How to create a logger and integrate a logger with your app

how-to-logging.rb

# encoding: utf-8

class Bootstrap # <- example

  def logger(name, level = 'debug')
    if development?
      STDOUT.sync = true
      Logger.new(STDOUT).tap do |logger|
        logger.formatter = proc do |level, _, _, message|
          "[#{level}] #{message}\n"
        end
      end
    else
      Logger::Syslog.new(name).tap do |logger|
        logger.formatter = Logger::SyslogFormatter.new
        logger.level = eval("Logger::#{level.upcase}")
      end
    end
  end
end

class App
  
  # snip .. here codes of App class
  
  def self.logger=(logger)
    @@logger = logger
  end
 
  def self.logger
    @@logger
  end
  
end
 
App.logger = Bootstrap.logger('my_app')