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import _oids, _objects, types

class OidData(object):
   def __init__(self):
      self.oids = _oids.data
      self.objs = _objects.data

   def obj2oid(self, obj):
      if not self.objs.has_key(obj):
         raise Exception, 'unknown object: %s' % obj
      return tuple(self.objs[obj]['oid'])
   
   def oid2obj(self, oid):
      if isinstance( oid, types.ListType ):
         oid = tuple(oid)
      if not self.oids.has_key(oid):
         raise Exception, 'unknown oid %s' % `oid`
      return self.oids[oid]['name']