Class: QueueMetricTracker::StatCalculator

Inherits:
Object
  • Object
show all
Defined in:
lib/worker_roulette/stat_calculator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(granularity = 100) ⇒ StatCalculator

Returns a new instance of StatCalculator.



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# File 'lib/worker_roulette/stat_calculator.rb', line 5

def initialize(granularity = 100)
  @granularity = granularity
  @sum = 0
  @count = 0
end

Instance Attribute Details

#count ⇒ Object

Returns the value of attribute count.



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# File 'lib/worker_roulette/stat_calculator.rb', line 3

def count
  @count
end

#granularity ⇒ Object

Returns the value of attribute granularity.



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# File 'lib/worker_roulette/stat_calculator.rb', line 3

def granularity
  @granularity
end

#sum ⇒ Object

Returns the value of attribute sum.



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# File 'lib/worker_roulette/stat_calculator.rb', line 3

def sum
  @sum
end

Instance Method Details

#add(value) ⇒ Object 



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# File 'lib/worker_roulette/stat_calculator.rb', line 11

def add(value)
  @sum   += value
  @count += 1

  if @count == granularity
    value = @sum / granularity
    @sum = @count = 0
    return value
  end

  return nil
end