public function checkRoundsFor(\Gems_Tracker_RespondentTrack $respTrack, $userId, \Gems_Task_TaskRunnerBatch $batch = null)
    {
        if (null === $batch) {
            $batch = new \Gems_Task_TaskRunnerBatch('tmp-tack-' . $respTrack->getRespondentTrackId());
        }
        // Step one: update existing tokens
        $i = $batch->addToCounter('roundChangeUpdates', $this->checkExistingRoundsFor($respTrack, $userId));
        $batch->setMessage('roundChangeUpdates', sprintf($this->_('Round changes propagated to %d tokens.'), $i));

        // Step two: deactivate inactive rounds
        $i = $batch->addToCounter('deletedTokens', $this->removeInactiveRounds($respTrack, $userId));
        $batch->setMessage('deletedTokens', sprintf($this->_('%d tokens deleted by round changes.'), $i));

        // Step three: create lacking tokens
        $i = $batch->addToCounter('createdTokens', $this->addNewTokens($respTrack, $userId));
        $batch->setMessage('createdTokens', sprintf($this->_('%d tokens created to by round changes.'), $i));

        // Step four: set the dates and times
        //$changed = $this->checkTokensFromStart($respTrack, $userId);
        $changed = $respTrack->checkTrackTokens($userId);
        $ica = $batch->addToCounter('tokenDateCauses', $changed ? 1 : 0);
        $ich = $batch->addToCounter('tokenDateChanges', $changed);
        $batch->setMessage('tokenDateChanges', sprintf($this->_('%2$d token date changes in %1$d tracks.'), $ica, $ich));

        $i = $batch->addToCounter('checkedRespondentTracks');
        $batch->setMessage('checkedRespondentTracks', sprintf($this->_('Checked %d tracks.'), $i));
    }