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

Example 56 with Label

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

the class GraqlCompleter method create.

public static GraqlCompleter create(GraknSession session) {
    ImmutableSet<Label> labels;
    try (GraknAdmin tx = session.open(GraknTxType.READ).admin()) {
        Stream<SchemaConcept> metaConcepts = Stream.of(tx.getMetaConcept(), tx.getMetaRole(), tx.getMetaRule()).flatMap(SchemaConcept::subs);
        labels = metaConcepts.map(SchemaConcept::getLabel).collect(toImmutableSet());
    }
    return new GraqlCompleter(labels);
}

Example 57 with Label

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

the class HasAttributeTypeProperty method of.

/**
 * @throws GraqlQueryException if no label is specified on {@code resourceType}
 */
public static HasAttributeTypeProperty of(VarPatternAdmin resourceType, boolean required) {
    Label resourceLabel = resourceType.getTypeLabel().orElseThrow(() -> GraqlQueryException.noLabelSpecifiedForHas(resourceType));
    VarPattern role = Graql.label(Schema.MetaSchema.ROLE.getLabel());
    VarPatternAdmin ownerRole = var().sub(role).admin();
    VarPatternAdmin valueRole = var().sub(role).admin();
    VarPattern relationType = var().sub(Graql.label(Schema.MetaSchema.RELATIONSHIP.getLabel()));
    // If a key, limit only to the implicit key type
    if (required) {
        ownerRole = ownerRole.label(KEY_OWNER.getLabel(resourceLabel)).admin();
        valueRole = valueRole.label(KEY_VALUE.getLabel(resourceLabel)).admin();
        relationType = relationType.label(KEY.getLabel(resourceLabel));
    }
    VarPatternAdmin relationOwner = relationType.relates(ownerRole).admin();
    VarPatternAdmin relationValue = relationType.admin().var().relates(valueRole).admin();
    return new AutoValue_HasAttributeTypeProperty(resourceType, ownerRole, valueRole, relationOwner, relationValue, required);
}

Example 58 with Label

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

the class HasAttributeTypeProperty method mapToAtom.

@Override
public Atomic mapToAtom(VarPatternAdmin var, Set<VarPatternAdmin> vars, ReasonerQuery parent) {
    // NB: HasResourceType is a special case and it doesn't allow variables as resource types
    Var varName = var.var().asUserDefined();
    Label label = this.resourceType().getTypeLabel().orElse(null);
    Var predicateVar = var().asUserDefined();
    SchemaConcept schemaConcept = parent.tx().getSchemaConcept(label);
    ConceptId predicateId = schemaConcept != null ? schemaConcept.getId() : null;
    // isa part
    VarPatternAdmin resVar = varName.has(Graql.label(label)).admin();
    return HasAtom.create(resVar, predicateVar, predicateId, parent);
}

Example 59 with Label

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

the class GraknTxPropertyTest method whenCallingGetSchemaConceptWithAnIncorrectGeneric_ItThrows.

@Property
public void whenCallingGetSchemaConceptWithAnIncorrectGeneric_ItThrows(@Open GraknTx graph, @FromTx Type type) {
    assumeFalse(type.isRole());
    Label label = type.getLabel();
    exception.expect(ClassCastException.class);
    // We have to assign the result for the cast to happen
    // noinspection unused
    Role role = graph.getSchemaConcept(label);
}

Example 60 with Label

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

the class GraknTxPropertyTest method whenCallingGetRule_TheResultIsTheSameAsGetSchemaConcept.

@Property
public void whenCallingGetRule_TheResultIsTheSameAsGetSchemaConcept(@Open GraknTx graph, @FromTx Rule type) {
    Label label = type.getLabel();
    assertSameResult(() -> graph.getSchemaConcept(label), () -> graph.getRule(label.getValue()));
}