Class: Lavin::Statistics

Inherits:
Object
  • Object
show all
Defined in:
lib/lavin/statistics.rb

Class Method Summary collapse

Class Method Details

.duration ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 35

def duration
  return data[:duration] if data[:duration]

  Time.now - data[:start] if data[:start]
end

.meassure ⇒ Object

FIXME: make thread safe



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# File 'lib/lavin/statistics.rb', line 10

def meassure
  reset
  data[:start] = Time.now
  yield.tap { data[:duration] = Time.now - data[:start] }
end

.register_request(method:, url:, status:, duration:) ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 41

def register_request(method:, url:, status:, duration:)
  data[:total_requests] += 1
  key = [method, url]
  result = {status:, duration:}
  result[:failure] = true if status > 499
  data[:requests][key] << result
end

.register_step(user:, step_name:, failure: nil) ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 49

def register_step(user:, step_name:, failure: nil)
  data[:step_summary][:count] += 1
  data[:step_summary][:success] += 1 unless failure
  data[:step_summary][:failure] += 1 if failure
  key = [user, step_name]
  data[:steps][key][:success] += 1 unless failure
  data[:steps][key][:failure] += 1 if failure
  data[:failures][failure.to_s] += 1 if failure
end

.reset ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 16

def reset
  self.data = new_data
end

.show ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 102

def show
  values = stats

  show_summary(values)

  show_steps(values) do |(user, step), hash|
    format(
      "%-48<user_step>s %8<success>d %8<failure>d",
      user_step: "#{user}.#{step}",
      **hash
    )
  end

  show_table(values) do |request_values|
    format(
      "%-6<method>s %-100<url>s %6<requests>d %12<avg_duration>fs %12<min_duration>fs %12<max_duration>fs",
      **request_values
    )
  end

  show_failures(values) do |message, count|
    format("%-64<message>s %6<count>d", message:, count:)
  end
end

.stats ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 59

def stats
  reset unless data
  time = Time.now

  requests = data[:requests].map do |(method, url), requests|
    durations = []
    statuses = []
    failed_requests = 0
    requests.each do |request|
      durations << request[:duration]
      statuses << request[:status]
      failed_requests += 1 if request[:failure]
    end
    min_duration = durations.min
    max_duration = durations.max
    avg_duration = durations.empty? ? 0 : (durations.sum / durations.size)

    {
      method: method.to_s.upcase,
      url: url,
      requests: requests.size,
      statuses: statuses.tally,
      failed_requests:,
      avg_duration:,
      min_duration:,
      max_duration:
    }
  end

  Stats.new(
    duration: duration,
    total_requests: total_requests,
    rate: duration ? format("%.2f", total_requests / duration) : 0,
    step_summary: data[:step_summary],
    steps: data[:steps],
    requests: requests,
    failures: data[:failures]
  ).tap do |stats|
    # FIXME remove!
    puts "Calculated stats in #{Time.now - time}s"
  end
end

.stop ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 20

def stop
  return if data.frozen?

  data[:duration] = (Time.now - data[:start])
  data.freeze
end

.total_requests ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 27

def total_requests
  data[:total_requests]
end

.total_steps ⇒ Object 



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# File 'lib/lavin/statistics.rb', line 31

def total_steps
  data[:step_summary][:count]
end