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test_rdf_db.pl
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test_rdf_db.pl
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/* Part of SWI-Prolog
Author: Jan Wielemaker
E-mail: [email protected]
WWW: http://www.swi-prolog.org
Copyright (c) 2009-2016, University of Amsterdam
VU University Amsterdam
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
:- module(test_rdf_db,
[ test_rdf_db/0
]).
:- include(local_test).
:- use_module(library(semweb/rdf_db)).
:- use_module(library(semweb/rdfs)).
:- use_module(library(xsdp_types)).
:- use_module(library(lists)).
:- use_module(library(plunit)).
:- use_module(library(debug)).
:- discontiguous
term_expansion/2.
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
RDF-DB test file. A test is a clause of the form:
<TestSet>(<Name>-<Number>) :- Body.
If the body fails, an appropriate error message is printed. So, all
goals are supposed to succeed. The predicate testset/1 defines the
available test sets. The public goals are:
?- runtest(+TestSet).
?- test.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
test_rdf_db :-
test,
run_tests([ lang_matches,
lit_ranges,
num_ranges,
rdf_prefix
]).
test_input(Name, Path) :-
source_file(test_rdf_db, MyFile),
file_directory_name(MyFile, MyDir),
atomic_list_concat([MyDir, Name], /, Path).
/*******************************
* TEST DATA *
*******************************/
data(string, '').
data(string, 'This is a nice string').
data(string, '\u0411\u0435\u0441\u043f\u043b\u0430\u0442\u043d\u0430\u044f').
data(int, 0).
data(int, -67).
data(int, 327848).
data(float, 0.0).
data(float, 48.25).
data(term, [let, us, test, a, list]).
data(term, [let, us, test, another, list]).
/*******************************
* LOAD/SAVE *
*******************************/
save_reload_db :-
tmp_file(rdf, File),
rdf_save_db(File),
rdf_reset_db,
rdf_load_db(File),
delete_file(File).
save_reload :-
tmp_file(rdf, File),
rdf_save(File),
rdf_reset_db,
rdf_load(File,
[ base_uri([]), % do not qualify
convert_typed_literal(convert_typed),
format(xml)
]),
delete_file(File).
save_reload(Encoding) :-
tmp_file(rdf, File),
rdf_save(File, [encoding(Encoding)]),
rdf_reset_db,
rdf_load(File,
[ base_uri([]), % do not qualify
convert_typed_literal(convert_typed),
format(xml)
]),
delete_file(File).
% convert_typed(+Type, +Content, -Object)
%
% Convert to type(Type, PrologValue), providing the inverse of
% the default RDF as produced by rdf_db.pl
convert_typed(Type, Content, type(Type, Value)) :-
xsdp_convert(Type, Content, Value).
/*******************************
* RESOURCE *
*******************************/
resource(1) :-
rdf_assert(x, a, aap),
rdf_assert(x, a, noot),
findall(X, rdf(x, a, X), L),
L == [aap, noot].
/*******************************
* SIMPLE LITERAL *
*******************************/
literal(1) :-
findall(V, data(_, V), Vs),
forall(member(Value, Vs),
rdf_assert(x, a, literal(Value))),
findall(V, (rdf(x, a, X), X = literal(V)), V2),
V2 == Vs.
literal(2) :-
rdf_assert(x, a, literal(plain)),
rdf(x, a, literal(type(xsd:string, Plain))),
Plain == plain,
rdf(x, a, literal(type(xsd:string, plain))).
/*******************************
* UNIFYING ARGS *
*******************************/
same(1) :-
rdf_assert(a,b,c),
rdf_assert(x,x,x),
rdf(X,X,X),
X == x.
