Hi all I have a problem with protocol buffers serialised files.
I use python for parsing buffer files. But I can't read any message from
file, I don't know why.
Writer developed on Java and use CodedInputStream and WriteMassangeNoTag
for writing buffers file.
I wont to parse this file by python. I have all .proto files compiled
successful for python. I read PB documentation and find that PB massages
must be delimited if they are located in one file.
So the questions are next:
1. What is the delimiter CodedInputStream use?
2. Can some one provide code example for python, how to read messages from
file one by one.
Code Example (Default code from PB Documentation):
JM = proto.myproto_pb2.MyProtoClass()
try:
f = open(sys.argv[1], "rb")
# text_format.Merge(f.read(), JM)
# print(f.read())
JM.ParseFromString(f.read())
f.close()
print (JM)
except IOError:
print (sys.argv[1] + ": Could not open file. Creating a new one.")
Return error:
google.protobuf.message.DecodeError: Tag had invalid wire type.
P.S. If python program write buffer file then python program can read and
parse it.
So problem happen when java write and python read.
Thanks
Mike.
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