NAME

Log::Report::Dispatcher::Log4perl - send messages to Log::Log4perl back-end

INHERITANCE

 Log::Report::Dispatcher::Log4perl
   is a Log::Report::Dispatcher

SYNOPSIS

 dispatcher Log::Log4perl => 'logger', accept => 'NOTICE-'
   , config => "$ENV{HOME}/.log.conf"
   , to_level => [ 'ALERT-' => $ERROR ];

 # disable default dispatcher
 dispatcher close => 'logger';

 # configuration inline, not in file: adapted from the Log4perl manpage
 my $name    = 'logger';
 my $outfile = '/tmp/a.log';
 my $config  = <<__CONFIG;
 log4perl.category.$name            = INFO, Logfile
 log4perl.appender.Logfile          = Log::Log4perl::Appender::File
 log4perl.appender.Logfile.filename = $outfn
 log4perl.appender.Logfile.layout   = Log::Log4perl::Layout::PatternLayout
 log4perl.appender.Logfile.layout.ConversionPattern = %d %F{1} %L> %m
 __CONFIG

 dispatcher 'Log::Log4perl' => $name, config => \$config;

DESCRIPTION

This dispatchers produces output tot syslog, based on the Sys::Log4perl module (which will not be automatically installed for you).

The REASON for a message often uses names which are quite similar to the log-levels used by Log::Dispatch. However: they have a different approach. The REASON of Log::Report limits the responsibility of the programmer to indicate the cause of the message: whether it was able to handle a certain situation. The Log::Dispatch levels are there for the user's of the program. However: the programmer does not known anything about the application (in the general case). This is cause of much of the trickery in Perl programs.

The default translation table is list below. You can change the mapping using new(to_level). See example in SYNOPSIS.

  TRACE   => $DEBUG  ERROR   => $ERROR
  ASSERT  => $DEBUG  FAULT   => $ERROR
  INFO    => $INFO   ALERT   => $FATAL
  NOTICE  => $INFO   FAILURE => $FATAL
  WARNING => $WARN   PANIC   => $FATAL
  MISTAKE => $WARN

METHODS

Constructors

$obj->close

See Constructors in the Log::Report::Dispatcher manpage

Log::Report::Dispatcher::Log4perl->new(TYPE, NAME, OPTIONS)

The Log::Log4perl infrastructure has all information in a configuration file. In that file, you should find a category with the NAME.

 Option       --Defined in     --Default
 accept         Log::Report::Dispatcher  depend on mode
 charset        Log::Report::Dispatcher  UTF-8 or UTF-16
 config                          <required>
 format_reason  Log::Report::Dispatcher  'LOWERCASE'
 locale         Log::Report::Dispatcher  <system locale>
 mode           Log::Report::Dispatcher  'NORMAL'
 to_level                        []

. accept => REASONS

. charset => CHARSET

. config => FILENAME|SCALAR

When a SCALAR reference is passed in, that must refer to a string which contains the configuration text. Otherwise, specify an existing FILENAME.

. format_reason => 'UPPERCASE'|'LOWERCASE'|'UCFIRST'|'IGNORE'|CODE

. locale => LOCALE

. mode => 'NORMAL'|'VERBOSE'|'ASSERT'|'DEBUG'|0..3

. to_level => ARRAY-of-PAIRS

See reasonToLevel().

Accessors

$obj->appender

Returns the Log::Log4perl::Logger object which is used for logging.

$obj->isDisabled

See Accessors in the Log::Report::Dispatcher manpage

$obj->mode

See Accessors in the Log::Report::Dispatcher manpage

$obj->name

See Accessors in the Log::Report::Dispatcher manpage

$obj->needs

See Accessors in the Log::Report::Dispatcher manpage

$obj->type

See Accessors in the Log::Report::Dispatcher manpage

Logging

$obj->collectLocation

Log::Report::Dispatcher::Log4perl->collectLocation

See Logging in the Log::Report::Dispatcher manpage

$obj->collectStack([MAXDEPTH])

See Logging in the Log::Report::Dispatcher manpage

$obj->log(HASH-of-OPTIONS, REASON, MESSAGE)

See Logging in the Log::Report::Dispatcher manpage

$obj->reasonToLevel(REASON)

Returns a level which is understood by Log::Dispatch, based on a translation table. This can be changed with new(to_level).

$obj->stackTraceLine(OPTIONS)

Log::Report::Dispatcher::Log4perl->stackTraceLine(OPTIONS)

See Logging in the Log::Report::Dispatcher manpage

$obj->translate(HASH-of-OPTIONS, REASON, MESSAGE)

See Logging in the Log::Report::Dispatcher manpage

DETAILS

SEE ALSO

This module is part of Log-Report distribution version 0.19, built on November 24, 2008. Website: http://perl.overmeer.net/log-report/

LICENSE

Copyrights 2007-2008 by Mark Overmeer. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html