[protobuf] Re: Generic Message Dispatch and Message Handler
Evan, How are you parsing arbitrary PB bytes into a Generated Message ? I am finding no class in API that can deserialize PB byte buffer into GeneratedMessage? On Oct 27, 6:27 am, Evan Jones ev...@mit.edu wrote: On Oct 26, 2010, at 15:45 , maninder batth wrote: My generic Handler would create a GeneratedMessage and look for the field messageType. Based on the value of the messageType, a particular handler will be invoked. This is basically what I have done, for my protobuf RPC implementation. If you only need to choose between a limited set of types, you may want a union type or extensions instead: http://code.google.com/apis/protocolbuffers/docs/techniques.html#union http://code.google.com/apis/protocolbuffers/docs/proto.html#extensions Evan -- Evan Joneshttp://evanjones.ca/ -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
Re: [protobuf] Re: Generic Message Dispatch and Message Handler
On Oct 27, 2010, at 11:36 , Jimm wrote: How are you parsing arbitrary PB bytes into a Generated Message ? I am finding no class in API that can deserialize PB byte buffer into GeneratedMessage? I'm using the generic Service API that is included with protocol buffers, so I'm not using GeneratedMessage. Rather, I'm using a message instance itself. The register does something ilke this: serviceRegister.registerCall(MyCustomMessage.getDefaultInstance()); Then you can parse this with code like the following: Message requestPrototype = ...; // stored in registerCall implementation Message.Builder builder = requestPrototype.newBuilderForType(); builder.mergeFrom(requestByteString); My code is actually available in the following hg repository. I don't recommend that people use it directly, since it is a bit hacky, but it could serve as an example: http://people.csail.mit.edu/evanj/hg/index.cgi/javatxn/file/tip/src/ca/evanjones/protorpc/ServiceRegistry.java http://people.csail.mit.edu/evanj/hg/index.cgi/javatxn/file/tip/src/ca/evanjones/protorpc/ProtoMethodInvoker.java Good luck, Evan -- Evan Jones http://evanjones.ca/ -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
