Class: Insight::CachePanel

Inherits:
Panel
  • Object
show all
Defined in:
lib/insight/panels/cache_panel.rb,
lib/insight/panels/cache_panel/stats.rb,
lib/insight/panels/cache_panel/panel_app.rb

Defined Under Namespace

Classes: PanelApp, Stats

Instance Attribute Summary

Attributes inherited from Panel

#request

Instance Method Summary collapse

Methods inherited from Panel

#after, #before, #call, current_panel_file, excluded, file_index, from_file, #has_content?, inherited, panel_exclusion, panel_mappings, #render

Methods included from Instrumentation::Client

#before_detect, #probe

Methods included from Logging

logger

Methods included from Database::RequestDataClient

#key_sql_template, #retrieve, #store, #table_length, #table_setup

Methods included from Render

#compile, #compile!, #compiled_source, #method_name, #method_name_without_locals, #render_template, #signed_params

Constructor Details

#initialize(app) ⇒ CachePanel

Returns a new instance of CachePanel.



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# File 'lib/insight/panels/cache_panel.rb', line 8

def initialize(app)
  super

  probe(self) do
    instrument("Memcached") do
      instance_probe :decrement, :get, :increment, :set, :add,
        :replace, :delete, :prepend, :append
    end

    instrument("MemCache") do
      instance_probe :decr, :get, :get_multi, :incr, :set, :add, :delete
    end

    instrument("Dalli::Client") do
      instance_probe :perform
    end
  end

  table_setup("cache")
end

Instance Method Details

#after_detect(method_call, timing, args, result) ⇒ Object 



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# File 'lib/insight/panels/cache_panel.rb', line 38

def after_detect(method_call, timing, args, result)
  method, key = method_call.method, args.first
  if(defined? Dalli and Dalli::Client === method_call.object)
    method, key = args[0], args[1]
  end
  logger.info{ "Cache panel got #{method} #{key.inspect}" }
  @stats.record_call(method, timing.duration, !result.nil?, key)
end

#content_for_request(number) ⇒ Object 



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# File 'lib/insight/panels/cache_panel.rb', line 61

def content_for_request(number)
  logger.debug{{ :req_num => number }}
  stats = retreive(number).first
  render_template "panels/cache", :stats => stats
end

#heading_for_request(number) ⇒ Object 



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# File 'lib/insight/panels/cache_panel.rb', line 55

def heading_for_request(number)
  stats = retreive(number).first

  "Cache: %.2fms (#{stats.queries.size} calls)" % stats.time
end

#name ⇒ Object 



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# File 'lib/insight/panels/cache_panel.rb', line 51

def name
  "cache"
end

#panel_app ⇒ Object 



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# File 'lib/insight/panels/cache_panel.rb', line 47

def panel_app
  PanelApp.new
end

#request_finish(env, st, hd, bd, timing) ⇒ Object 



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# File 'lib/insight/panels/cache_panel.rb', line 33

def request_finish(env, st, hd, bd, timing)
  logger(env).debug{ "Stats: #@stats" }
  store(env, @stats)
end

#request_start(env, start) ⇒ Object 



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# File 'lib/insight/panels/cache_panel.rb', line 29

def request_start(env, start)
  @stats = Stats.new
end