mirror of
https://github.com/avatao-content/baseimage-tutorial-framework
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44 lines
1.4 KiB
Python
44 lines
1.4 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 tornado.web import Application
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from tfw.networking.event_handlers import ServerUplinkConnector
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from tfw.networking.server import EventHandlerConnector
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from tfw.config.logs import logging
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from .zmq_websocket_proxy import ZMQWebSocketProxy
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LOG = logging.getLogger(__name__)
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class TFWServer:
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"""
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This class handles the proxying of messages between the frontend and event handers.
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It proxies messages from the "/ws" route to all event handlers subscribed to a ZMQ
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SUB socket.
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"""
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def __init__(self):
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self._event_handler_connector = EventHandlerConnector()
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self._uplink_connector = ServerUplinkConnector()
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self.application = Application([(
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r'/ws', ZMQWebSocketProxy,{
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'event_handler_connector': self._event_handler_connector,
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'message_handlers': [self.handle_trigger]
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})]
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)
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def handle_trigger(self, message):
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if 'trigger' in message:
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LOG.debug('Executing handler for trigger "%s"', message.get('trigger', ''))
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self._uplink_connector.send_to_eventhandler({
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'key': 'fsm',
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'data': {
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'command': 'trigger',
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'value': message.get('trigger', '')
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}
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})
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def listen(self, port):
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self.application.listen(port)
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