def on_run(self, request):
flow_id = request.payload['flow_id']
prj_id = request.payload['prj_id']
try:
flow = FlowFile.objects.get(id=flow_id)
except FlowFile.DoesNotExist:
return api.IncorrectResponse(request, reason="没有找到id={}的流程".format(flow_id)).do_response()
flow_file_abs_path = flow.get_flow_file_as_abs_path()
loader = flowex.FlowLoader()
status, src_obj, reason = loader.load_source_from_abs_path(flow.name, flow_file_abs_path)
if status != api.OK:
return api.IncorrectResponse(request, reason=reason).do_response()
status, flow_obj, reason = src_obj.compile()
if status != api.OK:
return api.IncorrectResponse(request, reason=reason).do_response()
status, _, reason = flow_obj.link()
if status != api.OK:
return api.IncorrectResponse(request, reason=reason).do_response()
self.srv.startup_worker(prj_id, flow_id, loader, src_obj, flow_obj)
return api.CorrectResponse(request).do_response()
def process_control_command(self):
"""处理设备的控制命令"""
status, length, reason = api.device_get_control_command_length(self.dev_type)
if status != api.OK:
print(reason)
return
if not length:
return
load = time.time()
# 执行时间限制在500毫秒
while length > 0 and time.time() - load < 0.5:
status, request, reason = api.device_get_control_command(self.dev_type)
if status != api.OK:
break
if request is None:
break
if request.is_expire() is True:
plog.warn("接收到过期的命令：", command=str(request))
break
request.dump()
response = api.IncorrectResponse(request, reason='还未实现')
response.do_response()
response.dump()
def run_until_exit(self, *args, **kwargs):
plog.info("{}模拟驱动已启动，pid: {}, 工作目录: {}".format(Information.device_name, os.getpid(), os.getcwd()))
#self.channel = self.open_channel()
self.pubsub.psubscribe(profile.get_device_control_command_path(Information.dev_type))
while True:
api.device_set_profile_statement(Information.dev_type,self.get_driver_statement())
# 200毫秒用于等待命令消息
pack = self.pubsub.get_message(ignore_subscribe_messages=True, timeout=0.2)
if pack:
data = json.loads(pack['data'])
request = api.Request.load_request_from_json(data)
response = oyo.process_control(self.channel, self.address, request, **request.payload)
else:
request = None
response = None
self.period_controller.probe_period_delay()
input_registers = oyo.device_read_all_register(self.channel, self.address)
if input_registers is None:
plog.error("返回数据错误, 5秒后重连")
time.sleep(5)
self.channel.close()
self.channel = self.open_channel()
continue
if pack and request:
if not response:
api.IncorrectResponse(request, '没有正确应答').do_response()
else:
response.do_response()
api.device_set_data_registers(Information.dev_type, input_registers)
time.sleep(0.3)
def i_not_supported(*args):
return api.IncorrectResponse(request, "不支持的功能")
def on_not_supported_command(request):
return api.IncorrectResponse(request, reason="不支持的命令").do_response()
def on_run(request):
return api.IncorrectResponse(request, reason="流程正在执行中").do_response()
def on_stop(request):
return api.IncorrectResponse(request, reason="流程还未执行").do_response()