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from abc import ABC |
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import attr |
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from so_magic.utils import Command, Subject |
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from .command_factory_interface import CommandFactoryInterface |
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class DataManagerCommandFactory(CommandFactoryInterface, ABC): |
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subclasses = {} |
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@classmethod |
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def register_as_subclass(cls, factory_type): |
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def wrapper(subclass): |
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cls.subclasses[factory_type] = subclass |
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return subclass |
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return wrapper |
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@classmethod |
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def create(cls, factory_type, *args, **kwargs): |
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if factory_type not in cls.subclasses: |
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raise ValueError('Bad "Factory type" \'{}\''.format(factory_type)) |
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return cls.subclasses[factory_type](*args, **kwargs) |
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@classmethod |
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def create_factory(cls, name, callback): |
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@DataManagerCommandFactory.register_as_subclass(name) |
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class DataManagerRuntimeCommandFactory(DataManagerCommandFactory): |
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def construct(self, *args, **kwargs) -> Command: |
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receiver = args[0] |
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def command(*runtime_args): |
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callback(receiver, *runtime_args) |
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return Command(command, '__call__', *args[1:]) |
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#### Register command factories |
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@DataManagerCommandFactory.register_as_subclass('select_variables') |
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class SelectVariablesCommandFactory(DataManagerCommandFactory): |
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def construct(self, *args, **kwargs) -> Command: |
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def command(variables): |
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args[0].feature_manager.feature_configuration = variables |
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return Command(command, '__call__', *args[1:]) |
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################# |
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@attr.s |
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class MegaCommandFactory(Subject): |
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_data_manager = attr.ib(init=True) |
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command_factory = attr.ib(init=True, default=DataManagerCommandFactory) |
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def __call__(self, command_type, *args, **kwargs): |
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self._state, self.name = self.command_factory.create(command_type).construct(self._data_manager, *args, **kwargs), command_type |
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self.notify() |
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return self._state |
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# Legacy Code |
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# @BaseCommandFactory.register_as_subclass('encode_nominal_subsets') |
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# class NominalAttributeListEncodeCommandFactory(AbstractCommandFactory): |
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# def construct(self, *args, **kwargs) -> Command: |
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# from so_magic.data.features.phis import ListOfCategoricalPhi, DatapointsAttributePhi |
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# assert len(args) > 0 |
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# datapoints = args[0] |
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# attribute = args[1] |
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# new_attribute = args[2] |
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# def _command(_datapoints, _attribute, _new_attribute): |
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# phi = ListOfCategoricalPhi(DatapointsAttributePhi(_datapoints)) |
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# new_values = phi(_attribute) |
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# _datapoints.mutator.add_column(_datapoints, new_values, _new_attribute) |
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# return Command(_command, '__call__', datapoints, attribute, new_attribute) |
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boromir674 /
so-magic
