Class: Rack::Insight::SpeedTracer::Panel

Inherits:
Panel
  • Object
show all
Defined in:
lib/rack/insight/panels/speedtracer_panel.rb

Overview

TODO Refactor this class name… TODO: Fix indentation of this class. TODO: Update this class to Rack::Insight pattern.

Instance Attribute Summary

Attributes inherited from Panel

#request

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Panel

#after, #after_detect, #before, #bool_prop, #camelized_name, #content, current_panel_file, excluded, file_index, from_file, #handle_error_for, #has_content?, #has_custom_probes?, has_table, #has_table?, #heading_for_request, inherited, #inspect, #is_magic?, #is_probing?, #name, #panel_app, panel_exclusion, #render, set_sub_class_template_root, #underscored_name

Methods included from Database::EigenClient

included

Methods included from Instrumentation::EigenClient

included

Methods included from Logging

logger, verbose, verbosity

Methods included from Instrumentation::Client

#after_detect, #before_detect, #probe, #request_finish, #request_start

Methods included from Database::RequestDataClient

#count, #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) ⇒ Panel

Returns a new instance of Panel.



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# File 'lib/rack/insight/panels/speedtracer_panel.rb', line 17

def initialize(app)
  @app = app
  @uuid = UUIDTools::UUID.random_create.to_s
  table_setup("speedtracer", "uuid")
  key_sql_template("'%s'")

  @tracer = Tracer.new(@table)
  probe(@tracer) do
    instrument("ActiveSupport::Notifications") do
      class_probe :instrument
    end

    instrument("ActionView::Rendering") do
      instance_probe :render
    end

    instrument("ActionView::Helpers::RecordTagHelper") do
      instance_probe :content_tag_for
    end

    instrument("ActionView::Partials::PartialRenderer") do
      instance_probe :render, :find_template, :render_collection, :collection_with_template, :collection_without_template, :partial_path, :collection_paths
    end

    instrument("ActionView::Template") do
      instance_probe :render, :compile
    end

    instrument("ActiveRecord::Base") do
      class_probe :find, :find_by_sql, :all, :first, :last, :count, :delete_all
      instance_probe :save, :save!, :destroy, :delete
    end

    instrument("ActionController::Base") do
      instance_probe :process, :render
    end
  end

  super
end

Class Method Details

.panel_mappings ⇒ Object 



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# File 'lib/rack/insight/panels/speedtracer_panel.rb', line 67

def self.panel_mappings
  { "speedtracer" => TraceApp.new }
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/insight/panels/speedtracer_panel.rb', line 58

def call(env)
  env['rack-insight.speedtracer-id'] = @uuid

  status, headers, body = @app.call(env)
  store(env, env['rack-insight.speedtracer-id'], env['rack-insight.speedtracer-record'])
  headers['X-TraceUrl'] = '__insight__/speedtracer?id=' + env['rack-insight.speedtracer-id']
  return [status, headers, body]
end

#content_for_request(request_id) ⇒ Object 



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# File 'lib/rack/insight/panels/speedtracer_panel.rb', line 75

def content_for_request(request_id)
trace = retrieve(request_id).first
return "" if trace.nil?
advice = []
if not defined?(Yajl)
  advice << "yajl-ruby not installed - Speedtracer server events won't be available"
end
render_template "panels/speedtracer/traces", :trace => trace, :advice => advice
end

#heading ⇒ Object 



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# File 'lib/rack/insight/panels/speedtracer_panel.rb', line 71

def heading
  "#{table_length} traces"
end