• NAME
• ABSTRACT
• SYNOPSIS
• DESCRIPTION
• ATTRIBUTES
  • handler
  • level
  • separator
• INHERITS
• INTEGRATES
• METHODS
  • debug
  • error
  • fatal
  • info
  • input
  • output
  • string
  • trace
  • warn
  • write
• AUTHORS
• LICENSE

NAME

Venus::Log - Log Class

ABSTRACT

Log Class for Perl 5

SYNOPSIS

  package main;

  use Venus::Log;

  my $log = Venus::Log->new;

  # $log->trace(time, 'Something failed!');

  # "0000000000 Something failed!"

  # $log->error(time, 'Something failed!');

  # "0000000000 Something failed!"

DESCRIPTION

This package provides methods for logging information using various log levels.

ATTRIBUTES

This package has the following attributes:

handler

  handler(CodeRef $code) (CodeRef)

The handler attribute holds the callback that handles logging.

Since 1.68

handler example 1

  # given: synopsis

  package main;

  my $handler = $log->handler;

  my $events = [];

  $handler = $log->handler(sub{push @$events, [@_]});

level

  level(Str $name) (Str)

The level attribute holds the current log level.

Since 1.68

level example 1

  # given: synopsis

  package main;

  my $level = $log->level;

  # "trace"

  $level = $log->level('fatal');

  # "fatal"

separator

  separator(Any $data) (Any)

The separator attribute holds the value used to join multiple log message arguments.

Since 1.68

separator example 1

  # given: synopsis

  package main;

  my $separator = $log->separator;

  # ""

  $separator = $log->separator("\n");

  # "\n"

INHERITS

This package inherits behaviors from:

Venus::Kind::Utility

INTEGRATES

This package integrates behaviors from:

Venus::Role::Buildable

METHODS

This package provides the following methods:

debug

  debug(Str @data) (Log)

The debug method logs debug information and returns the invocant.

Since 1.68

debug example 1

  # given: synopsis

  package main;

  # $log = $log->debug(time, 'Something failed!');

  # "0000000000 Something failed!"

debug example 2

  # given: synopsis

  package main;

  # $log->level('info');

  # $log = $log->debug(time, 'Something failed!');

  # noop

error

  error(Str @data) (Log)

The error method logs error information and returns the invocant.

Since 1.68

error example 1

  # given: synopsis

  package main;

  # $log = $log->error(time, 'Something failed!');

  # "0000000000 Something failed!"

error example 2

  # given: synopsis

  package main;

  # $log->level('fatal');

  # $log = $log->error(time, 'Something failed!');

  # noop

fatal

  fatal(Str @data) (Log)

The fatal method logs fatal information and returns the invocant.

Since 1.68

fatal example 1

  # given: synopsis

  package main;

  # $log = $log->fatal(time, 'Something failed!');

  # "0000000000 Something failed!"

fatal example 2

  # given: synopsis

  package main;

  # $log->level('unknown');

  # $log = $log->fatal(time, 'Something failed!');

  # noop

info

  info(Str @data) (Log)

The info method logs info information and returns the invocant.

Since 1.68

info example 1

  # given: synopsis

  package main;

  # $log = $log->info(time, 'Something failed!');

  # "0000000000 Something failed!"

info example 2

  # given: synopsis

  package main;

  # $log->level('warn');

  # $log = $log->info(time, 'Something failed!');

  # noop

input

  input(Str @data) (Str)

The input method returns the arguments provided to the log level methods, to the "output", and can be overridden by subclasses.

Since 1.68

input example 1

  # given: synopsis

  package main;

  my @input = $log->input(1, 'Something failed!');

  # (1, 'Something failed!')

output

  output(Str @data) (Str)

The output method returns the arguments returned by the "input" method, to the log handler, and can be overridden by subclasses.

Since 1.68

output example 1

  # given: synopsis

  package main;

  my $output = $log->output(time, 'Something failed!');

  # "0000000000 Something failed!"

string

  string(Any $data) (Str)

The string method returns a stringified representation of any argument provided and is used by the "output" method.

Since 1.68

string example 1

  # given: synopsis

  package main;

  my $string = $log->string;

  # ""

string example 2

  # given: synopsis

  package main;

  my $string = $log->string('Something failed!');

  # "Something failed!"

string example 3

  # given: synopsis

  package main;

  my $string = $log->string([1,2,3]);

  # [1,2,3]

string example 4

  # given: synopsis

  package main;

  my $string = $log->string(bless({}));

  # "bless({}, 'main')"

trace

  trace(Str @data) (Log)

The trace method logs trace information and returns the invocant.

Since 1.68

trace example 1

  # given: synopsis

  package main;

  # $log = $log->trace(time, 'Something failed!');

  # "0000000000 Something failed!"

trace example 2

  # given: synopsis

  package main;

  # $log->level('debug');

  # $log = $log->trace(time, 'Something failed!');

  # noop

warn

  warn(Str @data) (Log)

The warn method logs warn information and returns the invocant.

Since 1.68

warn example 1

  # given: synopsis

  package main;

  # $log = $log->warn(time, 'Something failed!');

  # "0000000000 Something failed!"

warn example 2

  # given: synopsis

  package main;

  # $log->level('error');

  # $log = $log->warn(time, 'Something failed!');

  # noop

write

  write(Any @data) (Log)

The write method invokes the log handler, i.e. "handler", and returns the invocant.

Since 1.68

write example 1

  # given: synopsis

  package main;

  # $log = $log->write(time, 'Something failed!');

  # bless(..., "Venus::Log")

AUTHORS

Awncorp, awncorp@cpan.org

LICENSE

Copyright (C) 2000, Al Newkirk.

This program is free software, you can redistribute it and/or modify it under the terms of the Apache license version 2.0.

cpanm Venus

perl -MCPAN -e shell
install Venus