57 lines
1.4 KiB
Python
57 lines
1.4 KiB
Python
# local imports
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from .state import State
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class PersistedState(State):
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def __init__(self, factory, bits, logger=None):
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super(PersistedState, self).__init__(bits, logger=logger)
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self.__store_factory = factory
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self.__stores = {}
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def __ensure_store(self, k):
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if self.__stores.get(k) == None:
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self.__stores[k] = self.__store_factory(k)
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def put(self, key, contents=None, state=None, force=False):
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k = self.name(state)
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self.__ensure_store(k)
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self.__stores[k].add(key, contents, force=force)
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super(PersistedState, self).put(key, state=state, contents=contents, force=force)
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def move(self, key, to_state):
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k_to = self.name(to_state)
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from_state = self.state(key)
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k_from = self.name(from_state)
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self.__ensure_store(k_to)
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self.__ensure_store(k_from)
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contents = self.__stores[k_from].get(key)
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self.__stores[k_to].add(key, contents)
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self.__stores[k_from].remove(key)
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super(PersistedState, self).move(key, to_state)
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def purge(self, key):
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state = self.state(key)
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k = self.name(state)
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self.__ensure_store(k)
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self.__stores[k].remove(key)
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super(PersistedState, self).purge(key)
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def get(self, key=None):
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state = self.state(key)
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k = self.name(state)
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return self.__stores[k].get(key)
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