def redis_cached(cache_miss_func):
"""Decorator that caches a function + parameters to a Redis instance.
"""
config_settings = config_layer.get_config()
expiration = config_settings['REDIS_EXPIRATION']
def inner(*args, **kwargs):
key = get_redis_key(cache_miss_func, args)
redis_conn = get_redis_connection()
prior = redis_conn.get(key)
if not prior:
ret_val = cache_miss_func(*args, **kwargs)
redis_conn.setex(key, json.dumps(ret_val), expiration)
print 'set ' + key
else:
ret_val = json.loads(prior)
return ret_val
def inner_guarded(*args, **kwargs):
try:
# Try to connect to the redis cache and get cached value
return inner(*args, **kwargs)
except Exception as e:
# If failed to connect to redis cache
print 'cache fail -', e
return cache_miss_func(*args, **kwargs)
return inner_guarded
def redis_cached(cache_miss_func):
"""Decorator that caches a function + parameters to a Redis instance.
"""
config_settings = config_layer.get_config()
expiration = config_settings['REDIS_EXPIRATION']
def inner(*args, **kwargs):
key = get_redis_key(cache_miss_func, args)
redis_conn = get_redis_connection()
prior = redis_conn.get(key)
if not prior:
ret_val = cache_miss_func(*args, **kwargs)
redis_conn.setex(key, json.dumps(ret_val), expiration)
print 'set ' + key
else:
ret_val = json.loads(prior)
return ret_val
def inner_guarded(*args, **kwargs):
try:
# Try to connect to the redis cache and get cached value
return inner(*args, **kwargs)
except Exception as e:
# If failed to connect to redis cache
print 'cache fail -', e
return cache_miss_func(*args, **kwargs)
return inner_guarded
def __init__(self):
config_settings = config_layer.get_config()
host = config_settings['REDIS_HOST']
port = config_settings['REDIS_PORT']
db = config_settings['REDIS_DB']
password = config_settings['REDIS_PASSWORD']
expiration = config_settings['REDIS_EXPIRATION']
self.redis_conn = redis.Redis(host=host,
port=port,
db=db,
password=password)
def __init__(self):
config_settings = config_layer.get_config()
host = config_settings['REDIS_HOST']
port = config_settings['REDIS_PORT']
db = config_settings['REDIS_DB']
password = config_settings['REDIS_PASSWORD']
expiration = config_settings['REDIS_EXPIRATION']
self.redis_conn = redis.Redis(
host=host,
port=port,
db=db,
password=password
)
