mirror of
https://github.com/avatao-content/baseimage-tutorial-framework
synced 2024-07-11 11:38:45 +00:00
76 lines
2.2 KiB
Python
76 lines
2.2 KiB
Python
# Copyright (C) 2018 Avatao.com Innovative Learning Kft.
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# All Rights Reserved. See LICENSE file for details.
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from os.path import isdir, exists
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from tfw.components.directory_monitor import DirectoryMonitor
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from tfw.event_handler_base import TriggerlessEventHandler
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from tfw.config.logs import logging
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LOG = logging.getLogger(__name__)
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class DirectoryMonitoringEventHandler(TriggerlessEventHandler):
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def __init__(self, key, directory):
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super().__init__(key)
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self._directory = directory
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self._monitor = None
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self.reload_monitor()
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self.commands = {'pause': self.pause,
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'resume': self.resume,
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'ignore': self.ignore,
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'selectdir': self.selectdir}
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@property
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def directory(self):
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return self._directory
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@directory.setter
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def directory(self, directory):
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if not exists(directory) or not isdir(directory):
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raise EnvironmentError('No such directory!')
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self._directory = directory
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@property
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def monitor(self):
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return self._monitor
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def reload_monitor(self):
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if self._monitor:
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try:
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self._monitor.stop()
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except KeyError:
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logging.debug('Working directory was removed – ignoring...')
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self._monitor = DirectoryMonitor(self._directory)
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self._monitor.watch() # This runs on a separate thread
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def handle_event(self, key, message):
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try:
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message['data'] = self.commands[message['data']['command']](message['data'])
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return message
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except KeyError:
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LOG.error('IGNORING MESSAGE: Invalid message received: %s', message)
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def pause(self, data):
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self.monitor.pause()
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return data
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def resume(self, data):
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self.monitor.resume()
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return data
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def ignore(self, data):
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self.monitor.ignore += data['ignore']
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return data
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def selectdir(self, data):
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try:
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self.directory = data['directory']
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self.reload_monitor()
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return data
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except EnvironmentError:
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LOG.error('Failed to switch directory!')
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def cleanup(self):
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self.monitor.stop()
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