Examples with Entity ai.grakn.concept.Entity used on opensource projects

Example 1 with Entity

use of ai.grakn.concept.Entity in project grakn by graknlabs.

the class BenchmarkTests method nonRecursiveChainOfRules.

/**
 * Executes a scalability test defined in terms of the number of rules in the system. Creates a simple rule chain:
 *
 * R_i(x, y) := R_{i-1}(x, y);     i e [1, N]
 *
 * with a single initial relation instance R_0(a ,b)
 */
@Test
public void nonRecursiveChainOfRules() {
    final int N = 200;
    LOG.debug(new Object() {
    }.getClass().getEnclosingMethod().getName());
    GraknSession graknSession = sessionContext.newSession();
    // NB: loading data here as defining it as KB and using graql api leads to circular dependencies
    try (GraknTx tx = graknSession.open(GraknTxType.WRITE)) {
        Role fromRole = tx.putRole("fromRole");
        Role toRole = tx.putRole("toRole");
        RelationshipType relation0 = tx.putRelationshipType("relation0").relates(fromRole).relates(toRole);
        for (int i = 1; i <= N; i++) {
            tx.putRelationshipType("relation" + i).relates(fromRole).relates(toRole);
        }
        EntityType genericEntity = tx.putEntityType("genericEntity").plays(fromRole).plays(toRole);
        Entity fromEntity = genericEntity.addEntity();
        Entity toEntity = genericEntity.addEntity();
        relation0.addRelationship().addRolePlayer(fromRole, fromEntity).addRolePlayer(toRole, toEntity);
        for (int i = 1; i <= N; i++) {
            Var fromVar = Graql.var().asUserDefined();
            Var toVar = Graql.var().asUserDefined();
            VarPattern rulePattern = Graql.label("rule" + i).when(Graql.and(Graql.var().rel(Graql.label(fromRole.getLabel()), fromVar).rel(Graql.label(toRole.getLabel()), toVar).isa("relation" + (i - 1)))).then(Graql.and(Graql.var().rel(Graql.label(fromRole.getLabel()), fromVar).rel(Graql.label(toRole.getLabel()), toVar).isa("relation" + i)));
            tx.graql().define(rulePattern).execute();
        }
        tx.commit();
    }
    try (GraknTx tx = graknSession.open(GraknTxType.READ)) {
        final long limit = 1;
        String queryPattern = "(fromRole: $x, toRole: $y) isa relation" + N + ";";
        String queryString = "match " + queryPattern + " get;";
        String limitedQueryString = "match " + queryPattern + "limit " + limit + ";" + "get;";
        assertEquals(executeQuery(queryString, tx, "full").size(), limit);
        assertEquals(executeQuery(limitedQueryString, tx, "limit").size(), limit);
    }
}

Example 2 with Entity

use of ai.grakn.concept.Entity in project grakn by graknlabs.

the class CastingTest method whenCreatingRelation_EnsureRolePlayerContainsInstanceRoleTypeRelationTypeAndRelation.

@Test
public void whenCreatingRelation_EnsureRolePlayerContainsInstanceRoleTypeRelationTypeAndRelation() {
    Entity e1 = entityType.addEntity();
    RelationshipImpl relation = (RelationshipImpl) relationshipType.addRelationship().addRolePlayer(role1, e1);
    Set<Casting> castings = relation.reified().get().castingsRelation().collect(Collectors.toSet());
    castings.forEach(rolePlayer -> {
        assertEquals(e1, rolePlayer.getRolePlayer());
        assertEquals(role1, rolePlayer.getRole());
        assertEquals(relationshipType, rolePlayer.getRelationshipType());
        assertEquals(relation, rolePlayer.getRelationship());
    });
}

Example 3 with Entity

use of ai.grakn.concept.Entity in project grakn by graknlabs.

the class CastingTest method whenUpdatingRelation_EnsureRolePlayersAreUpdated.

@Test
public void whenUpdatingRelation_EnsureRolePlayersAreUpdated() {
    Entity e1 = entityType.addEntity();
    Entity e3 = entityType.addEntity();
    RelationshipImpl relation = (RelationshipImpl) relationshipType.addRelationship().addRolePlayer(role1, e1);
    Set<Thing> things = relation.reified().get().castingsRelation().map(Casting::getRolePlayer).collect(Collectors.toSet());
    Set<Role> roles = relation.reified().get().castingsRelation().map(Casting::getRole).collect(Collectors.toSet());
    assertThat(things, containsInAnyOrder(e1));
    assertThat(roles, containsInAnyOrder(role1));
    // Now Update
    relation.addRolePlayer(role2, e1).addRolePlayer(role3, e3);
    things = relation.reified().get().castingsRelation().map(Casting::getRolePlayer).collect(Collectors.toSet());
    roles = relation.reified().get().castingsRelation().map(Casting::getRole).collect(Collectors.toSet());
    assertThat(things, containsInAnyOrder(e1, e3));
    assertThat(roles, containsInAnyOrder(role1, role2, role3));
}

Example 4 with Entity

use of ai.grakn.concept.Entity in project grakn by graknlabs.

the class MigratorTestUtils method assertPetGraphCorrect.

/**
 * Check that the pet graph has been loaded correctly
 */
public static void assertPetGraphCorrect(GraknSession session) {
    try (GraknTx graph = session.open(GraknTxType.READ)) {
        Collection<Entity> pets = graph.getEntityType("pet").instances().collect(Collectors.toSet());
        assertEquals(9, pets.size());
        Collection<Entity> cats = graph.getEntityType("cat").instances().collect(Collectors.toSet());
        assertEquals(2, cats.size());
        Collection<Entity> hamsters = graph.getEntityType("hamster").instances().collect(Collectors.toSet());
        assertEquals(1, hamsters.size());
        AttributeType<String> name = graph.getAttributeType("name");
        AttributeType<String> death = graph.getAttributeType("death");
        Entity puffball = name.getAttribute("Puffball").ownerInstances().iterator().next().asEntity();
        assertEquals(0, puffball.attributes(death).count());
        Entity bowser = name.getAttribute("Bowser").ownerInstances().iterator().next().asEntity();
        assertEquals(1, bowser.attributes(death).count());
    }
}

Example 5 with Entity

use of ai.grakn.concept.Entity in project grakn by graknlabs.

the class MigratorTestUtils method assertPokemonGraphCorrect.

/**
 * Check that the pokemon graph has been loaded correctly
 */
public static void assertPokemonGraphCorrect(GraknSession session) {
    try (GraknTx graph = session.open(GraknTxType.READ)) {
        Collection<Entity> pokemon = graph.getEntityType("pokemon").instances().collect(Collectors.toSet());
        assertEquals(9, pokemon.size());
        AttributeType<String> typeid = graph.getAttributeType("type-id");
        AttributeType<String> pokedexno = graph.getAttributeType("pokedex-no");
        Entity grass = typeid.getAttribute("12").ownerInstances().iterator().next().asEntity();
        Entity poison = typeid.getAttribute("4").ownerInstances().iterator().next().asEntity();
        Entity bulbasaur = pokedexno.getAttribute("1").ownerInstances().iterator().next().asEntity();
        RelationshipType relation = graph.getRelationshipType("has-type");
        assertNotNull(grass);
        assertNotNull(poison);
        assertNotNull(bulbasaur);
        assertRelationBetweenInstancesExists(graph, bulbasaur, grass, relation.getLabel());
        assertRelationBetweenInstancesExists(graph, bulbasaur, poison, relation.getLabel());
    }
}