class RedisDict(MutableMapping):
""" RedisDict - a dictionary-like interface for ``redis`` key-stores
"""
def __init__(self,
namespace,
collection_name='redis_dict_data',
connection=None):
"""
The actual key name on the redis server will be
``namespace``:``collection_name``
In order to deal with how redis stores data/keys,
everything, i.e. keys and data, must be pickled.
:param namespace: namespace to use
:param collection_name: name of the hash map stored in redis
(default: redis_dict_data)
:param connection: ``redis.StrictRedis`` instance.
If it's ``None`` (default), a new connection with
default options will be created
"""
if connection is not None:
self.connection = connection
else:
self.connection = Redis()
self._self_key = ':'.join([namespace, collection_name])
def __getitem__(self, key):
result = self.connection.hget(self._self_key, pickle.dumps(key))
if result is None:
raise KeyError
return pickle.loads(bytes(result))
def __setitem__(self, key, item):
self.connection.hset(self._self_key, pickle.dumps(key),
pickle.dumps(item))
def __delitem__(self, key):
if not self.connection.hdel(self._self_key, pickle.dumps(key)):
raise KeyError
def __len__(self):
return self.connection.hlen(self._self_key)
def __iter__(self):
for v in self.connection.hkeys(self._self_key):
yield pickle.loads(bytes(v))
def clear(self):
self.connection.delete(self._self_key)
def __str__(self):
return str(dict(self.items()))
class RedisDict(MutableMapping):
""" RedisDict - a dictionary-like interface for ``redis`` key-stores
"""
def __init__(self, namespace, collection_name='redis_dict_data',
connection=None):
"""
The actual key name on the redis server will be
``namespace``:``collection_name``
In order to deal with how redis stores data/keys,
everything, i.e. keys and data, must be pickled.
:param namespace: namespace to use
:param collection_name: name of the hash map stored in redis
(default: redis_dict_data)
:param connection: ``redis.StrictRedis`` instance.
If it's ``None`` (default), a new connection with
default options will be created
"""
if connection is not None:
self.connection = connection
else:
self.connection = Redis()
self._self_key = ':'.join([namespace, collection_name])
def __getitem__(self, key):
result = self.connection.hget(self._self_key, pickle.dumps(key))
if result is None:
raise KeyError
return pickle.loads(bytes(result))
def __setitem__(self, key, item):
self.connection.hset(self._self_key, pickle.dumps(key),
pickle.dumps(item))
def __delitem__(self, key):
if not self.connection.hdel(self._self_key, pickle.dumps(key)):
raise KeyError
def __len__(self):
return self.connection.hlen(self._self_key)
def __iter__(self):
for v in self.connection.hkeys(self._self_key):
yield pickle.loads(bytes(v))
def clear(self):
self.connection.delete(self._self_key)
def __str__(self):
return str(dict(self.items()))
def __init__(self, namespace, collection_name='redis_dict_data',
connection=None):
"""
The actual key name on the redis server will be
``namespace``:``collection_name``
In order to deal with how redis stores data/keys,
everything, i.e. keys and data, must be pickled.
:param namespace: namespace to use
:param collection_name: name of the hash map stored in redis
(default: redis_dict_data)
:param connection: ``redis.StrictRedis`` instance.
If it's ``None`` (default), a new connection with
default options will be created
"""
if connection is not None:
self.connection = connection
else:
self.connection = Redis()
self._self_key = ':'.join([namespace, collection_name])
def __init__(self,
namespace,
collection_name='redis_dict_data',
connection=None):
"""
The actual key name on the redis server will be
``namespace``:``collection_name``
In order to deal with how redis stores data/keys,
everything, i.e. keys and data, must be pickled.
:param namespace: namespace to use
:param collection_name: name of the hash map stored in redis
(default: redis_dict_data)
:param connection: ``redis.StrictRedis`` instance.
If it's ``None`` (default), a new connection with
default options will be created
"""
if connection is not None:
self.connection = connection
else:
self.connection = Redis()
self._self_key = ':'.join([namespace, collection_name])
