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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: Logger.m3.html,v 1.3 2010-04-29 17:20:02 wagner Exp $
MODULE Logger;
IMPORT LoggerClass, Text;
REVEAL
T = LoggerClass.Public BRANDED OBJECT
level: Priority;
prefix := "";
counts := ARRAY Priority OF CARDINAL{0, ..};
closed := FALSE;
OVERRIDES
init := Init;
put := DefaultPut;
close := DefaultClose;
END;
LoggerClass.Private = MUTEX BRANDED OBJECT END;
PROCEDURE Init(logger: T;
level: Priority := Priority.Debug): T =
BEGIN
logger.level := level;
RETURN logger;
END Init;
PROCEDURE Put(logger: T;
priority: Priority;
msg: TEXT) =
BEGIN
LOCK logger DO
IF priority <= logger.level THEN
logger.put(priority, logger.prefix & msg);
END;
INC(logger.counts[priority]);
END;
END Put;
PROCEDURE Indent(logger: T) =
BEGIN
LOCK logger DO
logger.prefix := " " & logger.prefix;
END;
END Indent;
PROCEDURE Exdent(logger: T) =
BEGIN
LOCK logger DO
logger.prefix := Text.Sub(logger.prefix, 1);
END;
END Exdent;
PROCEDURE Count(logger: T; priority: Priority): CARDINAL =
VAR
n: CARDINAL := 0;
BEGIN
LOCK logger DO
FOR p := FIRST(Priority) TO priority DO
INC(n, logger.counts[p]);
END;
END;
RETURN n;
END Count;
PROCEDURE CountEqual(logger: T; priority: Priority): CARDINAL =
BEGIN
LOCK logger DO
RETURN logger.counts[priority];
END;
END CountEqual;
PROCEDURE Close(logger: T) =
BEGIN
LOCK logger DO
IF NOT logger.closed THEN
logger.close();
logger.closed := TRUE;
END;
END;
END Close;
PROCEDURE DefaultPut(<*UNUSED*> logger: T;
<*UNUSED*> priority: Priority;
<*UNUSED*> msg: TEXT) =
BEGIN
END DefaultPut;
PROCEDURE DefaultClose(<*UNUSED*> logger: T) =
BEGIN
END DefaultClose;
PROCEDURE Emerg(logger: T; msg: TEXT) =
BEGIN
Put(logger, Priority.Emerg, msg);
END Emerg;
PROCEDURE Alert(logger: T; msg: TEXT) =
BEGIN
Put(logger, Priority.Alert, msg);
END Alert;
PROCEDURE Crit(logger: T; msg: TEXT) =
BEGIN
Put(logger, Priority.Crit, msg);
END Crit;
PROCEDURE Err(logger: T; msg: TEXT) =
BEGIN
Put(logger, Priority.Err, msg);
END Err;
PROCEDURE Warning(logger: T; msg: TEXT) =
BEGIN
Put(logger, Priority.Warning, msg);
END Warning;
PROCEDURE Notice(logger: T; msg: TEXT) =
BEGIN
Put(logger, Priority.Notice, msg);
END Notice;
PROCEDURE Info(logger: T; msg: TEXT) =
BEGIN
Put(logger, Priority.Info, msg);
END Info;
PROCEDURE Debug(logger: T; msg: TEXT) =
BEGIN
Put(logger, Priority.Debug, msg);
END Debug;
BEGIN
END Logger.