require 'ganymed/sampler/datasource'

module Ganymed
  class Sampler

    ##
    # A Gauge is the simplest DataSource type. It simply records the given
    # value in the buffer and emits all values in the buffer upon flush
    # assuming the given values are in gauge-style (e.g. free memory, users
    # currently logged in, etc).
    #
    class Gauge < DataSource
      def flush
        each do |ns, origin, ts|
          yield ns, origin, ts.values.flatten
        end
      end
    end
  end
end