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83 lines
2.1 KiB
Python
83 lines
2.1 KiB
Python
import inspect
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from lib import Loadable, Logger
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class Storage(Loadable):
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"""Base class for storages"""
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def __init__(self, id, root):
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super().__init__(id, root)
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self._size = self.lcnf.get("size", 0)
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self._logger = Logger("Storage")
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self._logger.add_field('vname', self.__class__.__name__)
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def size(self):
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return self._size
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def count(self):
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return 0
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def _get(self, block, filter):
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pass
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def _get_many(self, count, block, filter):
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items = []
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for _ in range(count):
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items.append(self._get(block, filter))
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return items
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def get(self, count=1, block=True, filter=None):
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"""Returns items, removing them from storage"""
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self._logger.debug("get|%s|%s|%s",
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count, block, inspect.stack()[1][0].f_locals["self"].__class__.__name__)
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items = []
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if count == 1:
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items.append(self._get(block, filter))
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elif count > 1:
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items = self._get_many(count, block, filter)
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return [i for i in items if i is not None]
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def _put(self, item, block):
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pass
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def _put_many(self, items, block):
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for i in items:
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if i is not None:
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self._put(i, block)
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def put(self, items, block=True):
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"""Puts provided items"""
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self._logger.debug("put|%s|%s|%s",
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len(items), block, inspect.stack()[1][0].f_locals["self"].__class__.__name__)
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if items:
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items = [i for i in items if i is not None]
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if len(items) == 1:
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self._put(items[0], block)
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elif len(items) > 1:
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self._put_many(items, block)
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def _find(self, filter):
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pass
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def find(self, filter):
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"""Returns items without removing them from storage"""
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return self._find(filter)
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def _update(self, items, update):
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pass
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def update(self, items, update=None):
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"""Updates provided items"""
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self._logger.debug("update|%s|%s",
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len(items), inspect.stack()[1][0].f_locals["self"].__class__.__name__)
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if items:
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items = [i for i in items if i is not None]
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self._update(items, update)
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def _remove(self, items):
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pass
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def remove(self, items):
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"""Removes provided items"""
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self._remove(items)
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