Class: ScoutApm::Instruments::ActionControllerRails3Rails4

Inherits:
Object
  • Object
show all
Defined in:
lib/scout_apm/instruments/action_controller_rails_3_rails4.rb

Overview

instrumentation for Rails 3 and Rails 4 is the same.

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/scout_apm/instruments/action_controller_rails_3_rails4.rb', line 5

def logger
  @logger
end

Instance Method Details

#initalize(logger = ScoutApm::Agent.instance.logger) ⇒ Object 



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# File 'lib/scout_apm/instruments/action_controller_rails_3_rails4.rb', line 7

def initalize(logger=ScoutApm::Agent.instance.logger)
  @logger = logger
  @installed = false
end

#install ⇒ Object 



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# File 'lib/scout_apm/instruments/action_controller_rails_3_rails4.rb', line 16

def install
  @installed = true

  # We previously instrumented ActionController::Metal, which missed
  # before and after filter timing. Instrumenting Base includes those
  # filters, at the expense of missing out on controllers that don't use
  # the full Rails stack.
  if defined?(::ActionController) && defined?(::ActionController::Base)
    ScoutApm::Agent.instance.logger.info "Instrumenting ActionController::Base"
    ::ActionController::Base.class_eval do
      # include ScoutApm::Tracer
      include ScoutApm::Instruments::ActionControllerRails3Rails4Instruments
    end
  end

  if defined?(::ActionView) && defined?(::ActionView::PartialRenderer)
    ScoutApm::Agent.instance.logger.info "Instrumenting ActionView::PartialRenderer"
    ::ActionView::PartialRenderer.class_eval do
      include ScoutApm::Tracer

      instrument_method :render_partial,
        :type => "View",
        :name => '#{@template.virtual_path rescue "Unknown Partial"}/Rendering',
        :scope => true

      instrument_method :collection_with_template,
        :type => "View",
        :name => '#{@template.virtual_path rescue "Unknown Collection"}/Rendering',
        :scope => true
    end

    ScoutApm::Agent.instance.logger.info "Instrumenting ActionView::TemplateRenderer"
    ::ActionView::TemplateRenderer.class_eval do
      include ScoutApm::Tracer
      instrument_method :render_template,
        :type => "View",
        :name => '#{args[0].virtual_path rescue "Unknown"}/Rendering',
        :scope => true
    end
  end
end

#installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/scout_apm/instruments/action_controller_rails_3_rails4.rb', line 12

def installed?
  @installed
end