Class: Liteboard

Inherits:
Object
  • Object
show all
Defined in:
lib/litestack/liteboard/liteboard.rb

Constant Summary collapse

@@resolutions = 
{"minute" => [300, 12], "hour" => [3600, 24], "day" => [3600 * 24, 7], "week" => [3600 * 24 * 7, 53], "year" => [3600 * 24 * 365, 100]}
@@res_mapping = 
{"hour" => "minute", "day" => "hour", "week" => "day", "year" => "week"}
@@templates = 
{}
@@app = 
Hanami::Router.new do
  get "/", to: ->(env) do
    Liteboard.new(env).call(:index)
  end
   get "/topics/Litejob", to: ->(env) do
    Liteboard.new(env).call(:litejob)
  end
   get "/topics/Litecache", to: ->(env) do
    Liteboard.new(env).call(:litecache)
  end
   get "/topics/Litedb", to: ->(env) do
    Liteboard.new(env).call(:litedb)
  end
   get "/topics/Litecable", to: ->(env) do
    Liteboard.new(env).call(:litecable)
  end
end

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(env) ⇒ Liteboard

Returns a new instance of Liteboard.



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# File 'lib/litestack/liteboard/liteboard.rb', line 36

def initialize(env)
  @env = env
  @params = @env["router.params"]
  @running = true
  @lm = Litemetric.instance
end

Class Method Details

.app ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 401

def self.app
  @@app
end

Instance Method Details

#after(body = nil) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 53

def after(body = nil)
  [200, {"Cache-Control" => "no-cache"}, [body]]
end

#before ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 57

def before
  @res = params(:res) || "day"
  @resolution = @@res_mapping[@res]
  if !@resolution
    @res = "day"
    @resolution = @@res_mapping[@res]
  end
  @step = @@resolutions[@resolution][0]
  @count = @@resolutions[@resolution][1]
  @order = params(:order)
  @order = nil if @order == ""
  @dir = params(:dir)
  @dir = "desc" if @dir.nil? || @dir == ""
  @dir = @dir.downcase
  @idir = if @dir == "asc"
    "desc"
  else
    "asc"
  end
  @search = params(:search)
  @search = nil if @search == ""
  @topics = @lm.topic_summaries(@resolution, @step * @count, @order, @dir, @search)
end

#call(method) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 47

def call(method)
  before
  res = send(method)
  after(res)
end

#compose_query(field) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 364

def compose_query(field)
  field.downcase!
  "res=#{@res}&order=#{field}&dir=#{(@order == field) ? @idir : @dir}&search=#{@search}"
end

#dir(field) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 373

def dir(field)
  if sorted?(field)
    if @dir == "asc"
      return "<span class='material-icons'>arrow_drop_up</span>"
    else
      return "<span class='material-icons'>arrow_drop_down</span>"
    end
  end
  "&nbsp;&nbsp;"
end

#encode(text) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 384

def encode(text)
  URI.encode_uri_component(text)
end

#event_sort_url(field) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 360

def event_sort_url(field)
  "/topics/#{encode(@topic)}/events/#{encode(@event)}?#{compose_query(field)}"
end

#format(float) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 393

def format(float)
  string = float.to_s
  whole, decimal = string.split(".")
  whole = whole.chars.reverse.each_slice(3).map(&:join).join(",").reverse
  whole = [whole, decimal].join(".") if decimal
  whole
end

#index ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 81

def index
  @order ||= "topic"
  @topics.each do |topic|
    data_points = @lm.topic_data_points(@step, @count, @resolution, topic[0])
    topic << data_points.collect { |r| [r[0], r[2] || 0] }
  end
  render :index
end

#index_sort_url(field) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 352

def index_sort_url(field)
  "/?#{compose_query(field)}"
end

#index_url ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 344

def index_url
  "/?res=#{@res}&order=#{@order}&dir=#{@dir}&search=#{@search}"
end

#litecable ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 297

def litecable
  @order ||= "rcount"
  @topic = "Litecable"
  @events = @lm.events_summaries(@topic, @resolution, @order, @dir, @search, @step * @count)
  @events.each do |event|
    data_points = @lm.event_data_points(@step, @count, @resolution, @topic, event["name"])
    event["counts"] = data_points.collect { |r| [r["rtime"], r["rcount"] || 0] }
  end

