{_uri} };
is_deeply $rdf, {
'_uri' => 'http://example.org',
title => "B\x{c4}R",
}, 'simple RDF fix';
}
my $rdf = importer('RDF', file => 't/example.ttl')->first;
sub fix {
my $rdf = shift;
my_query($rdf, @_);
delete $rdf->{$_[-1]};
}
is fix($rdf,'http://example.org','dc_title','label'), "B\x{c4}R";
is fix($rdf,'dc_title','label'), undef;
$rdf->{_url} = 'http://example.org';
is fix($rdf,'dc_title','label'), "B\x{c4}R", 'respect _url field';
is fix($rdf,'http://example.com','dc_title','label'), undef;
done_testing;
query.sparql 100644 001750 001750 200 12625307401 15254 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t SELECT ?name WHERE {
?name .
}
exporter-add.t 100644 001750 001750 5554 12625307401 15507 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t use strict;
use warnings;
use Test::More;
use Catmandu::Exporter::RDF;
sub check_add(@) { ## no critic
my $options = shift;
my $data = shift;
my $result = shift;
my $file = "";
my $exporter = Catmandu::Exporter::RDF->new(file => \$file, %$options);
$exporter->add($data);
$exporter->commit;
if (ref $result) {
$result->($file);
} else {
is $file, $result, $_[0];
}
}
check_add { type => 'ttl', ns => '20130816' }, {
_id => 'http://example.org/',
dc_title => 'Subject',
} => " \"Subject\" .\n",
'expand predicate URI';
check_add { type => 'ttl', ns => '20130816' }, {
_id => 'http://example.org/',
dc_title => 'Subject@',
} => " \"Subject\" .\n",
'literal object';
check_add { type => 'ttl', ns => '20130816' }, {
_id => 'http://example.org/',
dct_extent => '42^xsd_integer',
} => " 42 .\n",
'literal object with datatype';
check_add { type => 'ttl', ns => '20130816' }, {
_id => 'http://example.org/',
'http://example.org/predicate' => { '_id' => 'http://example.com/object' },
} => " .\n",
'uri object';
check_add { type => 'ttl', ns => '20130816' }, {
_id => 'http://example.org/',
a => 'foaf_Organization',
} => " a .\n",
'"a" for rdf:type';
=todo
check_add { type => 'ttl', ns => '20130816' }, {
'_id' => 'http://example.org/',
'http://example.org/predicate' => { },
} => " _:b1 .\n",
'blank node object';
=cut
check_add { type => 'ttl', ns => '20130816' }, {
_id => 'http://www.gbv.de/',
geo_location => {
geo_lat => '9.93492',
geo_long => '51.5393710',
}
} => sub {
my $ttl = shift;
ok $ttl =~ qr{_:[a-zA-Z0-9]+ "9.93492"}
&& $ttl =~ qr{ "51.5393710"}
&& $ttl =~ qr{ _:[a-zA-Z0-9]+},
'nested RDF';
};
## fixes
check_add { type => 'ttl', ns => '20130816',
fix => ["move_field('_id','\_id')","prepend('\_id','http://example.org/');"]
}, {
_id => 123,
dc_title => 'Foo',
} => " \"Foo\" .\n",
'fix subject URI';
check_add { type => 'ttl', ns => '20130816',
fix => [
"append('dc:extent','^xsd:integer');"
]
}, {
_id => 'http://example.org/',
dc_extent => 42,
} => " \"42\" .\n",
'fix predicate';
done_testing;
Catmandu 000755 001750 001750 0 12625307401 14612 5 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/lib RDF.pm 100644 001750 001750 5236 12625307401 15731 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/lib/Catmandu package Catmandu::RDF;
use namespace::clean;
use Catmandu::Sane;
use Catmandu::Util qw(is_instance);
use Moo::Role;
use RDF::NS;
our $VERSION = '0.28';
our %TYPE_ALIAS = (
Ttl => 'Turtle',
N3 => 'Notation3',
Xml => 'RDFXML',
XML => 'RDFXML',
Json => 'RDFJSON',
);
has type => (
is => 'ro',
coerce => sub { my $t = ucfirst($_[0]); $TYPE_ALIAS{$t} // $t },
);
has ns => (
is => 'ro',
default => sub { RDF::NS->new },
coerce => sub {
return $_[0] if is_instance($_[0],'RDF::NS');
return $_[0] if !$_[0];
return RDF::NS->new($_[0]);
},
handles => ['uri'],
);
1;
__END__
=encoding utf8
=head1 NAME
Catmandu::RDF - Modules for handling RDF data within the Catmandu framework
=begin markdown
# STATUS
[](https://travis-ci.org/LibreCat/Catmandu-RDF)
[](https://coveralls.io/r/LibreCat/Catmandu-RDF)
[](http://cpants.cpanauthors.org/dist/Catmandu-RDF)
=end markdown
=head1 SYNOPSIS
Command line client C:
catmandu convert RDF --url http://dx.doi.org/10.2474/trol.7.147
--fix 'aref_query(dct_title,title)' to YAML
catmandu convert RDF --file rdfdump.nt to RDF --type turtle
See documentation of modules for more examples.
