def check_static_paths(self):
        # Use the dummy Request object in the main thread.
        request = cherrypy.request
        for sn, app in cherrypy.tree.apps.items():
            if not isinstance(app, cherrypy.Application):
                continue
            request.app = app
            for section in app.config:
                # get_resource will populate request.config
                request.get_resource(section + "/dummy.html")
                conf = request.config.get
                
                if conf("tools.staticdir.on", False):
                    msg = ""
                    root = conf("tools.staticdir.root")
                    dir = conf("tools.staticdir.dir")
                    if dir is None:
                        msg = "tools.staticdir.dir is not set."
                    else:
                        fulldir = ""
                        if os.path.isabs(dir):
                            fulldir = dir
                            if root:
                                msg = ("dir is an absolute path, even "
                                       "though a root is provided.")
                                testdir = os.path.join(root, dir[1:])
                                if os.path.exists(testdir):
                                    msg += ("\nIf you meant to serve the "
                                            "filesystem folder at %r, remove "
                                            "the leading slash from dir." % testdir)
                        else:
                            if not root:
                                msg = "dir is a relative path and no root provided."
                            else:
                                fulldir = os.path.join(root, dir)
                                if not os.path.isabs(fulldir):
                                    msg = "%r is not an absolute path." % fulldir
                        
                        if fulldir and not os.path.exists(fulldir):
                            if msg:
                                msg += "\n"
                            msg += ("%r (root + dir) is not an existing "
                                    "filesystem path." % fulldir)
                    
                    if msg:
                        warnings.warn("%s\nsection: [%s]\nroot: %r\ndir: %r"
                                      % (msg, section, root, dir))
    
    
    # -------------------------- Compatibility -------------------------- #
Marks this entry as deleted and locks it for the expiration time.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/cherrypy/cherrypy/_cpchecker.py/Checker.check_static_paths--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/memcache/memcache_stub.py/CacheEntry.ExpireAndLock