forked from platypush/platypush
59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
import logging
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from functools import wraps
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from platypush.event import EventGenerator
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from platypush.message.response import Response
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from platypush.utils import get_decorators
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def action(f):
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@wraps(f)
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def _execute_action(*args, **kwargs):
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response = Response()
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result = f(*args, **kwargs)
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if result and isinstance(result, Response):
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result.errors = result.errors \
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if isinstance(result.errors, list) else [result.errors]
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response = result
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elif isinstance(result, tuple) and len(result) == 2:
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response.errors = result[1] \
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if isinstance(result[1], list) else [result[1]]
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if len(response.errors) == 1 and response.errors[0] is None:
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response.errors = []
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response.output = result[0]
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else:
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response = Response(output=result, errors=[])
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return response
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# Propagate the docstring
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_execute_action.__doc__ = f.__doc__
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return _execute_action
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class Plugin(EventGenerator):
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""" Base plugin class """
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def __init__(self, **kwargs):
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super().__init__()
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self.logger = logging.getLogger(self.__class__.__name__)
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if 'logging' in kwargs:
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self.logger.setLevel(getattr(logging, kwargs['logging'].upper()))
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self.registered_actions = set(
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get_decorators(self.__class__, climb_class_hierarchy=True)
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.get('action', [])
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)
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def run(self, method, *args, **kwargs):
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if method not in self.registered_actions:
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raise RuntimeError('{} is not a registered action on {}'.format(
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method, self.__class__.__name__))
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return getattr(self, method)(*args, **kwargs)
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# vim:sw=4:ts=4:et:
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