=head1 DESCRIPTION
Catmandu::RDF contains modules for handling RDF data within the L
framework. RDF data is encoded/decoded in L as
implemented with L. Please keep in mind that RDF is a graph-based
data structuring format with specialized technologies such as SPARQL and triple
stores. Using Catmandu::RDF to transform RDF to RDF (e.g. conversion from one
RDF serialization to another) is possible but probably less performant than
decent RDF tools. Catmandu::RDF, however, is more conventient to convert
between RDF and other data formats.
=head1 AVAILABLE MODULES
=over
=item L
Serialize RDF data (as RDF/XML, RDF/JSON, Turtle, NTriples, RDFa...)
=item L
Parse RDF data (RDF/XML, RDF/JSON, Turtle, NTriples...) or import from a SPARQL
endpoint
=item L
Copy values of RDF data in aREF format to a new field
=back
=head1 SEE ALSO
This module is based on L, L, L, and
L.
=head1 COPYRIGHT AND LICENSE
Copyright Jakob Voss, 2014-
This is free software; you can redistribute it and/or modify it under the same
terms as the Perl 5 programming language system itself.
=cut
release-pod-syntax.t 100644 001750 001750 456 12625307401 16611 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/t #!perl
BEGIN {
unless ($ENV{RELEASE_TESTING}) {
require Test::More;
Test::More::plan(skip_all => 'these tests are for release candidate testing');
}
}
# This file was automatically generated by Dist::Zilla::Plugin::PodSyntaxTests.
use Test::More;
use Test::Pod 1.41;
all_pod_files_ok();
Exporter 000755 001750 001750 0 12625307401 16422 5 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/lib/Catmandu RDF.pm 100644 001750 001750 7124 12625307401 17537 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/lib/Catmandu/Exporter package Catmandu::Exporter::RDF;
use namespace::clean;
use Catmandu::Sane;
use Moo;
use RDF::Trine::Serializer;
use RDF::Trine::Model;
use RDF::aREF;
our $VERSION = '0.28';
with 'Catmandu::RDF';
with 'Catmandu::Exporter';
# internal attributes
has decoder => (
is => 'lazy'
);
has serializer => (
is => 'lazy'
);
has model => (
is => 'lazy'
);
sub _build_decoder {
RDF::aREF::Decoder->new(
ns => $_[0]->ns // ($_[0]->ns eq 0 ? { } : RDF::NS->new),
callback => $_[0]->model
);
}
sub _build_serializer {
RDF::Trine::Serializer->new($_[0]->type // 'ntriples');
}
sub _build_model {
my $self = shift;
# Streaming output when we have type => NTriples
if (lc($self->type // 'ntriples') eq 'ntriples') {
sub {
require RDF::Trine::Statement;
eval {
my $st = RDF::aREF::Decoder::trine_statement(@_);
$self->fh->print($self->serializer->statement_as_string($st));
};
$self->decoder->error($@) if $@;
};
}
else {
RDF::Trine::Model->new;
}
}
sub add {
my ($self, $aref) = @_;
$self->decoder->decode($aref, keep_bnode_map => 1);
}
sub commit {
my ($self) = @_;
if (ref $self->model eq 'RDF::Trine::Model') {
$self->model->end_bulk_ops;
$self->decoder->clean_bnodes;
$self->serializer->serialize_model_to_file( $self->fh, $self->model );
}
}
1;
__END__
=head1 NAME
Catmandu::Exporter::RDF - serialize RDF data
=head1 SYNOPSIS
In Perl code:
use Catmandu -all;
my $exporter = exporter('RDF',
file => 'export.rdf',
type => 'XML',
fix => 'rdf.fix'
);
$exporter->add( $aref ); # pass RDF data in aREF encoding
$exporter->commit;
=head1 DESCRIPTION
This L exports RDF data in different RDF serializations.
