Examples with RuleSet fr.lirmm.graphik.graal.api.core.RuleSet used on opensource projects

Example 36 with RuleSet

use of fr.lirmm.graphik.graal.api.core.RuleSet in project graal by graphik-team.

the class BackwardChainingTest method issue22.

/**
 * Given p(X,Y) :- q(X,Y). q(X,Y) :- a(X), p(X,Y). Then rewrite(?(X) :-
 * q(X,Y), p(Y,Z).) Return ?(X) :- q(X,Y), p(Y,Z). ?(X) :- a(X), p(X,Y),
 * p(Y,Z). ?(X) :- q(X,Y), q(Y,Z). ?(X) :- a(X), p(X,Y), q(Y,Z).
 *
 * @param compilation
 * @param operator
 * @throws IteratorException
 * @throws ParseException
 */
@Theory
public void issue22(RulesCompilation compilation, RewritingOperator operator) throws IteratorException, ParseException {
    RuleSet rules = new LinkedListRuleSet();
    rules.add(DlgpParser.parseRule("p(X,Y) :- q(X,Y)."));
    rules.add(DlgpParser.parseRule("q(X,Y) :- a(X), p(X,Y)."));
    ConjunctiveQuery query = DlgpParser.parseQuery("?(X) :- q(X,Y), p(Y,Z).");
    compilation.compile(rules.iterator());
    PureRewriter bc = new PureRewriter(operator, true);
    CloseableIterator<? extends ConjunctiveQuery> it = bc.execute(query, rules, compilation);
    int i = count(it);
    Assert.assertEquals(4, i);
}

Example 37 with RuleSet

use of fr.lirmm.graphik.graal.api.core.RuleSet in project graal by graphik-team.

the class ConjunctiveQueryWithCompilation method issue34.

@Theory
public void issue34(Homomorphism<ConjunctiveQuery, AtomSet> hh, RulesCompilationFactory factory, AtomSet store) throws Exception {
    Assume.assumeTrue(hh instanceof HomomorphismWithCompilation);
    HomomorphismWithCompilation<ConjunctiveQuery, AtomSet> h = (HomomorphismWithCompilation<ConjunctiveQuery, AtomSet>) hh;
    store.add(DlgpParser.parseAtom("<Q>(a,b)."));
    RuleSet rules = new LinkedListRuleSet();
    rules.add(DlgpParser.parseRule("<P>(X,Y) :- <Q>(Y,X)."));
    RulesCompilation comp = factory.create();
    comp.compile(rules.iterator());
    StaticChase.executeChase(store, rules);
    InMemoryAtomSet query1 = new LinkedListAtomSet();
    query1.add(DlgpParser.parseAtom("<P>(a,Y)."));
    CloseableIterator<Substitution> results = h.execute(new DefaultConjunctiveQuery(query1), store, comp);
    Assert.assertFalse(results.hasNext());
    results.close();
}

Example 38 with RuleSet

use of fr.lirmm.graphik.graal.api.core.RuleSet in project graal by graphik-team.

the class ConjunctiveQueryWithCompilation method issue35.

@Theory
public void issue35(Homomorphism<ConjunctiveQuery, AtomSet> hh, RulesCompilationFactory factory, AtomSet store) throws Exception {
    Assume.assumeFalse(store instanceof TripleStore);
    Assume.assumeTrue(hh instanceof HomomorphismWithCompilation);
    HomomorphismWithCompilation<ConjunctiveQuery, AtomSet> h = (HomomorphismWithCompilation<ConjunctiveQuery, AtomSet>) hh;
    store.addAll(DlgpParser.parseAtomSet("<P>(a,a), <R>(a,b,b)."));
    RuleSet rules = new LinkedListRuleSet();
    rules.add(DlgpParser.parseRule("<Q>(X,Y,X) :- <P>(X,Y)."));
    ConjunctiveQuery query = DlgpParser.parseQuery("? :- <Q>(X,Y,Y), <R>(X,Y,Z).");
    RulesCompilation comp = factory.create();
    comp.compile(rules.iterator());
    StaticChase.executeChase(store, rules);
    CloseableIterator<Substitution> results = h.execute(new DefaultConjunctiveQuery(query), store, comp);
    Assert.assertFalse(results.hasNext());
    results.close();
}

Example 39 with RuleSet

use of fr.lirmm.graphik.graal.api.core.RuleSet in project graal by graphik-team.

the class ConjunctiveQueryWithCompilation method test2.

@Theory
public void test2(Homomorphism<ConjunctiveQuery, AtomSet> hh, RulesCompilationFactory factory, AtomSet store) throws Exception {
    Assume.assumeTrue(hh instanceof HomomorphismWithCompilation);
    HomomorphismWithCompilation<ConjunctiveQuery, AtomSet> h = (HomomorphismWithCompilation<ConjunctiveQuery, AtomSet>) hh;
    store.add(DlgpParser.parseAtom("<P>(a,b)."));
    RuleSet rules = new LinkedListRuleSet();
    rules.add(DlgpParser.parseRule("<Q>(X,Y) :- <P>(Y,X)."));
    RulesCompilation comp = factory.create();
    comp.compile(rules.iterator());
    StaticChase.executeChase(store, rules);
    CloseableIterator<Substitution> results = h.execute(DlgpParser.parseQuery("?(X,Y) :- <Q>(X,Y)."), store, comp);
    Assert.assertTrue(results.hasNext());
    Substitution next = results.next();
    Assert.assertEquals(DefaultTermFactory.instance().createConstant("a"), next.createImageOf(DefaultTermFactory.instance().createVariable("Y")));
    Assert.assertEquals(DefaultTermFactory.instance().createConstant("b"), next.createImageOf(DefaultTermFactory.instance().createVariable("X")));
    Assert.assertFalse(results.hasNext());
    results.close();
}