Module: ActionSubscriber::Bunny::Subscriber

Includes:
Logging
Included in:
RouteSet
Defined in:
lib/action_subscriber/bunny/subscriber.rb

Instance Method Summary collapse

Methods included from Logging

initialize_logger, logger, #logger, logger=

Instance Method Details

#bunny_consumers ⇒ Object 



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# File 'lib/action_subscriber/bunny/subscriber.rb', line 6

def bunny_consumers
  @bunny_consumers ||= []
end

#cancel_consumers! ⇒ Object 



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# File 'lib/action_subscriber/bunny/subscriber.rb', line 10

def cancel_consumers!
  bunny_consumers.each(&:cancel)
  ::ActionSubscriber::ThreadPools.threadpools.each do |name, threadpool|
    threadpool.shutdown
  end
end

#setup_subscriptions! ⇒ Object 



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# File 'lib/action_subscriber/bunny/subscriber.rb', line 17

def setup_subscriptions!
  fail ::RuntimeError, "you cannot setup queues multiple times, this should only happen once at startup" unless subscriptions.empty?
  routes.each do |route|
    subscriptions << {
      :route => route,
      :queue => setup_queue(route),
    }
  end
end

#start_subscribers! ⇒ Object 



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# File 'lib/action_subscriber/bunny/subscriber.rb', line 27

def start_subscribers!
  subscriptions.each do |subscription|
    route = subscription[:route]
    queue = subscription[:queue]
    channel = queue.channel
    threadpool = ::ActionSubscriber::ThreadPools.threadpools.fetch(route.threadpool_name)
    channel.prefetch(route.prefetch) if route.acknowledgements?
    consumer = ::Bunny::Consumer.new(channel, queue, channel.generate_consumer_tag, !route.acknowledgements?)
    consumer.on_delivery do |delivery_info, properties, encoded_payload|
      ::ActiveSupport::Notifications.instrument "received_event.action_subscriber", :payload_size => encoded_payload.bytesize, :queue => queue.name
      properties = {
        :action => route.action,
        :channel => queue.channel,
        :content_type => properties.content_type,
        :delivery_tag => delivery_info.delivery_tag,
        :exchange => delivery_info.exchange,
        :headers => properties.headers,
        :message_id => properties.message_id,
        :routing_key => delivery_info.routing_key,
        :queue => queue.name,
        :uses_acknowledgements => route.acknowledgements?,
      }
      env = ::ActionSubscriber::Middleware::Env.new(route.subscriber, encoded_payload, properties)
      run_env(env, threadpool)
    end
    bunny_consumers << consumer
    queue.subscribe_with(consumer)
  end
end