def POISocketSender(self):
try:
print "\tin POISocketSender"
messageNum = 1
while self.close == False:
while self.sendingData != True and self.close == False:
time.sleep(0.1)
while self.sendingData == True and self.close == False:
# TODO only sent requested types
syncTime = time.time()
POIToSend = [(uid, point.toDict()) for uid, point in POIelements.items() if point.getTimestamp() >= self.lastSync] # and point.type in self.overlays]
jsonPOI = json.dumps({"POI":dict(POIToSend)})
print "\tSS message #{0} : {1} ({2} points, connection {3}, lastSync {4})".format(
messageNum, "not shown", len(POIToSend), self.connectionNumber, self.lastSync)
self.lastSync = syncTime
self.clientsocket.sendall(jsonPOI + "\n")
messageNum += 1
time.sleep(3.875 + (random.random() / 4.0)) # 4 second average pause
except KeyboardInterrupt:
print "\tPSS broke by KeyboardInterrupt (%d)" %(self.connectionNumber)
except Exception as e:
print "\tPSS broke by some random exception or interrupt (%d)" %(self.connectionNumber)
print e
def POISocketListener(self):
try:
print "\tin POISocketListener"
while True:
data = self.clientsocket.recv(BUFFERSIZE)
if not data:
print "\n\tPSL Data empty - closing %d" %(self.connectionNumber)
break
print "PSL %d received data: \"%s\"" %(self.connectionNumber, data)
for tempData in data.split("\n"):
if tempData == "":
continue
if tempData == "close":
self.close = True
print "\tPSL exiting from stopPOI (%d)" %(self.connectionNumber)
return
if tempData == "sendPOI":
self.sendingData = True
continue
if tempData == "stopPOI":
self.sendingData = False
continue
if tempData.startswith("addOverlay:") or tempData.startswith("removeOverlay:"):
# partition returns 3-tuple (before, seperator, after)
action, sep, overlayName = tempData.partition(":")
if action.startswith("add"):
self.overlays.add(overlayName)
else:
# remove throws error if not present, discard does not
self.overlays.discard(overlayName)
# resync all points (to force new overlay points sync)
self.lastSync = -1.0
continue
if tempData.startswith("addPoint:") or tempData.startswith("removePoint:"):
# partition returns 3-tuple (before, seperator, after)
action, sep, point = tempData.partition(":")
try:
tempPOI = poi.POI(point)
if action.startswith("add"):
tempPOI.setUID(nextUIDgenerator.next())
POIelements[tempPOI.getUID()] = tempPOI
print "\tadded:", tempPOI, "as UID:", tempPOI.getUID()
else:
removed = POIelements.pop(tempPOI.getUID(), "not present")
if removed != "not present":
print "\tremoved POI with UID:", tempPOI.getUID()
else:
print "\tfailed to remove POI:", tempPOI, POIelements.keys()
except Exception as e:
print "\tPSL failed to parse data: ", e
continue
except KeyboardInterrupt:
print "\tPSL broke by KeyboardInterrupt (%d)" %(self.connectionNumber)
except Exception as e:
print "\tPSL broke by some random exception or interrupt (%d)" %(self.connectionNumber)
print e
