log::contextual::simplelogger(3pm) [debian man page]

Log::Contextual::SimpleLogger(3pm)			User Contributed Perl Documentation			Log::Contextual::SimpleLogger(3pm)

NAME

       Log::Contextual::SimpleLogger - Super simple logger made for playing with Log::Contextual

SYNOPSIS

	use Log::Contextual::SimpleLogger;
	use Log::Contextual qw( :log ),
	  -logger => Log::Contextual::SimpleLogger->new({ levels => [qw( debug )]});

	log_info { 'program started' }; # no-op because info is not in levels
	sub foo {
	  log_debug { 'entered foo' };
	  ...
	}

DESCRIPTION

       This module is a simple logger made mostly for demonstration and initial experimentation with Log::Contextual.  We recommend you use a real
       logger instead.	For something more serious but not overly complicated, take a look at Log::Dispatchouli.

METHODS

   new
       Arguments: "Dict[
	 levels      => Optional[ArrayRef[Str]],
	 levels_upto => Level,
	 coderef     => Optional[CodeRef], ] $conf"

	my $l = Log::Contextual::SimpleLogger->new({
	  levels  => [qw( info warn )],
	  coderef => sub { print @_ }, # the default prints to STDERR
	});

       or

	my $l = Log::Contextual::SimpleLogger->new({
	  levels_upto => 'debug',
	  coderef     => sub { print @_ }, # the default prints to STDERR
	});

       Creates a new SimpleLogger object with the passed levels enabled and optionally a "CodeRef" may be passed to modify how the logs are
       output/stored.

       "levels_upto" enables all the levels upto and including the level passed.

       Levels may contain:

	trace
	debug
	info
	warn
	error
	fatal

   $level
       Arguments: @anything

       All of the following six methods work the same.	The basic pattern is:

	sub $level {
	  my $self = shift;

	  print STDERR "[$level] " . join qq{
}, @_;
	     if $self->is_$level;
	}

       trace

	$l->trace( 'entered method foo with args ' join q{,}, @args );

       debug

	$l->debug( 'entered method foo' );

       info

	$l->info( 'started process foo' );

       warn

	$l->warn( 'possible misconfiguration at line 10' );

       error

	$l->error( 'non-numeric user input!' );

       fatal

	$l->fatal( '1 is never equal to 0!' );

   is_$level
       All of the following six functions just return true if their respective level is enabled.

       is_trace

	say 'tracing' if $l->is_trace;

       is_debug

	say 'debuging' if $l->is_debug;

       is_info

	say q{info'ing} if $l->is_info;

       is_warn

	say 'warning' if $l->is_warn;

       is_error

	say 'erroring' if $l->is_error;

       is_fatal

	say q{fatal'ing} if $l->is_fatal;

AUTHOR

       See "AUTHOR" in Log::Contextual

COPYRIGHT

       See "COPYRIGHT" in Log::Contextual

LICENSE

       See "LICENSE" in Log::Contextual

perl v5.10.1							    2010-07-31					Log::Contextual::SimpleLogger(3pm)

Log::Handler::Levels(3pm)				User Contributed Perl Documentation				 Log::Handler::Levels(3pm)

NAME

       Log::Handler::Levels - All levels for Log::Handler.

DESCRIPTION

       Base class for Log::Handler.

       Just for internal usage and documentation.

METHODS

   Default log level
       debug()
       info()
       notice()
       warning(), warn()
       error(), err()
       critical(), crit()
       alert()
       emergency(), emerg()

   Checking for active levels
       is_debug()
       is_info()
       is_notice()
       is_warning(), is_warn()
       is_error(), is_err()
       is_critical(), is_crit()
       is_alert()
       is_emergency(), is_emerg()

   Special level
       fatal()
	   Alternative for the levels "critical" - "emergency".

       is_fatal()
	   Check if one of the levels "critical" - "emergency" is active.

   Special methods
       trace()
	   This method is very useful if you want to add a full backtrace to your message. Maybe you want to intercept unexpected errors and want
	   to know who called "die()".

	       $SIG{__DIE__} = sub { $log->trace(emergency => @_) };

	   By default the backtrace is logged as level "debug".

	       # would log with the level debug
	       $log->trace('who called who');

	   If you want to log with another level then you can pass the level as first argument:

	       $log->trace(info => $message);

       dump()
	   If you want to dump something then you can use "dump()".  The default level is "debug".

	       my %hash = (foo => 1, bar => 2);

	       $log->dump(\%hash);

	   If you want to log with another level then you can pass the level as first argument:

	       $log->dump($level => \%hash);

       die()
	   This method logs the message to the output and then call "Carp::croak()" with the level "emergency" by default.

	       $log->die('an emergency error here');

	   If you want to log with another level, then you can pass the level as first argument:

	       $log->die(fatal => 'an emergency error here');

       log()
	   With this method it's possible to log messages with the log level as first argument:

	       $log->log(info => 'an info message');

	   Is the same like

	       $log->info('an info message');

	   and

	       $log->log('an info message');

	   If you log without a level then the default level is "info".

PREREQUISITES

	   Carp
	   Data::Dumper

EXPORTS

       No exports.

REPORT BUGS

       Please report all bugs to <jschulz.cpan(at)bloonix.de>.

       If you send me a mail then add Log::Handler into the subject.

AUTHOR

       Jonny Schulz <jschulz.cpan(at)bloonix.de>.

COPYRIGHT

       Copyright (C) 2007-2009 by Jonny Schulz. All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-11-21						 Log::Handler::Levels(3pm)