Class: Metrics

Inherits:
Object
  • Object
show all
Defined in:
lib/zentool/metrics.rb

Overview

Represents an aggregate of metrics from multiple tickets

Constant Summary collapse

MINUTES_IN_DAY = 
1440
MINUTES_IN_HOUR = 
60
PLOT_WIDTH = 
200
CURRENT_DATE = 
Date.today

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tickets) ⇒ Metrics

Returns a new instance of Metrics.



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# File 'lib/zentool/metrics.rb', line 14

def initialize(tickets)
  @tickets = tickets
  log_scale = {'0' => 0, '1' => 0, '2' => 0, '3' => 0, '4' => 0,
    '5' => 0, '6-10' => 0, '11-20' => 0, '21-50' => 0, '51-100' => 0, '101+' => 0}
  log_scale2 = log_scale.clone
  @unsolved_tickets_by_age_log_scale = unsolved_age(log_scale)
  @solved_tickets_by_age_log_scale = solved_age(log_scale2)
  @avg_user_priority = avg_priority('user_priority')
  @avg_development_priority = avg_priority('development_priority')
end

Instance Attribute Details

#avg_development_priority ⇒ Object

Returns the value of attribute avg_development_priority.



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# File 'lib/zentool/metrics.rb', line 11

def avg_development_priority
  @avg_development_priority
end

#avg_user_priority ⇒ Object

Returns the value of attribute avg_user_priority.



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# File 'lib/zentool/metrics.rb', line 11

def avg_user_priority
  @avg_user_priority
end

#solved_tickets_by_age_log_scale ⇒ Object

Returns the value of attribute solved_tickets_by_age_log_scale.



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# File 'lib/zentool/metrics.rb', line 11

def solved_tickets_by_age_log_scale
  @solved_tickets_by_age_log_scale
end

#tickets ⇒ Object

Returns the value of attribute tickets.



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# File 'lib/zentool/metrics.rb', line 11

def tickets
  @tickets
end

#unsolved_tickets_by_age_log_scale ⇒ Object

Returns the value of attribute unsolved_tickets_by_age_log_scale.



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# File 'lib/zentool/metrics.rb', line 11

def unsolved_tickets_by_age_log_scale
  @unsolved_tickets_by_age_log_scale
end

Instance Method Details

#avg_priority(priority_type) ⇒ Object

Creates plot data for average first reply time by priority



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# File 'lib/zentool/metrics.rb', line 74

def avg_priority(priority_type)
  # Hash with key => user_priority, and the value => array of reply times from tickets with that priority
  tickets_by_priority = Hash.new {|h,k| h[k] = []}

  # Hash with key => user_priority, and the value => average reply time of that priority
  avg_priority = Hash.new(0)

  tickets.each do |ticket|

    priority = ticket.info[priority_type]
    reply_time = ticket.metrics['reply_time_in_minutes']

    if priority == nil
        priority = 'None'
    end

    if reply_time
      tickets_by_priority[priority] << reply_time
    end
  end

  tickets_by_priority.each do |key, value|
      if key == nil
          key = 'None'
      end
      avg = value.inject(:+).to_f / value.length
      avg_priority[key] = avg / MINUTES_IN_HOUR
  end
  avg_priority
end

#graph ⇒ Object

draws command line graph based on ticket metrics



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# File 'lib/zentool/metrics.rb', line 106

def graph
  puts
  puts 'Age of Solved Tickets'
  puts '_____________________'
	puts 'Days     Ticket-Count'
	@solved_tickets_by_age_log_scale.keys.each do |age|
    printf "%-10s %5d %s \n" % [age, @solved_tickets_by_age_log_scale[age],
      '#' * (Math.log10(@solved_tickets_by_age_log_scale[age]+1)*5)]
	end

  puts
  puts 'Age of Unsolved Tickets'
  puts '_______________________'
  puts 'Days     Ticket-Count'
  @unsolved_tickets_by_age_log_scale.keys.each do |age|
    printf "%-10s %5d %s \n" % [age, @unsolved_tickets_by_age_log_scale[age],
      '#' * (Math.log10(@unsolved_tickets_by_age_log_scale[age]+1)*5)]
  end

