iotronic/lib/clients_wamp_rw.py

164 lines
5.0 KiB
Python

#########################################################################################
##
## The MIT License (MIT)
##
## Copyright (c) 2014 Andrea Rocco Lotronto
##
## Permission is hereby granted, free of charge, to any person obtaining a copy
## of this software and associated documentation files (the "Software"), to deal
## in the Software without restriction, including without limitation the rights
## to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
## copies of the Software, and to permit persons to whom the Software is
## furnished to do so, subject to the following conditions:
##
## The above copyright notice and this permission notice shall be included in all
## copies or substantial portions of the Software.
##
## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
## IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
## FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
## AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
## LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
## OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
## SOFTWARE.
########################################################################################
from autobahn.twisted.wamp import ApplicationSession
from autobahn.twisted.wamp import ApplicationSessionFactory
from autobahn.twisted.websocket import WampWebSocketClientFactory
from autobahn.wamp.types import ComponentConfig
from twisted.internet.defer import inlineCallbacks
from twisted.internet import reactor
from twisted.internet.endpoints import clientFromString
from twisted.python import log
import threading
import time
import sys
log.startLogging(sys.stdout)
##Global Variable for saving client writer session
sessio_writer=None
## WAMP Application Class for Writer Client ##
class AutobahnClientWriter(ApplicationSession):
@inlineCallbacks
def onJoin(self, details):
global sessio_writer
sessio_writer = self
yield log.msg('Client Writer Connected')
######################################################
## WAMP Application Class for Reader Client ##
class AutobahnClientReader(ApplicationSession):
@inlineCallbacks
def onJoin(self, details):
log.msg('Client Reader Connected')
self.topic_reader = self.config.extra['topicReader']
def onMessage(*args):
#DEBUG Message
log.msg('I receives',args)
##New Class Parser for MSG
try:
yield self.subscribe(onMessage, self.topic_reader)
print ("Subscribed to topic: "+self.topic_reader)
except Exception as e:
print("could not subscribe to topic:" +self.topic_reader)
######################################################
## Principal class for inizialating and starting clients WAMP
class WampClient():
def __init__(self, topicRead='board.connection'):#Sistemare
self._topicRead = None
self._debug = False
self._debug_wamp = False
self._debug_app = False
self._factoryWriter = None
self._factoryReader = None
self._realm = None
self._url = None
self._extra = {'topicReader': topicRead}
def connect(self, ip, port, realm):
self._realm = realm
self._url = 'ws://'+ip+':'+'/ws'
self._reactor_thread = None
self._session_factoryWriter = None
self._session_factoryReader = None
cfgReader = ComponentConfig(self._realm, self._extra)
cfgWriter = ComponentConfig(self._realm, self._extra)
self._session_factoryReader = ApplicationSessionFactory(cfgReader)
self._session_factoryReader.session = AutobahnClientReader
self._session_factoryWriter = ApplicationSessionFactory(cfgWriter)
self._session_factoryWriter.session = AutobahnClientWriter
self._factoryReader = WampWebSocketClientFactory(self._session_factoryReader, url = self._url,
debug = self._debug, debug_wamp = self._debug_wamp)
self._factoryWriter = WampWebSocketClientFactory(self._session_factoryWriter, url = self._url,
debug = self._debug, debug_wamp = self._debug_wamp)
self._reactor_thread = threading.Thread(target=reactor.run, args=(False,))
self._reactor_thread.daemon = True
endpoint_descriptor = 'tcp:'+ip+':'+port
self._clientReader = clientFromString(reactor, endpoint_descriptor)
self._clientReader.connect(self._factoryReader)
self._clientWriter = clientFromString(reactor, endpoint_descriptor)
self._clientWriter.connect(self._factoryWriter)
self._reactor_thread.start()
return self
##################################################################################
## Utility Class to wite on a specific topic ##
def writeToTopic(topic, message):
global sessio_writer
sessio_writer.publish(topic,message)
#######################################################
#####Config paramiters####
ipWamp = '172.17.3.139'
portWamp ='8181'
realmWAMP = 's4t'
##Topic Scrittura; Msg
##########################
if __name__ == '__main__':
client = WampClient()
test = client.connect(ipWamp, portWamp, realmWAMP)
while True:
time.sleep(2)
writeToTopic('board.connection', 'MEEEEEEEEEEEEEE')