50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
from common.global_symbols import NotFound
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from common.utils import sheerka_deepcopy
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from core.Sheerka import Sheerka
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class BaseService:
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"""
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Base class for services
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"""
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def __init__(self, sheerka: Sheerka, order=999):
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self.sheerka = sheerka
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self.order = order # initialisation order. The lowest is initialized first
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def initialize(self):
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"""
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Adds cache or bind methods
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:return:
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"""
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pass
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def state_properties(self):
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pass
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def push_state(self, context):
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"""
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Use variable Manager to store the state of the service
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"""
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args = self.state_properties()
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if args:
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for prop_name in args:
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self.sheerka.record_var(context, self.NAME, prop_name, sheerka_deepcopy(getattr(self, prop_name)))
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def pop_state(self):
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"""
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Use Variable Manager to restore the state of a service
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:return:
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"""
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args = self.state_properties()
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if args:
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for prop_name in args:
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if (value := self.sheerka.load_var(self.NAME, prop_name)) is not NotFound:
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setattr(self, prop_name, value)
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def store_var(self, context, var_name):
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"""
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Store/record the value of an attribute
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"""
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self.sheerka.record_var(context, self.NAME, var_name, getattr(self, var_name))
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