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# encoding: UTF-8
require 'log4r'
require 'mauve/configuration_builder'
module Mauve
module ConfigurationBuilders
class LoggerOutputter < ObjectBuilder
def builder_setup(outputter)
@outputter = outputter.capitalize+"Outputter"
begin
Log4r.const_get(@outputter)
rescue
require "log4r/outputter/#{@outputter.downcase}"
end
@outputter_name = "Mauve-"+5.times.collect{rand(36).to_s(36)}.join
@args = {}
end
def result
@result ||= Log4r.const_get(@outputter).new("Mauve", @args)
end
def format(f)
result.formatter = Log4r::PatternFormatter.new(:pattern => f)
end
#
# This is needed to be able to pass arbitrary arguments to Log4r
# outputters.
#
def method_missing(name, value=nil)
if value.nil?
result.send(name.to_sym)
else
@args[name.to_sym] = value
end
end
end
class Logger < ObjectBuilder
is_builder "outputter", LoggerOutputter
def builder_setup
@result = Log4r::Logger['Mauve'] || Log4r::Logger.new('Mauve')
@default_format = nil
@default_level = Log4r::RootLogger.instance.level
end
def default_format(f)
begin
@default_formatter = Log4r::PatternFormatter.new(:pattern => f)
rescue SyntaxError
raise BuildException.new "Bad log format #{f.inspect}"
end
#
# Set all current outputters
#
result.outputters.each do |o|
o.formatter = @default_formatter if o.formatter.is_a?(Log4r::DefaultFormatter)
end
end
def default_level(l)
if Log4r::Log4rTools.valid_level?(l)
@default_level = l
else
raise "Bad default level set for the logger #{l}.inspect"
end
result.outputters.each do |o|
o.level = @default_level if o.level == Log4r::RootLogger.instance.level
end
end
def created_outputter(outputter)
#
# Set the formatter and level for any newly created outputters
#
if @default_formatter
outputter.formatter = @default_formatter if outputter.formatter.is_a?(Log4r::DefaultFormatter)
end
if @default_level
outputter.level = @default_level if outputter.level == Log4r::RootLogger.instance.level
end
result.outputters << outputter
# result.outputter.write("Created logger")
end
end
end
#
# this should live in Logger but can't due to
# http://briancarper.net/blog/ruby-instance_eval_constant_scoping_broken
#
module LoggerConstants
Log4r.define_levels(*Log4r::Log4rConfig::LogLevels) # ensure levels are loaded
DEBUG = Log4r::DEBUG
INFO = Log4r::INFO
WARN = Log4r::WARN
ERROR = Log4r::ERROR
FATAL = Log4r::FATAL
end
class ConfigurationBuilder < ObjectBuilder
include LoggerConstants
is_builder "logger", ConfigurationBuilders::Logger
end
end
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