def unparse(parsed, template=mastercard, encoding=None):
parsed = parsed.copy()
output = b""
version = getVersion(parsed["MTI"])
if version == IsoVersion._1993:
parsed.update(breakPdsElement(parsed["PDS"]))
elementIds = sorted(key for key in set(parsed) if "DE" in key)
index = bisectLeft(elementIds, "DE065")
finalIndex = bisectLeft(elementIds, "DE129")
if finalIndex > index and "DE001" not in elementIds:
insort(elementIds, "DE001")
index += 1
finalIndex += 1
BMP = elementIds[:index]
BMS = elementIds[index:finalIndex]
output += unparseElement(parsed,
elementId="MTI",
template=template[version],
encoding=encoding)
output += unparseBitmap(BMP, elementId="DE000", template=template[version])
for id in elementIds:
if isBitmap(id):
output += unparseBitmap(BMS,
elementId=id,
template=template[version])
continue
output += unparseElement(parsed,
elementId=id,
template=template[version],
encoding=encoding)
return output
def removeMachine(self, machineIndex):
if machineIndex not in self.machines:
return 0
machine = self.machines[machineIndex]
machineKeyHash = machine['hash']
del self.machines[machineIndex]
machinesHash = [machine['hash'] for machine in self.machineTuples]
newMachineIndex = bisectLeft(machinesHash, machineKeyHash)
del self.machineTuples[newMachineIndex]
for replica in self.replicas[machineIndex]:
machineKeyHash = replica['hash']
machinesHash = [machine['hash'] for machine in self.machineTuples]
newMachineIndex = bisectLeft(machinesHash, machineKeyHash)
del self.machineTuples[newMachineIndex]
del self.replicas[machineIndex]
return 1
def getMachine(self, key):
if len(self.machineTuples) == 0:
return -1
keyHash = self._getHash(key)
machineIndex = 0
if keyHash < self.machineTuples[-1]['hash']:
machinesHash = [machine['hash'] for machine in self.machineTuples]
machineIndex = bisectLeft(machinesHash, keyHash)
self.addObjectToMachine(key, self.machineTuples[machineIndex]['index'])
return self.machineTuples[machineIndex]['index']
def getMachine(self,key): if len(self.machineTuples) == 0: return -1 keyHash = self._getHash(key) machineIndex = 0 if keyHash < self.machineTuples[-1]['hash']: machinesHash = [machine['hash'] for machine in self.machineTuples] machineIndex = bisectLeft(machinesHash,keyHash) self.addObjectToMachine(key,self.machineTuples[machineIndex]['index']) return self.machineTuples[machineIndex]['index']
def removeMachine(self,machineIndex): if machineIndex not in self.machines: return 0 machine = self.machines[machineIndex] machineKeyHash = machine['hash'] del self.machines[machineIndex] machinesHash = [machine['hash'] for machine in self.machineTuples] newMachineIndex = bisectLeft(machinesHash,machineKeyHash) del self.machineTuples[newMachineIndex] for replica in self.replicas[machineIndex]: machineKeyHash = replica['hash'] machinesHash = [machine['hash'] for machine in self.machineTuples] newMachineIndex = bisectLeft(machinesHash,machineKeyHash) del self.machineTuples[newMachineIndex] del self.replicas[machineIndex] return 1
def remapObjectsOnMachineInsert(hashRing,machineIndex): hashRing.printMachines() machineKeyHash = hashRing.machines[machineIndex]['hash'] machinesHash = [machine['hash'] for machine in hashRing.machineTuples] prevMachineIndex = bisectLeft(machinesHash,machineKeyHash) + 1 if prevMachineIndex >= len(hashRing.machineTuples): prevMachineIndex = 0 prevMachineIndex = hashRing.machineTuples[prevMachineIndex]['index'] if prevMachineIndex in hashRing.objects: for key in list(hashRing.objects[prevMachineIndex]): if objects[key].hash < machineKeyHash: hashRing.removeObjectFromMachine(key,prevMachineIndex) hashRing.addObjectToMachine(key,machineIndex) print "Key: %s moved from %s to machine %s"%(key,prevMachineIndex,machineIndex) objects[key].updateMachine(machineIndex)
def remapObjectsOnMachineInsert(hashRing, machineIndex):
hashRing.printMachines()
machineKeyHash = hashRing.machines[machineIndex]['hash']
machinesHash = [machine['hash'] for machine in hashRing.machineTuples]
prevMachineIndex = bisectLeft(machinesHash, machineKeyHash) + 1
if prevMachineIndex >= len(hashRing.machineTuples):
prevMachineIndex = 0
prevMachineIndex = hashRing.machineTuples[prevMachineIndex]['index']
if prevMachineIndex in hashRing.objects:
for key in list(hashRing.objects[prevMachineIndex]):
if objects[key].hash < machineKeyHash:
hashRing.removeObjectFromMachine(key, prevMachineIndex)
hashRing.addObjectToMachine(key, machineIndex)
print "Key: %s moved from %s to machine %s" % (
key, prevMachineIndex, machineIndex)
objects[key].updateMachine(machineIndex)
