Contents

require 'logger'
require 'colorize'

module Logging
  def log
    @log ||= Logging.logger_for(self.class.name)
  end

  # Use a hash class-ivar to cache a unique Logger per class:
  @loggers = {}

  # Global, memoized, lazy initialized instance of a logger
  class << self
    def logger_for(classname)
      @loggers[classname] ||= configure_logger_for(classname)
    end

    def configure_logger_for(classname)
      logger          = Logger.new(STDOUT)
      logger.progname = classname

      # :debug < :info < :warn < :error < :fatal < :unknown
      if ENV['LOG_LEVEL'] == '' || ENV['LOG_LEVEL'].nil?
        logger.level = 'INFO'
      else
        logger.level = ENV['LOG_LEVEL']
      end

      logger.formatter = proc do |severity, datetime, progname, msg|
        datetime = datetime.strftime("%Y-%m-%d | %I:%M:%S.%L")
        message = "#{datetime} | #{progname} | #{severity} | #{msg}\n"

        case severity
        when 'DEBUG'
          message.cyan
        when 'INFO'
          message.green
        when 'WARN'
          message.yellow
        when 'ERROR'
          message.light_red
        when 'FATAL'
          message.red
        when 'UNKNOWN'
          message.magenta
        end
      end

      logger
    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
elastic_manager-0.1.3	lib/elastic_manager/logger.rb
elastic_manager-0.1.2	lib/elastic_manager/logger.rb
elastic_manager-0.1.1	lib/elastic_manager/logger.rb
elastic_manager-0.1.0	lib/elastic_manager/logger.rb