public function getDataInterface()
    {
        if (!$this->started) {
            return $this->_interface;
        }
        if (is_null($this->_interface)) {
            $interfaces = ArrayHelper::map(Yii::$app->collectors['dataInterfaces']->getAll(), 'systemId', 'object.name');
            $this->dataInterface = $this->select("Choose interface", $interfaces);
        }

        return $this->_interface;
    }