Class: BackgroundQueue::Worker::Logger

Inherits:
Logger
  • Object
show all
Defined in:
lib/background_queue/worker/logger.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(logdev, task_key) ⇒ Logger

Returns a new instance of Logger.



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# File 'lib/background_queue/worker/logger.rb', line 4

def initialize(logdev, task_key)
	super(logdev, 0, 1048576)
	@default_formatter = BackgroundQueue::Worker::LogFormatter.new(task_key)
end

Class Method Details

.build_logger(path, task_key, level) ⇒ Object 



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# File 'lib/background_queue/worker/logger.rb', line 50

def self.build_logger(path, task_key, level)
  logger = BackgroundQueue::Worker::Logger.new(path, task_key)
  logger.level = level
  logger
end

.init_logger(worker_name, owner_key, job_key, task_key, level) ⇒ Object 



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# File 'lib/background_queue/worker/logger.rb', line 17

def self.init_logger(worker_name, owner_key, job_key, task_key, level)
  logger = build_logger("#{BackgroundQueue::Utils.current_root}/log/workers/#{worker_name}-#{owner_key}-#{job_key}.log", task_key, level)
  
  prev_state = {}
  
  #we also want to have active record use this log file
  if defined? ActiveRecord && defined? ActiveRecord::Base && ActiveRecord::Base.class.respond_to?(:logger)
    begin
        prev_state[:ar_base] = ActiveRecord::Base.logger
        ActiveRecord::Base.logger = logger
        
        if ActiveRecord::Base.respond_to?(:active_connections)
          #set the logger for connections that are already loaded
          ActiveRecord::Base.active_connections.each_value { |con| con.set_logger(ActiveRecord::Base.logger)}
        end
      rescue Exception=>e
        logger.debug("Error setting up active record logger: #{e.message}")
      end
  end
  
  #and RAILS_DEFAULT_LOGGER
  if defined?(RAILS_DEFAULT_LOGGER)
    prev_state[:rails_default_logger] = RAILS_DEFAULT_LOGGER
      Object.redefine_const(
        :RAILS_DEFAULT_LOGGER,
        logger
      )
  end
    
  logger.set_previous_state(prev_state) unless prev_state.empty?
    logger
end

Instance Method Details

#format_message(severity, datetime, progname, msg) ⇒ Object 



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# File 'lib/background_queue/worker/logger.rb', line 13

def format_message(severity, datetime, progname, msg)
	(@formatter || @default_formatter).call(severity, datetime, progname, msg)
end

#revert_to_previous_state ⇒ Object 



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# File 'lib/background_queue/worker/logger.rb', line 56

def revert_to_previous_state
  unless @previous_state.nil?
    if @previous_state[:ar_base]
      ActiveRecord::Base.logger = @previous_state[:ar_base]
      if ActiveRecord::Base.respond_to?(:active_connections)
          #set the logger for connections that are already loaded
          ActiveRecord::Base.active_connections.each_value { |con| con.set_logger(ActiveRecord::Base.logger)}
        end
    end
    if @previous_state[:rails_default_logger]
      Object.redefine_const(
          :RAILS_DEFAULT_LOGGER,
          @previous_state[:rails_default_logger]
        )
    end
  end
end

#set_previous_state(previous_state) ⇒ Object 



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# File 'lib/background_queue/worker/logger.rb', line 9

def set_previous_state(previous_state)
  @previous_state = previous_state
end