Class: LogStash::Outputs::Application_insights::Multi_io_logger

Inherits:
Object
  • Object
show all
Defined in:
lib/logstash/outputs/application_insights/multi_io_logger.rb

Class Method Summary collapse

Class Method Details

.config(configuration) ⇒ Object



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# File 'lib/logstash/outputs/application_insights/multi_io_logger.rb', line 25

def self.config ( configuration )
  files = configuration[:logger_files].dup
  level = configuration[:logger_level]
  progname = configuration[:logger_progname]
  shift_size = configuration[:logger_shift_size]
  shift_age = configuration[:logger_shift_age]

  files.rotate! if files.length > 1 && [ :stdout, :stderr ].include?( files[0][0] )
  (name, file) = files.shift || [ :stdout, STDOUT ]
  if [ :stdout, :stderr ].include?( name )
    logger = Logger.new( file )
  else
    begin
      file_renamed = File.rename( name, "#{name}.20160714" )
      file_renamed = File.rename( "#{name}.20160714", name )
      logger = Logger.new( name, shift_age, shift_size )
    rescue
      puts "--- logger do not support log shifting on this OS"
      logger = Logger.new( name )
    end

  end
  unless files.empty?
    @@targets = files
    logger.formatter = proc do |severity, datetime, progname, msg|
      formatted_msg = "#{severity[0]}, [#{datetime.utc.iso8601(6)} ##{Process.pid}]  #{severity} -- #{progname}: #{msg}#{$/}"
      begin
        @@targets.each do |name, t| 
          t.write( formatted_msg )
          t.flush 
        end
      rescue # ignore errors
      end
      formatted_msg
    end
  end
  logger.progname = progname
  logger.level = ( level unless configuration[:logger_files].empty? ) || Logger::UNKNOWN
  configuration[:logger] = logger
end