Class: Log4r::Outputter::OutputterFactory

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/log4r/outputter/outputterfactory.rb

Overview

:nodoc:

Class Method Summary collapse

Class Method Details

.create_methods(out, levels = nil) ⇒ Object

handles two cases: logging above a level (no second arg specified) or logging a set of levels (passed into the second argument)



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# File 'lib/log4r/outputter/outputterfactory.rb', line 18

def self.create_methods(out, levels=nil)
  Logger.root # force levels to be loaded

  # first, undefine all the log levels
  for mname in LNAMES
    undefine_log(mname.downcase, out)
  end
  if not levels.nil? and levels.include? OFF
    raise TypeError, "Can't log only_at OFF", caller[1..-1]
  end
  return out if out.level == OFF

  if levels.nil? # then define the log methods for lev >= outlev
    for lev in out.level...LEVELS
      define_log(LNAMES[lev].downcase, lev, out)
    end
  else # define the logs only for assigned levels
    for lev in levels
      define_log(LNAMES[lev].downcase, lev, out)
    end
  end
  return out
end

.define_log(mname, level, out) ⇒ Object

we need to synch the actual write/format for thread safteyness



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# File 'lib/log4r/outputter/outputterfactory.rb', line 43

def self.define_log(mname, level, out)
  return if mname == 'off' || mname == 'all'
  mstr = %-
    def out.#{mname}(logevent)
      canonical_log(logevent)
    end
  -
  module_eval mstr
end

.undefine_log(mname, out) ⇒ Object 



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# File 'lib/log4r/outputter/outputterfactory.rb', line 53

def self.undefine_log(mname, out)
  return if mname == 'off' || mname == 'all'
  mstr = "def out.#{mname}(logevent); end"
  module_eval mstr
end