Hi Adam, We are using picojson <https://github.com/kazuho/picojson> to parse the JSON file.
After more debugging, I think I have found the root cause: In the code here <https://github.com/apache/mesos/blob/1.2.0/3rdparty/stout/include/stout/protobuf.hpp#L575>, we are trying to find a field by the key of an entry in a map, obviously it will fail since the key of any map entries is not in the protobuf message definition (the .proto file), and to avoid finding field by a map entry's key, in this method <https://github.com/apache/mesos/blob/1.2.0/3rdparty/stout/include/stout/protobuf.hpp#L387:L407>, we need to check if "field->is_map()" is true which is currently missed, if the field is a map, then we should use the reflection to construct a map message, however I do not find a method in protobuf to do that, I find a lot of "Addxxx()" methods (e.g., "AddString()", "AddInt64()", etc.), but not a method for adding a map. There is a method "InsertOrLookupMapValue()", but that is a private method which I can not call in my code. So can you please suggest how to add a map message? Thanks! Regards, Qian Zhang On Sat, Jun 3, 2017 at 1:02 AM, Adam Cozzette <[email protected]> wrote: > It looks to me like your JSON syntax is right. Could you post the C++ code > you are using to parse the JSON file? > > On Fri, Jun 2, 2017 at 1:16 AM, Qian Zhang <[email protected]> wrote: > >> Hi, >> >> I have a C++ project in which there is a .proto file, and in that file, >> there is protobuf message which has a map field: >> "map<string, string> annotations = 5;" >> >> And the JSON file to be parsed with that .proto file has the following >> content: >> "annotations": { >> "com.example.key1": "value1", >> "com.example.key2": "value2" >> } >> >> The .proto file is in proto2 syntax (it has "syntax = "proto2";" at the >> beginning) and I am using protobuf-3.3.0, the compilation succeed, but I >> found the annotation map always has only one entry, and both the entry's >> key and value are "" which is obviously not correct. >> >> Any suggestions? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Protocol Buffers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/protobuf. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/protobuf. For more options, visit https://groups.google.com/d/optout.
