Lightening talk on Eurucamp 2015, about how I added jruby support for the google protocol buffers project.

1. Protocol buffers on
JRuby
@isaiah_peng

2. What is protocol buffers
• Protocol buffers are Google's language-neutral, platform-
neutral, extensible mechanism for serializing structured
data – **think XML, but smaller, faster, and simpler**.
message Person {
optional int32 id = 1;
optional string name = 2;
repeated string email = 3;
}

3. Advantages over JSON
• Less Boilerplate code
• Easy Language Interoperability
• Faster (de)serialisation

4. Ruby native extension
performance (red-black tree)

5. What I did
• Porting C glue code to Java, guided by the existing
specs.
• C: https://github.com/google/upb
• Java: Protobuf Java reflection API
(DynamicMessage)

6. Native extension docs
• https://raw.githubusercontent.com/ruby/ruby/trunk/R
EADME.EXT
• JRuby source as document ™

7. Happy hacking