Class: RequestLogAnalyzer::Tracker::Traffic

Inherits:
NumericValue show all
Defined in:
lib/request_log_analyzer/tracker/traffic.rb

Overview

Analyze the average and total traffic of requests

Options

  • :category Proc that handles request categorization for given fileformat (REQUEST_CATEGORIZER)

  • :traffic The field containing the duration in the request hash.

  • :if Proc that has to return !nil for a request to be passed to the tracker.

  • :line_type The line type that contains the duration field (determined by the category proc).

  • :title Title do be displayed above the report

  • :unless Handle request if this proc is false for the handled request.

Instance Attribute Summary

Attributes inherited from NumericValue

#categories

Attributes inherited from Base

#options

Instance Method Summary collapse

Methods inherited from NumericValue

#bucket_average_value, #bucket_index, #bucket_interval, #bucket_lower_bound, #bucket_upper_bound, #bucket_value, #bucketize, #hits, #hits_overall, #max, #mean, #mean_overall, #median, #min, #percentile, #percentile_index, #percentile_indices, #percentile_interval, #report, #report_table, #sorted_by, #statistics_header, #statistics_row, #stddev, #sum, #sum_overall, #to_yaml_object, #update, #update_statistics, #variance

Methods inherited from Base

#create_lambda, #finalize, #initialize, #report, #setup_should_update_checks!, #should_update?, #to_yaml_object, #update

Constructor Details

This class inherits a constructor from RequestLogAnalyzer::Tracker::Base

Instance Method Details

#display_value(bytes) ⇒ Object

Formats the traffic number using x B/kB/MB/GB etc notation



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# File 'lib/request_log_analyzer/tracker/traffic.rb', line 27

def display_value(bytes)
  return '-'   if bytes.nil?
  return '0 B' if bytes.zero?

  case [Math.log10(bytes.abs).floor, 0].max
  when  0...4  then '%d B'  % bytes
  when  4...7  then '%d kB' % (bytes / 1000)
  when  7...10 then '%d MB' % (bytes / 1_000_000)
  when 10...13 then '%d GB' % (bytes / 1_000_000_000)
  else              '%d TB' % (bytes / 1_000_000_000_000)
  end
end

#prepare ⇒ Object

Check if duration and catagory option have been received,



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# File 'lib/request_log_analyzer/tracker/traffic.rb', line 13

def prepare
  options[:value] = options[:traffic] if options[:traffic]
  options[:total] = true
  super

  @number_of_buckets = options[:number_of_buckets] || 1000
  @min_bucket_value  = options[:min_bucket_value] ? options[:min_bucket_value].to_f : 1
  @max_bucket_value  = options[:max_bucket_value] ? options[:max_bucket_value].to_f : 1_000_000_000_000

  # precalculate the bucket size
  @bucket_size = (Math.log(@max_bucket_value) - Math.log(@min_bucket_value)) / @number_of_buckets.to_f
end

#title ⇒ Object

Returns the title of this tracker for reports



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# File 'lib/request_log_analyzer/tracker/traffic.rb', line 41

def title
  options[:title]  || 'Request traffic'
end