def post(self):
globalStop = int(self.request.get('globalStop'))
startKey = int(self.request.get('startKey'))
stopKey = int(self.request.get('stopKey'))
startCue = meTools.buildTradeCueKey(startKey)
stopCue = meTools.buildTradeCueKey(stopKey)
# get last desire for these start stop Keys
meSchema.desire.all().filter('CueKey IN', [startCue,stopCue]).filter('__key__ <', Key.from_path('desire','1000000_0000_00')).order('-__key__').get()
def doDesires(step, startKey=None, stopKey=None):
global cvalDict
if stopKey is None and startKey is None:
startKey = 1
stopKey = int(meSchema.tradeCue.all(keys_only=True).order('-__key__').get().name())
elif stopKey is None or startKey is None:
raise(BaseException('Must define both startKey and stopKey, or both must be None!'))
# Check cachepy clock and sync with memcache if necessary.
syncProcessCache(step,startKey,stopKey)
# Construct cvalDict for this step.
for stckID in [1,2,3,4]:
deltakey = str(stckID) + "_" + str(step)
cvalDict[deltakey] = calculateDeltas(stckID, step)
medesires = []
count = 0
for i in range(startKey, stopKey + 1):
cuekey = meTools.buildTradeCueKey(i)
desires = doDesire(step, cuekey)
if len(desires) != 0:
medesires.extend(desires)
meTools.batchPut(medesires)
# Remove from global cvalDict since not sure how that will act with same running process.
for stckID in [1,2,3,4]:
del cvalDict[str(stckID) + '_' + str(step)]
def syncProcessCache(step,startKey,stopKey):
clockKey = 'stepclock_' + str(startKey) + '_' + str(stopKey)
stepclock = cachepy.get(clockKey, priority=1)
memkeylist = []
if stepclock not in [step-1, step]:
for i in range(startKey,stopKey + 1):
for stckID in [1,2,3,4]:
cuekey = meTools.buildTradeCueKey(i)
recency_key = 'desire_' + cuekey + '_' + str(stckID)
memkeylist.append(recency_key)
recentDesires = memcache.get_multi(memkeylist)
cachepy.set_multi(recentDesires, priority = 1)
'''
for des in recentDesires:
cachepy.set(des, recentDesires[des], priority=1)
'''
cachepy.set(clockKey,step,priority=1) # Set cachepy clockKey to current step since synced with Memcache.
