protected function onInit()
    {
        $this->filePath = Utility::get($this->params, "filePath");
        $this->fieldSeparator = Utility::get($this->params, "fieldSeparator", ",");
        $this->charset = Utility::get($this->params, "charset");
        $this->precision = Utility::get($this->params, "precision", 100);
        $this->firstRowData = Utility::get($this->params, "firstRowData", false);
    }