  puts
  puts 'Average First Reply Time by Development Priority'
  puts '___________________________________________'
	puts 'Priority   Reply-Time-Hours'
	@avg_development_priority.keys.sort.each do |development_priority|
    printf "%-10s %5d %s \n" % [development_priority, @avg_development_priority[development_priority],
      '#' * (@avg_development_priority[development_priority] / PLOT_WIDTH)]
	end

  puts
  puts 'Average First Reply Time by User Priority'
  puts '___________________________________________'
  puts 'Priority   Reply-Time-Hours'
  @avg_user_priority.keys.sort.each do |user_priority|
    printf "%-10s %5d %s \n" % [user_priority, @avg_user_priority[user_priority],
      '#' * (@avg_user_priority[user_priority] / PLOT_WIDTH)]
  end
end

#plot_as_log(tickets_by_log_scale, age) ⇒ Object 



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# File 'lib/zentool/metrics.rb', line 25

def plot_as_log(tickets_by_log_scale, age)
  if age <= 5
    tickets_by_log_scale[age.to_s] += 1
  elsif age <= 10
    tickets_by_log_scale['6-10'] += 1
  elsif age <= 20
    tickets_by_log_scale['11-20'] += 1
  elsif age <= 50
    tickets_by_log_scale['21-50'] += 1
  elsif age <= 100
    tickets_by_log_scale['51-100'] += 1
  else
    tickets_by_log_scale['101+'] += 1
  end
  tickets_by_log_scale
end

#save ⇒ Object 



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# File 'lib/zentool/metrics.rb', line 144

def save
  CSV.open('solved_tickets_by_age.csv', 'wb') do |csv|
    csv << ['Days', 'Ticket-Count']
  end
  @solved_tickets_by_age_log_scale.keys.each do |age|
    CSV.open('solved_tickets_by_age.csv', 'a') do |csv|
      csv << [age, @solved_tickets_by_age_log_scale[age]]
    end
  end

  CSV.open('unsolved_tickets_by_age.csv', 'wb') do |csv|
    csv << ['Days', 'Ticket-Count']
  end
  @unsolved_tickets_by_age_log_scale.keys.each do |age|
    CSV.open('unsolved_tickets_by_age.csv', 'a') do |csv|
      csv << [age, @unsolved_tickets_by_age_log_scale[age]]
    end
  end

  CSV.open('avg_reply_time_priority.csv', 'wb') do |csv|
    csv << ['Priority', 'Average-Reply-Time']
  end
  @avg_development_priority.keys.sort.each do |age|
    CSV.open('avg_reply_time_priority.csv', 'a') do |csv|
      csv << [age, @avg_development_priority[age]]
    end
  end
end

#solved_age(log_scale) ⇒ Object

Creates plot data for number of solved tickets by age



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# File 'lib/zentool/metrics.rb', line 60

def solved_age(log_scale)
  out_scale = Hash.new
  @tickets.each do |ticket|
    metrics = ticket.metrics
    # Rounds the age of the ticket down to the nearest day
    if metrics['full_resolution_time_in_minutes']
      age = metrics['full_resolution_time_in_minutes'] / MINUTES_IN_DAY
      log_scale = plot_as_log(log_scale, age)
    end
  end
  log_scale
end

#unsolved_age(log_scale) ⇒ Object

Creates plot data for number of solved tickets by age



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# File 'lib/zentool/metrics.rb', line 43

def unsolved_age(log_scale)
  out_scale = Hash.new
  @tickets.each do |ticket|
    metrics = ticket.metrics
    # Rounds the age of the ticket down to the nearest day
    unless metrics['full_resolution_time_in_minutes']
      if metrics['initially_assigned_at']
        start_date = Date.parse metrics['initially_assigned_at']
        age = (CURRENT_DATE - start_date).to_i
        log_scale = plot_as_log(log_scale, age)
      end
    end
  end
  log_scale
end