[UIMA-282] Work well with Apache logging (Log4J)

• Type: Wish
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.1, 2.2, 2.2.1
• Fix Version/s: 2.2.2
• Component/s: Core Java Framework
• Assignee: Michael Baessler
• Reporter: Adam Holmberg
• Created: 06/Feb/07 21:40
• Updated: 04/Apr/08 15:17
• Resolved: 07/Feb/08 16:11

Description

UIMA uses the standard java.util.logging (JUL). Most of my company's code used Apache Log4J, so we have a problem merging the messages from the two logging packages. Given that UIMA is now an Apache project, I think it makes sense that it work with Apache logging.

Two options occur to me:

1. Change all the logging calls in the code (perhaps Eclipse refactoring tools can help with that). Here's some discussion on migrating: http://www.oreillynet.com/onjava/blog/2005/12/migrating_from_jdk_logging_to.html

You could convert either to Log4J ( http://logging.apache.org/log4j/docs ) or to Apache Jakarta Commons Logging ( http://jakarta.apache.org/commons/logging ), which would allow UIMA to be configured to use either JUL or Log4J.

2. Write/find a JUL Handler that re-directs to Log4J. Here's an example: http://home.gwu.edu/~amrinder/chainsawHandler/UsingChainsawWithJDKLogging.html