src/backend/memcached.py

   1 #!/usr/bin/python
   2
   3 import logging
   4 import memcache
   5
   6 from misc import Object
   7
   8 class Memcached(Object):
   9         def init(self):
  10                 self._connection = None
  11
  12                 servers = self.get_servers()
  13
  14                 # Nothing to do, if no servers have been configured.
  15                 if not servers:
  16                         logging.warning("No memcache servers defined")
  17                         return
  18
  19                 logging.info("Using memcache servers: %s" % ", ".join(servers))
  20                 self._connection = memcache.Client(servers, debug=0)
  21
  22         def get_servers(self):
  23                 servers = self.settings.get("memcached_servers")
  24
  25                 if servers:
  26                         return servers.split(" ")
  27
  28         def get(self, key, *args, **kwargs):
  29                 if not self._connection:
  30                         return
  31
  32                 key = str(key)
  33
  34                 return self._connection.get(key, *args, **kwargs)
  35
  36         def set(self, key, *args, **kwargs):
  37                 if not self._connection:
  38                         return
  39
  40                 key = str(key)
  41
  42                 return self._connection.set(key, *args, **kwargs)
  43
  44         def delete(self, key, *args, **kwargs):
  45                 if not self._connection:
  46                         return
  47
  48                 key = str(key)
  49
  50                 return self._connection.delete(key, *args, **kwargs)