messaging_stats_service.rb

class MessagingStatsService
  include TorqueBox::Injectors
  def start
    Thread.new do
      until @done
        queues.each do |queue|
          counter = org.hornetq.api.core.management.MessageCounterInfo.from_json(queue.list_message_counter)
          puts "Queue #{queue.name} count: #{counter.count} countDelta: #{counter.count_delta} depth: #{counter.depth} depth_delta: #{counter.depth_delta}"
          sleep 10
        end
      end
    end
  end
  
  def stop
    @done = true
  end

  def queues
    management_service.getResources(org.hornetq.jms.management.impl.JMSQueueControlImpl.java_class)
  end

  def management_service
    hornetq_server.management_service
  end

  def hornetq_server
    @hornetq_server ||= fetch('jboss.messaging.default')
  end
end

Updated to work on 2.3.2