Examples with KCoreVertexProgram ai.grakn.graql.internal.analytics.KCoreVertexProgram used on opensource projects

Example 1 with KCoreVertexProgram

use of ai.grakn.graql.internal.analytics.KCoreVertexProgram in project grakn by graknlabs.

the class TinkerComputeQueryRunner method run.

public ComputeJob<Map<String, Set<String>>> run(KCoreQuery query) {
    return runCompute(query, tinkerComputeQuery -> {
        long k = query.kValue();
        if (k < 2L)
            throw GraqlQueryException.kValueSmallerThanTwo();
        if (!tinkerComputeQuery.selectedTypesHaveInstance()) {
            return Collections.emptyMap();
        }
        ComputerResult result;
        Set<LabelId> subLabelIds = convertLabelsToIds(tinkerComputeQuery.subLabels());
        try {
            result = tinkerComputeQuery.compute(new KCoreVertexProgram(k), new ClusterMemberMapReduce(KCoreVertexProgram.K_CORE_LABEL), subLabelIds);
        } catch (NoResultException e) {
            return Collections.emptyMap();
        }
        return result.memory().get(ClusterMemberMapReduce.class.getName());
    });
}