On Nov 8, 2009, at 2:18 PM, Pat Farrell wrote:
Curt Arnold wrote:
Unfortunately, log4j 1.2 was designed in a era where concurrency
was not
as significant a concern.
As was typical of Java at the time.
The times have changed.
There has been a desire, but no active development, for a log4j 2.0
that
was designed for concurrency, JDK 5 and the all good things while
having
a simple migration path for log4j 1.2 users. However, there has
never
been the critical mass of developers ready at the same time to make
a go
at it.
How far did this effort go? How close are/were you to the critical
mass.
I'm very interested in this, and if its close, might be able to help.
--
Pat Farrell
http://www.pfarrell.com/
There is a bug repo for log4j 2.0 that collects design goals, wish
lists, ideas for log4j 2.0 at https://issues.apache.org/jira/browse/LOG4J2
Code-wise, I did some exploratory stuff several years ago around the
back-end classes at http://svn.apache.org/repos/asf/logging/sandbox/experimental/pattern-layout
. The big ideas were to have an extract phase that collected
invariant values from the logging context (that much had to be
synchronized) and logging call and then everything else worked off the
collected values and that the same back-end classes (appenders,
layout, etc) should be independent from the logging API
(java.util.logging, org.apache.log4j, etc).
Community wise, about a year ago we added an authorization class for
log4j 2.0 development (no rights on 1.2 code base) and granted it to
an existing ASF committer (Ralph Goers) who was interested in pitching
in.
There is a bit of a chicken and egg syndrome at work. I didn't
proceed to flesh out a log4j 2.0 framework back in the day since
without a community to review as it was being developed, it would be
just one guys take on the problem. However without at least a
skeletal code base, it is hard for somebody to jump in and help out.
The mailing list archive has a lot of discussion on what log4j 2.0
should look like if you up for mailing list archaeology.
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