mirror of
https://github.com/avatao-content/baseimage-tutorial-framework
synced 2024-09-16 23:44:10 +00:00
80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
# Copyright (C) 2018 Avatao.com Innovative Learning Kft.
|
|
# All Rights Reserved. See LICENSE file for details.
|
|
|
|
from functools import partial
|
|
|
|
import zmq
|
|
from zmq.eventloop.zmqstream import ZMQStream
|
|
|
|
from tfw.networking import serialize_tfw_msg, with_deserialize_tfw_msg
|
|
from tfw.networking import ZMQConnectorBase
|
|
from tfw.config import TFWENV
|
|
from tfw.config.logs import logging
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class ServerDownlinkConnector(ZMQConnectorBase):
|
|
def __init__(self, zmq_context=None):
|
|
super(ServerDownlinkConnector, self).__init__(zmq_context)
|
|
self._zmq_sub_socket = self._zmq_context.socket(zmq.SUB)
|
|
self._zmq_sub_socket.connect(f'tcp://localhost:{TFWENV.PUBLISHER_PORT}')
|
|
self._zmq_sub_stream = ZMQStream(self._zmq_sub_socket)
|
|
|
|
self.subscribe = partial(self._zmq_sub_socket.setsockopt_string, zmq.SUBSCRIBE)
|
|
self.unsubscribe = partial(self._zmq_sub_socket.setsockopt_string, zmq.UNSUBSCRIBE)
|
|
|
|
def register_callback(self, callback):
|
|
callback = with_deserialize_tfw_msg(callback)
|
|
self._zmq_sub_stream.on_recv(callback)
|
|
|
|
|
|
class ServerUplinkConnector(ZMQConnectorBase):
|
|
"""
|
|
Class capable of sending messages to the TFW server and event handlers.
|
|
"""
|
|
def __init__(self, zmq_context=None):
|
|
super(ServerUplinkConnector, self).__init__(zmq_context)
|
|
self._zmq_push_socket = self._zmq_context.socket(zmq.PUSH)
|
|
self._zmq_push_socket.connect(f'tcp://localhost:{TFWENV.RECEIVER_PORT}')
|
|
|
|
def send_to_eventhandler(self, message):
|
|
"""
|
|
Send a message to an event handler through the TFW server.
|
|
|
|
This envelopes the desired message in the 'data' field of the message to
|
|
TFWServer, which will mirror it to event handlers.
|
|
|
|
:param message: JSON message you want to send
|
|
"""
|
|
self.send({
|
|
'key': 'mirror',
|
|
'data': message
|
|
})
|
|
|
|
def send(self, message):
|
|
"""
|
|
Send a message to the frontend through the TFW server.
|
|
|
|
:param message: JSON message you want to send
|
|
"""
|
|
self._zmq_push_socket.send_multipart(serialize_tfw_msg(message))
|
|
|
|
def broadcast(self, message):
|
|
"""
|
|
Broadast a message through the TFW server.
|
|
|
|
This envelopes the desired message in the 'data' field of the message to
|
|
TFWServer, which will broadast it.
|
|
|
|
:param message: JSON message you want to send
|
|
"""
|
|
self.send({
|
|
'key': 'broadcast',
|
|
'data': message
|
|
})
|
|
|
|
|
|
class ServerConnector(ServerUplinkConnector, ServerDownlinkConnector):
|
|
pass
|