Method: Worker::Queue#run

Defined in:
lib/worker/queue.rb

#run(number_to_run = nil) ⇒ Object



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# File 'lib/worker/queue.rb', line 95

def run(number_to_run=nil)
  begin
    while true

      logger.debug("Polling")

      t1 = Time.now
      failures = 0
      successes = 0

      dequeue.each do |item|

        if number_to_run
          number_to_run -= 1
        end

        logger.info("Performing #{item[:job_class]}.#{item[:id]} attempts=#{item[:attempts]} priority=#{item[:priority]} run_at=#{item[:run_at]}")

        job = nil
        begin
          job = eval(item[:job_class]).deserialize(item[:handler])

          Timeout::timeout(max_job_time) do
            job.before
            job.perform
            job.on_success
          end

          remove(item[:id])

          successes += 1
          logger.info("Successful #{item[:job_class]}.#{item[:id]}")

        rescue Exception => e

          job.on_failure if job

          if item[:attempts] + 1 > max_attempts
            remove(item[:id])
          else
            set_error(item, e)
          end

          failures += 1
          logger.info("Failed #{item[:job_class]}.#{item[:id]} err: #{e.class.name} #{e.message}")
          if log_backtrace
            puts e.backtrace
          end

        end
      end

      t2 = Time.now

      if failures + successes > 0
        logger.info("Performed #{failures + successes} jobs in #{t2 - t1} seconds")
      end

      return if number_to_run && number_to_run <= 0
      sleep(poll_interval)
    end
  rescue StandardError => e
    logger.warn("Exiting due to #{e}")
    return
  ensure
    logger.info("Unlocking")
    unlock_all
  end

end