Hi everyone!
I have a very general question about logging in Java -- I appreciate this being
a logback-related list, but I assumed people with lots of experience in this
domain would be able to give me the good advice I need :-)
I want to include logging in the framework I'm creating -- this include several
different modules that share centralized services like authentication,
configuration, and, soon, logging.
I've tried using log4j, but it didn't really fit my purpose, or rather I
couldn't make it fit my purpose -- unresolved bugs and stuff. Be it as it may,
I think I have to move on to a new library, only I'm wondering which one I
should use. Perhaps someone can help me decide?
My goal is to have logs written in an abstract, language-independent way
(level, timestamp, message ID and name/value parameter pairs), so they can be
displayed e.g. in different languages (e.g. in a web interface). For this, I
want to use XML as the basis format for the logs. Ideally, logs should be
rotated, with each finished file being a valid XML document by itself (i.e.
with wrapping tag, would've worked in log4j if the writeFooter() method had
been called in FileAppender.closeFile() ). It is quite clear to me that the
current log file will probably *not* be a proper XML document (no end tag), but
I'll take care of that later. I might also consider being happy with having
invalid XML log files (no wrapping tag) and including them in a wrapper file
using a SYSTEM entity. I'll see.
Also ideally, if possible, I'd like to have a system that allows setting the
log level on a medium basis -- i.e. have the very same message, from the very
same logger, be logged only on channels for which the log level is enabled. For
instance, I'd like to be able to use a single logger (in the log4j sense) with
one console channel and one file channel, and have the file channel record all
levels (debug - error) while the console displays only e.g. info to error.
AFAIK this wasn't possible with log4j, as the logging level was defined for
each logger, and the logger itself decided for all appenders whether a message
should be logged or not.
I don't mind expanding a bit on an existing library, but I'd like most of the
functionality I've just described to be readily available or at least foreseen.
Does anyone have a good idea?
Thanks a lot in advance!
Pagod
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