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From Nick Bauman <nixnix...@yahoo.com>
Subject Re: Stack Traces in standalone classes
Date Sat, 08 Jul 2000 17:32:14 GMT
I've never used it but it looks like it already does
what you want.

Java Logging Toolkit

http://alphaworks.ibm.com/tech/loggingtoolkit4j

Seems pretty slick, but I imagine the license might
not fly for Apache.

Food for thought.

--- Alex Chaffee <guru@edamame.stinky.com> wrote:
> > 
> > A "non-Tomcat context" in which logging already
> causes grief is Catalina.
> > It does not utilize Tomcat's
> org.apache.tomcat.logging package itself
> > (based on philosophical reasons -- there will be
> people who want all
> > events from all components related to things like
> a particular virtual
> > host or a particular application logged to the
> same place), and has to go
> > to some pretty incredible pains to make a
> Tomcat-compatible logger
> > available for Jasper.
> > 
> 
> That's a great idea.  It should (should!) be
> possible to make a
> logging facility that works for (a) Tomcat, (b)
> Catalina, (c)
> standalone classes, that satisfies the following:
> 
> - simple API, so programmers have no excuse for not
> using it
> - predictable and consistent behavior
> - prints to a log file, or to System.err (degrades
> gracefully)
> - can defer to a superior (the point you made above)
> - can specify verbosity level 
> - expands nested exceptions 
> - "debug" messages don't take up any CPU if
> debugging is turned off
> 
> The solution I've been slowly incorporating into the
> Tomcat tree has
> most of the above; I'd love to discuss what would
> need to be done to
> make it acceptable to Catalina.  Basically, you
> instantiate a helper
> class that does all the work for you.  This would be
> a "mixin" in C++
> but with Java there's a little extra typing, e.g.:
> 
> class Foo {
>    Logger.Helper loghelper = new
> Logger.Helper("tc_log", "Foo");
>    ...
>      loghelper.log("Something happened");
>      ...
>      loghelper.log("Starting something",
> Logger.DEBUG);
>      ...
>      catch (IOException e) {
>        loghelper.log("While doing something", e);
>      }
> 
> The "degrades gracefully" aspect should (!) make it
> acceptable to
> include in classes like XmlMapper.  
> 
> I'm psyched that a common log API is in JSR
>
(http://java.sun.com/aboutJava/communityprocess/jsr/jsr_047_log.html
> )
> -- but until that materializes, we can probably make
> a usable system
> ourselves.
> 
> -- 
> Alex Chaffee                      
> mailto:alex@jguru.com
> jGuru - Java News and FAQs        
> http://www.jguru.com/alex/
> Creator of Gamelan                
> http://www.gamelan.com/
> Founder of Purple Technology      
> http://www.purpletech.com/
> Curator of Stinky Art Collective  
> http://www.stinky.com/
> 
>
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