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97 lines
2.5 KiB
97 lines
2.5 KiB
from plex.lib import six as six
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from plex.lib.six.moves import xrange
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from plex_activity.sources import Logging, WebSocket
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from pyemitter import Emitter
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import logging
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log = logging.getLogger(__name__)
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class ActivityMeta(type):
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def __getitem__(self, key):
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for (weight, source) in self.registered:
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if source.name == key:
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return source
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return None
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@six.add_metaclass(ActivityMeta)
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class Activity(Emitter):
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registered = []
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def __init__(self, sources=None):
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self.available = self.get_available(sources)
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self.enabled = []
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def start(self, sources=None):
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# TODO async start
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if sources is not None:
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self.available = self.get_available(sources)
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# Test methods until an available method is found
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for weight, source in self.available:
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if weight is None:
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# None = always start
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self.start_source(source)
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elif source.test():
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# Test passed
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self.start_source(source)
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else:
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log.info('activity source "%s" is not available', source.name)
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log.info(
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'Finished starting %s method(s): %s',
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len(self.enabled),
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', '.join([('"%s"' % source.name) for source in self.enabled])
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)
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def start_source(self, source):
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instance = source(self)
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instance.start()
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self.enabled.append(instance)
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def __getitem__(self, key):
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for (weight, source) in self.registered:
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if source.name == key:
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return source
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return None
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@classmethod
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def get_available(cls, sources):
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if sources:
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return [
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(weight, source) for (weight, source) in cls.registered
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if source.name in sources
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]
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return cls.registered
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@classmethod
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def register(cls, source, weight=None):
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item = (weight, source)
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# weight = None, highest priority
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if weight is None:
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cls.registered.insert(0, item)
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return
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# insert in DESC order
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for x in xrange(len(cls.registered)):
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w, _ = cls.registered[x]
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if w is not None and w < weight:
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cls.registered.insert(x, item)
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return
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# otherwise append
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cls.registered.append(item)
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# Register activity sources
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Activity.register(WebSocket)
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Activity.register(Logging, weight=1)
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