Re: [log4perl-devel] Re: logdie / logcroak

[Erik W. S. <er...@se...>]

Kevin Goess wrote:

>We should also keep the details of the level constants private.  Someday
>I'd like to allow users to create their own levels (log4j does it with
>subclassing), so it would help to keep as many of the details hidden
>(therefore changeable) as possible, the user shouldn't count on anything
>more detailed than 
>	DEBUG < INFO < WARN < ERROR < FATAL. 
>
>  
>
So, thinking some more on this...

1) To an extent, the cat's out of the bag. Log4j makes the (constant) 
integer representations of the above public, which means it's a BIG DEAL 
(tm) to change ERROR => 3 to say ERROR => 1, and has a toLevel() method 
which takes an int. We've done the same with Log4perl. So I'm not 
convinced we need to move towards hiding the fact that levels are just 
ints, and just give people a total order on a quasi-enumerated type.

2) It seems that it'd be super straightforward to add some code to 
Level.pm to enable the insertion of a Level whereever --- and since Perl 
lets us play fast & loose with numbers, we could just create something 
like "MOREINFO" with a value of 6.5 and $logger->log(6.5, "You want it, 
you got it") would work. Although I'm pretty sure that this would have 
to be done within a Perl program --- not clear if an external config 
would work though.

Thoughts?
-e