=head1 CONFIGURATION
=over
=item file
=item fh
=item encoding
=item fix
Default configuration options of L. The option C is
supported as derived from L. For every C or for every
item in C the given fixes will be applied first.
=item type
A serialization form can be set with option C with default value
C. The option must refer to a subclass of L,
for instance C for RDF/Turtle with L.
The first letter is transformed uppercase, so C<< format => 'turtle' >> will
work as well. In addition there are aliases C for C, C for
C, C and C for C, C for C.
When the option C is set to 'NTriples' the export can be streamed in all
other cases the results are exported in bulk after C.
=item ns
The option C can refer to an instance of or to a constructor argument of
L. Use a fixed date, such as "C<20130816>" to make sure your URI
namespace prefixes are stable.
=back
=head1 METHODS
See also L.
=head2 add( ... )
RDF data is added given in B as
implemented with L and defined at L.
=head2 count
Returns the number of times C has been called. In contrast to other
Catmandu exporters, this does not reflect the number of exporter records
because RDF data is always merged to one RDF graph.
=head2 uri( $uri )
Expand and abbreviated with L. For instance "C" is expanded
to "C".
=cut
=head1 SEE ALSO
Serialization is based on L.
=encoding utf8
=cut
Importer 000755 001750 001750 0 12625307401 16413 5 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/lib/Catmandu RDF.pm 100644 001750 001750 21461 12625307401 17550 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/lib/Catmandu/Importer package Catmandu::Importer::RDF;
use open ':std', ':encoding(utf8)';
use namespace::clean;
use Catmandu::Sane;
use Moo;
use RDF::Trine::Parser;
use RDF::Trine::Model;
use RDF::Trine::Store::SPARQL;
use RDF::Trine::Store::LDF;
use RDF::Trine::Store;
use RDF::Query;
use RDF::LDF;
use RDF::aREF;
use RDF::aREF::Encoder;
use RDF::NS;
our $VERSION = '0.28';
with 'Catmandu::RDF';
with 'Catmandu::Importer';
has url => (
is => 'ro'
);
has base => (
is => 'ro',
lazy => 1,
builder => sub {
defined $_[0]->file ? "file://".$_[0]->file : "http://example.org/";
}
);
has encoder => (
is => 'ro',
lazy => 1,
builder => sub {
my $ns = $_[0]->ns;
RDF::aREF::Encoder->new(
ns => (($ns // 1) ? $ns : { }),
subject_map => !$_[0]->predicate_map,
);
}
);
has sparql => (
is => 'ro',
lazy => 1,
trigger => sub {
my ($sparql, $ns) = ($_[1], $_[0]->ns);
$sparql = do { local (@ARGV,$/) = $sparql; <> } if $sparql =~ /^\S+$/ && -r $sparql;
my %prefix;
# guess requires prefixes (don't override existing). Don't mind false positives
$prefix{$_} = 1 for ($sparql =~ /\s([a-z][a-z0-0_-]*):/mig);
delete $prefix{$_} for ($sparql =~ /PREFIX\s+([^:]+):/mg);
$_[0]->{sparql} = join "\n", (map { $ns->SPARQL($_) } keys %prefix), $sparql;
}
);
has sparql_result => (
is => 'ro',
default => sub { 'simple' }
);
has predicate_map => (
is => 'ro',
);
has triples => (
is => 'ro',
);
sub generator {
my ($self) = @_;
if ($self->sparql) {
return $self->sparql_generator;
} else {
return $self->rdf_generator;
}
}
sub sparql_generator {
my ($self) = @_;
warn "--triples not active for sparql queries" if ($self->triples);
warn "--predicate_map not active for sparql queries" if ($self->predicate_map);
my $encoder = RDF::aREF::Encoder->new( ns => {} ); # never return qnames
sub {
state $stream = $self->_sparql_stream;
if (defined($stream) && defined(my $row = $stream->next)) {
if (ref $row eq 'RDF::Query::VariableBindings' || ref $row eq 'RDF::Trine::VariableBindings') {
my $ref = {};
for (keys %$row) {
my $val = $row->{$_};
$ref->{$_} = $self->sparql_result eq 'aref'
