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use open ':std', ':encoding(utf8)';
use strict;
use warnings;
use Test::More;
use Test::Exception;
use RDF::Trine qw(statement iri variable);
use RDF::LDF;
use Test::LWP::UserAgent;
use Encode;
use utf8;
RDF::Trine->default_useragent(user_agent());
my $client = RDF::LDF->new(url => 'http://example.org/2014/en?test=1');
ok $client , 'got a client to http://example.org/2014/en?test=1';
ok $client->is_fragment_server , 'this server is a ldf server';
{
note("single triple pattern");
my $triple = statement(variable('s'), iri('http://dbpedia.org/ontology/birthPlace'), variable('place'));
my $iter = $client->get_pattern($triple);
isa_ok $iter, 'RDF::Trine::Iterator::Bindings', 'iterator for get_pattern';
my $r = $iter->next;
isa_ok $r, 'RDF::Trine::VariableBindings', 'result object';
my $s = $r->{'s'};
isa_ok $s, 'RDF::Trine::Node::Resource', 'expected subject IRI';
is $s->value, 'http://dbpedia.org/resource/Agusti_Pol', 'expected subject IRI value';
}
{
note("single triple pattern utf8");
my $triple = statement(variable('s'), iri('http://xmlns.com/foaf/0.1/name'), variable('name'));
my $iter = $client->get_pattern($triple);
isa_ok $iter, 'RDF::Trine::Iterator::Bindings', 'iterator for get_pattern';
my $r = $iter->next;
isa_ok $r, 'RDF::Trine::VariableBindings', 'result object';
my $s = $r->{'s'};
isa_ok $s, 'RDF::Trine::Node::Resource', 'expected subject IRI';
is $s->value, 'http://dbpedia.org/resource/François_Schuiten', 'expected subject IRI value';
}
{
note("two triple pattern BGP");
my $bgp = RDF::Query::Algebra::BasicGraphPattern->new(
statement(variable('s'), iri('http://dbpedia.org/ontology/birthPlace'), variable('place')),
statement(variable('s'), iri('http://xmlns.com/foaf/0.1/name'), variable('name')),
);
my $iter = $client->get_pattern($bgp);
isa_ok $iter, 'RDF::Trine::Iterator::Bindings', 'iterator for get_pattern';
my $count = 0;
my %seen;
while (my $r = $iter->next) {
isa_ok $r, 'RDF::Trine::VariableBindings', 'result object';
my $s = $r->{'s'};
$seen{ $s->value }{count}++;
push(@{ $seen{ $s->value }{name} }, $r->{'name'}->value);
push(@{ $seen{ $s->value }{place} }, $r->{'place'}->value);
$count++;
}
is $count, 3, 'result count';
is_deeply(\%seen, {
'http://dbpedia.org/resource/Agustiar_Batubara' => {
'count' => 2,
'name' => ['Agustiar Batubara', 'Agustiar Batubara'],
'place' => [ 'http://dbpedia.org/resource/Indonesia', 'http://dbpedia.org/resource/Surabaya'],
},
'http://dbpedia.org/resource/Agusti_Pol' => {
'count' => 1,
'name' => [ 'Agusti Pol'],
'place' => [ 'http://dbpedia.org/resource/Andorra'],
}
}, 'expected counts');
}
done_testing;
sub add_fragment_response {
my $ua = shift;
my $url = shift;
my $content = shift;
my $total = shift // 1;
my $next = shift;
my $NS = <<'END';
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix dc11: <http://purl.org/dc/elements/1.1/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
@prefix dbpedia: <http://dbpedia.org/resource/> .
@prefix dbpedia-owl: <http://dbpedia.org/ontology/> .
@prefix dbpprop: <http://dbpedia.org/property/> .
@prefix hydra: <http://www.w3.org/ns/hydra/core#> .
@prefix void: <http://rdfs.org/ns/void#> .
END
my $META = <<'END';
<http://example.org/#dataset> hydra:member <http://example.org/2014/en?test=1#dataset> .
<http://example.org/2014/en?test=1#dataset>
void:subset <http://example.org/2014/en?test=1> ;
void:uriLookupEndpoint "http://example.org/2014/en?test=1{&subject,predicate,object}" ;
a void:Dataset, hydra:Collection ;
hydra:search [
hydra:mapping [
hydra:property rdf:object ;
hydra:variable "object"
], [
hydra:property rdf:predicate ;
hydra:variable "predicate"
], [
hydra:property rdf:subject ;
hydra:variable "subject"
] ;
hydra:template "http://example.org/2014/en?test=1{&subject,predicate,object}"
] .
