Class: Upperkut::Processor

Inherits:
Object
  • Object
show all
Defined in:
lib/upperkut/processor.rb

Instance Method Summary collapse

Constructor Details

#initialize(worker, logger = Logging.logger) ⇒ Processor

Returns a new instance of Processor.



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# File 'lib/upperkut/processor.rb', line 5

def initialize(worker, logger = Logging.logger)
  @worker = worker
  @strategy = worker.strategy
  @worker_instance = worker.new
  @logger = logger
end

Instance Method Details

#blocking_process ⇒ Object 



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# File 'lib/upperkut/processor.rb', line 43

def blocking_process
  sleeping_time = 0

  loop do
    break if @stopped

    if @strategy.process?
      sleeping_time = 0
      process
      next
    end

    sleeping_time += sleep(@worker.setup.polling_interval)
    @logger.debug(sleeping_time: sleeping_time)
  end
end

#process ⇒ Object 



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# File 'lib/upperkut/processor.rb', line 12

def process
  items = @worker.fetch_items.freeze
  return unless items.any?

  @worker.server_middlewares.invoke(@worker, items) do
    @worker_instance.perform(items)
  end

  nacked_items, pending_ack_items = items.partition(&:nacked?)
  @strategy.nack(nacked_items) if nacked_items.any?
  @strategy.ack(pending_ack_items) if pending_ack_items.any?
rescue StandardError => error
  @logger.error(
    action: :handle_execution_error,
    ex: error.to_s,
    backtrace: error.backtrace.join("\n"),
    item_size: Array(items).size
  )

  if items
    if @worker_instance.respond_to?(:handle_error)
      @worker_instance.handle_error(error, items)
      return
    end

    @strategy.nack(items)
  end

  raise error
end

#stop ⇒ Object 



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# File 'lib/upperkut/processor.rb', line 60

def stop
  @stopped = true
end