? $encoder->object($val) : do { # TODO: clean up
if ( $val->is_resource ) {
$val->uri_value;
} elsif ( $val->is_literal) {
$val->literal_value;
} else {
$val->as_string
}
};
}
return $ref;
} else {
die "Expected a RDF::Query::VariableBindings or RDF::Trine::VariableBindings but got a " . ref($row);
}
} else {
return ($stream = undef);
}
};
}
sub rdf_generator {
my ($self) = @_;
sub {
state $stream = $self->_rdf_stream;
return unless $stream;
my $aref = { };
if ($self->triples) {
if (my $triple = $stream->next) {
$aref = $self->encoder->triple(
$triple->subject,
$triple->predicate,
$triple->object
);
} else {
return ($stream = undef);
}
} else {
# TODO: include namespace mappings if requested
$self->encoder->add_hashref( $stream->as_hashref, $aref );
if ($self->url) {
$aref->{_url} = $self->url;
}
$stream = undef;
}
if ($self->url) {
# RDF::Trine::Parser parses data from URL to UTF-8
# but we want internal character sequences
_utf8_decode($aref);
}
return $aref;
};
}
sub _utf8_decode {
if (ref $_[0] eq 'HASH') {
# FIXME: UTF-8 in property values
foreach (values %{$_[0]}) {
ref($_) ? _utf8_decode($_) : utf8::decode($_);
}
} else {
foreach (@{$_[0]}) {
ref($_) ? _utf8_decode($_) : utf8::decode($_);
}
}
}
sub _sparql_stream {
my ($self) = @_;
die "need an url" unless $self->url;
$self->log->info("parsing: " . $self->sparql);
my $store;
# Check if this server is an LDF server
my $ldf_client = RDF::LDF->new(url => $self->url);
if ($ldf_client->is_fragment_server) {
$store = RDF::Trine::Store->new_with_config({
storetype => 'LDF',
url => $self->url
});
}
else {
$store = RDF::Trine::Store->new_with_config({
storetype => 'SPARQL',
url => $self->url
});
}
unless ($store) {
$self->log->error("failed to connect to " . $self->url);
return undef;
}
my $model = RDF::Trine::Model->new($store);
my $rdf_query = RDF::Query->new($self->sparql);
unless ($rdf_query) {
$self->log->error("failed to parse " . $self->sparql);
return undef;
}
my $iterator = $rdf_query->execute($model);
unless ($iterator) {
$self->log->error("failed to execute " . $self->sparql . " at " . $self->url);
return undef;
}
}
sub _rdf_stream {
my ($self) = @_;
my $model = RDF::Trine::Model->new;
my $parser = $self->type
? RDF::Trine::Parser->new( $self->type ) : 'RDF::Trine::Parser';
if ($self->url) {
$parser->parse_url_into_model( $self->url, $model );
} else {
my $from_scalar = (ref $self->file // '') eq 'SCALAR';
if (!$self->type and $self->file and !$from_scalar) {
$parser = $parser->guess_parser_by_filename($self->file);
}
if ($from_scalar) {
$parser->parse_into_model( $self->base, ${$self->file}, $model );
} else {
$parser->parse_file_into_model( $self->base, $self->file // $self->fh, $model );
}
}
return $model->as_stream;
}
1;
__END__
=head1 NAME
Catmandu::Importer::RDF - parse RDF data
=head1 SYNOPSIS
Command line client C:
catmandu convert RDF --url http://d-nb.info/gnd/4151473-7 to YAML
catmandu convert RDF --file rdfdump.ttl to JSON
# Query a SPARQL endpoint
catmandu convert RDF --url http://dbpedia.org/sparql
--sparql "SELECT ?film WHERE { ?film dct:subject }"
catmandu convert RDF --url http://example.org/sparql --sparql query.rq
# Query a Linked Data Fragment endpoint
catmandu convert RDF --url http://fragments.dbpedia.org/2014/en
--sparql "SELECT ?film WHERE { ?film dct:subject }"
In Perl code:
use Catmandu::Importer::RDF;
my $url = "http://dx.doi.org/10.2474/trol.7.147";
my $rdf = Catmandu::Importer::RDF->new( url => $url )->first;
=head1 DESCRIPTION
This L can be use to import RDF data from URLs, files or
input streams, SPARQL endpoints, and Linked Data Fragment endpoints.
