public static function generateDatasetName() {
        $sequenceName = 'dataset.name';

        $datasetSuffixId = Sequence::getNextSequenceValue($sequenceName);
        $datasetSuffix = str_pad(base_convert($datasetSuffixId, 10, 36), self::$LENGTH_NAME__DATASET, '0', STR_PAD_LEFT);

        return self::$PREFIX_NAME__DATASET . $datasetSuffix;
    }
    protected function getRequestId() {
        $requestId = &drupal_static(__CLASS__ . '::requestId');
        if (!isset($requestId)) {
            $sequenceName = NameSpaceHelper::addNameSpace(get_class($this), 'requestId');
            $requestId = Sequence::getNextSequenceValue($sequenceName);
        }

        return $requestId;
    }