/*******************************
* TYPED LITERALS *
*******************************/
typed(1) :-
findall(type(T,V), data(T, V), TVs),
forall(member(Value, TVs),
rdf_assert(x, a, literal(Value))),
findall(V, (rdf(x, a, X), X = literal(V)), V2),
V2 == TVs.
typed(2) :-
findall(type(T,V), data(T, V), TVs),
forall(member(Value, TVs),
rdf_assert(x, a, literal(Value))),
findall(V, rdf(x, a, literal(V)), V2),
V2 == TVs.
typed(3) :-
findall(type(T,V), data(T, V), TVs),
forall(member(Value, TVs),
rdf_assert(x, a, literal(Value))),
X = type(T,V),
findall(X, rdf(x, a, literal(X)), TV2),
TV2 == TVs.
typed(save_db) :-
findall(type(T,V), data(T, V), TVs),
forall(member(Value, TVs),
rdf_assert(x, a, literal(Value))),
save_reload_db,
X = type(T,V),
findall(X, rdf(x, a, literal(X)), TV2),
TV2 == TVs.
typed(save) :-
findall(type(T,V),
( data(T, V),
T \== term,
V \== ''
), TVs),
forall(member(Value, TVs),
rdf_assert(x, a, literal(Value))),
save_reload,
findall(X, rdf(x, a, literal(X)), TV2),
( same_set(TV2, TVs)
-> true
; format('TV2 = ~q~n', [TV2]),
fail
).
typed(match) :-
rdf_assert(x, a, literal(c)),
\+ rdf(x, a, literal(type(t, c))),
\+ rdf(x, a, literal(type(t, _))).
typed(match_lang) :-
rdf_assert(x, a, literal(lang(en, 'hello'))),
rdf_retractall(_,_,literal(lang(nl, _))),
rdf(x,a,literal(lang(en, 'hello'))).
typed(convert) :-
rdf_literal_value(literal(type(xsd:integer, '42')), 42).
/*******************************
* XML:LANG HANDLING *
*******************************/
lang_data :-
lang_data(x, a).
lang_data(S, A) :-
rdf_assert(S, A, literal(lang(nl, 'Jan'))),
rdf_assert(S, A, literal(lang(en, 'John'))),
rdf_assert(S, A, literal(lang(en, ''))),
rdf_assert(S, A, literal('Johannes')).
same_set(S1, S2) :-
sort(S1, Sorted1),
sort(S2, Sorted2),
Sorted1 =@= Sorted2.
lang(1) :-
lang_data,
findall(X, rdf(x, a, literal(X)), Xs),
Xs == [ lang(nl, 'Jan'),
lang(en, 'John'),
lang(en, ''),
'Johannes'
].
lang(2) :-
lang_data,
findall(X, rdf(x, a, literal(lang(nl, X))), Xs),
Xs == [ 'Jan' ].
lang(3) :-
lang_data,
X = lang(_,_),
findall(X, rdf(x, a, literal(X)), Xs),
Xs =@= [ lang(nl, 'Jan'),
lang(en, 'John'),
lang(en, ''),
lang(_, 'Johannes')
].
lang(4) :-
lang_data,
rdf(S, P, literal('Jan')), S == x, P == a,
rdf(S, P, literal('Johannes')), S == x, P == a.
lang(save_db) :-
lang_data,
save_reload_db,
X = lang(_,_),
findall(X, rdf(x, a, literal(X)), Xs),
( Xs =@= [ lang(nl, 'Jan'),
lang(en, 'John'),
lang(en, ''),
lang(_, 'Johannes')
]
-> true
; format(user_error, 'Xs = ~w~n', [Xs]),
fail
).
lang(save) :-
lang_data,
save_reload,
findall(X, rdf(x, a, literal(X)), Xs),
( same_set(Xs,
[ lang(nl, 'Jan'),
lang(en, 'John'),
lang(en, ''),
'Johannes'
])
-> true
; format(user_error, 'Xs = ~q~n', [Xs]),
fail
).
/*******************************
* NAMESPACES *
*******************************/
term_expansion(ns_data(S0,P0,O0),
ns_data(S,P,O)) :-
rdf_global_id(S0, S),
rdf_global_id(P0, P),
rdf_global_id(O0, O).
:- rdf_register_ns(dynamic, 'http://www.dynamic.org/').
ns_data(x, rdf:type, rdf:is).
ns_data(y, rdf:type, rdf:(dynamic)).
ns_data(z, rdf:type, (dynamic):rdf).
ns_data(z, (dynamic):attr1, literal(dynamic)).
ns_data(z, (dynamic):attr2, (dynamic):rdf).
namespace(save) :-
findall(rdf(S,P,O), ns_data(S,P,O), Triples),
forall(member(rdf(S,P,O), Triples), rdf_assert(S,P,O)),
save_reload,
findall(rdf(S,P,O), rdf(S,P,O), NewTriples),
( same_set(Triples, NewTriples)
-> true
; format(user_error, 'NewTriples = ~q~n', [NewTriples]),
fail
).
