routefs/examples/pyhesiodfs.py

   1 #!/sw/bin/python2.5
   2
   3 import hesiod
   4 import routefs
   5 from routes import Mapper
   6
   7 class PyHesiodFS(routefs.RouteFS):
   8     def __init__(self, *args, **kwargs):
   9         super(PyHesiodFS, self).__init__(*args, **kwargs)
  10
  11         self.cache = {}
  12
  13     def make_map(self):
  14         m = Mapper()
  15         m.connect('', controller='getList')
  16         m.connect(':action', controller='getLocker')
  17         return m
  18
  19     def getLocker(self, action):
  20         if action in self.cache:
  21             return routefs.Symlink(self.cache[action])
  22
  23         try:
  24             filsys = hesiod.FilsysLookup(action).filsys[0]
  25             if filsys['type'] == 'AFS':
  26                 self.cache[action] = filsys['location']
  27                 return routefs.Symlink(self.cache[action])
  28         except (TypeError, KeyError, IndexError):
  29             return
  30
  31     def getList(self, action):
  32         return routefs.Directory(self.cache.keys())
  33
  34 if __name__ == '__main__':
  35     routefs.main(PyHesiodFS)