68 lines
1.7 KiB
Python
68 lines
1.7 KiB
Python
import logging
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import platypush
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from threading import Thread
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def _default_on_init(backend):
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logging.info('Backend {} initialized'.format(backend.__module__))
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def _default_on_close(backend):
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logging.info('Backend {} terminated'.format(backend.__module__))
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def _default_on_msg(backend, msg):
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logging.info('Received message: {}'.format(msg))
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def _default_on_error(backend, error):
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logging.error(error)
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class Backend(Thread):
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def __init__(self, config, mq = None,
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on_init = _default_on_init,
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on_close = _default_on_close,
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on_error = _default_on_error):
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self.config = config
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self.mq = mq
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self.on_init = on_init
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self.on_close = on_close
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self.on_error = on_error
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Thread.__init__(self)
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logging.basicConfig(level=logging.INFO
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if 'logging' not in config
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else getattr(logging, config.pop('logging')))
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for cls in reversed(self.__class__.mro()):
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if cls is not object and hasattr(cls, '_init'):
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cls._init(self, **config)
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def is_local(self):
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from platypush.backend.local import LocalBackend
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return isinstance(self, LocalBackend)
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def on_msg(self, msg):
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if 'target' not in msg:
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return # No target
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target = msg.pop('target')
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if target != platypush.get_device_id() and not self.is_local():
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return # Not for me
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if 'action' not in msg:
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self.on_error('No action specified: {}'.format(msg))
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return
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self.mq.put(msg)
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def send_msg(self, msg):
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raise NotImplementedError()
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def run(self):
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raise NotImplementedError()
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# vim:sw=4:ts=4:et:
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