我有一个弹性URL作为环境变量传递给post方法,我已经从tornado_sqlalchemy中声明了make_session_factory,并传递给requesthandler,我应该如何自我接收呢,下面是我的代码
class MyHandler(RequestHandler):
_thread_pool = ThreadPoolExecutor(max_workers=10)
def initialize(self, session_factory):
self.session_factory = session_factory
@gen.coroutine
def post(self):
try:
data = tornado.escape.json_decode(self.request.body)
yield self.predict('mod1')
except Exception:
self.respond('server_error', 500)
@concurrent.run_on_executor(executor='_thread_pool')
def _b_run(self, mod, X):
results = do some calculation
return results
@gen.coroutine
def predict(self, mod):
model = mod(load from database)
values = (load from database)
results = yield self._b_run(model, values)
self.respond(results)
def respond(self, code=200):
self.set_status(code)
self.write(json.JSONEncoder().encode({
"status": code
}))
self.finish()
def mod(model):
#Elastic Client
es = Elasticsearch([{'host': 'localhost', 'port': 9200}])
……...Load model
return model
factory = make_session_factory(os.environ.get('DATABASE_URL', ''))
define('port', default=8888, help='Tornado port to listen on')
def make_app():
url = [(r"/pred", PredictionHandler)]
return Application(url,session_factory=factory)
if __name__ == "__main__":
application = make_app()
http_server = HTTPServer(application)
http_server.listen(options.port)
IOLoop.current().start()
目前,我已经在我的mod函数中将URL编码为localhost 9200
要将其作为环境变量传递,我已经创建了工厂,并在应用程序中将其作为session_factory传递给了工厂,
我必须在我的requesthandler post方法中接收它,以便我可以传递给我的预测方法,该方法随后将调用我的mod函数,我可能知道如何接收它。我尝试使用Initialize,但无法正常工作。
还发现了另一种使用龙卷风电机的选择
import motor.motor_tornado
client = motor.motor_tornado.MotorClient('localhost', 9200)
db = motor.motor_tornado.MotorClient().test_database
application = tornado.web.Application([
(r'/', MainHandler)
], db=db)
class MainHandler(tornado.web.RequestHandler):
def get(self):
db = self.settings['db']
我还必须在发帖方式中接收
答案 0 :(得分:1)
您可以通过Application
中的任何请求处理程序使用传递给self.settings
类的任何其他参数。
因此,您可以像这样修改initialize
方法:
def initialize(self):
self.session_factory = self.settings['session_factory']
# and just use `self.session_factory` in any other method where you need it