69 lines
1.7 KiB
Python
69 lines
1.7 KiB
Python
import paho.mqtt.client as mqtt
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import ssl
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import redis
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import time
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import signal
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import sys
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import os
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import json
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class RiderLocationCache(object):
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def run(self, client):
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print "running loop..."
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client.loop_forever()
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# TODO: fix this and put these guys back under the class
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def init_subscriptions(client):
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print "subscribing to wildcard #"
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client.subscribe('#')
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def on_connect(client, userdata, flags, rc):
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init_subscriptions(client)
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#print("Connected with result code "+str(rc))
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# client.subscribe("$SYS/#")
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def user_data_set(userdata):
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conn = redis.StrictRedis(host='localhost', port=6379, db=0)
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return conn
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def on_publish(client, userdata, mid):
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pass
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def on_message(client, userdata, message):
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redis_conn = user_data_set(userdata)
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#print("message topic=", message.topic[0:10])
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if message.topic[0:10] != 'motorider_':
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return
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#print repr(message)
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# check if json decodable
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res = json.loads(message.payload)
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#print res
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# get rider session id
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sess_id = message.topic[10:]
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# check if it has event
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if 'event' not in res:
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return
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# check if event is driver_location
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if res['event'] != 'driver_location':
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return
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# save the longitude and latitude
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# get the rider id from sess_id
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rider_key = "rider.location.%s" % sess_id
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rider_long = str(res['longitude'])
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rider_lat = str(res['latitude'])
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# set the location
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redis_conn.hmset(rider_key, {'longitude': rider_long, 'latitude': rider_lat})
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# update our redis key
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key = 'location_%s' % sess_id
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#print "setting %s" % key
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redis_conn.setex(key, 1600, message.payload)
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