Refactoring and adding dockerfile.

2022/01/tornado_demo1/.gitignore

@@ -1,3 +1,3 @@
-.idea
-*.iml
-env
+.idea
+*.iml
+env

2022/01/tornado_demo1/Dockerfile

@@ -0,0 +1,6 @@
+FROM python:3.8-slim-buster
+COPY ./src /app
+COPY ./requirements.txt /app/requirements.txt
+WORKDIR /app
+RUN python3 -m pip install -r /app/requirements.txt
+CMD [ "python3", "/app/server.py" ]

2022/01/tornado_demo1/requirements.txt

@@ -1 +1 @@
-tornado
+tornado

2022/01/tornado_demo1/src/client.py

@@ -1,45 +1,45 @@
-from tornado.ioloop import IOLoop, PeriodicCallback
-from tornado import gen
-from tornado.websocket import websocket_connect
-
-
-class Client(object):
-    def __init__(self, url, timeout):
-        self.url = url
-        self.timeout = timeout
-        self.ioloop = IOLoop.instance()
-        self.ws = None
-        self.connect()
-        PeriodicCallback(self.keep_alive, 20000).start()
-        self.ioloop.start()
-
-    @gen.coroutine
-    def connect(self):
-        print("trying to connect")
-        try:
-            self.ws = yield websocket_connect(self.url)
-            print("connected")
-            self.run()
-        except Exception:
-            print("connection error")
-
-    @gen.coroutine
-    def run(self):
-        while True:
-            msg = yield self.ws.read_message()
-            if msg is None:
-                print("connection closed")
-                self.ws = None
-                break
-            else:
-                print("Got a message: " + msg)
-
-    def keep_alive(self):
-        if self.ws is None:
-            self.connect()
-        else:
-            self.ws.write_message("keep alive")
-
-
-if __name__ == "__main__":
-    client = Client("ws://localhost:8888/socket", 5)
+from tornado.ioloop import IOLoop, PeriodicCallback
+from tornado import gen
+from tornado.websocket import websocket_connect
+
+
+class Client(object):
+    def __init__(self, url, timeout):
+        self.url = url
+        self.timeout = timeout
+        self.ioloop = IOLoop.instance()
+        self.ws = None
+        self.connect()
+        PeriodicCallback(self.keep_alive, 20000).start()
+        self.ioloop.start()
+
+    @gen.coroutine
+    def connect(self):
+        print("trying to connect")
+        try:
+            self.ws = yield websocket_connect(self.url)
+            print("connected")
+            self.run()
+        except Exception:
+            print("connection error")
+
+    @gen.coroutine
+    def run(self):
+        while True:
+            msg = yield self.ws.read_message()
+            if msg is None:
+                print("connection closed")
+                self.ws = None
+                break
+            else:
+                print("Got a message: " + msg)
+
+    def keep_alive(self):
+        if self.ws is None:
+            self.connect()
+        else:
+            self.ws.write_message("keep alive")
+
+
+if __name__ == "__main__":
+    client = Client("ws://localhost:8888/socket", 5)

2022/01/tornado_demo1/src/server.py

@@ -1,26 +1,28 @@
-import tornado.ioloop
-import tornado.web
-import tornado.websocket
-
-class MainHandler(tornado.web.RequestHandler):
-    def get(self):
-        self.write("Hello, world")
-
-class WebsocketHandler(tornado.websocket.WebSocketHandler):
-    def open(self):
-        print("Opened...")
-
-    def on_message(self, message):
-        print("Got a message: " + message)
-        self.write_message(u"You wrote: {0}".format(message))
-
-    def on_close(self):
-        print("Closed...")
-
-if __name__ == "__main__":
-    application = tornado.web.Application([
-        (r"/", MainHandler),
-        (r"/socket", WebsocketHandler),
-    ])
-    application.listen(8888)
-    tornado.ioloop.IOLoop.current().start()
+import tornado.ioloop
+import tornado.web
+import tornado.websocket
+
+class MainHandler(tornado.web.RequestHandler):
+    def get(self):
+        self.write("Hello, world")
+
+class WebsocketHandler(tornado.websocket.WebSocketHandler):
+    def open(self):
+        print("Opened...")
+
+    def on_message(self, message):
+        print("Got a message: " + message)
+        self.write_message(u"You wrote: {0}".format(message))
+
+    def on_close(self):
+        print("Closed...")
+
+if __name__ == "__main__":
+    print("Start of the server...")
+    application = tornado.web.Application([
+        (r"/", MainHandler),
+        (r"/socket", WebsocketHandler),
+    ])
+    print("Starting to listen on port 8888")
+    application.listen(8888)
+    tornado.ioloop.IOLoop.current().start()