Method: Logging::Layouts::Pattern#initialize

Defined in:

lib/logging/layouts/pattern.rb

#initialize(opts = {}) ⇒ Pattern

call-seq:

Pattern.new( opts )

Creates a new Pattern layout using the following options.

:pattern       =>  "[%d] %-5l -- %c : %m\n"
:date_pattern  =>  "%Y-%m-%d %H:%M:%S"
:date_method   =>  "usec" or "to_s"
:utc_offset    =>  "-06:00" or -21600 or "UTC"
:color_scheme  =>  :default

If used, :date_method will supersede :date_pattern.

The :color_scheme is used to apply color formatting to the log messages. Individual tokens can be colorized witch the level token [%l] receiving distinct colors based on the level of the log event. The entire generated log message can also be colorized based on the level of the log event. See the ColorScheme documentation for more details.

# File 'lib/logging/layouts/pattern.rb', line 219

def initialize( opts = {} )
  super
  @created_at = Time.now.freeze

  @date_pattern = opts.fetch(:date_pattern, nil)
  @date_method = opts.fetch(:date_method, nil)
  @date_pattern = ISO8601 if @date_pattern.nil? && @date_method.nil?

  @pattern = opts.fetch(:pattern,
      "[%d] %-#{::Logging::MAX_LEVEL_LENGTH}l -- %c : %m\n")

  cs_name = opts.fetch(:color_scheme, nil)
  @color_scheme =
      case cs_name
      when false, nil; nil
      when true; ::Logging::ColorScheme[:default]
      else ::Logging::ColorScheme[cs_name] end

  self.class.create_date_format_methods(self)
  self.class.create_format_method(self)
end