/*******************************
* LITERAL SHARING *
*******************************/
lshare(1) :-
rdf_assert(a,b,literal(aap)),
rdf_statistics(literals(1)).
lshare(2) :-
rdf_assert(a,b,literal(aap)),
rdf_retractall(a,b,literal(aap)),
assertion(no_literals).
lshare(3) :-
rdf_assert(a,b,literal(aap)),
rdf_assert(a,c,literal(aap)), % shared
rdf_statistics(literals(1)).
lshare(4) :-
rdf_assert(a,b,literal(aap)),
rdf_assert(a,c,literal(aap)),
rdf_retractall(a,b,literal(aap)),
rdf_retractall(a,c,literal(aap)),
assertion(no_literals).
lshare(5) :-
rdf_assert(a,b,literal(aap), g1),
rdf_assert(a,b,literal(aap), g2),
rdf_statistics(literals(X1)),
assertion(X1 == 1),
rdf_retractall(a,b,literal(aap)),
assertion(no_literals).
%! no_literals
%
% We may have to wait a little because the automatic garbage
% collector did the work asynchronously and we still get the old
% value.
no_literals :-
rdf_gc,
( rdf_statistics(literals(0))
-> true
; %writeln('Retrying'),
between(1, 10, _),
sleep(0.01),
rdf_statistics(literals(0))
).
/*******************************
* WIDE CHARACTERS *
*******************************/
wide_atom(A) :-
atom_codes(A, [97, 1080, 1081]).
wide(iso-object-resource) :-
wide_atom(A),
rdf_assert(aap, noot, A),
save_reload(iso_latin_1).
wide(utf8-object-resource) :-
wide_atom(A),
rdf_assert(aap, noot, A),
save_reload(utf8).
wide(iso-object-literal) :-
wide_atom(A),
rdf_assert(aap, noot, literal(A)),
save_reload(iso_latin_1).
wide(utf8-object-literal) :-
wide_atom(A),
rdf_assert(aap, noot, literal(A)),
save_reload(utf8).
%wide(iso-predicate) :- Requires XML UTF-8 names.
% wide_atom(A),
% rdf_assert(aap, A, noot),
% save_reload(iso_latin_1).
%wide(utf8-predicate) :-
% wide_atom(A),
% rdf_assert(aap, A, noot),
% save_reload(utf8).
wide(iso-subject) :-
wide_atom(A),
rdf_assert(A, aap, noot),
save_reload(iso_latin_1).
wide(utf8-subject) :-
wide_atom(A),
rdf_assert(A, aap, noot),
save_reload(utf8).
wide(db-object-literal) :-
wide_atom(A),
rdf_assert(aap, noot, literal(A)),
save_reload_db.
/*******************************
* UPDATE *
*******************************/
update(subject) :-
rdf_assert(x, a, v),
rdf_update(x, a, v, subject(y)),
rdf(y, a, v).
update(predicate) :-
rdf_assert(x, a, v),
rdf_update(x, a, v, predicate(b)),
rdf(x, b, v).
update(object-1) :-
rdf_assert(x, a, v),
rdf_update(x, a, v, object(w)),
rdf(x, a, w).
update(object-2) :-
rdf_assert(x, a, v),
rdf_update(x, a, v, object(literal(hello))),
rdf(x, a, literal(hello)).
update(object-3) :-
rdf_assert(x, a, v),
rdf_update(x, a, v, object(literal(lang(nl, hallo)))),
rdf(x, a, literal(lang(nl, hallo))).
update(object-4) :- % add lang
rdf_assert(x, a, literal(hallo)),
rdf_update(x, a, literal(hallo),
object(literal(lang(nl, hallo)))),
rdf(x, a, literal(lang(nl, hallo))).
update(object-5) :- % only change lang
rdf_assert(x, a, literal(lang(en, hallo))),
rdf_update(x, a, literal(lang(en, hallo)),
object(literal(lang(nl, hallo)))),
rdf(x, a, literal(lang(nl, hallo))).
