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# coding: utf-8 |
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import abc |
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import six |
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class BaseStructure(object): |
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__slots__ = [] |
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def __eq__(self, other): |
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if not isinstance(other, self.__class__): |
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return NotImplemented |
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if self.__class__ != other.__class__: |
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return False |
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return all([ |
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getattr(self, x) == getattr(other, x) |
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for x in self.__slots__ |
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]) |
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def __ne__(self, other): |
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return not (self == other) |
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def __hash__(self): |
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return hash(tuple( |
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getattr(self, x) for x in self.__slots__ |
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)) |
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def to_primitive(self, context=None): |
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fields = ((key, getattr(self, key)) for key in self.__slots__) |
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return { |
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key: self._to_primitive(value, context) |
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for key, value in fields |
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} |
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@staticmethod |
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def _to_primitive(instance, context): |
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if hasattr(instance, 'to_primitive'): |
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return instance.to_primitive(context) |
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elif hasattr(instance, 'isoformat'): |
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return instance.isoformat() |
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else: |
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return instance |
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class Event(six.with_metaclass(abc.ABCMeta, BaseStructure)): |
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""" |
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Base event structure. |
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""" |
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def __init__(self, **kwargs): |
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for key in self.__slots__: |
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setattr(self, key, kwargs[key]) |
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super(Event, self).__init__() |
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@property |
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def name(self): |
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return self.__class__.__name__ |
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@abc.abstractproperty |
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def verbose_name(self): |
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""" |
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Human-readable name of event. |
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""" |
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def to_primitive(self, context=None): |
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primitive = super(Event, self).to_primitive(context) |
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primitive.update({ |
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'name': self.name, |
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'verbose_name': six.text_type(self.verbose_name), |
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}) |
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return primitive |
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def __repr__(self): |
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return "<Event {0} {1}>".format(self.name, self.to_primitive()) |
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class ParsableEvent(Event): |
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""" |
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Base event which can be parsed from string. |
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""" |
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transformers = tuple() |
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@classmethod |
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def transform(cls, data): |
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for transformer in cls.transformers: |
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transformer(data) |
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return data |
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@abc.abstractproperty |
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def matcher(self): |
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""" |
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A callable for matching strings. |
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""" |
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@classmethod |
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def from_s(cls, s): |
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match = cls.matcher(s) |
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if match: |
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data = cls.transform(match.groupdict()) |
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return cls(**data) |
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IL2HorusTeam /
il2fb-commons
