1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
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 => [qw(
http://example.org/A
http://example.org/C
http://example.org/B
)]);
ok $client , 'got a federated client to http://example.org/A , http://example.org/B and http://example.org/C ... ';
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 $endpoint = $url;
$endpoint =~ s{\?.*}{};
my $base = $endpoint;
$base =~ s{(http://[^\/]+/).*}{$1};
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 $META = <<END;
<${base}#dataset> hydra:member <${endpoint}#dataset> .
<${endpoint}#dataset>
void:subset <${endpoint}> ;
void:uriLookupEndpoint "${endpoint}?{&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 "${endpoint}?{&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 <${endpoint}#dataset> ;
dc:title "Linked Data Fragment of DBpedia 2014" ;
void:subset <${endpoint}> ;
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" );
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
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
my $names2 = <<'END';
dbpedia:Agusti_Pol foaf:name "Agusti Pol" .
dbpedia:Agustiar_Batubara foaf:name "Agustiar Batubara" .
END
my $pol_name = <<'END';
dbpedia:Agusti_Pol foaf:name "Agusti Pol" .
END
my $batubara_name = <<'END';
dbpedia:Agustiar_Batubara foaf:name "Agustiar Batubara" .
END
# {A,B,C} all triples
add_fragment_response($ua, 'http://example.org/A', $birthPlaces, 3);
add_fragment_response($ua, 'http://example.org/B', $names, 6);
add_fragment_response($ua, 'http://example.org/C', $names2, 2);
add_fragment_response($ua, 'http://example.org/A?', $birthPlaces, 3);
add_fragment_response($ua, 'http://example.org/B?', $names, 6);
add_fragment_response($ua, 'http://example.org/C?', $names2, 2);
# {A,B,C}: ?s dbpedia-owl:birthPlace ?place
add_fragment_response($ua, 'http://example.org/A?&subject=%3Fs&predicate=http%3A%2F%2Fdbpedia.org%2Fontology%2FbirthPlace&object=%3Fplace', $birthPlaces, 3);
add_fragment_response($ua, 'http://example.org/B?&subject=%3Fs&predicate=http%3A%2F%2Fdbpedia.org%2Fontology%2FbirthPlace&object=%3Fplace', "", 0);
add_fragment_response($ua, 'http://example.org/C?&subject=%3Fs&predicate=http%3A%2F%2Fdbpedia.org%2Fontology%2FbirthPlace&object=%3Fplace', "", 0);
# {A,B,C}: ?s foaf:name ?name
add_fragment_response($ua, 'http://example.org/A?&subject=%3Fs&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', "", 0);
add_fragment_response($ua, 'http://example.org/B?&subject=%3Fs&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', $names, 6);
add_fragment_response($ua, 'http://example.org/C?&subject=%3Fs&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', $names2, 2);
# {A,B,C}: dbpedia:Augusti_Pol foaf:name ?name
add_fragment_response($ua, 'http://example.org/A?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgusti_Pol&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', "", 0);
add_fragment_response($ua, 'http://example.org/B?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgusti_Pol&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', $pol_name,1);
add_fragment_response($ua, 'http://example.org/C?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgusti_Pol&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', "", 0);
# {A,B,C}: dbpedia:Agustiar_Batubara foaf:name ?name
add_fragment_response($ua, 'http://example.org/A?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgustiar_Batubara&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', "", 0);
add_fragment_response($ua, 'http://example.org/B?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgustiar_Batubara&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', "", 0);
add_fragment_response($ua, 'http://example.org/C?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgustiar_Batubara&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', $batubara_name, 1);
# {a,B,C}: dbpedia:Agustin_Aguayo foaf:name ?name (No results)
add_fragment_response($ua, 'http://example.org/A?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgustin_Aguayo&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', '', 0);
add_fragment_response($ua, 'http://example.org/B?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgustin_Aguayo&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', '', 0);
add_fragment_response($ua, 'http://example.org/C?&subject=http%3A%2F%2Fdbpedia.org%2Fresource%2FAgustin_Aguayo&predicate=http%3A%2F%2Fxmlns.com%2Ffoaf%2F0.1%2Fname&object=%3Fname', '', 0);
return $ua;
}
|
