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

Example 1 with Label

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

the class MigratorTestUtils method getResources.

public static Stream<Attribute> getResources(GraknTx graph, Thing thing, Label label) {
    Role roleOwner = graph.getSchemaConcept(Schema.ImplicitType.HAS_OWNER.getLabel(label));
    Role roleOther = graph.getSchemaConcept(Schema.ImplicitType.HAS_VALUE.getLabel(label));
    Stream<Relationship> relations = thing.relationships(roleOwner);
    return relations.flatMap(r -> r.rolePlayers(roleOther)).map(Concept::asAttribute);
}

Example 2 with Label

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

the class EntityTest method whenAddingResourceToAnEntity_EnsureTheImplicitStructureIsCreated.

@Test
public void whenAddingResourceToAnEntity_EnsureTheImplicitStructureIsCreated() {
    Label resourceLabel = Label.of("A Attribute Thing");
    EntityType entityType = tx.putEntityType("A Thing");
    AttributeType<String> attributeType = tx.putAttributeType(resourceLabel, AttributeType.DataType.STRING);
    entityType.attribute(attributeType);
    Entity entity = entityType.addEntity();
    Attribute attribute = attributeType.putAttribute("A attribute thing");
    entity.attribute(attribute);
    Relationship relationship = entity.relationships().iterator().next();
    checkImplicitStructure(attributeType, relationship, entity, Schema.ImplicitType.HAS, Schema.ImplicitType.HAS_OWNER, Schema.ImplicitType.HAS_VALUE);
}

Example 3 with Label

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

the class RelationshipAtom method validateRelationPlayers.

private Set<String> validateRelationPlayers(Rule rule) {
    Set<String> errors = new HashSet<>();
    getRelationPlayers().forEach(rp -> {
        VarPatternAdmin role = rp.getRole().orElse(null);
        if (role == null) {
            errors.add(ErrorMessage.VALIDATION_RULE_ILLEGAL_HEAD_RELATION_WITH_AMBIGUOUS_ROLE.getMessage(rule.getThen(), rule.getLabel()));
        } else {
            Label roleLabel = role.getTypeLabel().orElse(null);
            if (roleLabel == null) {
                errors.add(ErrorMessage.VALIDATION_RULE_ILLEGAL_HEAD_RELATION_WITH_AMBIGUOUS_ROLE.getMessage(rule.getThen(), rule.getLabel()));
            } else {
                if (Schema.MetaSchema.isMetaLabel(roleLabel)) {
                    errors.add(ErrorMessage.VALIDATION_RULE_ILLEGAL_HEAD_RELATION_WITH_AMBIGUOUS_ROLE.getMessage(rule.getThen(), rule.getLabel()));
                }
                Role roleType = tx().getRole(roleLabel.getValue());
                if (roleType != null && roleType.isImplicit()) {
                    errors.add(ErrorMessage.VALIDATION_RULE_ILLEGAL_HEAD_RELATION_WITH_IMPLICIT_ROLE.getMessage(rule.getThen(), rule.getLabel()));
                }
            }
        }
    });
    return errors;
}

Example 4 with Label

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

the class ConceptBuilder method putSchemaConcept.

private SchemaConcept putSchemaConcept() {
    SchemaConcept superConcept = use(SUPER_CONCEPT);
    Label label = use(LABEL);
    SchemaConcept concept;
    if (superConcept.isEntityType()) {
        concept = executor.tx().putEntityType(label);
    } else if (superConcept.isRelationshipType()) {
        concept = executor.tx().putRelationshipType(label);
    } else if (superConcept.isRole()) {
        concept = executor.tx().putRole(label);
    } else if (superConcept.isAttributeType()) {
        AttributeType attributeType = superConcept.asAttributeType();
        AttributeType.DataType<?> dataType = useOrDefault(DATA_TYPE, attributeType.getDataType());
        concept = executor.tx().putAttributeType(label, dataType);
    } else if (superConcept.isRule()) {
        concept = executor.tx().putRule(label, use(WHEN), use(THEN));
    } else {
        throw GraqlQueryException.insertMetaType(label, superConcept);
    }
    setSuper(concept, superConcept);
    return concept;
}

Example 5 with Label

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

the class QueryVisitor method visitPropHas.

@Override
public UnaryOperator<VarPattern> visitPropHas(GraqlParser.PropHasContext ctx) {
    Label type = visitLabel(ctx.label());
    VarPattern relation = Optional.ofNullable(ctx.relation).map(this::getVariable).orElseGet(Graql::var);
    VarPattern resource = Optional.ofNullable(ctx.resource).map(this::getVariable).orElseGet(Graql::var);
    if (ctx.predicate() != null) {
        resource = resource.val(visitPredicate(ctx.predicate()));
    }
    VarPattern finalResource = resource;
    return var -> var.has(type, finalResource, relation);
}