Examples with ByteArray com.vaticle.typedb.core.common.collection.ByteArray used on opensource projects

Example 1 with ByteArray

use of com.vaticle.typedb.core.common.collection.ByteArray in project grakn by graknlabs.

the class EncodingTest method encoded_keys_are_correct.

@Test
public void encoded_keys_are_correct() {
    try (CoreTransaction transaction = session.transaction(WRITE)) {
        Storage.Data storage = transaction.traversal().graph().data().storage();
        assertEquals(0, vertexElements(storage).size());
        assertEquals(0, variableStartEdgeElements(storage).size());
        assertEquals(0, fixedStartEdgeElements(storage).size());
        assertEquals(0, optimisationEdgeElements(storage).size());
        transaction.query().insert(TypeQL.parseQuery("insert " + "$p isa person, has name 'Alice';" + "$c isa company, has company-id 10;" + "(employer: $c, employee: $p) isa employment;").asInsert());
        transaction.commit();
    }
    try (CoreTransaction transaction = session.transaction(WRITE)) {
        GraphManager graph = transaction.traversal().graph();
        Storage.Data storage = graph.data().storage();
        List<KeyValue<RawKey, ByteArray>> vertexKVs = vertexElements(storage);
        assertTrue(iterate(vertexKVs).allMatch(kv -> kv.value().isEmpty()));
        List<ByteArray> vertices = iterate(vertexKVs).map(kv -> kv.key().bytes()).toList();
        // we must have exactly the expected set of vertex bytes
        assertEquals(7, vertices.size());
        ByteArray personIID = expectedIID(graph, Label.of("person"), 0);
        assertTrue(vertices.contains(personIID));
        ByteArray companyIID = expectedIID(graph, Label.of("company"), 0);
        assertTrue(vertices.contains(companyIID));
        ByteArray employmentIID = expectedIID(graph, Label.of("employment"), 0);
        assertTrue(vertices.contains(employmentIID));
        ByteArray employeeRoleIID = expectedIID(graph, Label.of("employee", "employment"), 0);
        assertTrue(vertices.contains(employeeRoleIID));
        ByteArray employerRoleIID = expectedIID(graph, Label.of("employer", "employment"), 0);
        assertTrue(vertices.contains(employerRoleIID));
        ByteArray nameAliceIID = expectedAttributeIID(graph, Label.of("name"), "Alice");
        assertTrue(vertices.contains(nameAliceIID));
        ByteArray companyId10IID = expectedAttributeIID(graph, Label.of("company-id"), 10);
        assertTrue(vertices.contains(companyId10IID));
        // we must have exactly the right set of fixed length edges: relates, plays, and forward has
        List<KeyValue<RawKey, ByteArray>> fixedKVs = fixedStartEdgeElements(storage);
        assertTrue(iterate(fixedKVs).allMatch(kv -> kv.value().isEmpty()));
        List<ByteArray> fixed = iterate(fixedKVs).map(kv -> kv.key().bytes()).toList();
        assertEquals(10, fixed.size());
        assertTrue(fixed.contains(join(personIID, HAS.forward().bytes(), nameAliceIID)));
        assertTrue(fixed.contains(join(personIID, PLAYING.forward().bytes(), employeeRoleIID)));
        assertTrue(fixed.contains(join(employeeRoleIID, PLAYING.backward().bytes(), personIID)));
        assertTrue(fixed.contains(join(employeeRoleIID, RELATING.backward().bytes(), employmentIID)));
        assertTrue(fixed.contains(join(employmentIID, RELATING.forward().bytes(), employeeRoleIID)));
        assertTrue(fixed.contains(join(employmentIID, RELATING.forward().bytes(), employerRoleIID)));
        assertTrue(fixed.contains(join(employerRoleIID, RELATING.backward().bytes(), employmentIID)));
        assertTrue(fixed.contains(join(employerRoleIID, PLAYING.backward().bytes(), companyIID)));
        assertTrue(fixed.contains(join(companyIID, PLAYING.forward().bytes(), employerRoleIID)));
        assertTrue(fixed.contains(join(companyIID, HAS.forward().bytes(), companyId10IID)));
        // we must have exactly the right set of variable length edges: backward has
        List<KeyValue<RawKey, ByteArray>> variableKVs = variableStartEdgeElements(storage);
        assertTrue(iterate(variableKVs).allMatch(kv -> kv.value().isEmpty()));
        List<ByteArray> variable = iterate(variableKVs).map(kv -> kv.key().bytes()).toList();
        assertEquals(2, variable.size());
        assertTrue(variable.contains(join(nameAliceIID, HAS.backward().bytes(), personIID)));
        assertTrue(variable.contains(join(companyId10IID, HAS.backward().bytes(), companyIID)));
        // we must have exactly the right set of optimisation edges: role player
        List<KeyValue<RawKey, ByteArray>> optimisationKVs = optimisationEdgeElements(storage);
        assertTrue(iterate(optimisationKVs).allMatch(kv -> kv.value().isEmpty()));
        List<ByteArray> optimisation = iterate(optimisationKVs).map(kv -> kv.key().bytes()).toList();
        assertEquals(4, optimisation.size());
        TypeVertex employerRoleType = graph.schema().getType(Label.of("employer", "employment"));
        TypeVertex employeeRoleType = graph.schema().getType(Label.of("employee", "employment"));
        assertTrue(optimisation.contains(join(personIID, ROLEPLAYER.backward().bytes(), employeeRoleType.iid().bytes(), employmentIID, employeeRoleIID.view(1 + employeeRoleType.iid().bytes().length()))));
        assertTrue(optimisation.contains(join(employmentIID, ROLEPLAYER.forward().bytes(), employeeRoleType.iid().bytes(), personIID, employeeRoleIID.view(1 + employeeRoleType.iid().bytes().length()))));
        assertTrue(optimisation.contains(join(companyIID, ROLEPLAYER.backward().bytes(), employerRoleType.iid().bytes(), employmentIID, employerRoleIID.view(1 + employerRoleType.iid().bytes().length()))));
        assertTrue(optimisation.contains(join(employmentIID, ROLEPLAYER.forward().bytes(), employerRoleType.iid().bytes(), companyIID, employerRoleIID.view(1 + employerRoleType.iid().bytes().length()))));
    }
}

