Copyright 1996-2003 John D. Polstra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* This product includes software developed by John D. Polstra.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
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A SplitLogger.T, or split logger, is a general-purpose device for
splitting, teeing, or filtering log messages according to their
priority levels.
INTERFACE SplitLogger;
IMPORT Logger;
TYPE
T <: Public;
Public = Logger.T OBJECT METHODS
init(child1, child2: Logger.T;
levels1 := SET OF Logger.Priority{
Logger.Priority.Emerg .. Logger.Priority.Warning};
levels2 := SET OF Logger.Priority{
Logger.Priority.Notice .. Logger.Priority.Debug}): T;
END;
Messages at priorities in levels1 are forwarded to child1. Messages
at priorities in levels2 are forwarded to child2. Either or both of
child1 and child2 may be NIL.
END SplitLogger.