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from pysnmp.proto import error
class Cache:
def __init__(self):
self.__cacheRepository = {}
def add(self, index, **kwargs):
self.__cacheRepository[index] = kwargs
return index
def pop(self, index):
if index in self.__cacheRepository:
cachedParams = self.__cacheRepository[index]
else:
return
del self.__cacheRepository[index]
return cachedParams
def update(self, index, **kwargs):
if index not in self.__cacheRepository:
raise error.ProtocolError(
'Cache miss on update for %s' % kwargs
)
self.__cacheRepository[index].update(kwargs)
def expire(self, cbFun, cbCtx):
for index, cachedParams in list(self.__cacheRepository.items()):
if cbFun:
if cbFun(index, cachedParams, cbCtx):
del self.__cacheRepository[index]
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