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Code Issues Releases Wiki Activity

Add frontend/eventhandler message callback capabilities to ZMQWSProxy

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This commit is contained in:
Kristóf Tóth 2018-07-13 14:08:30 +02:00
parent f6cc7ae495
commit d2084b2e51
1 changed files with 16 additions and 21 deletions
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35
lib/tfw/networking/server/zmq_websocket_proxy.py
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@ -17,13 +17,10 @@ class ZMQWebSocketProxy(WebSocketHandler):
def initialize(self, **kwargs): # pylint: disable=arguments-differ
self._event_handler_connector = kwargs['event_handler_connector']
self.init_callback_lists_from(
kwargs,
[
'message_handlers',
'proxy_filters'
]
)
self._message_handlers = kwargs.get('message_handlers', [])
self._frontend_message_handlers = kwargs.get('frontend_message_handlers', [])
self._eventhandler_message_handlers = kwargs.get('eventhandler_message_handlers', [])
self._proxy_filters = kwargs.get('proxy_filters', [])
self.proxy_eventhandler_to_websocket = TFWProxy(
self.send_eventhandler_message,
@ -36,22 +33,16 @@ class ZMQWebSocketProxy(WebSocketHandler):
self.subscribe_proxy_callbacks()
def init_callback_lists_from(self, init_kwargs, callback_lists):
for callback_list in callback_lists:
setattr(
self,
f'_{callback_list}',
init_kwargs.get(callback_list, [])
def subscribe_proxy_callbacks(self):
self.proxy_websocket_to_eventhandler.subscribe_proxy_callbacks_and_filters(
self._eventhandler_message_handlers + self._message_handlers,
self._proxy_filters
)
def subscribe_proxy_callbacks(self):
proxies = (
self.proxy_eventhandler_to_websocket,
self.proxy_websocket_to_eventhandler
self.proxy_eventhandler_to_websocket.subscribe_proxy_callbacks_and_filters(
self._frontend_message_handlers + self._message_handlers,
self._proxy_filters
)
for proxy in proxies:
proxy.proxy_filters.subscribe_callbacks(*self._proxy_filters)
proxy.proxy_callbacks.subscribe_callbacks(*self._message_handlers)
def prepare(self):
ZMQWebSocketProxy.instances.add(self)
@ -139,3 +130,7 @@ class TFWProxy:
LOG.debug('Broadcasting message: %s', message)
self.to_source(message)
self.to_destination(message)
def subscribe_proxy_callbacks_and_filters(self, proxy_callbacks, proxy_filters):
self.proxy_callbacks.subscribe_callbacks(*proxy_callbacks)
self.proxy_filters.subscribe_callbacks(*proxy_filters)