Class: Dionysus::Producer::Outbox::Publisher

Inherits:
Object
  • Object
show all
Defined in:
lib/dionysus/producer/outbox/publisher.rb

Instance Method Summary collapse

Constructor Details

#initialize(config:) ⇒ Publisher

Returns a new instance of Publisher.



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# File 'lib/dionysus/producer/outbox/publisher.rb', line 7

def initialize(config:)
  @config = config
end

Instance Method Details

#publish(outbox_record, options = {}) ⇒ Object 



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# File 'lib/dionysus/producer/outbox/publisher.rb', line 11

def publish(outbox_record, options = {})
  return if Dionysus::Producer::Suppressor.suppressed?

  with_consistent_reads do
    instrument("publishing_with_dionysus") do
      resource_class = outbox_record.resource_class.constantize
      primary_key = resource_class.primary_key
      primary_key_value = outbox_record.resource_id
      topic = outbox_record.topic
      resource = resource_class.find_by(primary_key => primary_key_value) ||
        resource_class.new(primary_key => primary_key_value)
      event_name = outbox_record.event_name
      if resource.new_record? && outbox_record.created_event?
        logger.error(
          "Attempted to publish #{resource.class}, id: #{resource.id} but it was deleted, that should never happen!"
        )
        return
      end

      if resource.new_record? && outbox_record.updated_event?
        logger.error(
          "There was an update of #{resource.class}, id: #{resource.id} but it was deleted, that should never happen!"
        )
        return
      end

      published_count = publish_for_top_level_resource(outbox_record, resource, event_name, topic, options) +
        publish_for_dependency(resource, topic, options)
      handle_nothing_published(resource, event_name, topic) if published_count.zero?
      published_count
    end
  end
end

#publish_observers(outbox_record) ⇒ Object 



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# File 'lib/dionysus/producer/outbox/publisher.rb', line 45

def publish_observers(outbox_record)
  return if Dionysus::Producer::Suppressor.suppressed?

  with_consistent_reads do
    instrument("publishing_observers_with_dionysus") do
      resource_class = outbox_record.resource_class.constantize
      primary_key = resource_class.primary_key
      primary_key_value = outbox_record.resource_id
      resource = resource_class.find_by(primary_key => primary_key_value) ||
        resource_class.new(primary_key => primary_key_value)
      changeset = outbox_record.transformed_changeset

      Dionysus::Producer.observers_with_responders_for(resource,
        changeset).each do |observers, responder|
        if observers.count > config.observers_inline_maximum_size
          execute_genesis_for_observers(observers, responder)
        else
          observers.each { |observer_record| publish_observer(observer_record, responder) }
        end
      end
    end
  end
end