60 lines
2.2 KiB
Python
60 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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from pydispatch import dispatcher
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import abc
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from media.monitor.log import Loggable
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import media.monitor.pure as mmp
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# Defines the handle interface
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class Handles(object):
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__metaclass__ = abc.ABCMeta
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@abc.abstractmethod
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def handle(self, sender, event, *args, **kwargs): pass
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# TODO : Investigate whether weak reffing in dispatcher.connect could possibly
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# cause a memory leak
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class ReportHandler(Handles):
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"""
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A handler that can also report problem files when things go wrong
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through the report_problem_file routine
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"""
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__metaclass__ = abc.ABCMeta
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def __init__(self, signal, weak=False):
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self.signal = signal
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self.report_signal = "badfile"
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def dummy(sender, event): self.handle(sender,event)
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dispatcher.connect(dummy, signal=signal, sender=dispatcher.Any,
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weak=weak)
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def report_problem_file(self, event, exception=None):
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dispatcher.send(signal=self.report_signal, sender=self, event=event,
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exception=exception)
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class ProblemFileHandler(Handles, Loggable):
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"""
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Responsible for answering to events passed through the 'badfile'
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signal. Moves the problem file passed to the designated directory.
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"""
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def __init__(self, channel, **kwargs):
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self.channel = channel
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self.signal = self.channel.signal
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self.problem_dir = self.channel.path
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def dummy(sender, event, exception):
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self.handle(sender, event, exception)
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dispatcher.connect(dummy, signal=self.signal, sender=dispatcher.Any,
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weak=False)
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mmp.create_dir( self.problem_dir )
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self.logger.info("Initialized problem file handler. Problem dir: '%s'" %
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self.problem_dir)
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def handle(self, sender, event, exception=None):
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# TODO : use the exception parameter for something
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self.logger.info("Received problem file: '%s'. Supposed to move it to \
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problem dir", event.path)
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try: mmp.move_to_dir(dir_path=self.problem_dir, file_path=event.path)
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except Exception as e:
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self.logger.info("Could not move file: '%s' to problem dir: '%s'" %
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(event.path, self.problem_dir))
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self.logger.info("Exception: %s" % str(e))
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