Hello all, I¹m running Wicket on Google App Engine. Things have been going fairly well, but I¹ve encountered a new issue. GAE, at any moment, can wipe and restart your application. In doing so, you lose everything including anything you¹ve added to SharedResources. Unfortunately, this can happen in the middle of a page load as illustrated here:
-Page request comes in -Nifty MarkupFilter reads initial markup and creates some SharedResources (for a variety of image states based on the filename in the markup) -MarkupFilter sets the URL in the markup based on the URL provided by the mounted SharedResource (e.g. ³img/logo.png² becomes ³/resources/INDIRA/img/logo_d.png² because I wanted the disabled version). -Markup is returned to the browser -GAE restarts the application, losing the added SharedResource mapping -Browser requests the resource according to the mounted URL -Wicket cannot find resource, missing image My current hack idea is to add any shared resource to the GAE MemCache (URL maps to File). That works, but now, I just need to know where Wicket actually looks up the file so I can add a fallback to check the GAE MemCache if the file is not found. My understanding is that the mounted SharedResource path resolves to an actual path in the ServletContext, but I can¹t figure out where that is happening. I initially thought that I would just override SharedResources.get(), but I don¹t think that is called when simply handling requests. I also found references to WebRequestCodingStrategy.RESOURCES_PATH_PREFIX, but none of that seemed to help. Finally, I dove deep into WicketFilter, WebRequest/Response, SharedResourceRequestTarget etc but got completely lost. I assume it¹s in there someplace, though. Any help would be appreciated. Thanks! Jake
