Examples with ShowStatementPlan com.hazelcast.jet.sql.impl.SqlPlanImpl.ShowStatementPlan used on opensource projects

Example 1 with ShowStatementPlan

use of com.hazelcast.jet.sql.impl.SqlPlanImpl.ShowStatementPlan in project hazelcast by hazelcast.

the class PlanExecutor method execute.

SqlResult execute(ShowStatementPlan plan) {
    Stream<String> rows;
    switch(plan.getShowTarget()) {
        case MAPPINGS:
            rows = catalog.getMappingNames().stream();
            break;
        case VIEWS:
            rows = catalog.getViewNames().stream();
            break;
        case JOBS:
            assert plan.getShowTarget() == ShowStatementTarget.JOBS;
            NodeEngine nodeEngine = getNodeEngine(hazelcastInstance);
            JetServiceBackend jetServiceBackend = nodeEngine.getService(JetServiceBackend.SERVICE_NAME);
            rows = jetServiceBackend.getJobRepository().getJobRecords().stream().map(record -> record.getConfig().getName()).filter(Objects::nonNull);
            break;
        default:
            throw new AssertionError("Unsupported SHOW statement target.");
    }
    SqlRowMetadata metadata = new SqlRowMetadata(singletonList(new SqlColumnMetadata("name", VARCHAR, false)));
    InternalSerializationService serializationService = Util.getSerializationService(hazelcastInstance);
    return new SqlResultImpl(QueryId.create(hazelcastInstance.getLocalEndpoint().getUuid()), new StaticQueryResultProducerImpl(rows.sorted().map(name -> new JetSqlRow(serializationService, new Object[] { name })).iterator()), metadata, false);
}