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

Example 1 with EntityType

use of ai.grakn.concept.EntityType 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 EntityType

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

the class SchemaMutationTest method whenChangingSuperTypesUsingBatchGraph_Throw.

@Test
public void whenChangingSuperTypesUsingBatchGraph_Throw() {
    String entityTypeId1 = "entityType1";
    String entityTypeId2 = "entityType2";
    tx.putEntityType(entityTypeId1);
    tx.putEntityType(entityTypeId2);
    EmbeddedGraknTx<?> graknGraphBatch = batchTx();
    EntityType entityType1 = graknGraphBatch.getEntityType(entityTypeId1);
    EntityType entityType2 = graknGraphBatch.getEntityType(entityTypeId2);
    expectedException.expect(GraknTxOperationException.class);
    expectedException.expectMessage(GraknTxOperationException.schemaMutation().getMessage());
    entityType1.sup(entityType2);
}

Example 3 with EntityType

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

the class SchemaMutationTest method whenChangingTheSuperTypeOfAnEntityTypeWhichHasAResource_EnsureTheResourceIsStillAccessibleViaTheRelationTypeInstances_ByPreventingChange.

@Test
public void whenChangingTheSuperTypeOfAnEntityTypeWhichHasAResource_EnsureTheResourceIsStillAccessibleViaTheRelationTypeInstances_ByPreventingChange() {
    AttributeType<String> name = tx.putAttributeType("name", AttributeType.DataType.STRING);
    // Create a person and allow person to have a name
    EntityType person = tx.putEntityType("person").attribute(name);
    // Create a man which is a person and is therefore allowed to have a name
    EntityType man = tx.putEntityType("man").sup(person);
    RelationshipType has_name = tx.getRelationshipType("@has-name");
    // Create a Man and name him Bob
    Attribute<String> nameBob = name.putAttribute("Bob");
    man.addEntity().attribute(nameBob);
    // Get The Relationship which says that our man is name bob
    Relationship expectedEdge = Iterables.getOnlyElement(has_name.instances().collect(toSet()));
    Role hasNameOwner = tx.getRole("@has-name-owner");
    assertThat(expectedEdge.type().instances().collect(toSet()), hasItem(expectedEdge));
    expectedException.expect(GraknTxOperationException.class);
    expectedException.expectMessage(GraknTxOperationException.changingSuperWillDisconnectRole(person, tx.admin().getMetaEntityType(), hasNameOwner).getMessage());
    // Man is no longer a person and therefore is not allowed to have a name
    man.sup(tx.admin().getMetaEntityType());
}

Example 4 with EntityType

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

the class PostProcessingTest method whenShardingThresholdIsBreached_ShardTypes.

@Test
public void whenShardingThresholdIsBreached_ShardTypes() {
    Keyspace keyspace = SampleKBLoader.randomKeyspace();
    EntityType et1;
    EntityType et2;
    // Create Simple GraknTx
    try (EmbeddedGraknTx<?> graknTx = EmbeddedGraknSession.create(keyspace, engine.uri().toString()).open(GraknTxType.WRITE)) {
        et1 = graknTx.putEntityType("et1");
        et2 = graknTx.putEntityType("et2");
        graknTx.commitSubmitNoLogs();
    }
    checkShardCount(keyspace, et1, 1);
    checkShardCount(keyspace, et2, 1);
    // Add new counts
    createAndUploadCountCommitLog(keyspace, et1.getId(), 99_999L);
    createAndUploadCountCommitLog(keyspace, et2.getId(), 99_999L);
    checkShardCount(keyspace, et1, 1);
    checkShardCount(keyspace, et2, 1);
    // Add new counts
    createAndUploadCountCommitLog(keyspace, et1.getId(), 2L);
    createAndUploadCountCommitLog(keyspace, et2.getId(), 1L);
    checkShardCount(keyspace, et1, 2);
    checkShardCount(keyspace, et2, 1);
}

Example 5 with EntityType

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

the class EntityTest method whenCreatingAnEntityAndNotLinkingARequiredKey_Throw.

@Test
public void whenCreatingAnEntityAndNotLinkingARequiredKey_Throw() throws InvalidKBException {
    String resourceTypeId = "A Attribute Thing";
    EntityType entityType = tx.putEntityType("A Thing");
    AttributeType<String> attributeType = tx.putAttributeType(resourceTypeId, AttributeType.DataType.STRING);
    entityType.key(attributeType);
    entityType.addEntity();
    expectedException.expect(InvalidKBException.class);
    tx.commit();
}