Re: [Cdk-devel] Log4J

[Christoph S. <ste...@ic...>]

Egon Willighagen wrote:
> 
> Hi all,
> 
> there was been some discussion on Log4J in the past (a year ago?),
> and i've implemented use of Log4J in JChemPaint-CDK.
> 
> It is easy to implement, is very configurable and basically works
> great. Some features:
> 
> - logging of time per log line -> we can do performance tests more easily
> - log lines have a LEVEL (as in syslog): ERROR, INFO, WARN, DEBUG etc
> - logging to file or stdout
> 
> I want to propose to use it in the CDK libs as well. But in such a way
> that if the log4j jars are missing, no harm is done. (For the low profile
> implementations using cdk, jcp-applet etc).
> 
> Proposal: CDKLogger.java
>   logs to /dev/null       if log4j.jar is not in classpath
>   logs to logj4           if log4j.jar is in classpath
> 
> Comments, ideas?

Sorry for the late reply. Mail was broken.

I have tried log4j for my CASE* programs where optimum performance is
essential and was not sure whether the slowdown due to logging was
acceptable, but in the case of JCP-CDK that should not be a problem. 
The CDKLogger wrapper is a good idea.

Cheers, 

Chris


* Computer Assisted Structure Elucidation
--
Dr. Christoph Steinbeck (http://www.ice.mpg.de/departments/ChemInf)
MPI of Chemical Ecology, Carl-Zeiss-Promenade 10, 07745 Jena, Germany
Tel: +49(0)3641 643644 - Fax: +49(0)3641 643665

What is man but that lofty spirit - that sense of enterprise. 
... Kirk, "I, Mudd," stardate 4513.3..