Example 2 with ByteArray

use of com.vaticle.typedb.core.common.collection.ByteArray in project grakn by graknlabs.

the class TypeGraph method getType.

public TypeVertex getType(String label, @Nullable String scope) {
    assert storage.isOpen();
    String scopedLabel = scopedLabel(label, scope);
    try {
        if (!isReadOnly) {
            multiLabelLock.readLock().lock();
            singleLabelLocks.computeIfAbsent(scopedLabel, x -> newReadWriteLock()).readLock().lock();
        }
        TypeVertex vertex = typesByLabel.get(scopedLabel);
        if (vertex != null)
            return vertex;
        IndexIID.Type index = IndexIID.Type.Label.of(label, scope);
        ByteArray iid = storage.get(index);
        if (iid != null) {
            vertex = typesByIID.computeIfAbsent(VertexIID.Type.of(iid), i -> new TypeVertexImpl.Persisted(this, i, label, scope));
            typesByLabel.putIfAbsent(scopedLabel, vertex);
        }
        return vertex;
    } finally {
        if (!isReadOnly) {
            singleLabelLocks.get(scopedLabel).readLock().unlock();
            multiLabelLock.readLock().unlock();
        }
    }
}

Example 3 with ByteArray

use of com.vaticle.typedb.core.common.collection.ByteArray in project grakn by graknlabs.

the class RocksIterator method hasValidNext.

synchronized boolean hasValidNext() {
    ByteArray key;
    if (!internalRocksIterator.isValid() || !((key = ByteArray.of(internalRocksIterator.key())).hasPrefix(prefix.bytes()))) {
        recycle();
        return false;
    }
    next = KeyValue.of(prefix.builder().build(key), ByteArray.of(internalRocksIterator.value()));
    state = State.FETCHED;
    return true;
}