  @subscription_count = begin
    @events.find { |t| t["name"] == "subscribe" }["rcount"]
  rescue
    0
  end
  @broadcast_count = begin
    @events.find { |t| t["name"] == "broadcast" }["rcount"]
  rescue
    0
  end
  @message_count = begin
    @events.find { |t| t["name"] == "message" }["rcount"]
  rescue
    0
  end

  @subscriptions_over_time = begin
    @events.find { |t| t["name"] == "subscribe" }["counts"]
  rescue
    []
  end
  @broadcasts_over_time = begin
    @events.find { |t| t["name"] == "broadcast" }["counts"]
  rescue
    []
  end
  @messages_over_time = begin
    @events.find { |t| t["name"] == "message" }["counts"]
  rescue
    []
  end
  @messages_over_time = @messages_over_time.collect.with_index { |msg, i| [msg[0], @broadcasts_over_time[i][1], msg[1]] }

  @top_subscribed_channels = @lm.keys_summaries(@topic, "subscribe", @resolution, @order, @dir, @search, @step * @count).first(8)
  @top_messaged_channels = @lm.keys_summaries(@topic, "message", @resolution, @order, @dir, @search, @step * @count).first(8)
  render :litecable
end

#litecache ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 90

def litecache
  @order ||= "rcount"
  @topic = "Litecache"
  @events = @lm.events_summaries(@topic, @resolution, @order, @dir, @search, @step * @count)
  @events.each do |event|
    data_points = @lm.event_data_points(@step, @count, @resolution, @topic, event["name"])
    event["counts"] = data_points.collect { |r| [r["rtime"], r["rcount"]] }
    event["values"] = data_points.collect { |r| [r["rtime"], r["ravg"]] }
  end
  @snapshot = read_snapshot(@topic)
  @size = begin
    @snapshot[0][:summary][:size]
  rescue
    0
  end
  @max_size = begin
    @snapshot[0][:summary][:max_size]
  rescue
    0
  end
  @full = begin
    (@size / @max_size) * 100
  rescue
    0
  end
  @entries = begin
    @snapshot[0][:summary][:entries]
  rescue
    0
  end
  @gets = @events.find { |t| t["name"] == "get" }
  @sets = @events.find { |t| t["name"] == "set" }
  @reads = begin
    @gets["rcount"]
  rescue
    0
  end
  @writes = begin
    @sets["rcount"]
  rescue
    0
  end
  @hitrate = begin
    @gets["ravg"]
  rescue
    0
  end
  @hits = @reads * @hitrate
  @misses = @reads - @hits
  @reads_vs_writes = begin
    @gets["counts"].collect.with_index { |obj, i| obj.clone << @sets["counts"][i][1] }
  rescue
    []
  end
  @hits_vs_misses = begin
    @gets["values"].collect.with_index { |obj, i| [obj[0], obj[1].to_f * @gets["counts"][i][1].to_f, (1 - obj[1].to_f) * @gets["counts"][i][1].to_f] }
  rescue
    []
  end
  @top_reads = @lm.keys_summaries(@topic, "get", @resolution, @order, @dir, nil, @step * @count).first(8)
  @top_writes = @lm.keys_summaries(@topic, "set", @resolution, @order, @dir, nil, @step * @count).first(8)
  render :litecache
end

#litedb ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 154

def litedb
  @order ||= "rcount"
  @topic = "Litedb"
  @events = @lm.events_summaries(@topic, @resolution, @order, @dir, @search, @step * @count)
  @events.each do |event|
    data_points = @lm.event_data_points(@step, @count, @resolution, @topic, event["name"])
    event["counts"] = data_points.collect { |r| [r["rtime"], r["rcount"] || 0] }
    event["values"] = data_points.collect { |r| [r["rtime"], r["rtotal"] || 0] }
  end
  @snapshot = read_snapshot(@topic)
  @size = begin
    @snapshot[0][:summary][:size]
  rescue
    0
  end
  @tables = begin
    @snapshot[0][:summary][:tables]
  rescue
    0
  end
  @indexes = begin
    @snapshot[0][:summary][:indexes]
  rescue
    0
  end
  @gets = @events.find { |t| t["name"] == "Read" }
  @sets = @events.find { |t| t["name"] == "Write" }
  @reads = begin
    @gets["rcount"]
  rescue
    0
  end
  @writes = begin
    @sets["rcount"]
  rescue
    0
  end
  @time = begin
    @gets["ravg"]
  rescue
    0
  end
  @reads_vs_writes = begin
    @gets["counts"].collect.with_index { |obj, i| obj.clone << @sets["counts"][i][1] }
  rescue
    []
  end
  @reads_vs_writes_times = begin
    @gets["values"].collect.with_index { |obj, i| [obj[0], obj[1], @sets["values"][i][1].to_f] }
  rescue
    []
  end
  @read_times = begin
    @gets["rtotal"]
  rescue
    0
  end
  @write_times = begin
    @sets["rtotal"]
  rescue
    0
  end
  @slowest = @lm.keys_summaries(@topic, "Read", @resolution, "ravg", "desc", nil, @step * @count).first(8)
  @slowest += @lm.keys_summaries(@topic, "Write", @resolution, "ravg", "desc", nil, @step * @count).first(8)
  @slowest = @slowest.sort_by { |a| a["ravg"] }.last(8).reverse
  @popular = @lm.keys_summaries(@topic, "Read", @resolution, "rtotal", "desc", nil, @step * @count).first(8)
  @popular += @lm.keys_summaries(@topic, "Write", @resolution, "rtotal", "desc", nil, @step * @count).first(8)
  @popular = @popular.sort_by { |a| a["rtotal"] }.last(8).reverse
  render :litedb
end

