Module: OpenTelemetry::Instrumentation::ActiveSupport

Defined in:
lib/opentelemetry/instrumentation/active_support.rb,
lib/opentelemetry/instrumentation/active_support/version.rb,
lib/opentelemetry/instrumentation/active_support/instrumentation.rb,
lib/opentelemetry/instrumentation/active_support/span_subscriber.rb

Overview

rubocop:disable Style/Documentation

Defined Under Namespace

Classes: Instrumentation, SpanSubscriber

Constant Summary collapse

VERSION =
'0.1.1'

Class Method Summary collapse

Class Method Details

.subscribe(tracer, pattern, notification_payload_transform = nil, disallowed_notification_payload_keys = []) ⇒ Object

A very hacky way to make sure that OpenTelemetry::Instrumentation::ActiveSupport::SpanSubscriber gets invoked first



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# File 'lib/opentelemetry/instrumentation/active_support/span_subscriber.rb', line 18

def self.subscribe( # rubocop:disable Metrics/AbcSize
  tracer,
  pattern,
  notification_payload_transform = nil,
  disallowed_notification_payload_keys = []
)
  subscriber = OpenTelemetry::Instrumentation::ActiveSupport::SpanSubscriber.new(
    name: pattern,
    tracer: tracer,
    notification_payload_transform: notification_payload_transform,
    disallowed_notification_payload_keys: disallowed_notification_payload_keys
  )

  subscriber_object = ::ActiveSupport::Notifications.subscribe(pattern, subscriber)
  ::ActiveSupport::Notifications.notifier.synchronize do
    if ::Rails::VERSION::MAJOR >= 6
      s = ::ActiveSupport::Notifications.notifier.instance_variable_get(:@string_subscribers)[pattern].pop
      ::ActiveSupport::Notifications.notifier.instance_variable_get(:@string_subscribers)[pattern].unshift(s)
    else
      s = ::ActiveSupport::Notifications.notifier.instance_variable_get(:@subscribers).pop
      ::ActiveSupport::Notifications.notifier.instance_variable_get(:@subscribers).unshift(s)
    end
  end
  subscriber_object
end