Hi, Opinions on how to handle logging in Tika? This question can be split in three parts:
1) Logging in tika-core. Currently only the MimeTypesReader class contains logging statements (commons-logging) in tika-core. It would be feasible to even avoid all logging in tika-core. 2) Logging in tika-parsers. This is the trickiest part as different parser libraries have different logging dependencies. I'm inclined to push the problem to downstream projects like tika-app and leave the logging dependencies as-is in tika-parsers. To keep things simple I'd like to avoid any logging by the Parser adapter classes. 3) Logging in tika-app. A good question. As a standalone runnable jar application I'd simply force all logging through something like log4j and even handle all logging configuration through simple command line arguments (--verbose, --debug) to TikaCLI. However, since tika-app is now also an OSGi bundle, we might look at using things like the OSGi log service. Not sure how well these two approaches work together, so perhaps we should rather create a separate tika-osgi bundle for that? BR, Jukka Zitting
