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https://github.com/avatao-content/baseimage-tutorial-framework
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45 lines
1.7 KiB
Python
45 lines
1.7 KiB
Python
import zmq
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from zmq.eventloop import ioloop
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from zmq.eventloop.zmqstream import ZMQStream
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from ..config import PUBLISHER_PORT, RECEIVER_PORT
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from ..config.logs import logging
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log = logging.getLogger(__name__)
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from ..util import parse_anchor_from_message, ZMQConnectorBase
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ioloop.install()
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class EventHandlerDownlinkConnector(ZMQConnectorBase):
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def __init__(self, zmq_context=None):
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super(EventHandlerDownlinkConnector, self).__init__(zmq_context)
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self._zmq_pull_socket = self._zmq_context.socket(zmq.PULL)
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self._zmq_pull_stream = ZMQStream(self._zmq_pull_socket)
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address = 'tcp://*:{}'.format(RECEIVER_PORT)
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self._zmq_pull_socket.bind(address)
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log.debug('Pull socket bound to {}'.format(address))
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class EventHandlerUplinkConnector(ZMQConnectorBase):
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def __init__(self, zmq_context=None):
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super(EventHandlerUplinkConnector, self).__init__(zmq_context)
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self._zmq_pub_socket = self._zmq_context.socket(zmq.PUB)
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address = 'tcp://*:{}'.format(PUBLISHER_PORT)
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self._zmq_pub_socket.bind(address)
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log.debug('Pub socket bound to {}'.format(address))
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class EventHandlerConnector(EventHandlerDownlinkConnector, EventHandlerUplinkConnector):
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def __init__(self, zmq_context=None):
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super(EventHandlerConnector, self).__init__(zmq_context)
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def register_callback(self, callback):
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self._zmq_pull_stream.on_recv(callback)
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def send_message(self, message: str, anchor: str = None):
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if not anchor:
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anchor = parse_anchor_from_message(message)
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encoded_message = [part.encode('utf-8') for part in (anchor, message)]
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self._zmq_pub_socket.send_multipart(encoded_message)
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