[prev in list] [next in list] [prev in thread] [next in thread] 

List:       log4j-dev
Subject:    [jira] Created: (LOG4J2-27) log4j 2 should implement the SLF4J API
From:       "Curt Arnold (JIRA)" <jira () apache ! org>
Date:       2008-12-04 5:26:44
Message-ID: 419858270.1228368404316.JavaMail.jira () brutus
[Download RAW message or body]

log4j 2 should implement the SLF4J API directly
-----------------------------------------------

                 Key: LOG4J2-27
                 URL: https://issues.apache.org/jira/browse/LOG4J2-27
             Project: Log4j 2
          Issue Type: Wish
          Components: API
            Reporter: Curt Arnold


A PDF version of jspwiki-log.odf will be attached to this bug.

On Dec 3, 2008, at 5:41 AM, Ceki Gulcu wrote on log4j-dev:

Hello,

As you are probably aware, more and more projects are adopting the
SLF4J API.  I would venture say that SLF4J's adoption rate is roughly
equivalent to that of log4j itself.  Although the SLF4J API is not
perfect, most SLF4J users seem to be extremely happy with it.

Harry Metske synthesized various logging paths in JSPWiki

https://issues.apache.org/jira/secure/attachment/12394188/jspwiki-log.odp

I was taken aback by the picture he paints. I think we as log4j
committers owe it to Java developers to propose a saner logging model.

Given the multiplicity of logging APIs in the Java world, I propose
that log4j implement the SLF4J API directly. This can be done in the
next version of log4j, say 1.3 or 2.0.

Unfortunately, the adoption of the SLF4J API by log4j will be break
100% compatibility with existing log4j clients. More precisely,
logging statements passing java.lang.Object as the message parameter
will need to be changed to java.lang.String. Assuming that the
proportion of logging statements using objects instead string is
extremely small, comparatively few users will be affected. More
importantly, in my experience, even very large projects can be
migrated to the SLF4J API within half an hour.

There is even a tool called slf4j-migrator to help with such
migration [1].

Is there support for my proposal?

[1] http://www.slf4j.org/migrator.html



-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: log4j-dev-unsubscribe@logging.apache.org
For additional commands, e-mail: log4j-dev-help@logging.apache.org

[prev in list] [next in list] [prev in thread] [next in thread]