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LawouachLawouach
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adding some example: a chat simple demo and an android based sensor dispatcher
1 parent a140c16 commit 090174d

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‎example/droid_sensor.py‎

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# -*- coding: utf-8 -*-
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__doc__ = """
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WebSocket client that pushes Android sensor metrics to the
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websocket server it is connected to.
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In order to set this up:
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1. Install SL4A http://code.google.com/p/android-scripting/
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2. Install the Python package for SL4A
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3. Build ws4py and copy the package built into a directory
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called com.googlecode.pythonforandroid/extras/python on
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your Android device.
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4. a. Either copy the droid_sensor.py module into the directory
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called sl4a/scripts on your Android device.
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b. Or set up the remote control so that you can run the
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module from your computer directly on your device:
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http://code.google.com/p/android-scripting/wiki/RemoteControl
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5. Setup the device so that it has an IP address on the same
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network as the computer running the server.
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Run the example:
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1. Start the echo_cherrypy_server module:
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$ python example/echo_cherrypy_server.py
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2. From a local browser, go to:
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http://localhost:9000/
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3. Edit the droid_sensor module to set the appropriate
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IP address where your server is running.
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4. Run the droid_sensor module (from the device or
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your computer depending on your setup):
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$ python example/droid_sensor.py
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5. If your device isn't idled, just move ir around
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for the metrics to be sent to the server which
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will dispatch them to the browser's client.
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6. Profit???
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"""
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import time
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import math
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import android
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from ws4py.client.threadedclient import WebSocketClient
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class AirPongSensor(object):
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def __init__(self, host):
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self.droid = android.Android()
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#self.droid.startSensingThreshold(1, 0, 7)
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#self.droid.startSensingThreshold(2, 1, 2)
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self.droid.startSensingTimed(1, 500)
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self.running = False
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self.client = AirPongWebSocketClient(host)
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self.client.connect()
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def run(self):
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try:
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self.running = True
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last = [None, None, None]
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while self.running:
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azimuth, pitch, roll = self.droid.sensorsReadOrientation().result
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accel = x, y, z = self.droid.sensorsReadAccelerometer().result
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if azimuth is None:
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continue
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c = lambda rad: rad * 360.0 / math.pi
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print c(azimuth), c(pitch), c(roll), x, y, z
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if self.client.terminated:
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break
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if accel != [None, None, None] and accel != last:
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last = accel
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self.client.send("%s %s %s %s %s %s" % (c(azimuth), c(pitch), c(roll), x, y, z))
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time.sleep(1)
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finally:
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self.terminate()
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def terminate(self):
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if not self.droid:
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return
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self.running = False
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self.droid.stopSensing()
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self.droid = None
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if not self.client.terminated:
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self.client.close()
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self.client._th.join()
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self.client = None
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class AirPongWebSocketClient(WebSocketClient):
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def received_message(self, m):
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print m, len(str(m))
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if __name__ == '__main__':
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aps = AirPongSensor(host='http://192.168.0.10:9000/ws')
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try:
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aps.run()
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except KeyboardInterrupt:
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aps.terminate()

‎example/echo_cherrypy_server.py‎

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# -*- coding: utf-8 -*-
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import random
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import cherrypy
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from ws4py.server.cherrypyserver import WebSocketPlugin, WebSocketTool
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from ws4py.server.handler.threadedhandler import WebSocketHandler, EchoWebSocketHandler
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class ChatWebSocketHandler(WebSocketHandler):
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def received_message(self, m):
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cherrypy.engine.publish('websocket-broadcast', str(m))
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class Root(object):
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@cherrypy.expose
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def index(self):
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return """<html>
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<head>
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<script type='application/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js'> </script>
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<script type='application/javascript'>
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$(document).ready(function() {
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var ws = new WebSocket('ws://localhost:9000/ws');
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ws.onmessage = function (evt) {
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$('#chat').val($('#chat').val() + evt.data + '\\n');
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};
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ws.onopen = function() {
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ws.send("%(username)s entered the room");
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};
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$('#chatform').submit(function() {
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ws.send('%(username)s: ' + $('#message').val());
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$('#message').val("");
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return false;
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});
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});
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</script>
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</head>
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<body>
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<form action='/echo' id='chatform' method='get'>
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<textarea id='chat' cols='35' rows='10'></textarea>
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<br />
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<label for='message'>%(username)s: </label><input type='text' id='message' />
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<input type='submit' value='Send' />
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</form>
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</body>
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</html>
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""" % {'username': "User%d" % random.randint(0, 100)}
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@cherrypy.expose
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def ws(self):
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cherrypy.log("Handler created: %s" % repr(cherrypy.request.ws_handler))
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if __name__ == '__main__':
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cherrypy.config.update({'server.socket_host': '0.0.0.0',
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'server.socket_port': 9000})
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WebSocketPlugin(cherrypy.engine).subscribe()
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cherrypy.tools.websocket = WebSocketTool()
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cherrypy.quickstart(Root(), '', config={
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'/ws': {
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'tools.websocket.on': True,
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'tools.websocket.handler_cls': ChatWebSocketHandler
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}
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}
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)

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