Hey Tony, I accidentally rejected your message to the Druid dev list about writing a custom parser, by fat-fingering the item in the moderation queue. Sorry about that!
You had asked about being pointed in a useful direction in terms of writing a custom parser for a proprietary data format. You might find https://github.com/implydata/druid-example-extension a useful example. It is written against an older version of Druid but the same basic structure should work on the latest version. If that doesn't help enough, please feel free to write back! By the way, if you join the dev list (email dev-subscr...@druid.apache.org) then your messages will go through without the need for moderation. Gian