顯示數據集中的字節數

Question

我編寫了一個程序來創建IP地址，URL，錯誤代碼和IP訪問頻率的直方圖，並且希望獲取爲每個直方圖收集的數據的大小（以字節爲單位） 。我環顧四周，看到了一些關於bytes方法，但似乎無法使其發揮作用。

任何想法如何做到這一點的代碼？我想在每個方法中顯示文件名後添加「字節放置」行。

class CommonLog 

    def initialize(logfile) 
    @logfile = logfile 
    end 

    def readfile 
    @readfile = File.readlines(@logfile).map { |line| 
     line.split() 
    } 
    @readfile = @readfile.to_s.split(" ") 
    end 

    def ip_histogram 
    @ip_count = 0 
    @readfile.each_index { |index| 
     if (@readfile[index] =~ /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/) 
     puts @readfile[index] 
     puts @ip_count += 1 
     end 
    } 
    puts File.basename @logfile 
    end 

    def url_histogram 
    @url_count = 0 
    @readfile.each_index { |index| 
     if (@readfile[index] =~ /\/{1}(([a-z]{4,})|(\~{1}))\:{0}\S+/) 
     puts @readfile[index] 
     puts @url_count += 1 
     end 
    } 
    puts File.basename @logfile 
    end 

    def requests_per_hour 
    @time_count2 = 0 
    @time_count3 = 0 
    @time_count4 = 0 
    @time_count5 = 0 
    @time_count6 = 0 

    @readfile.each_index { |index| 
     if (@readfile[index] =~ /\:\d{2}\:/) 
     @new = @readfile[index].split(":") 
     if @new[1] == "02" 
      @time_count2 += 1 
     elsif @new[1] == "03" 
      @time_count3 += 1 
     elsif @new[1] == "04" 
      @time_count4 += 1 
     elsif @new[1] == "05" 
      @time_count5 += 1 
     elsif @new[1] == "06" 
      @time_count6 += 1 
     end 
     end 


    } 
    puts "#{@time_count2} instances during hour 2" 
    puts "#{@time_count3} instances during hour 3" 
    puts "#{@time_count4} instances during hour 4" 
    puts "#{@time_count5} instances during hour 5" 
    puts "#{@time_count6} instances during hour 6" 
    puts File.basename @logfile 
    end 

    def sorted_list 
    @codearray = Array.new 
    @http_code_count = 0 
    @count200 = 0 
    @count304 =0 
    @count301 = 0 
    @count403 = 0 

    @readfile.each_index { |index| 
     if @readfile[index] =~ /([2][0][0]")|([3][0][4])|([3][0][1])|([4][0][3])/ 
     @codearray << @readfile[index] 
     @http_code_count += 1 
     if @readfile[index] == '200' 
      @count200 += 1 
     elsif @readfile[index] == "304" 
      @count304 += 1 
     elsif @readfile[index] == "301" 
      @count301 += 1 
      elseif @readfile[index] == "403" 
      @count403 += 1 
     end 
     end 
    } 

    @hash_count = 0 
    @frequencies = Hash.new(0) 
    @codearray.each { |word| @frequencies[word] += 1 } 
    @frequencies = @frequencies.sort_by { |a, b| a} 
    @frequencies.each { |word, frequency| @hash_count += frequency} 
    @frequencies.each { |key, value| 
     puts "Error #{key} : #{(value.to_f/@hash_count.to_f)*100}%" 
    } 
    puts File.basename @logfile 
    end 

end 

my_file = CommonLog.new("test_log") 
my_file.readfile 
my_file.ip_histogram 
my_file.url_histogram 
my_file.requests_per_hour 
my_file.sorted_list 

Answer 1

假設處理的字節數是整個size of each log file你可以做這樣的事情：

class CommonLog 

    attr_reader :bytes_read 

    def initialize(logfile) 
    @logfile = logfile 
    @bytes_read = File.size(logfile) 
    end 

    # ... now simply print "bytes_read" when desired ...