Class: ActiveSupport::Logger

Inherits:
Logger
  • Object
show all
Includes:
LoggerSilence
Defined in:
activesupport/lib/active_support/logger.rb

Defined Under Namespace

Classes: SimpleFormatter

Class Method Summary collapse

Instance Method Summary collapse

Methods included from LoggerSilence

#silence

Methods included from Concern

#append_features, #class_methods, extended, #included, #prepend_features, #prepended

Constructor Details

#initialize(*args, **kwargs) ⇒ Logger

Returns a new instance of Logger.


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# File 'activesupport/lib/active_support/logger.rb', line 80

def initialize(*args, **kwargs)
  super
  @formatter = SimpleFormatter.new
end

Class Method Details

.broadcast(logger) ⇒ Object

Broadcasts logs to multiple loggers.


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# File 'activesupport/lib/active_support/logger.rb', line 23

def self.broadcast(logger) # :nodoc:
  Module.new do
    define_method(:add) do |*args, &block|
      logger.add(*args, &block)
      super(*args, &block)
    end

    define_method(:<<) do |x|
      logger << x
      super(x)
    end

    define_method(:close) do
      logger.close
      super()
    end

    define_method(:progname=) do |name|
      logger.progname = name
      super(name)
    end

    define_method(:formatter=) do |formatter|
      logger.formatter = formatter
      super(formatter)
    end

    define_method(:level=) do |level|
      logger.level = level
      super(level)
    end

    define_method(:local_level=) do |level|
      logger.local_level = level if logger.respond_to?(:local_level=)
      super(level) if respond_to?(:local_level=)
    end

    define_method(:silence) do |level = Logger::ERROR, &block|
      if logger.respond_to?(:silence)
        logger.silence(level) do
          if defined?(super)
            super(level, &block)
          else
            block.call(self)
          end
        end
      else
        if defined?(super)
          super(level, &block)
        else
          block.call(self)
        end
      end
    end
  end
end

.logger_outputs_to?(logger, *sources) ⇒ Boolean

Returns true if the logger destination matches one of the sources

logger = Logger.new(STDOUT)
ActiveSupport::Logger.logger_outputs_to?(logger, STDOUT)
# => true

Returns:

  • (Boolean)

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# File 'activesupport/lib/active_support/logger.rb', line 16

def self.logger_outputs_to?(logger, *sources)
  logdev = logger.instance_variable_get(:@logdev)
  logger_source = logdev.dev if logdev.respond_to?(:dev)
  sources.any? { |source| source == logger_source }
end