NAME

MojoX::Log::Dispatch - Log::Dispatch For Mojo

VERSION

Version 0.05

SYNOPSIS

    use MojoX::Log::Dispatch;

    # Create a Log::Dispatch whith logging object that will log to STDERR by default or to file if exists attribute C<path>
    
    my $log = MojoX::Log::Dispatch->new();

    $log->add(Log::Dispatch::File->new(name => 'file1',
                                       min_level => $self->level,
                                       filename => 'logfile' 
                                       ));
                                              
    #Add some exotic loggers
    $log->add(Log::Dispatch::Twitter->new(  username  => "foo",
                                            password  => "bar",
                                            min_level => "critical",
                                            name      => "twitter",
                                           ));
                                              
	#and now as in Mojo::Log

    $log->debug("Why isn't this working?");
    $log->info("FYI: it happened again");
    $log->warn("This might be a problem");
    $log->error("Garden variety error");
    $log->fatal("Boom!");
    $log->emergency("Boom! Boom!");
    $log->alert("Hello!");
    $log->critical("This might be a BIG problem");
    $log->warning("This might be a problem");#=warn
    $log->notice("it happened again");
    
    #OR:
    $log->log('debug' => 'This should work');
    

DESCRIPTION

MojoX::Log::Dispatch wrapper around Log::Dispatch module. Log::Dispatch manages a set of Log::Dispatch::* objects, allowing you to add and remove output objects as desired.

Include log statements at various levels throughout your code. Then when you create the new logging object, set the minimum log level you want to keep track off. Set it low, to 'debug' for development, then higher in production.

ATTRIBUTES

handle

 my $handle = $log->handle;

Returns a Log::Dispatch object for logging if called without arguments. Returns the invocant if called with arguments.

level

my $level = $log->level;
$log      = $log->level('debug');

Returns the minimum logging level if called without arguments. Returns the invocant if called with arguments. Valid value are: debug, info, warn, error and fatal.

callbacks

    $log->callbacks( callbacks( \& or [ \&, \&, ... ] ) );
	See  Log::Dispatch->new for details
	

remove_default_log_obj

	default 1	
	
    $log->remove_default_log_obj;
	
	If true remove default log objects when C<add> new Log::Dispatch::* object	

METHODS

new

Returns a new MojoX::Log::Dispatch object. This method takes one optional parameter (for Log::Dispatch->new):

add

add( Log::Dispatch::* OBJECT )

example:

$log->add(Log::Dispatch::Syslog->new( name => 'mysyslog1', min_level => 'info', facility => 'local0' ));

Adds a new a Log::Dispatch::* object to the dispatcher. If an object of the same name already exists, then that object is replaced. A warning will be issued if the $^W is true.

NOTE: This method can really take any object that has methods called 'name' and 'log'.

log

Like in C<Mojo::Log> (not as Log::Dispatch)

$log = $log->log(log_level_name => $ or & )

EXAMPLE

$log = $log->log('debug' => 'This should work');
$log = $log->log('alert' => 'hello');

OR

$log = $log->log('critical' => \&);

Sends the message (at the appropriate level) to all the Log::Dispatch::* objects that the dispatcher contains (by calling the log_to method repeatedly).

This method also accepts a subroutine reference as the message argument. This reference will be called only if there is an output that will accept a message of the specified level.

log_to

log_to( name => $, level => $, message => $ )

Sends the message only to the named object.

would_log

would_log( $string )

Given a log level, returns true or false to indicate whether or not anything would be logged for that log level.

level_is_valid

level_is_valid( $string )

Returns true or false to indicate whether or not the given string is a valid log level. Can be called as either a class or object method.

remove

remove('logname')

Removes the object that matches the name given to the remove method. The return value is the object being removed or undef if no object matched this.

log_and_die

log_and_die( level => $, message => $ or \& ) Has the same behavior as calling log() but calls _die_with_message() at the end.

log_and_croak

log_and_croak( level => $, message => $ or \& )

This method adjusts the $Carp::CarpLevel scalar so that the croak comes from the context in which it is called.

