Add logging about openscoring HOT 2 CLOSED

This issue has two parts. First, the JPMML-Evaluator library should do the low-level logging (eg. what are the input field values, interim results, the target/output field values). Second, the Openscoring web service, should do high-level logging (e.g. related to HTTP traffic, maximal diagnostics of failed requests).

In you case, if a request fails, you should have caught an instance of org.jpmml.manager.PMMLException of some kind. Even though they almost always contain a null message, they should be still informative enough to pinpoint the problematic PMML content (using a combination of SAX Locator information, plus the line of the Java source code where this exception was thrown).

Unfortunately, given the limited development resources, logging falls behind other much more pressing issues. It would be possible to make exception messages more informative, though.

from openscoring.

Ahh, I did miss that the exceptions contain more information than I first thought.

My company is currently evaluating OpenScoring for a project, so hopefully we might be able to throw some man power behind building out the logging capabilities. I thought I'd start by opening this issue to get your view on things and try and organise how best to proceed.

from openscoring.