How to use

selectByUuid

method

in

org.sonar.db.ce.CeQueueMapper

public Optional<CeQueueDto> selectByUuid(DbSession session, String uuid) {
 return Optional.ofNullable(mapper(session).selectByUuid(uuid));
}

private Optional<CeQueueDto> tryToPeek(DbSession session, String eligibleTaskUuid, String workerUuid) {
 long now = system2.now();
 int touchedRows = mapper(session).updateIf(eligibleTaskUuid,
  new UpdateIf.NewProperties(IN_PROGRESS, workerUuid, now, now),
  new UpdateIf.OldProperties(PENDING));
 if (touchedRows != 1) {
  return Optional.empty();
 }
 CeQueueDto result = mapper(session).selectByUuid(eligibleTaskUuid);
 session.commit();
 return Optional.ofNullable(result);
}

public Optional<CeQueueDto> selectByUuid(DbSession session, String uuid) {
 return Optional.fromNullable(mapper(session).selectByUuid(uuid));
}

private Optional<CeQueueDto> tryToPeek(DbSession session, String taskUuid) {
 int touchedRows = mapper(session).updateIfStatus(taskUuid, IN_PROGRESS, system2.now(), system2.now(), PENDING);
 if (touchedRows != 1) {
  return Optional.absent();
 }
 CeQueueDto result = mapper(session).selectByUuid(taskUuid);
 session.commit();
 return Optional.of(result);
}