END
my $FRAGMENT = <<"END";
<$url>
dc:description "Triple Pattern Fragment of the 'DBpedia 2014' dataset containing triples matching the pattern { ?s ?p ?o }." ;
dc:source <http://example.org/2014/en?test=1#dataset> ;
dc:title "Linked Data Fragment of DBpedia 2014" ;
void:subset <http://example.org/2014/en?test=1> ;
a hydra:Collection, hydra:PagedCollection ;
hydra:first <$url> ;
hydra:itemsPerPage 5 ;
void:triples $total ;
hydra:totalItems $total .
END
if (defined($next)) {
$FRAGMENT .= <<"END";
<$url> hydra:next<$next> .
END
}
$ua->map_response(
qr{^\Q$url\E$},
HTTP::Response->new(
'200',
'OK',
['Content-Type' => 'text/turtle;charset=utf-8'],
Encode::encode_utf8($NS) .
Encode::encode_utf8($META) .
Encode::encode_utf8($FRAGMENT) .
Encode::encode_utf8($content)
)
);
}
sub user_agent {
my $ua = Test::LWP::UserAgent->new( agent => "RDF:::LDF/$RDF::LDF::VERSION" );
# ?s dbpedia-owl:birthPlace ?name
my $birthPlaces = <<'END';
dbpedia:Agusti_Pol dbpedia-owl:birthPlace dbpedia:Andorra .
dbpedia:Agustiar_Batubara dbpedia-owl:birthPlace dbpedia:Indonesia, dbpedia:Surabaya .
dbpedia:Agustin_Aguayo dbpedia-owl:birthPlace dbpedia:Guadalajara .
END
add_fragment_response($ua, 'http://example.org/2014/en?test=1', $birthPlaces, 4);
add_fragment_response($ua, 'http://example.org/2014/en?test=1&subject=%3Fs&predicate=http%3A%2F%2Fdbpedia.org%2Fontology%2FbirthPlace&object=%3Fplace', $birthPlaces, 3);
# ?s foaf:name ?name (page 1)
my $names = <<'END';
dbpedia:François_Schuiten foaf:name "François Schuiten" .
<http://dbpedia.org/resource/4th_arrondissement_of_Marseille> foaf:name "4th arrondissement of Marseille"@en .
<http://dbpedia.org/resource/4th_arrondissement_of_Paris> foaf:name "4th arrondissement of Paris"@en .
<http://dbpedia.org/resource/4th_arrondissement_of_Porto-Novo> foaf:name "4th arrondissement of Porto-Novo"@en .
<http://dbpedia.org/resource/4th_arrondissement_of_the_Littoral_Department> foaf:name "4th arrondissement"@en .
<http://dbpedia.org/resource/4th_municipality_of_Naples> foaf:name "Fourth Municipality of Naples"@en, "Municipalità 4"@en, "Quarta Municipalità"@en .
END
add_fragment_response($ua, 'http://example.org/2014/en?test=1&subject=%3Fs&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', $names, 7, 'http://example.org/2014/en?test=1&subject=%3Fs&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname&page=2');
# ?s foaf:name ?name (page 2)
my $names2 = <<'END';
dbpedia:Agusti_Pol foaf:name "Agusti Pol" .
dbpedia:Agustiar_Batubara foaf:name "Agustiar Batubara" .
END
add_fragment_response($ua, 'http://example.org/2014/en?test=1&subject=%3Fs&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname&page=2', $names, 7);
# dbpedia:Agusti_Pol foaf:name ?name
my $pol_name = <<'END';
dbpedia:Agusti_Pol foaf:name "Agusti Pol" .
END
add_fragment_response($ua, 'http://example.org/2014/en?test=1&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgusti_Pol&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', $pol_name, 1);
# dbpedia:Agustiar_Batubara foaf:name ?name
my $batubara_name = <<'END';
dbpedia:Agustiar_Batubara foaf:name "Agustiar Batubara" .
END
add_fragment_response($ua, 'http://example.org/2014/en?test=1&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgustiar_Batubara&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', $batubara_name, 1);
# dbpedia:Agustin_Aguayo foaf:name ?name (No results)
add_fragment_response($ua, 'http://example.org/2014/en?test=1&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgustin_Aguayo&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', '', 0);
return $ua;
}
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