from . import messages_pb2 as proto

map_type_to_class = {}

map_class_to_type = {}

def build_map():

for msg_type, i in proto.MessageType.items():

msg_name = msg_type.replace('MessageType_', '')

msg_class = getattr(proto, msg_name)

map_type_to_class[i] = msg_class

map_class_to_type[msg_class] = i

def get_type(msg):

return map_class_to_type[msg.__class__]

def get_class(t):

return map_type_to_class[t]

def check_missing():

from google.protobuf import reflection

types = [getattr(proto, item) for item in dir(proto)

if issubclass(getattr(proto, item).__class__, reflection.GeneratedProtocolMessageType)]

missing = list(set(types) - set(map_type_to_class.values()))

if len(missing):

raise Exception("Following protobuf messages are not defined in mapping: %s" % missing)

build_map()

check_missing()