Class: MetricFu::ChurnHotspot

Inherits:
Hotspot
  • Object
show all
Defined in:
lib/metric_fu/metrics/churn/hotspot.rb

Constant Summary collapse

COLUMNS = 
%w{times_changed}

Instance Method Summary collapse

Methods inherited from Hotspot

analyzer_for_metric, analyzers, #get_mean, #map, #mapping_strategies, metric, #not_implemented, #reduce, #score

Instance Method Details

#calculate_score(metric_ranking, item) ⇒ Object 



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# File 'lib/metric_fu/metrics/churn/hotspot.rb', line 24

def calculate_score(metric_ranking, item)
  flat_churn_score = 0.50
  metric_ranking.scored?(item) ? flat_churn_score : 0
end

#columns ⇒ Object 



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# File 'lib/metric_fu/metrics/churn/hotspot.rb', line 4

def columns
  COLUMNS
end

#generate_records(data, table) ⇒ Object 



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# File 'lib/metric_fu/metrics/churn/hotspot.rb', line 29

def generate_records(data, table)
  return if data == nil
  Array(data[:changes]).each do |change|
    table << {
      "metric" => :churn,
      "times_changed" => change[:times_changed],
      "file_path" => change[:file_path]
    }
  end
end

#map_strategy ⇒ Object 



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# File 'lib/metric_fu/metrics/churn/hotspot.rb', line 12

def map_strategy
  :present
end

#name ⇒ Object 



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# File 'lib/metric_fu/metrics/churn/hotspot.rb', line 8

def name
  :churn
end

#present_group(group) ⇒ Object 



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# File 'lib/metric_fu/metrics/churn/hotspot.rb', line 40

def present_group(group)
  "detected high level of churn (changed #{group[0].times_changed} times)"
end

#reduce_strategy ⇒ Object 



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# File 'lib/metric_fu/metrics/churn/hotspot.rb', line 16

def reduce_strategy
  :sum
end

#score_strategy ⇒ Object 



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# File 'lib/metric_fu/metrics/churn/hotspot.rb', line 20

def score_strategy
  :calculate_score
end