Class: MerbAnalyzer::Summarizer

Inherits:
Base::Summarizer show all
Defined in:
lib/merb_analyzer/summarizer.rb

Overview

Functions to summarize an array of requets. Can calculate request counts, duratations, mean times etc. of all the requests given.

Constant Summary

Constants inherited from Base::Summarizer

Base::Summarizer::DEFAULT_BLOCKER_DURATION

Instance Attribute Summary

Attributes inherited from Base::Summarizer

#actions, #blocker_duration, #errors, #first_request_at, #last_request_at, #methods, #request_count, #request_time_graph

Instance Method Summary collapse

Methods inherited from Base::Summarizer

#duration, #has_timestamps?, #initialize, #request_time_graph?, #sort_actions_by, #sort_blockers_by, #sort_errors_by

Constructor Details

This class inherits a constructor from Base::Summarizer

Instance Method Details

#group(request, &block) ⇒ Object

Parse a request string into a hash containing all keys found in the string. Yields the hash found to the block operator. request The request string to parse. &block Block operator



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# File 'lib/merb_analyzer/summarizer.rb', line 17

def group(request, &block)
  request[:duration] ||= 0
  
  case request[:type]   
    when :started 
      @first_request_at ||= request[:timestamp] # assume time-based order of file
      @last_request_at  = request[:timestamp]   # assume time-based order of file
      @request_time_graph[request[:timestamp][11..12].to_i] +=1
      
    when :params
      params_hash = {}
      request[:raw_hash].split(',').collect{|x| x.split('=>')}.each do |k,v|
        key = k.gsub('"', '').gsub(' ', '').to_sym
        value = v.gsub('"', '')
        request.store(key, value)
      end
      
      hash = block_given? ? yield(request) : request.hash

      @actions[hash] ||= {:count => 0, :total_time => 0.0, :total_db_time => 0.0, :total_rendering_time => 0.0, 
                             :min_time => request[:duration], :max_time => request[:duration] }

      @actions[hash][:count] += 1
      request[:method] = 'GET' unless request[:method]
      @methods[request[:method].upcase.to_sym] += 1

      @hash_cache = hash
    when :completed
      @request_count += 1 
      
      @actions[@hash_cache][:total_time] += request[:dispatch_time]
      @actions[@hash_cache][:mean_time] = @actions[@hash_cache][:total_time] / @actions[@hash_cache][:count].to_f          
      @actions[@hash_cache][:min_time] = [@actions[@hash_cache][:min_time], request[:dispatch_time]].min
      @actions[@hash_cache][:max_time] = [@actions[@hash_cache][:min_time], request[:dispatch_time]].max
      
      @actions[@hash_cache][:total_db_time] = 0
      @actions[@hash_cache][:mean_db_time] = 0
      @actions[@hash_cache][:mean_rendering_time] = 0
      
    when :failed

  end
end

#initialize_hook(options = {}) ⇒ Object

Initializer. Sets global variables



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# File 'lib/merb_analyzer/summarizer.rb', line 9

def initialize_hook(options = {})
  @hash_cache = nil
end