[Ryu-devel] error in simple_monitor

[wesam kh]

hi ever one 

I need to apply the simple_monitor.py application in ryu controller but I got 
some error : 
line 21 self.logger.debug ('register datapath: %016',datapath.id)
syntaxError : invalid Syntax
the file of simple_monitro.py and the picture of error in the attachment 
can any one how can I resolve this error ?
thank you in advance
 





Wisam Maala

# -*- coding: utf-8 -*
from operator import attrgetter

from ryu.app import simple_switch_13
from ryu.controller import ofp_event
from ryu.controller.handler import MAIN_DISPATCHER, DEAD_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.lib import hub

class SimpleMonitor(simple_switch_13.SimpleSwitch13):

	def __init__(self, *args, **kwargs):
		super(SimpleMonitor, self).__init__(*args, **kwargs)
		self.datapaths = {}
		self.monitor_thread = hub.spawn(self._monitor)
	@set_ev_cls(ofp_event.EventOFPStateChange,[MAIN_DISPATCHER, DEAD_DISPATCHER])
	def _state_change_handler(self, ev):
		datapath = ev.datapath
		if ev.state == MAIN_DISPATCHER:
			if not datapath.id in self.datapaths:
				self.logger.debug(’register datapath: %016x’, datapath.id)
				self.datapaths[datapath.id] = datapath
		elif ev.state == DEAD_DISPATCHER:
			if datapath.id in self.datapaths:
				self.logger.debug(’unregister datapath: %016x’, datapath.id)
				del self.datapaths[datapath.id]
	def _monitor(self):
		while True:
			for dp in self.datapaths.values():
				self._request_stats(dp)
			hub.sleep(10)
	def _request_stats(self, datapath):
		self.logger.debug(’send stats request: %016x’, datapath.id)
		ofproto = datapath.ofproto
		parser = datapath.ofproto_parser
		req = parser.OFPFlowStatsRequest(datapath)
		datapath.send_msg(req)
		req = parser.OFPPortStatsRequest(datapath, 0, ofproto.OFPP_ANY)
		datapath.send_msg(req)
	@set_ev_cls(ofp_event.EventOFPFlowStatsReply, MAIN_DISPATCHER)
	def _flow_stats_reply_handler(self, ev):
		body = ev.msg.body
		self.logger.info(’datapath
		’
		’in-port eth-dst
		’
		’out-port packets bytes’)
		self.logger.info(’---------------- ’
		’-------- ----------------- ’
		’-------- -------- --------’)
		for stat in sorted([flow for flow in body if flow.priority == 1],
		key=lambda flow: (flow.match[’in_port’],
		flow.match[’eth_dst’])):
			self.logger.info(’%016x %8x %17s %8x %8d %8d’,
			ev.msg.datapath.id,
			stat.match[’in_port’], stat.match[’eth_dst’],
			stat.instructions[0].actions[0].port,
			stat.packet_count, stat.byte_count)
	@set_ev_cls(ofp_event.EventOFPPortStatsReply, MAIN_DISPATCHER)
	def _port_stats_reply_handler(self, ev):
		body = ev.msg.body
		self.logger.info(’datapath
		port
		’
		’rx-pkts rx-bytes rx-error ’
		’tx-pkts tx-bytes tx-error’)
		self.logger.info(’---------------- -------- ’
		’-------- -------- -------- ’
		’-------- -------- --------’)
		for stat in sorted(body, key=attrgetter(’port_no’)):
			self.logger.info(’%016x %8x %8d %8d %8d %8d %8d %8d’,
			ev.msg.datapath.id, stat.port_no,
			stat.rx_packets, stat.rx_bytes, stat.rx_errors,
			stat.tx_packets, stat.tx_bytes, stat.tx_errors)

------------------------------------------------------------------------------
Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San
Francisco, CA to explore cutting-edge tech and listen to tech luminaries
present their vision of the future. This family event has something for
everyone, including kids. Get more information and register today.
http://sdm.link/attshape
_______________________________________________
Ryu-devel mailing list
Ryu-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ryu-devel