kiln_controller/kiln/server.py

import time
import os
import json
import tornado.ioloop
import tornado.web
from tornado import websocket

cwd = os.path.split(os.path.abspath(__file__))[0]

class ClientSocket(websocket.WebSocketHandler):
    def initialize(self, parent):
        self.parent = parent

    def open(self):
        self.parent.sockets.append(self)

    def on_close(self):
        self.parent.sockets.remove(self)

class WebApp(object):
    def __init__(self, handlers, port=8888):
        self.handlers = [
            (r"/ws/", ClientSocket, dict(parent=self)),
            (r"/(.*)", tornado.web.StaticFileHandler, dict(path=cwd)),
        ]
        self.sockets = []
        self.port = port

    def send(self, data):
        jsondat = json.dumps(data)
        for sock in self.sockets:
            socket.write_message(jsondat)

    def run(self):
        self.app = tornado.web.Application(self.handlers, gzip=True)
        self.app.listen(8888)
        tornado.ioloop.IOLoop.instance().start()

if __name__ == "__main__":
    import thermo
    monitor = thermo.Monitor()

    app = WebApp([])
    def send_temp(time, temp):
        app.send(dict(time=time, temp=temp))
    monitor.callback = send_temp
    monitor.start()
    app.run()