Examples with Rule com.vaticle.typedb.core.logic.Rule used on opensource projects

Example 31 with Rule

use of com.vaticle.typedb.core.logic.Rule in project grakn by graknlabs.

the class UnifyRelationConcludableTest method relation_variable_multiple_identical_unifiers.

// [REFLEXIVE rule, Fewer roleplayers in parent]
@Test
public void relation_variable_multiple_identical_unifiers() {
    String conjunction = "{ (employee: $p) isa employment; }";
    Set<Concludable> concludables = Concludable.create(resolvedConjunction(conjunction, logicMgr));
    Concludable.Relation queryConcludable = concludables.iterator().next().asRelation();
    Rule rule = createRule("the-same-person-is-employed-twice", "{ $x isa person; $y isa person; $employment type employment; $employee type employment:employee; }", "($employee: $x, $employee: $x) isa $employment", logicMgr);
    FunctionalIterator<Unifier> unifier = queryConcludable.unify(rule.conclusion(), conceptMgr);
    Set<Map<String, Set<String>>> result = unifier.map(u -> getStringMapping(u.mapping())).toSet();
    Set<Map<String, Set<String>>> expected = set(new HashMap<String, Set<String>>() {

        {
            put("$p", set("$x"));
            put("$_0", set("$_0"));
        }
    });
    assertEquals(expected, result);
}

Example 32 with Rule

use of com.vaticle.typedb.core.logic.Rule in project grakn by graknlabs.

the class UnifyRelationConcludableTest method unify_relation_many_to_many.

// [many2many]
@Test
public void unify_relation_many_to_many() {
    String conjunction = "{ (employee: $p, employee: $q) isa employment; }";
    Set<Concludable> concludables = Concludable.create(resolvedConjunction(conjunction, logicMgr));
    Concludable.Relation queryConcludable = concludables.iterator().next().asRelation();
    Rule rule = createRule("three-people-are-employed", "{ $x isa person; $y isa person; $z isa person; }", "(employee: $x, employee: $y, employee: $z) isa employment", logicMgr);
    FunctionalIterator<Unifier> unifier = queryConcludable.unify(rule.conclusion(), conceptMgr);
    Set<Map<String, Set<String>>> result = unifier.map(u -> getStringMapping(u.mapping())).toSet();
    Set<Map<String, Set<String>>> expected = set(new HashMap<String, Set<String>>() {

        {
            put("$p", set("$x"));
            put("$q", set("$y"));
            put("$_0", set("$_0"));
        }
    }, new HashMap<String, Set<String>>() {

        {
            put("$p", set("$x"));
            put("$q", set("$z"));
            put("$_0", set("$_0"));
        }
    }, new HashMap<String, Set<String>>() {

        {
            put("$p", set("$y"));
            put("$q", set("$x"));
            put("$_0", set("$_0"));
        }
    }, new HashMap<String, Set<String>>() {

        {
            put("$p", set("$y"));
            put("$q", set("$z"));
            put("$_0", set("$_0"));
        }
    }, new HashMap<String, Set<String>>() {

        {
            put("$p", set("$z"));
            put("$q", set("$x"));
            put("$_0", set("$_0"));
        }
    }, new HashMap<String, Set<String>>() {

        {
            put("$p", set("$z"));
            put("$q", set("$y"));
            put("$_0", set("$_0"));
        }
    });
    assertEquals(expected, result);
}

Example 33 with Rule

use of com.vaticle.typedb.core.logic.Rule in project grakn by graknlabs.

the class UnifyIsaConcludableTest method isa_exact_unifies_rule_relation_exact.

