Custom level question

[Steve Pruitt <SP...@exstream.com>]

All,

I am adding a custom level for my application.  The level name is
SESSION and it has a severity level between INFO and WARN.
Documentation says each level must have a unique integer value.  I'm not
sure how to define the value for my level.  Looks like it could either
be INFO + 1 or WARN - 1.  But, I am a little confused.  If the existing
levels are in simple order, doesn't INFO + 1 = WARN and wouldn't it
violate the uniqueness rule.  Or, is there some progression used to
separate the builtin level values to make room for custom levels.  Or,
do I completely misunderstand how the builtin levels are implemented?


-S

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Re: Custom level question

[Curt Arnold <ca...@apache.org>]

On Aug 2, 2005, at 3:33 PM, Steve Pruitt wrote:

> All,
>
> I am adding a custom level for my application.  The level name is
> SESSION and it has a severity level between INFO and WARN.
> Documentation says each level must have a unique integer value.   
> I'm not
> sure how to define the value for my level.  Looks like it could either
> be INFO + 1 or WARN - 1.  But, I am a little confused.  If the  
> existing
> levels are in simple order, doesn't INFO + 1 = WARN and wouldn't it
> violate the uniqueness rule.  Or, is there some progression used to
> separate the builtin level values to make room for custom levels.  Or,
> do I completely misunderstand how the builtin levels are implemented?
>

Are you very sure that you want to do this as a Level?  From the name  
it seems like your "Level" is more likely a class of information (or  
less likely the intended audience) instead of the significance of the  
message.  Would definitely be simpler to use distinct loggers or  
distinct logger hierarchy for the "session" information instead of  
trying to add a new level.

I think level is wrong way to go, but I'd still like to make it  
possible to introduce new levels without having to add code.   Almost  
all the internal stuff is based on the integer value, the most  
significant role for the Level class is to implement the conversion  
between integer values and a labels.  It would be nice have some  
generic code so that if you wanted, you could have 9999 levels  
between INFO and WARN, but by default they'd be rendered as INFO+1000  
or the like.


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