def _format_key(self, key):
if not isinstance(key, str):
key = key.decode("ascii")
formated_key = (self.namespace + "_" + key).replace(" ", "\302\267")
if len(formated_key) > MAX_KEY_LENGTH:
formated_key = sha1(formated_key).hexdigest()
return formated_key
def cached(*args):
if not cache[0]:
if region is not None:
if region not in cache_regions:
raise BeakerException("Cache region not configured: %s" % region)
reg = cache_regions[region]
if not reg.get("enabled", True):
return func(*args)
cache[0] = Cache._get_cache(namespace, reg)
elif manager:
cache[0] = manager.get_cache(namespace, **kwargs)
else:
raise Exception("'manager + kwargs' or 'region' " "argument is required")
if skip_self:
try:
cache_key = " ".join(map(str, deco_args + args[1:]))
except UnicodeEncodeError:
cache_key = " ".join(map(unicode, deco_args + args[1:]))
else:
try:
cache_key = " ".join(map(str, deco_args + args))
except UnicodeEncodeError:
cache_key = " ".join(map(unicode, deco_args + args))
if region:
key_length = cache_regions[region]["key_length"]
else:
key_length = kwargs.pop("key_length", 250)
if len(cache_key) + len(namespace) > int(key_length):
cache_key = sha1(cache_key).hexdigest()
def go():
return func(*args)
return cache[0].get_value(cache_key, createfunc=go)
def _cache_decorator_invalidate(cache, key_length, args):
"""Invalidate a cache key based on function arguments."""
try:
cache_key = " ".join(map(str, args))
except UnicodeEncodeError:
cache_key = " ".join(map(unicode, args))
if len(cache_key) + len(cache.namespace_name) > key_length:
cache_key = sha1(cache_key).hexdigest()
cache.remove_value(cache_key)