def _handle_FlowStatsReceived(self, event):
stats = flow_stats_to_list(event.stats)
log.info("GOT STATS")
#log.info(stats)
switch = event.dpid
local = [e for e in self.flows if e.switch == switch]
for flow in stats:
f = lib.match_to_flow(flow['match'])
#log.info("{0} became {1}".format(flow,f))
if not f:
continue
try:
entry = next(e for e in local if e.flow == f)
log.info("just getting old entry for {0}".format(f))
except StopIteration:
log.info("making a new entry for {0}".format(f))
entry = lib.Entry(switch, f)
self.flows.append(entry)
bc = int(flow['byte_count'])
log.info("old total: {0}, new total: {1}, diff: {2}, recent: {3}".format(entry.total, bc, bc-entry.total, (bc-entry.total)/self.period))
entry.recent = (bc - entry.total) / self.period
entry.total = bc
def _handle_FlowStatsReceived(self, event):
"""
Handle OFPT_STATS_REPLY messages from switches.
Add a new entry if flow is previously unseen, else update the old.
"""
stats = flow_stats_to_list(event.stats)
switch = event.dpid
local = [e for e in self.flows if e.switch == switch]
log.info("stats on switch {0}".format(switch))
log.info(stats)
for flow in stats:
f = lib.match_to_flow(flow['match'])
if not f:
continue
try:
entry = next(e for e in local if e.flow == f)
except StopIteration:
entry = lib.Entry(switch, f)
self.flows.append(entry)
bc = int(flow['byte_count']) * 8 # want everything in bits
entry.recent = (bc - entry.total) / self.period
entry.total = bc
if entry.recent <= 20000:
self.flows.remove(entry)
