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https://github.com/avatao-content/baseimage-tutorial-framework
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38 lines
1.5 KiB
Python
38 lines
1.5 KiB
Python
import zmq
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from zmq.eventloop.zmqstream import ZMQStream
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from tfw.networking.zmq_connector_base import ZMQConnectorBase
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from tfw.networking.serialization import serialize_all
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from tfw.config import TFWENV
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from tfw.config.logs import logging
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LOG = logging.getLogger(__name__)
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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(TFWENV.RECEIVER_PORT)
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self._zmq_pull_socket.bind(address)
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LOG.debug('Pull socket bound to %s', 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(TFWENV.PUBLISHER_PORT)
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self._zmq_pub_socket.bind(address)
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LOG.debug('Pub socket bound to %s', address)
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class EventHandlerConnector(EventHandlerDownlinkConnector, EventHandlerUplinkConnector):
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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: dict, key: str = None):
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if not key: key = message.get('key', '')
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self._zmq_pub_socket.send_multipart(serialize_all(key, message))
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