baseimage-tutorial-framework/lib/tfw/networking/server/controller_responder.py

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from tfw.networking.controller_connector import ControllerConnector
from tfw.networking.serialization import deserialize_all, serialize_all
class ControllerResponder:
def __init__(self, fsm):
self.fsm = fsm
self.controller_connector = ControllerConnector()
self.controller_connector.register_callback(self.handle_controller_request)
self.controller_request_handlers = {
'solution_check': self.handle_solution_check_request,
'test': self.handle_test_request
}
def handle_controller_request(self, stream, msg_parts):
key, data = deserialize_all(*msg_parts)
response = self.controller_request_handlers[key](data)
stream.send_multipart(serialize_all(key, response))
def handle_test_request(self, data):
return 'OK'
def handle_solution_check_request(self, data):
return {
'solved': self.fsm.is_solved(),
'message': 'solved' if self.fsm.is_solved() else 'not solved'
}