Class: OneApm::Agent::Instrumentation::ActionViewSubscriber

Inherits:
EventedSubscriber show all
Defined in:
lib/one_apm/inst/rails4/action_view_subscriber.rb

Defined Under Namespace

Classes: RenderEvent

Instance Method Summary collapse

Methods inherited from EventedSubscriber

#event_stack, #initialize, #log_notification_error, #pop_event, #push_event, subscribe, subscribed?

Constructor Details

This class inherits a constructor from OneApm::Agent::Instrumentation::EventedSubscriber

Instance Method Details

#finish(name, id, payload) ⇒ Object 



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# File 'lib/one_apm/inst/rails4/action_view_subscriber.rb', line 24

def finish(name, id, payload)
  event = pop_event(id)

  state = OneApm::TransactionState.tl_get

  if state.is_execution_traced? && event.recordable?
    stack = state.traced_method_stack
    frame = stack.pop_frame(state, event.frame, event.metric_name, event.end)
    record_metrics(event, frame)
  end
rescue => e
  log_notification_error(e, name, 'finish')
end

#record_metrics(event, frame) ⇒ Object 



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# File 'lib/one_apm/inst/rails4/action_view_subscriber.rb', line 38

def record_metrics(event, frame)
  exclusive = event.duration - frame.children_time
  OneApm::Manager.agent.stats_engine.tl_record_scoped_and_unscoped_metrics(
    event.metric_name, nil, event.duration, exclusive)
end

#start(name, id, payload) ⇒ Object 



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# File 'lib/one_apm/inst/rails4/action_view_subscriber.rb', line 10

def start(name, id, payload)
  event = RenderEvent.new(name, Time.now, nil, id, payload)
  push_event(event)

  state = OneApm::TransactionState.tl_get

  if state.is_execution_traced? && event.recordable?
    stack = state.traced_method_stack
    event.frame = stack.push_frame(state, :action_view, event.time)
  end
rescue => e
  log_notification_error(e, name, 'start')
end