Examples with CorenessQuery ai.grakn.graql.analytics.CorenessQuery used on opensource projects

Example 1 with CorenessQuery

use of ai.grakn.graql.analytics.CorenessQuery in project grakn by graknlabs.

the class TinkerComputeQueryRunner method run.

public ComputeJob<Map<Long, Set<String>>> run(CorenessQuery query) {
    return runCompute(query, tinkerComputeQuery -> {
        long k = query.minK();
        if (k < 2L)
            throw GraqlQueryException.kValueSmallerThanTwo();
        Set<Label> ofLabels;
        // Check if ofType is valid before returning emptyMap
        if (query.targetLabels().isEmpty()) {
            ofLabels = tinkerComputeQuery.subLabels();
        } else {
            ofLabels = query.targetLabels().stream().flatMap(typeLabel -> {
                Type type = tx.getSchemaConcept(typeLabel);
                if (type == null)
                    throw GraqlQueryException.labelNotFound(typeLabel);
                if (type.isRelationshipType())
                    throw GraqlQueryException.kCoreOnRelationshipType(typeLabel);
                return type.subs();
            }).map(SchemaConcept::getLabel).collect(Collectors.toSet());
        }
        Set<Label> subLabels = Sets.union(tinkerComputeQuery.subLabels(), ofLabels);
        if (!tinkerComputeQuery.selectedTypesHaveInstance()) {
            return Collections.emptyMap();
        }
        ComputerResult result;
        Set<LabelId> subLabelIds = convertLabelsToIds(subLabels);
        Set<LabelId> ofLabelIds = convertLabelsToIds(ofLabels);
        try {
            result = tinkerComputeQuery.compute(new CorenessVertexProgram(k), new DegreeDistributionMapReduce(ofLabelIds, CorenessVertexProgram.CORENESS), subLabelIds);
        } catch (NoResultException e) {
            return Collections.emptyMap();
        }
        return result.memory().get(DegreeDistributionMapReduce.class.getName());
    });
}