forked from platypush/platypush
64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
import sys
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import logging
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import traceback
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from functools import wraps
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from platypush.config import Config
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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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output = None
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errors = []
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try:
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output = f(*args, **kwargs)
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if output and isinstance(output, Response):
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errors = output.errors \
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if isinstance(output.errors, list) else [output.errors]
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output = output.output
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elif isinstance(output, tuple) and len(output) == 2:
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errors = output[1] \
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if isinstance(output[1], list) else [output[1]]
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if len(errors) == 1 and errors[0] is None: errors = []
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output = output[0]
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except Exception as e:
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if isinstance(args[0], Plugin):
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args[0].logger.exception(e)
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errors.append(str(e) + '\n' + traceback.format_exc())
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return Response(output=output, errors=errors)
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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(object):
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""" Base plugin class """
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def __init__(self, **kwargs):
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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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