Class: RailsVitals::Middleware::PanelInjector

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_vitals/middleware/panel_injector.rb

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ PanelInjector

Returns a new instance of PanelInjector.



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# File 'lib/rails_vitals/middleware/panel_injector.rb', line 4

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rails_vitals/middleware/panel_injector.rb', line 8

def call(env)
  Thread.current[:rails_vitals_path] = env["PATH_INFO"]
  RailsVitals::Collector.current = RailsVitals::Collector.new

  status, headers, response = @app.call(env)

  return [ status, headers, response ] unless injectable?(headers, env)

  collector = RailsVitals::Collector.current
  scorer = Scorers::CompositeScorer.new(collector)
  record = RequestRecord.new(collector: collector, scorer: scorer)

  RailsVitals.store.push(record) if RailsVitals.config.store_enabled

  body = extract_body(response)
  body = inject_panel(body, collector, scorer)

  headers["Content-Length"] = body.bytesize.to_s

  [ status, headers, [ body ] ]
ensure
  Thread.current[:rails_vitals_own_request] = nil
  RailsVitals::Collector.reset!
end