Hi, as most of you may know GeoServer caches configuration objects (but not data) and we have a button in the status page to clear those caches.
Very nice. However, the rendering subsystem also caches the external images, since they can be quite heavy to load. I've just added some cache clearing methods to GeoToools (waiting for a better time to actually add resource up-to-dateness tests over various protocols) and I would like to wire them with the "clean resource cache" button. However, there is a catch: web-core does not (and should not) know about the renderer (which is WMS specific), so I cannot call those new methods there. Where should I do that then? I cannot find a good existing spot, but I have two ideas. Cheap one ----------------------------- Cache clearing involves calling into ResourcePool.dispose(), which will dispose of all caches. That will result, as a side effect, in calls to ResourcePool.Listener for each disposed store, coverage and feature type. So I was thinking, let's add a new method to that Listener, simply "void disposed()", which is called when the ResourcePool.dispose() method is called. In the WMS module we can then add a listener that will look for that and clear the rendering caches as well. Big architecture one ------------------------------ The little architecture astronaut in me also considers the idea of having a CacheDisposer interface that can be implemented in various modules, and a central utility (CacheDisposers?) that looks up for all those disposers, and then we wire up rest config and the GUI to that method. Any other idea? That eternal image cache has beaten me one too many times, I really want to see it go ;-) Cheers Andrea -- Andrea Aime OpenGeo - http://opengeo.org Expert service straight from the developers. ------------------------------------------------------------------------------ _______________________________________________ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