#litejob ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 225

def litejob
  @order ||= "rcount"
  @topic = "Litejob"
  @events = @lm.events_summaries(@topic, @resolution, @order, @dir, @search, @step * @count)
  @events.each do |event|
    data_points = @lm.event_data_points(@step, @count, @resolution, @topic, event["name"])
    event["counts"] = data_points.collect { |r| [r["rtime"], r["rcount"] || 0] }
    event["values"] = data_points.collect { |r| [r["rtime"], r["rtotal"] || 0] }
  end
  @snapshot = read_snapshot(@topic)
  @size = begin
    @snapshot[0][:summary][:size]
  rescue
    0
  end
  @jobs = begin
    @snapshot[0][:summary][:jobs]
  rescue
    0
  end
  @queues = begin
    @snapshot[0][:queues]
  rescue
    {}
  end
  @processed_jobs = @events.find { |e| e["name"] == "perform" }
  @processed_count = begin
    @processed_jobs["rcount"]
  rescue
    0
  end
  @processing_time = begin
    @processed_jobs["rtotal"]
  rescue
    0
  end
  keys_summaries = @lm.keys_summaries(@topic, "perform", @resolution, "rcount", "desc", nil, @step * @count)
  @processed_count_by_queue = keys_summaries.collect { |r| [r["key"], r["rcount"]] }
  @processing_time_by_queue = keys_summaries.collect { |r| [r["key"], r["rtotal"]] } # .sort{|r1, r2| r1['rtotal'] > r2['rtotal'] }
  @processed_count_over_time = begin
    @events.find { |e| e["name"] == "perform" }["counts"]
  rescue
    []
  end
  @processing_time_over_time = begin
    @events.find { |e| e["name"] == "perform" }["values"]
  rescue
    []
  end
  @processed_count_over_time_by_queues = []
  @processing_time_over_time_by_queues = []
  keys = ["Time"]
  keys_summaries.each_with_index do |summary, i|
    key = summary["key"]
    keys << key
    data_points = @lm.key_data_points(@step, @count, @resolution, @topic, "perform", key)
    if i == 0
      data_points.each do |dp|
        @processed_count_over_time_by_queues << [dp["rtime"]]
        @processing_time_over_time_by_queues << [dp["rtime"]]
      end
    end
    data_points.each_with_index do |dp, j|
      @processed_count_over_time_by_queues[j] << (dp["rcount"] || 0)
      @processing_time_over_time_by_queues[j] << (dp["rtotal"] || 0)
    end
  end
  @processed_count_over_time_by_queues.unshift(keys)
  @processing_time_over_time_by_queues.unshift(keys)
  render :litejob
end

#params(key) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 43

def params(key)
  URI.decode_uri_component(@params[key].to_s)
end

#round(float) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 388

def round(float)
  return 0 unless float.is_a? Numeric
  (float * 100).round.to_f / 100
end

#sorted?(field) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/litestack/liteboard/liteboard.rb', line 369

def sorted?(field)
  @order == field
end

#topic_sort_url(field) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 356

def topic_sort_url(field)
  "/topics/#{encode(@topic)}?#{compose_query(field)}"
end

#topic_url(topic) ⇒ Object 



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# File 'lib/litestack/liteboard/liteboard.rb', line 348

def topic_url(topic)
  "/topics/#{encode(topic)}?res=#{@res}&order=#{@order}&dir=#{@dir}&search=#{@search}"
end