Class: ScoutApm::RequestHistograms

Inherits:
Object
  • Object
show all
Defined in:
lib/scout_apm/request_histograms.rb

Constant Summary collapse

DEFAULT_HISTOGRAM_SIZE = 
50

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(histogram_size = DEFAULT_HISTOGRAM_SIZE) ⇒ RequestHistograms

Returns a new instance of RequestHistograms.



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# File 'lib/scout_apm/request_histograms.rb', line 16

def initialize(histogram_size = DEFAULT_HISTOGRAM_SIZE)
  @histogram_size = histogram_size
  initialize_histograms_hash
end

Instance Attribute Details

#histogram_size ⇒ Object (readonly)

Returns the value of attribute histogram_size.



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# File 'lib/scout_apm/request_histograms.rb', line 14

def histogram_size
  @histogram_size
end

Instance Method Details

#add(item, value) ⇒ Object 



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# File 'lib/scout_apm/request_histograms.rb', line 33

def add(item, value)
  @histograms[item].add(value)
end

#approximate_quantile_of_value(item, value) ⇒ Object 



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# File 'lib/scout_apm/request_histograms.rb', line 37

def approximate_quantile_of_value(item, value)
  @histograms[item].approximate_quantile_of_value(value)
end

#as_json ⇒ Object 



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# File 'lib/scout_apm/request_histograms.rb', line 25

def as_json
  Hash[
    @histograms.map{ |key, histogram|
      [key, histogram.as_json]
    }
  ]
end

#each_name ⇒ Object 



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# File 'lib/scout_apm/request_histograms.rb', line 21

def each_name
  @histograms.keys.each { |n| yield n }
end

#initialize_histograms_hash ⇒ Object 



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# File 'lib/scout_apm/request_histograms.rb', line 54

def initialize_histograms_hash
  @histograms = Hash.new { |h, k| h[k] = NumericHistogram.new(histogram_size) }
end

#quantile(item, q) ⇒ Object 



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# File 'lib/scout_apm/request_histograms.rb', line 41

def quantile(item, q)
  @histograms[item].quantile(q)
end

#raw(item) ⇒ Object 



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# File 'lib/scout_apm/request_histograms.rb', line 50

def raw(item)
  @histograms[item]
end

#reset_all! ⇒ Object

Wipes all histograms, setting them back to empty



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# File 'lib/scout_apm/request_histograms.rb', line 46

def reset_all!
  initialize_histograms_hash
end