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From: Nick Williams <nicholas@nicholaswilliams.net>
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Subject: Log4j 2 Taglib
Date: Sun, 24 Mar 2013 22:54:54 -0500
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First, and introduction, since I'm new to this list:

My name is Nick Williams, I'm a Software Engineer with UL (Underwriters' =
Laboratories) and an active member of the Open Source community. I've =
contributed to the Tomcat Project (most recently quite a bit, I've =
helped with the WebSockets implementation in Tomcat [1], though only has =
a contributor, not a committer) and worked on various other projects. =
Currently, I'm working on an improvement on Spring Security's Session =
Fixation Protection [2] and a new FasterXML (Mapping Jackson) module to =
support JSR310 (Java 8 Date & Time API) data types. I'm also author of =
the upcoming Wrox book Professional Java for Web Applications [3, the =
first public listing of the book I've seen online yet]. Now, with that =
said...

The Jakarta Taglibs project used to have a logging tag library [4], but =
that project was retired years ago. SLF4J has a tag library sub-project =
[5], but it (obviously) uses the SLF4J API. It would be nice if the new =
Log4j 2 project had a tag library available when it releases (hopefully) =
later this year.

The tag library is a very simple module. Eight or nine classes and a TLD =
are all that are needed. Jakarta Log Taglib and SLF4J Taglib (both =
Apache 2.0) have already done much of the hard work for us. I would be =
more than happy to spearhead the development effort to get this done. =
So, questions:

1) Is there interest in having this Log4j 2 module? I think it would be =
a great addition to the project.
2) What steps do I need to take? I'm used to submitted patches for =
Tomcat, but that could be very challenging for an entire module of the =
project (as small as that module might be). Still, it's doable.
3) I see no reason not to re-use viable code in Jakarta/SLF4J. In all my =
years working in Open Source, I've never actually ported/forked code =
like this. What are the "best practices," so not as to "steal" or =
offend?

Thoughts?

[1] =
http://svn.apache.org/repos/asf/tomcat/trunk/webapps/docs/changelog.xml
[2] https://jira.springsource.org/browse/SEC-2135
[3] http://109.107.134.101/wbook/bookdet.php?seq=3D840283
[4] http://jakarta.apache.org/taglibs/log/
[5] http://www.slf4j.org/taglib/=

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<html><head></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space; =
"><div>First, and introduction, since I'm new to this =
list:</div><div><br></div><div>My name is Nick Williams, I'm a Software =
Engineer with UL (Underwriters' Laboratories) and an active member of =
the Open Source community. I've contributed to the Tomcat Project (most =
recently quite a bit, I've helped with the WebSockets implementation in =
Tomcat [1], though only has a contributor, not a committer) and worked =
on various other projects. Currently, I'm working on an improvement on =
Spring Security's Session Fixation Protection [2] and a new FasterXML =
(Mapping Jackson) module to support JSR310 (Java 8 Date &amp; Time API) =
data types. I'm also author of the upcoming Wrox book Professional Java =
for Web Applications [3, the first public listing of the book I've seen =
online yet]. Now, with that said...</div><div><br></div>The Jakarta =
Taglibs project used to have a logging tag library [4], but that project =
was retired years ago. SLF4J has a tag library sub-project [5], but it =
(obviously) uses the SLF4J API. It would be nice if the new Log4j 2 =
project had a tag library available when it releases (hopefully) later =
this year.<div><br></div><div>The tag library is a very simple module. =
Eight or nine classes and a TLD are all that are needed. Jakarta Log =
Taglib and SLF4J Taglib (both Apache 2.0) have already done much of the =
hard work for us. I would be more than happy to spearhead the =
development effort to get this done. So, =
questions:</div><div><br></div><div>1) Is there interest in having this =
Log4j 2 module? I think it would be a great addition to the =
project.</div><div>2) What steps do I need to take? I'm used to =
submitted patches for Tomcat, but that could be very challenging for an =
entire module of the project (as small as that module might be). Still, =
it's doable.</div><div>3) I see no reason not to re-use viable code in =
Jakarta/SLF4J. In all my years working in Open Source, I've never =
actually ported/forked code like this. What are the "best practices," so =
not as to "steal" or =
offend?</div><div><br></div><div>Thoughts?<br><div><br></div><div>[1]&nbsp=
;<a =
href=3D"http://svn.apache.org/repos/asf/tomcat/trunk/webapps/docs/changelo=
g.xml">http://svn.apache.org/repos/asf/tomcat/trunk/webapps/docs/changelog=
.xml</a></div><div>[2]&nbsp;<a =
href=3D"https://jira.springsource.org/browse/SEC-2135">https://jira.spring=
source.org/browse/SEC-2135</a></div><div>[3]&nbsp;<a =
href=3D"http://109.107.134.101/wbook/bookdet.php?seq=3D840283">http://109.=
107.134.101/wbook/bookdet.php?seq=3D840283</a></div><div>[4]&nbsp;<a =
href=3D"http://jakarta.apache.org/taglibs/log/">http://jakarta.apache.org/=
taglibs/log/</a></div><div>[5]&nbsp;<a =
href=3D"http://www.slf4j.org/taglib/">http://www.slf4j.org/taglib/</a></di=
v></div></body></html>=

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