Tracking file stat using log analytics

Hello,
I need some help in the configuration of the log analytics.
I’ve set-up the log-analytics as indicated in the web site.
My service, is a restful web service providding direct access to a list of files (xml, json, csv).

Looking at the apache access log I can see the direct access to these files,but I cannot see them in the piwik frontend.

Is there something to configure to see all the files related stat?

Thank you in advance.

Does anyone have information on this topic??