public function getComponent()
    {
        if (!isset($this->_component)) {
            $class = $this->componentClass;
            $class = strpos($class, '.') ? substr($class, 0, strpos($class, '.')) : $class;
            $component = new $class($this);
            $this->_component = $component;
        }
        return $this->_component;
    }