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logger::utils

Utilities for logger






package require Tcl 8.4


package require logger::utils ?1.3.1?


::logger::utils::createFormatCmd formatString


::logger::utils::createLogProc -procName
    procName ?options...?


::logger::utils::applyAppender -appender
    appenderType ?options...?


::logger::utils::autoApplyAppender command
    command-string log op args...










This package adds template based appenders.



  
::logger::utils::createFormatCmd formatString

  
This command translates formatString into an expandable command
      string. The following strings are the known substitutions (from log4perl)
      allowed to occur in the formatString:







  
%c

  
Category of the logging event

  
%C

  
Fully qualified name of logging event

  
%d

  
Current date in yyyy/MM/dd hh:mm:ss

  
%H

  
Hostname

  
%m

  
Message to be logged

  
%M

  
Method where logging event was issued

  
%p

  
Priority of logging event

  
%P

  
Pid of current process







  
::logger::utils::createLogProc -procName procName
    ?options...?

  
This command ...







  

  
The name of the procedure to create.

  

  
See ::logger::utils::createFormatCmd for the substitutions allowed
      in the pattern.

  

  
The category (service).

  

  
The priority (level).

  

  
channel to output on (default stdout)







  
::logger::utils::applyAppender -appender appenderType
    ?options...?

  
This command will create an appender for the specified logger services. If
      no service is specified then the appender will be added as the default
      appender for the specified levels. If no levels are specified, then all
      levels are assumed.
    

  







  

  

  

  
Name of the logger instance to modify. -serviceCmd takes as input
      the return of logger::init.

  

  
Type of the appender to use. One of console,
    colorConsole.

  

  
Additional arguments to apply to the appender. The argument of the option
      is a list of options and their arguments.
    
For example

  






logger::utils::applyAppender -serviceCmd $log -appender console -appenderArgs {-conversionPattern {\[%M\] \[%p\] - %m}}






  

  
The usual Tcl quoting rules apply.





  

  
The list of levels to apply this appender to. If not specified all levels
      are assumed.






Example of usage:






   % set log [logger::init testLog]
   ::logger::tree::testLog
   % logger::utils::applyAppender -appender console -serviceCmd $log
   % ${log}::error "this is an error"
   [2005/08/22 10:14:13] [testLog] [global] [error] this is an error






  
::logger::utils::autoApplyAppender command
    command-string log op args...

  
This command is designed to be added via trace leave to calls of
      logger::init. It will look at preconfigured state (via
      ::logger::utils::applyAppender) to autocreate appenders for newly
      created logger instances. It will return its argument log.
    
Example of usage:

    

  






  logger::utils::applyAppender -appender console
  set log [logger::init applyAppender-3]
  ${log}::error "this is an error"









This document, and the package it describes, will undoubtedly
    contain bugs and other problems. Please report such in the category
    logger of the Tcllib Trackers
    [http://core.tcl.tk/tcllib/reportlist]. Please also report any ideas for
    enhancements you may have for either package and/or documentation.


When proposing code changes, please provide unified diffs,
    i.e the output of diff -u.


Note further that attachments are strongly preferred over
    inlined patches. Attachments can be made by going to the Edit form of
    the ticket immediately after its creation, and then using the left-most
    button in the secondary navigation bar.






appender, logger






Programming tools





Copyright (c) 2005 Aamer Akhter <aakhter@cisco.com>