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

Example 16 with SchemaConcept

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

the class LabelFragmentSet method tryExpandSubs.

/**
 * Expand a {@link LabelFragmentSet} to match all sub-concepts of the single existing {@link Label}.
 *
 * Returns null if there is not exactly one label any of the {@link Label}s mentioned are not in the knowledge base.
 */
@Nullable
LabelFragmentSet tryExpandSubs(Var typeVar, GraknTx tx) {
    if (labels().size() != 1)
        return null;
    Label oldLabel = Iterables.getOnlyElement(labels());
    SchemaConcept concept = tx.getSchemaConcept(oldLabel);
    if (concept == null)
        return null;
    Set<Label> newLabels = concept.subs().map(SchemaConcept::getLabel).collect(toSet());
    return new AutoValue_LabelFragmentSet(varProperty(), typeVar, ImmutableSet.copyOf(newLabels));
}

Example 17 with SchemaConcept

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

the class SchemaConceptImpl method superLoops.

private boolean superLoops() {
    // Check For Loop
    HashSet<SchemaConcept> foundTypes = new HashSet<>();
    SchemaConcept currentSuperType = sup();
    while (currentSuperType != null) {
        foundTypes.add(currentSuperType);
        currentSuperType = currentSuperType.sup();
        if (foundTypes.contains(currentSuperType)) {
            return true;
        }
    }
    return false;
}

Example 18 with SchemaConcept

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

the class GraknTxTest method checkThatMainCentralCacheIsNotAffectedByTransactionModifications.

@Test
public void checkThatMainCentralCacheIsNotAffectedByTransactionModifications() throws InvalidKBException, ExecutionException, InterruptedException {
    // Check Central cache is empty
    assertCacheOnlyContainsMetaTypes();
    Role r1 = tx.putRole("r1");
    Role r2 = tx.putRole("r2");
    EntityType e1 = tx.putEntityType("e1").plays(r1).plays(r2);
    RelationshipType rel1 = tx.putRelationshipType("rel1").relates(r1).relates(r2);
    // Purge the above concepts into the main cache
    tx.commit();
    tx = EmbeddedGraknSession.create(tx.keyspace(), Grakn.IN_MEMORY).open(GraknTxType.WRITE);
    // Check cache is in good order
    Collection<SchemaConcept> cachedValues = tx.getGlobalCache().getCachedTypes().values();
    assertTrue("Type [" + r1 + "] was not cached", cachedValues.contains(r1));
    assertTrue("Type [" + r2 + "] was not cached", cachedValues.contains(r2));
    assertTrue("Type [" + e1 + "] was not cached", cachedValues.contains(e1));
    assertTrue("Type [" + rel1 + "] was not cached", cachedValues.contains(rel1));
    assertThat(e1.plays().collect(toSet()), containsInAnyOrder(r1, r2));
    ExecutorService pool = Executors.newSingleThreadExecutor();
    // Mutate Schema in a separate thread
    pool.submit(() -> {
        GraknTx innerGraph = Grakn.session(Grakn.IN_MEMORY, tx.keyspace()).open(GraknTxType.WRITE);
        EntityType entityType = innerGraph.getEntityType("e1");
        Role role = innerGraph.getRole("r1");
        entityType.deletePlays(role);
    }).get();
    // Check the above mutation did not affect central repo
    SchemaConcept foundE1 = tx.getGlobalCache().getCachedTypes().get(e1.getLabel());
    assertTrue("Main cache was affected by transaction", foundE1.asType().plays().anyMatch(role -> role.equals(r1)));
}

Example 19 with SchemaConcept

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

the class GrpcServerIT method whenGettingASchemaConcept_TheInformationOnTheSchemaConceptIsCorrect.

@Test
public void whenGettingASchemaConcept_TheInformationOnTheSchemaConceptIsCorrect() {
    try (GraknTx remoteTx = remoteSession.open(GraknTxType.READ);
        GraknTx localTx = localSession.open(GraknTxType.READ)) {
        GetQuery query = remoteTx.graql().match(var("x").label("actor")).get();
        SchemaConcept remoteConcept = query.stream().findAny().get().get("x").asSchemaConcept();
        SchemaConcept localConcept = localTx.getConcept(remoteConcept.getId()).asSchemaConcept();
        assertEquals(localConcept.isImplicit(), remoteConcept.isImplicit());
        assertEquals(localConcept.getLabel(), remoteConcept.getLabel());
        assertEquals(localConcept.sup().getId(), remoteConcept.sup().getId());
        assertEqualConcepts(localConcept, remoteConcept, SchemaConcept::sups);
        assertEqualConcepts(localConcept, remoteConcept, SchemaConcept::subs);
    }
}

Example 20 with SchemaConcept

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

the class GrpcServerIT method whenDeletingAConcept_TheConceptIsDeleted.

@Test
public void whenDeletingAConcept_TheConceptIsDeleted() {
    Label label = Label.of("hello");
    try (GraknTx tx = localSession.open(GraknTxType.WRITE)) {
        tx.putEntityType(label);
        tx.commit();
    }
    try (GraknTx tx = remoteSession.open(GraknTxType.WRITE)) {
        SchemaConcept schemaConcept = tx.getSchemaConcept(label);
        assertFalse(schemaConcept.isDeleted());
        schemaConcept.delete();
        assertTrue(schemaConcept.isDeleted());
        tx.commit();
    }
    try (GraknTx tx = localSession.open(GraknTxType.WRITE)) {
        assertNull(tx.getSchemaConcept(label));
    }
}