update(object-6) :- % drop lang
rdf_assert(x, a, literal(lang(en, hallo))),
rdf_update(x, a, literal(lang(en, hallo)),
object(literal(hallo))),
rdf(x, a, literal(hallo)).
update(object-7) :- % transaction update
rdf_assert(x, a, literal(lang(en, hallo))),
rdf_transaction(rdf_update(x, a, literal(lang(en, hallo)),
object(literal(hallo)))),
rdf(x, a, literal(hallo)).
update(literal) :-
rdf_assert(s1, p, literal(xxx)),
rdf_assert(s2, p, literal(xxx)),
rdf_update(s1, p, literal(xxx), subject(s3)),
rdf(s3, p, literal(xxx)).
/*******************************
* TRANSACTIONS *
*******************************/
transaction(empty-1) :-
rdf_transaction(true),
findall(rdf(S,P,O), rdf(S,P,O), L),
L == [].
transaction(assert-1) :-
rdf_transaction(rdf_assert(x, a, v)),
findall(rdf(S,P,O), rdf(S,P,O), L),
L == [ rdf(x, a, v)
].
transaction(assert-2) :-
\+ rdf_transaction((rdf_assert(x, a, v), fail)),
findall(rdf(S,P,O), rdf(S,P,O), L),
L == [].
transaction(nest-1) :-
rdf_transaction( ( rdf_assert(x, a, v),
rdf_transaction(rdf_assert(x, a, v2)))),
findall(rdf(S,P,O), rdf(S,P,O), L),
L == [ rdf(x, a, v),
rdf(x, a, v2)
].
transaction(nest-2) :-
rdf_transaction( ( rdf_assert(x, a, v),
\+ rdf_transaction((rdf_assert(x, a, v2),fail)))),
findall(rdf(S,P,O), rdf(S,P,O), L),
L == [ rdf(x, a, v)
].
transaction(nest-3) :-
rdf_assert(s1,p1,o1),
rdf_transaction( ( rdf_assert(s2,p2,o2),
rdf_transaction(rdf_retractall(_,_,_), _,
[snapshot(true)]),
findall(rdf(S,P,O), rdf(S,P,O), L)
)),
L == [ rdf(s1,p1,o1),
rdf(s2,p2,o2)
].
transaction(nest-3) :-
rdf_assert(s1,p1,o1),
rdf_transaction( ( rdf_assert(s2,p2,o2),
rdf_transaction(rdf_assert(s3,p3,o3), _,
[snapshot(true)]),
findall(rdf(S,P,O), rdf(S,P,O), L)
)),
L == [ rdf(s1,p1,o1),
rdf(s2,p2,o2)
].
transaction(deadlock-1) :-
rdf_assert(x,y,z,g),
rdf_assert(x,y,z,g),
rdf_transaction(rdf(_S, _P, _O, _G)).
transaction(deadlock-2) :-
tmp_file(rdf, F1),
tmp_file(rdf, F2),
rdf_assert(a, b, c, f1),
rdf_assert(x, y, z, f2),
rdf_save_db(F1, f1),
rdf_save_db(F2, f2),
rdf_reset_db,
rdf_assert(l, f, F1),
rdf_assert(l, f, F2),
rdf_transaction(forall(rdf(l, f, F),
rdf_load_db(F))),
findall(rdf(S,P,O), rdf(S,P,O), L),
L == [ rdf(l,f,F1),
rdf(l,f,F2),
rdf(a,b,c),
rdf(x,y,z)
],
delete_file(F1),
delete_file(F2).
transaction(active-1) :-
\+ rdf_active_transaction(_).
transaction(active-2) :-
rdf_transaction(rdf_active_transaction(x), x).
transaction(active-3) :-
rdf_transaction(findall(X, rdf_active_transaction(X), Xs), x),
Xs == [x].
transaction(active-4) :-
rdf_transaction(rdf_active_transaction(Y), X),
X == Y.
transaction(active-5) :-
rdf_transaction(rdf_active_transaction(x), X),
X == x.
/*******************************
* LABELS *
*******************************/
label(1) :-
rdf_global_id(rdfs:label, Label),
lang_data(x, Label),
findall(L, rdfs_label(x, L), Ls), Ls = ['Jan', 'John', '', 'Johannes'].
label(2) :-
rdf_global_id(rdfs:label, Label),
lang_data(x, Label),
findall(L, rdfs_label(x, en, L), Ls), Ls = ['John', ''].
