105 lines
3.1 KiB
Ruby
105 lines
3.1 KiB
Ruby
# frozen_string_literal: true
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require "benchmark"
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require "abstract_controller/logger"
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module ActionController
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# Adds instrumentation to several ends in ActionController::Base. It also provides
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# some hooks related with process_action. This allows an ORM like Active Record
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# and/or DataMapper to plug in ActionController and show related information.
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#
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# Check ActiveRecord::Railties::ControllerRuntime for an example.
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module Instrumentation
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extend ActiveSupport::Concern
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include AbstractController::Logger
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attr_internal :view_runtime
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def process_action(*args)
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raw_payload = {
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controller: self.class.name,
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action: action_name,
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params: request.filtered_parameters,
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headers: request.headers,
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format: request.format.ref,
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method: request.request_method,
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path: request.fullpath
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}
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ActiveSupport::Notifications.instrument("start_processing.action_controller", raw_payload.dup)
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ActiveSupport::Notifications.instrument("process_action.action_controller", raw_payload) do |payload|
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super.tap do
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payload[:status] = response.status
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end
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ensure
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append_info_to_payload(payload)
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end
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end
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def render(*args)
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render_output = nil
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self.view_runtime = cleanup_view_runtime do
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Benchmark.ms { render_output = super }
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end
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render_output
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end
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def send_file(path, options = {})
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ActiveSupport::Notifications.instrument("send_file.action_controller",
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options.merge(path: path)) do
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super
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end
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end
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def send_data(data, options = {})
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ActiveSupport::Notifications.instrument("send_data.action_controller", options) do
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super
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end
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end
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def redirect_to(*args)
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ActiveSupport::Notifications.instrument("redirect_to.action_controller") do |payload|
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result = super
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payload[:status] = response.status
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payload[:location] = response.filtered_location
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result
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end
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end
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private
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# A hook invoked every time a before callback is halted.
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def halted_callback_hook(filter)
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ActiveSupport::Notifications.instrument("halted_callback.action_controller", filter: filter)
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end
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# A hook which allows you to clean up any time, wrongly taken into account in
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# views, like database querying time.
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#
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# def cleanup_view_runtime
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# super - time_taken_in_something_expensive
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# end
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def cleanup_view_runtime # :doc:
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yield
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end
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# Every time after an action is processed, this method is invoked
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# with the payload, so you can add more information.
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def append_info_to_payload(payload) # :doc:
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payload[:view_runtime] = view_runtime
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end
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module ClassMethods
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# A hook which allows other frameworks to log what happened during
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# controller process action. This method should return an array
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# with the messages to be added.
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def log_process_action(payload) #:nodoc:
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messages, view_runtime = [], payload[:view_runtime]
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messages << ("Views: %.1fms" % view_runtime.to_f) if view_runtime
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messages
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end
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end
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end
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end
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