Hi Jeremy, The FileCache::isFileAppropriateForFileCache(..) method is virtual so you can subclass from FileCache override this method and than construct your own FIleCache and attach it to the osgDB::Registry by doing:
osgDB::Registry::instance()->setFileCache(new MyFileCache); Robert. On 11 December 2015 at 02:10, Jeremy <[email protected]> wrote: > I have a large data set that is on a network that my application pulls > small sections of. I want to use the file cache to build local caches of > only the content the application needs without needing to clone the entire > tree. > > When i register a file cache with my prototype application(which is > currently just a slightly hacked osgViewer). I then proceed to load up my > content using the network mapped paths(on windows, this amounts to a bunch > of calls to \\somecomputer\somepath\whatever.flt for the terrain tiles, and > then that in turn will pull in external references etc. > > The problem I'm having is that the file cache doesn't cache all these > files like I would prefer it to. After a bit of debugging, > the FileCache::isFileAppropriateForFileCache returns false because the url > isn't prefixed with the known protocols(ftp, http, etc). As a quick > workaround I made this function return true always to see if it would > cache, and the next place that failed was when it tried to write out the > cached file, since a network URL sent through createCacheFileName doesn't > produce a valid file path. > > This is probably something I can get working with local modifications but > I would like to ask that the developers consider some additional FileCache > options so that one can tell it to cache all files, and not just the ones > it deems to be "appropriate", which appears to be limited to remote url > paths.The standalone osgfilecache application I think has the right idea > with caching everything, but I'm wanted to avoid the need to run a > preprocessing step. It appears as well that even if I created and populated > the cache myself externally, the case(HANDLE_NON_HTTP): in the pager still > only checks the cache given the success of > the isFileAppropriateForFileCache. > > Perhaps it's also reasonable for this check to identify network URLs as > viable candidates too? > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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