/*******************************
* MATCH *
*******************************/
match(1) :-
rdf_assert(a,b,literal('hello there world!')),
rdf(a,b,literal(substring('llo'), _)).
match(2) :-
rdf_assert(a,b,literal('hello there world!')),
rdf(a,b,literal(word('there'), _)).
match(3) :-
rdf_assert(a,b,literal('hello there world!')),
rdf(a,b,literal(word('hello'), _)).
match(4) :-
rdf_assert(a,b,literal('hello there world!')),
rdf(a,b,literal(word('world'), _)).
match(5) :-
rdf_assert(a,b,literal('hello there world!')),
rdf(a,b,literal(like('*there*'), _)).
match(6) :-
rdf_assert(a,b,literal('hello there world!')),
rdf(a,b,literal(like('*world!*'), _)).
match(7) :- % test backtracking
rdf_assert(a,b,literal('hello there world there universe!')),
rdf(a,b,literal(like('*th*uni*'), _)).
/*******************************
* PREFIX *
*******************************/
prefix_data(s, p1, aaaaa).
prefix_data(s, p1, aaaab).
prefix_data(s, p1, aaabb).
prefix_data(s, p1, aaacc).
prefix_data(s, p1, aaccc).
prefix_data(s, p1, adddd).
prefix_data(s, p2, 'BBBBB').
prefix_data(s, p2, 'bbbbb').
prefix_data(s, p2, 'bbbcc').
prefix_data(s, p2, 'BBBcc').
mkprefix_db(P) :-
forall(prefix_data(S,P,O),
rdf_assert(S, P, literal(O))).
tprefix(P, Prefix) :-
mkprefix_db(P),
findall(rdf(A,P,L), rdf(A,P,literal(prefix(Prefix), L)), List),
findall(rdf(A,P,L),
( prefix_data(A,P,L),
case_prefix(Prefix, L)
), L2),
% writeln(List),
L2 == List.
case_prefix(Prefix, Atom) :-
atom_codes(Prefix, PC),
atom_codes(Atom, AC),
prefix_codes(PC, AC).
prefix_codes([], _).
prefix_codes([H0|T0], [H|T]) :-
code_type(L, to_lower(H0)),
code_type(L, to_lower(H)),
prefix_codes(T0, T).
prefix(1) :- tprefix(p1, '').
prefix(2) :- tprefix(p1, a).
prefix(3) :- tprefix(p1, aa).
prefix(4) :- tprefix(p1, aaa).
prefix(5) :- tprefix(p1, aaaa).
prefix(6) :- tprefix(p1, aaaaa).
prefix(7) :- tprefix(p2, bbbb).
prefix(8) :- tprefix(p2, bbbbb).
prefix(9) :- tprefix(p2, 'Bbbbb').
prefix(10) :- tprefix(p2, 'BBBBB').
prefix(like-1) :-
mkprefix_db(_),
findall(L, rdf(_,_,literal(like('a*b'), L)), Ls),
Ls = [aaaab, aaabb].
/*******************************
* RETRACTALL *
*******************************/
rdf_retractall(nopred-1) :-
rdf_retractall(aap, noot, mies).
rdf_retractall(term) :-
rdf_assert(a, b, literal(x)),
rdf_assert(a, b, literal(x(1))),
rdf_retractall(a, b, literal(x(_))),
findall(V, rdf(a,b,V), [literal(x)]).
/*******************************
* MONITOR *
*******************************/
%do_monitor(Event) :-
% writeln(Event), fail.
do_monitor(assert(S, P, O, DB)) :-
atom(O),
ip(P, IP),
rdf_transaction(rdf_assert(O, IP, S, DB)).
do_monitor(retract(S, P, O, DB)) :-
atom(O),
ip(P, IP),
rdf_transaction(rdf_retractall(O, IP, S, DB)).
ip(a, ia).
ip(b, ib).
monitor(transaction-1) :-
rdf_reset_db,
rdf_monitor(do_monitor, []),
rdf_transaction(rdf_assert(x, a, y, db)),
rdf_monitor(do_monitor, [-all]),
findall(rdf(S,P,O), rdf(S,P,O), DB),
assertion(DB == [ rdf(x, a, y),
rdf(y, ia, x)
]),
rdf_monitor(do_monitor, []),
rdf_transaction(rdf_retractall(x, a, y, db)),
rdf_monitor(do_monitor, [-all]),
assertion(\+rdf(_,_,_)).
