This requirement comes out from my previous requirement of FriendlyURLMapper. My intention is to have possibility of reusable and configurable FriendlyURLMapper class. However this can be used for more classes associated with portlet ( defined in liferay-portlet.xml ).
With really light and straightforward mechanism of PortletLifecycleListener, this classes can be notified about portlet initialization and destroing and what is more important they can receive also Portlet information in init method.
Patch and example war attached.