class GlobalSettings(object):
__metaclass__ = Singleton
def __init__(self, prefix=None):
if not prefix:
self.prefix = "SetTtiNg"
else:
assert isinstance(prefix, str)
self.prefix = prefix
# cache level L1
self.local = LocalCacheManager(default_expire_mean=30)
# self.local.clear()
# cache level L2
self.redis_connection_pool = \
redis.ConnectionPool(max_connections=128, **redis_server_settings["RemoteSetting"])
self.redis = redis.Redis(connection_pool=self.redis_connection_pool)
# cache level L3
self.my_conn = MySQLdb.connect(**(mysqldb_connect_strings["Setting"]))
self.my_conn.autocommit(False)
self.my_cur = None
self._is_production = None
def clear_cache(self, l1=True, l2=False):
if l1:
self.local.clear()
if l2:
self.redis.flushdb()
def reset_to_default(self):
# clear L1, L2 Caches
self.clear_cache(l1=True, l2=True)
# reset L3
try:
self.my_conn.ping(True)
with closing(self.my_conn.cursor()) as self.my_cur:
self.my_cur.execute("""DELETE FROM `Coock`.`settings` WHERE 1""")
for key in vars:
self.my_cur.execute("""INSERT INTO `Coock`.`settings`(rkey, value) VALUES(%s, %s)""", \
(self._convert_to_real_key(key), self._encode_value(key, vars[key]["default"])))
self.my_conn.commit()
except MySQLdb.Error, e:
self.my_conn.rollback()
print(e.message, str(e.args))
return False
# reset L2
try:
p = self.redis.pipeline(transaction=True)
for key in vars:
p.setex(self._convert_to_real_key(key), self._encode_value(key, vars[key]["default"]), \
86400 * 365 * 10)
p.execute()
except redis.RedisError, e:
print(e.message, str(e.args))
return False
def __init__(self, prefix=None):
if not prefix:
self.prefix = "SetTtiNg"
else:
assert isinstance(prefix, str)
self.prefix = prefix
# cache level L1
self.local = LocalCacheManager(default_expire_mean=30)
# self.local.clear()
# cache level L2
self.redis_connection_pool = \
redis.ConnectionPool(max_connections=128, **redis_server_settings["RemoteSetting"])
self.redis = redis.Redis(connection_pool=self.redis_connection_pool)
# cache level L3
self.my_conn = MySQLdb.connect(**(mysqldb_connect_strings["Setting"]))
self.my_conn.autocommit(False)
self.my_cur = None
self._is_production = None