@Test
public void isa_exact_unifies_rule_relation_exact() {
    String conjunction = "{ $a isa relation; }";
    Set<Concludable> concludables = Concludable.create(resolvedConjunction(conjunction, logicMgr));
    Concludable.Isa queryConcludable = concludables.iterator().next().asIsa();
    Rule rule = createRule("isa-rule", "{ $x isa person; }", "(employee: $x) isa employment", logicMgr);
    List<Unifier> unifiers = queryConcludable.unify(rule.conclusion(), conceptMgr).toList();
    assertEquals(1, unifiers.size());
    Unifier unifier = unifiers.get(0);
    Map<String, Set<String>> result = getStringMapping(unifier.mapping());
    HashMap<String, Set<String>> expected = new HashMap<String, Set<String>>() {

        {
            put("$a", set("$_0"));
        }
    };
    assertEquals(expected, result);
    // test requirements
    assertEquals(1, unifier.requirements().types().size());
    assertEquals(1, unifier.requirements().isaExplicit().size());
    assertEquals(set(Label.of("employment")), unifier.requirements().isaExplicit().get(Identifier.Variable.name("a")));
    assertEquals(0, unifier.requirements().predicates().size());
    // test filter allows a valid answer
    Map<Identifier.Variable, Concept> concepts = map(pair(Identifier.Variable.anon(0), instanceOf("employment")), pair(Identifier.Variable.label("employment"), conceptMgr.getThingType("employment")));
    FunctionalIterator<ConceptMap> unified = unifier.unUnify(concepts, new Unifier.Requirements.Instance(map()));
    assertTrue(unified.hasNext());
    assertEquals(1, unified.next().concepts().size());
    // filter out invalid type
    concepts = map(pair(Identifier.Variable.anon(0), instanceOf("age")), pair(Identifier.Variable.label("employment"), conceptMgr.getThingType("age")));
    unified = unifier.unUnify(concepts, new Unifier.Requirements.Instance(map()));
    assertFalse(unified.hasNext());
}

Example 34 with Rule

use of com.vaticle.typedb.core.logic.Rule in project grakn by graknlabs.

the class UnifyIsaConcludableTest method isa_variable_unifies_rule_has_exact.

@Test
public void isa_variable_unifies_rule_has_exact() {
    String conjunction = "{ $a isa $t; }";
    Set<Concludable> concludables = Concludable.create(resolvedConjunction(conjunction, logicMgr));
    Concludable.Isa queryConcludable = concludables.iterator().next().asIsa();
    Rule rule = createRule("isa-rule", "{ $x isa person; }", "$x has first-name \"john\"", logicMgr);
    List<Unifier> unifiers = queryConcludable.unify(rule.conclusion(), conceptMgr).toList();
    assertEquals(1, unifiers.size());
    Unifier unifier = unifiers.get(0);
    Map<String, Set<String>> result = getStringMapping(unifier.mapping());
    Map<String, Set<String>> expected = new HashMap<String, Set<String>>() {

        {
            put("$a", set("$_0"));
            put("$t", set("$_first-name"));
        }
    };
    assertEquals(expected, result);
    // test requirements
    assertEquals(1, unifier.requirements().types().size());
    assertEquals(1, unifier.requirements().isaExplicit().size());
    assertEquals(0, unifier.requirements().predicates().size());
}

Example 35 with Rule

use of com.vaticle.typedb.core.logic.Rule in project grakn by graknlabs.

the class UnifyIsaConcludableTest method isa_variable_with_type_prunes_irrelevant_rules.

/*
    Test unifier pruning using type information
     */
@Test
public void isa_variable_with_type_prunes_irrelevant_rules() {
    String conjunction = "{ $a isa $t; $t type company; }";
    Set<Concludable> concludables = Concludable.create(resolvedConjunction(conjunction, logicMgr));
    Concludable.Isa queryConcludable = concludables.iterator().next().asIsa();
    Rule rule = createRule("isa-rule", "{ $x isa person; }", "$x has first-name \"john\"", logicMgr);
    List<Unifier> unifiers = queryConcludable.unify(rule.conclusion(), conceptMgr).toList();
    assertEquals(0, unifiers.size());
    Rule rule2 = createRule("isa-rule-2", "{ $x isa person; }", "(employee: $x) isa employment", logicMgr);
    unifiers = queryConcludable.unify(rule.conclusion(), conceptMgr).toList();
    assertEquals(0, unifiers.size());
    Rule rule3 = createRule("isa-rule-3", "{ $x isa person; $role-type type employment:employee; $rel-type relates $role-type; }", "($role-type: $x) isa $rel-type", logicMgr);
    unifiers = queryConcludable.unify(rule.conclusion(), conceptMgr).toList();
    assertEquals(0, unifiers.size());
}