Class: ElasticAPM::Subscriber Private

Inherits:
Object
  • Object
show all
Includes:
Logging
Defined in:
lib/elastic_apm/subscriber.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.

Defined Under Namespace

Classes: Notification

Constant Summary

Constants included from Logging

Logging::LEVELS, Logging::PREFIX

Instance Method Summary collapse

Methods included from Logging

#debug, #error, #fatal, #info, #warn

Constructor Details

#initialize(agent) ⇒ Subscriber

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 a new instance of Subscriber.



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# File 'lib/elastic_apm/subscriber.rb', line 28

def initialize(agent)
  @agent = agent
  @normalizers = Normalizers.build(agent.config)
end

Instance Method Details

#finish(name, id, payload) ⇒ 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.

rubocop:disable Metrics/CyclomaticComplexity



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# File 'lib/elastic_apm/subscriber.rb', line 73

def finish(name, id, payload)
  # debug "AS::Notification#finish:#{name}:#{id}"
  return unless (transaction = @agent.current_transaction)

  while (notification = transaction.notifications.pop)
    next unless notification.id == id

    if (span = notification.span)
      if @agent.config.span_frames_min_duration?
        span.original_backtrace ||= @normalizers.backtrace(name, payload)
      end
      @agent.end_span if span == @agent.current_span
    end
    return
  end
end

#register! ⇒ 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/elastic_apm/subscriber.rb', line 33

def register!
  unregister! if @subscription

  @subscription =
    ActiveSupport::Notifications.subscribe(notifications_regex, self)
end

#start(name, id, payload) ⇒ 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/elastic_apm/subscriber.rb', line 49

def start(name, id, payload)
  return unless (transaction = @agent.current_transaction)

  normalized = @normalizers.normalize(transaction, name, payload)

  span =
    if normalized == :skip
      nil
    else
      name, type, subtype, action, context = normalized

      @agent.start_span(
        name,
        type,
        subtype: subtype,
        action: action,
        context: context
      )
    end

  transaction.notifications << Notification.new(id, span)
end

#unregister! ⇒ 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/elastic_apm/subscriber.rb', line 40

def unregister!
  ActiveSupport::Notifications.unsubscribe @subscription
  @subscription = nil
end