/*******************************
* SUB-PROPERTY *
*******************************/
subproperty(1) :-
rdf_assert(a, p, b),
\+ rdf_has(_, p2, b, _).
subproperty(2) :-
rdf_assert(s, p, o),
rdf_has(s,P,o),
P == p.
subproperty(3) :-
rdf_assert(s, p, o),
rdf_assert(p, rdfs:subPropertyOf, sp),
rdf_has(s,sp,o).
subproperty(4) :-
rdf_assert(s, p, o),
rdf_assert(p, rdfs:subPropertyOf, sp),
rdf_has(s,sp,o,P),
P == p.
subproperty(5) :-
rdf_assert(s, p, o),
rdf_assert(p, rdfs:subPropertyOf, sp),
rdf_set_predicate(sp, inverse_of(ip)),
rdf_has(o,ip,s,P),
P == inverse_of(p).
/*******************************
* INVERSE *
*******************************/
inverse(1) :-
rdf_assert(s, p, o),
rdf_set_predicate(p, inverse_of(ip)),
findall(O-S, rdf_has(O, ip, S), List),
List == [o-s].
/*******************************
* PROPERTY HIERACHY *
*******************************/
%! ptree(+Id)
%
% Property hierarchy handling for rdf_has/3. The routines maintain
% clouds of connected properties and for each cloud a bitmatrix
% filled with the closure of the rdfs:subPropertyOf relation.
%
% @tbd: improve tests by trying all permutations of the order in
% which the graph is built.
ptree(1) :-
rdf_assert(a, rdfs:subPropertyOf, b),
rdf_assert(x, a, y),
rdf_has(x, b, y).
ptree(2) :- % simple cycle
rdf_assert(a, rdfs:subPropertyOf, b),
rdf_assert(b, rdfs:subPropertyOf, a),
rdf_assert(x, a, y),
rdf_has(x, b, y).
ptree(3) :- % self-cycle
rdf_assert(a, rdfs:subPropertyOf, a),
rdf_assert(x, a, y),
rdf_has(x, a, y).
ptree(4) :- % two roots
rdf_assert(c, rdfs:subPropertyOf, b),
rdf_assert(c, rdfs:subPropertyOf, d),
rdf_assert(x, c, y),
rdf_has(x, b, y),
rdf_has(x, d, y).
ptree(5) :- % two roots, 2nd leg
rdf_assert(c, rdfs:subPropertyOf, b),
rdf_assert(c, rdfs:subPropertyOf, d),
rdf_assert(a, rdfs:subPropertyOf, b),
rdf_assert(x, c, y),
rdf_assert(x, a, z),
rdf_has(x, b, y),
rdf_has(x, d, y),
rdf_has(x, b, z),
\+ rdf_has(x, d, z).
ptree(6) :- % two root cycles
rdf_assert(c, rdfs:subPropertyOf, b),
rdf_assert(c, rdfs:subPropertyOf, d),
rdf_assert(b, rdfs:subPropertyOf, bc),
rdf_assert(bc, rdfs:subPropertyOf, b),
rdf_assert(d, rdfs:subPropertyOf, dc),
rdf_assert(dc, rdfs:subPropertyOf, d),
rdf_assert(x, c, y),
rdf_has(x, b, y),
rdf_has(x, d, y),
rdf_has(x, dc, y),
rdf_has(x, bc, y).
ptree(7) :- % create and break the cycles
rdf_assert(x, a, y),
rdf_assert(a, rdfs:subPropertyOf, b),
rdf_retractall(a, rdfs:subPropertyOf, b),
\+ rdf_has(x, b, y).
