public function readLines()
    {
        if ($this->getFileObject()->isFile()) {
            if ($this->skipEmptyLines) {
                // skip empty lines
                $lines = file($this->getFileObject()->getPathname(), FILE_SKIP_EMPTY_LINES | FILE_IGNORE_NEW_LINES);
            } else {
                $lines = file($this->getFileObject()->getPathname(), FILE_IGNORE_NEW_LINES);
            }

            if (is_array($lines)) {
                return $lines;
            }
        }
        return array();
    }