ActionController::Instrumentation

Adds instrumentation to several ends in ActionController::Base. It also provides some hooks related with process_action. This allows an ORM like Active Record and/or DataMapper to plug in ActionController and show related information.

Check ActiveRecord::Railties::ControllerRuntime for an example.

Namespace
Methods
P
R
S
Instance Public methods
process_action(*args)
# File actionpack/lib/action_controller/metal/instrumentation.rb, line 17
def process_action(*args)
  raw_payload = {
    controller: self.class.name,
    action: action_name,
    params: request.filtered_parameters,
    headers: request.headers,
    format: request.format.ref,
    method: request.request_method,
    path: request.fullpath
  }

  ActiveSupport::Notifications.instrument("start_processing.action_controller", raw_payload.dup)

  ActiveSupport::Notifications.instrument("process_action.action_controller", raw_payload) do |payload|
    begin
      result = super
      payload[:status] = response.status
      result
    ensure
      append_info_to_payload(payload)
    end
  end
end
redirect_to(*args)
# File actionpack/lib/action_controller/metal/instrumentation.rb, line 62
def redirect_to(*args)
  ActiveSupport::Notifications.instrument("redirect_to.action_controller") do |payload|
    result = super
    payload[:status]   = response.status
    payload[:location] = response.filtered_location
    result
  end
end
render(*args)
# File actionpack/lib/action_controller/metal/instrumentation.rb, line 41
def render(*args)
  render_output = nil
  self.view_runtime = cleanup_view_runtime do
    Benchmark.ms { render_output = super }
  end
  render_output
end
send_data(data, options = {})
# File actionpack/lib/action_controller/metal/instrumentation.rb, line 56
def send_data(data, options = {})
  ActiveSupport::Notifications.instrument("send_data.action_controller", options) do
    super
  end
end
send_file(path, options = {})
# File actionpack/lib/action_controller/metal/instrumentation.rb, line 49
def send_file(path, options = {})
  ActiveSupport::Notifications.instrument("send_file.action_controller",
    options.merge(path: path)) do
    super
  end
end