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From Steve Loughran <ste...@apache.org>
Subject Re: Ant Logging isVerbose()?
Date Mon, 30 May 2005 20:35:08 GMT
Stefan Bodewig wrote:
> On Mon, 30 May 2005, Steve Cohen <scohen@javactivity.org> wrote:
> 
>>In log4j, commons-logging, etc.  a common pattern is
>>
>>if (isDebugEnabled()) {
>>    // some expensive string building to put message together
>>   log.debug(expensiveMessage);
>>}
>>
>>I don't see such functionality in Ant
> 
> 
> Because Ant doesn't have a way to determine isDebugEnabled().
> XmlLogger, for example, logs everything and ignores the command line
> switches.  So the only "thing" which would know it is the listeners
> themselves.
> 
> Since the listener API doesn't expose the verbosity - and changing the
> interface is no good idea either - I don't see how we could do it.

I've always wondered how much overhead the verbose/debug log info takes 
up. It would make sense to determine the cost before addressing the 
issue. And, as you say, the only solution is changing the interface (or 
cheating, using reflection on the side).

-steve

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