def GET(self):
key = self.arguments[0]
try:
value, expire = getattr(self.datastore, key)
if expire is not None and expire <= int(time.time()):
self.DEL(key)
raise Exception
else:
return (0, serialize_bulk_string('{}'.format(value)))
except:
return (0, serialize_bulk_string(None))
def SPOP(self):
key = self.arguments[0]
array = getattr(self.datastore, key, None)
if array is None:
return (0, serialize_bulk_string(None))
try:
result = array.pop()
except KeyError:
return (0, serialize_bulk_string(None))
setattr(self.datastore, key, array)
return (0, serialize_bulk_string(result))
def RPOP(self):
key = self.arguments[0]
array = getattr(self.datastore, key, list())
try:
result = array.pop()
except IndexError:
result = None
return (0, serialize_bulk_string(result))
def ZRANK(self):
key = self.arguments[0]
member = self.arguments[1]
array = getattr(self.datastore, key, list())
if not [
position
for position, value in enumerate(array) if value[1] == member
]:
return (0, serialize_bulk_string(None))
else:
return (0,
serialize_integer('{}'.format([
position for position, value in enumerate(array)
if value[1] == member
][0])))
def ECHO(self):
return (0,
serialize_bulk_string('{}'.format(' '.join(self.arguments))))