Class: Appsignal::Hooks::ActiveSupportNotificationsHook Private

Inherits:
Hook
  • Object
show all
Defined in:
lib/appsignal/hooks/active_support_notifications.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Instance Method Summary collapse

Methods inherited from Hook

#initialize, #installed?, register, #try_to_install

Constructor Details

This class inherits a constructor from Appsignal::Hooks::Hook

Instance Method Details

#dependencies_present? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/appsignal/hooks/active_support_notifications.rb', line 9

def dependencies_present?
  defined?(::ActiveSupport::Notifications::Instrumenter)
end

#install ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/appsignal/hooks/active_support_notifications.rb', line 13

def install
  ::ActiveSupport::Notifications.class_eval do
    def self.instrument(name, payload = {})
      # Don't check the notifier if any subscriber is listening:
      # AppSignal is listening
      instrumenter.instrument(name, payload) do
        yield payload if block_given?
      end
    end
  end

  require "appsignal/integrations/active_support_notifications"
  parent_integration_module = Appsignal::Integrations::ActiveSupportNotificationsIntegration

  if defined?(::ActiveSupport::Notifications::Fanout::Handle)
    install_module(
      parent_integration_module::StartFinishHandlerIntegration,
      ::ActiveSupport::Notifications::Fanout::Handle
    )
  else
    instrumenter = ::ActiveSupport::Notifications::Instrumenter

    if instrumenter.method_defined?(:start) && instrumenter.method_defined?(:finish)
      install_module(parent_integration_module::StartFinishIntegration, instrumenter)
    else
      install_module(parent_integration_module::InstrumentIntegration, instrumenter)
    end

    return unless instrumenter.method_defined?(:finish_with_state)

    install_module(parent_integration_module::FinishStateIntegration, instrumenter)
  end
end

#install_module(mod, instrumenter) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/appsignal/hooks/active_support_notifications.rb', line 47

def install_module(mod, instrumenter)
  instrumenter.send(:prepend, mod)
end