Fluent API Builder Classes?

[Clay B.]

Hello,

I realized I should write a few more tests for OOZIE-2877 (Oozie Git 
Action) and figured it would be useful to use the new fluent API 
(from OOZIE-2399) for the test. Then, I saw all the builders in 
fluent-job/fluent-job-api/src/main/java/org/apache/oozie/fluentjob/api/action 
and the examples in 
examples/src/main/java/org/apache/oozie/example/fluentjob/.

I take it these are all hand-written or is there a generator one can point 
me to which can read the XSD to create the necessary action and builder? 
(I saw some generic *{Configuration,Launcher,Prepare}Converters in there 
which look like I can simply copy and modify the class names...

(An aside, what's the thought for external folks who are using custom 
actions and who want to use the fluent API is there an extension point 
for a custom bundled action?)

-Clay