By default an RDF graph is imported as single item in aREF format (see
L).
=head1 CONFIGURATION
=over
=item url
URL to retrieve RDF from.
=item type
RDF serialization type (e.g. C for RDF/Turtle).
=item base
Base URL. By default derived from the URL or file name.
=item ns
Use default namespace prefixes as provided by L to abbreviate
predicate and datatype URIs. Set to C<0> to disable abbreviating URIs.
Set to a specific date to get stable namespace prefix mappings.
=item triples
Import each RDF triple as one aREF subject map (default) or predicate map
(option C), if enabled.
=item predicate_map
Import RDF as aREF predicate map, if possible.
=item file
=item fh
=item encoding
=item fix
Default configuration options of L.
=item sparql
The SPARQL query to be executed on the URL endpoint (currectly only SELECT is
supported). The query can be supplied as string or as filename. The importer
tries to automatically add missing PREFIX statements from the default namespace
prefixes.
=item sparql_result
Encoding of SPARQL result values. With C, query results are encoded in
aREF format, with URIs in C> and C> (no qNames) and literal nodes
appended by C<@> and optional language code. By default (value C), all
RDF nodes are simplfied to their literal form.
=back
=head1 METHODS
See L.
=head1 SEE ALSO
L, L
=encoding utf8
=cut
Fix 000755 001750 001750 0 12625307401 15340 5 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/lib/Catmandu aref_query.pm 100644 001750 001750 5201 12625307401 20176 0 ustar 00voj voj 000000 000000 Catmandu-RDF-0.28/lib/Catmandu/Fix package Catmandu::Fix::aref_query;
use Catmandu::Sane;
use Moo;
use Catmandu::Fix;
our $VERSION = '0.28';
with 'Catmandu::Fix::Base';
has query => (
is => 'ro',
coerce => sub { RDF::aREF::Query->new( query => $_[0] ) } # TODO: ns
);
has path => (
is => 'ro',
);
has subject => (
is => 'ro',
);
around 'BUILDARGS', sub {
my $orig = shift;
my $self = shift;
if (@_ == 3) {
$orig->($self, subject => $_[0], query => $_[1], path => $_[2] );
} elsif (@_ == 2) {
$orig->($self, query => $_[0], path => $_[1] );
} else {
$orig->($self, @_);
}
};
sub emit {
my ($self, $fixer) = @_;
my $subject = defined $self->subject ? $fixer->emit_string($self->subject) : 'undef';
my $path = $fixer->split_path($self->path);
my $query = $fixer->capture($self->query);
# TODO: replace/append/single-value mode
my $var = $fixer->var;
my $origin = $fixer->generate_var;
my $values = $fixer->generate_var;
my $perl = join "\n",
"my ${origin} = ${subject} // ${var}->{_uri} // ${var}->{_url};",
"my ${values} = [ ${query}->apply( ${var}, ${origin} ) ];",
$fixer->emit_create_path( $var, $path, sub {
my $var = shift;
join "\n", map { " $_" } '',
"if (is_array_ref(${var})) {",
" push \@{${var}}, \@{${values}};",
"} else {",
" if (defined ${var}) {",
" unshift \@{${values}}, ${var};",
" }",
" ${var} = \@{${values}} > 1 ? ${values} : ${values}->[0];",
"}"
;
});
# print $perl."\n";
return $perl;
}
1;
__END__
=head1 NAME
Catmandu::Fix::aref_query - copy values of RDF in aREF to a new field
=head1 SYNOPSIS
In Catmandu Fix language
aref_query( dc_title => title )
aref_query( query => 'dc_title', field => 'title' )
aref_query( 'http://example.org/subject', dc_title => title )
In Perl code
use Catmandu::Fix::aref_query as => 'my_query';
use RDF::aREF;
my $rdf = encode_aref("example.ttl");
my_query( $rdf, dc_title => 'title' );
=head1 DESCRIPTION
This L can be used to map values of imported RDF, given in
L structure
=head1 ARGUMENTS
=over
=item subject
Optional subject URI (first argument). By default, the fields C<_uri> and
C<_uri> are used.
=item query
aREF query expression (first or second argument)
=item path
Field name to map RDF data to (last argument). Existing values are also kept.
=back
=head1 SEE ALSO
Function C in L
=cut