This is a tutorial?

[aliteralmind]

I don't understand how to get started with this. My first impression is that it's just a large project, with no clear place where to start. ElasticSearchPart1Test?

A tutorial almost by definition should be self-contained, not spanning multiple files. Something I can simply copy-paste, configure, and run.

It seems like you've put a lot of work into this. Please clarify how I should best be getting something out of it.