/*******************************
* REACHABLE *
*******************************/
graph(a, p, b).
graph(b, p, c).
graph(c, p, d).
graph(b, p, d).
graph(e, p, d).
graph(Symmetric) :-
rdf_set_predicate(p, symmetric(Symmetric)),
forall(graph(S,P,O),
rdf_assert(S,P,O)).
reachable(1) :-
rdf_reachable(a, x, a).
reachable(2) :-
graph(false),
rdf_reachable(a, p, d).
reachable(3) :-
graph(false),
rdf_reachable(a, p, X),
X == c,
!.
reachable(4) :-
graph(false),
findall(O, rdf_reachable(a, p, O), Os),
Os = [a,b,c,d].
reachable(5) :-
graph(false),
\+ rdf_reachable(d, p, a).
reachable(6) :-
graph(true),
rdf_reachable(d, p, a).
reachable(6) :-
graph(true),
rdf_reachable(e, p, a).
/*******************************
* DUPLICATES *
*******************************/
duplicates(1) :-
rdf_assert(a, b, literal(lang(en, l))),
rdf_assert(a, b, literal(l)),
rdf_retractall(a, b, literal(lang(en, l))).
/*******************************
* SOURCE *
*******************************/
source(1) :-
rdf_assert(a,b,c,test),
get_time(Now),
rdf_db:rdf_set_graph_source(test, 'test.rdf', Now),
rdf_source(test, X),
X == 'test.rdf'.
source(2) :-
rdf_assert(s,p,o,test),
rdf_graph_property(test, hash(MD5a)),
rdf_unload_graph(test),
rdf_assert(s,p,o,test),
rdf_graph_property(test, hash(MD5z)),
assertion(MD5a == MD5z).
source(3) :-
rdf_assert(s,p,o,g),
assertion(rdf_statistics(graphs(1))),
rdf_unload_graph(g),
assertion(rdf_statistics(graphs(0))),
rdf_assert(s,p,o,g),
assertion(rdf_statistics(graphs(1))).
/*******************************
* RETRACT *
*******************************/
delete(1) :-
rdf_assert(s,p,o),
rdf_retractall(s,p,o),
rdf_statistics(triples(Count)),
assertion(Count == 0).
delete(2) :-
rdf_assert(s,p,o),
rdf_transaction(rdf_retractall(s,p,o)),
rdf_statistics(triples(Count)),
assertion(Count == 0).
delete(3) :-
rdf_transaction(rdf_assert(s,p,o)),
rdf_transaction(rdf_retractall(s,p,o)),
rdf_transaction(rdf_assert(s,p,o)),
rdf_statistics(triples(Count)),
assertion(Count == 1).
/*******************************
* UNLOAD *
*******************************/
unload(1) :-
test_input('dc.rdfs', File),
rdf_load(File),
rdf_statistics(triples(T0)),
rdf_unload(File),
rdf_statistics(triples(T1)),
rdf_load(File),
rdf_statistics(triples(T2)),
assertion(T0 == T2),
assertion(T1 == 0).
/*******************************
* INDEXES *
*******************************/
warm(1) :-
rdf_warm_indexes.
/*******************************
* SCRIPTS *
*******************************/
:- dynamic
script_dir/1.
set_script_dir :-
script_dir(_),
!.
set_script_dir :-
find_script_dir(Dir),
assert(script_dir(Dir)).
find_script_dir(Dir) :-
prolog_load_context(file, File),
follow_links(File, RealFile),
file_directory_name(RealFile, Dir).
follow_links(File, RealFile) :-
read_link(File, _, RealFile),
!.
follow_links(File, File).
:- set_script_dir.
run_test_script(Script) :-
file_base_name(Script, Base),
file_name_extension(Pred, _, Base),
load_files(Script, [silent(true)]),
Pred.
run_test_scripts(Directory) :-
( script_dir(ScriptDir),
atomic_list_concat([ScriptDir, /, Directory], Dir),
exists_directory(Dir)
-> true
; Dir = Directory
),
atom_concat(Dir, '/*.pl', Pattern),
expand_file_name(Pattern, Files),
file_base_name(Dir, BaseDir),
format('Running scripts from ~w ', [BaseDir]), flush,
run_scripts(Files),
format(' done~n').
run_scripts([]).
run_scripts([H|T]) :-
( catch(run_test_script(H), Except, true)
-> ( var(Except)
-> put(.), flush
; Except = blocked(Reason)
-> assert(blocked(H, Reason)),
put(!), flush
; script_failed(H, Except)
)
; script_failed(H, fail)