private function validateArray($sourceAccountId = [])
    {
        if (!is_array($sourceAccountId)) {
            throw new BcaHttpException('Data harus array.');
        }
        if (empty($sourceAccountId)) {
            throw new BcaHttpException('AccountNumber tidak boleh kosong.');
        } else {
            $max = sizeof($sourceAccountId);
            if ($max > 20) {
                throw new BcaHttpException('Maksimal Account Number ' . 20);
            }
        }

        return true;
    }