PortletEnvironmentService envService = getContainerServices().getPortletEnvironmentService();
PortletInvokerService invoker = getContainerServices().getPortletInvokerService();
PortletRequestContext requestContext = rcService.getPortletEventRequestContext(this, request, response, portletWindow);
PortletEventResponseContext responseContext = rcService.getPortletEventResponseContext(this, request, response, portletWindow);
EventRequest portletRequest = envService.createEventRequest(requestContext, responseContext, event);
EventResponse portletResponse = envService.createEventResponse(responseContext);
FilterManager filterManager = filterInitialisation(portletWindow,PortletRequest.EVENT_PHASE);
List<Event> events = null;