NAME

Log::FileSimple - A simple tool to write messages and objects dump to log file.

SYNOPSIS

  use Log::FileSimple;
  
  my $log = new Log::FileSimple(  name      => 'Log::FileSimple logs',
                                  file      => './log.log',
                                  mask      => -1,
                                  autoflush => 0,
                              );
  my $message;
  
  $message    = 'Simple log message';
  $log->log(  message => $message);

  $message    = 'Another printed message';
  $log->log(  message => $message, id => 0b1);
  
  $log->mask(0b10); # changing mask filter
  
  $message    = 'This will not be printed owing to mask';
  $log->log(  message => $message, id => 0b1);
  
  $message    = 'This will be printed';
  $log->log(  message => $message, id => 0b10);
  
  $log->mask(0xFFFF); # enabling all messages log
  
  $message    = 'This is a dump of myself';
  $log->log(  message => $message, objects => [$log]);
  
  $message    = 'This is a dump of two structures';
  $log->log(  message => $message, 
              objects => [ 
                            {a => 1, b => 2},
                            ['one', 'two', 'three']
                ]
            );

DESCRIPTION

The purpose of this module is to give a simple tool to write messages to a log file.

It gives also the possibility to filter what to print and what not to print using a filter mask. If the id of the message and-ed with the mask is zero then log will be rejected otherwise not.

It's also possible to add a list of objects that will be dumped in log using Data::Dumper module.

Every log have this format:

  =================================================================
  [Timestamp] => $self->{name}
  $self->{message}
  ...dumping of objects...
  =================================================================

CLASS INTERFACE

CONSTRUCTORS

The new constructor return an istance of Log::FileSimple object. It has three parameters which you can set here:

  $log = new Log::FileSimple(  
                               name    => $name,
                               [ file      => $file ],
                               [ mask      => $mask ],
                               [ autoflush => (0|1) ],
                             );

PARAMETERS

file

It's the file path of the log. If file exists log will be appended. If file doesn't exist it will be created.

name

It's the name of log in the case that more process logs to the same file at the same time.

mask

It's a 32 bit mask that will be used to filter messages. If the id of message and-ed with this value is zero then message will be discarded.

If this value is 0 nothing will be logged.

If this value is 0xFFFF or -1 all messages will be logged.

autoflush

It's a boolean value that enabled or disabled autoflush of data into log file. Default value is 0 that is autoflushing data is disabled.

PUBLIC METHODS

log( message => $message , [id => $id], [objects => $objs_arrayref])

Add a log item to log file.

message

It's the message string that will be printed in the log item.

id

It's an optional message id used if it's necessary to filter message. If omitted 0xFFFF will be assumed and so message will be always print at least than mask is 0.

objects

It's an optional reference to an array of objects. Every object in the array will be dumped using Data::Dumper module in the log item.

DIAGNOSTICS

No diagnostics error returned.

EXPORT

Nothing exported

REQUIRES

FileHandle, Data::Dumper

AUTHOR

Emiliano Bruni, <info@ebruni.it>

SEE ALSO

FileHandle , Data::Dumper