Controller Service vs Processor Properties

[Andrew Hulbert]

Hi,

I was attempted to add web proxy support to the GetHttp and PostHttp 
processors. Do you think its best to add a ControllerService similar to 
the SSLContextService or just make two properties on each processor 
named "proxyHost" and "proxyPort"

Here's the controller service version I was thinking about but it seems 
like overkill...not sure what the bar was for services.

https://github.com/jahhulbert-ccri/incubator-nifi/tree/http_proxy

It's also going to be super-fun to test proxy support.

Thanks,

Andrew