_die_with_message

_die_with_message( message => $, carp_level => $ )

This method is used by log_and_die and will either die() or croak() depending on the value of message: if it's a reference or it ends with a new line then a plain die will be used, otherwise it will croak.

You can throw exception objects by subclassing this method.

If the carp_level parameter is present its value will be added to the current value of $Carp::CarpLevel.

output

output( $name )

Returns an output of the given name. Returns undef or an empty list, depending on context, if the given output does not exist.

dispatcher

Returns a Log::Dispatch object

MojoX::Log::Dispatch inherits all methods from Mojo::Log and implements the following new ones.

debug

$log = $log->debug('You screwed up, but thats ok');

error

$log = $log->error('You really screwed up this time');

err

$log = $log->err('You really screwed up this time');

fatal

$log = $log->fatal('Its over...');

info

$log = $log->info('You are bad, but you prolly know already');

warn

   $log = $log->warn('Dont do that Dave...');

emergency

   $log = $log->emergency("Boom! Boom!");;

emerg

   $log = $log->emerg("Boom! Boom!");;

alert

   $log = $log->alert("Hello!");;

critical

   $log = $log->critical("This might be a BIG problem");

crit

   $log = $log->crit("This might be a BIG problem");

warning

   $log = $log->warning("This might be a problem");

warn

   $log = $log->warn("This might be a problem");

 

notice

   $log = $log->notice('it happened again');

is_level

my $is = $log->is_level('debug');

Returns true if the current logging level is at or above this level.

is_debug

my $is = $log->is_debug;

Returns true if the current logging level is at or above this level.

is_error

my $is = $log->is_error;

Returns true if the current logging level is at or above this level.

is_fatal

my $is = $log->is_fatal;

Returns true if the current logging level is at or above this level.

is_info

my $is = $log->is_info;

Returns true if the current logging level is at or above this level.

is_notice

my $is = $log->is_notice;

Returns true if the current logging level is at or above this level.

is_warn

my $is = $log->is_warn;

Returns true if the current logging level is at or above this level.

is_emergency

my $is = $log->is_emergency;

Returns true if the current logging level is at or above this level.

is_emerg

my $is = $log->is_emerg;

Returns true if the current logging level is at or above this level.

is_alert

my $is = $log->is_alert;

Returns true if the current logging level is at or above this level.

is_critical

my $is = $log->is_critical;

Returns true if the current logging level is at or above this level.

is_warning

my $is = $log->is_warning;

Returns true if the current logging level is at or above this level.

is_err

my $is = $log->is_err;

Returns true if the current logging level is at or above this level.

is_crit

my $is = $log->is_crit;

Returns true if the current logging level is at or above this level.

is_emerg

my $is = $log->is_emerg;

Returns true if the current logging level is at or above this level.

Log Levels

The log levels that Log::Dispatch (and MojoX::Log::Dispatch) uses are taken directly from the syslog man pages (except that I expanded them to full words). Valid levels are:

debug
info
notice
warning (=warn for Mojo::Log compatibility )
error
critical
alert
emergency (=fatal for Mojo::Log compatibility )

The syslog standard of 'err', 'crit', and 'emerg' is also acceptable.

See Also

Log::Dispatch Log::Dispatch::ApacheLog, Log::Dispatch::Email, Log::Dispatch::Email::MailSend, Log::Dispatch::Email::MailSender, Log::Dispatch::Email::MailSendmail, Log::Dispatch::Email::MIMELite, Log::Dispatch::File, Log::Dispatch::File::Locked, Log::Dispatch::Handle, Log::Dispatch::Output, Log::Dispatch::Screen, Log::Dispatch::Syslog

and more othe Log::Dispatch::* modules http://search.cpan.org/search?m=dist&q=Log%3A%3ADispatch

AUTHOR

Konstantin Kapitanov, <perlovik at gmail.com>

BUGS

Please report any bugs or feature requests to bug-mojox-log-dispatch at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MojoX-Log-Dispatch. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc MojoX::Log::Dispatch

You can also look for information at:

ACKNOWLEDGEMENTS

COPYRIGHT & LICENSE

Copyright 2009 Konstantin Kapitanov, all rights reserved.

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