Class: HotBunnies::Queue::BlockingCallbackConsumer

Inherits:
CallbackConsumer show all
Includes:
JavaConcurrent
Defined in:
lib/hot_bunnies/queue.rb

Instance Method Summary collapse

Methods inherited from CallbackConsumer

#callback

Methods inherited from BaseConsumer

#cancel, #handleCancel, #handleCancelOk, #handleDelivery

Constructor Details

#initialize(channel, buffer_size, callback) ⇒ BlockingCallbackConsumer

Returns a new instance of BlockingCallbackConsumer.



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# File 'lib/hot_bunnies/queue.rb', line 221

def initialize(channel, buffer_size, callback)
  super(channel, callback)
  if buffer_size
    @internal_queue = ArrayBlockingQueue.new(buffer_size)
  else
    @internal_queue = LinkedBlockingQueue.new
  end
end

Instance Method Details

#deliver(*pair) ⇒ Object 



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# File 'lib/hot_bunnies/queue.rb', line 248

def deliver(*pair)
  if @cancelling || @cancelled || JavaConcurrent::Thread.current_thread.interrupted?
    @internal_queue.offer(pair)
  else
    begin
      @internal_queue.put(pair)
    rescue InterruptedException => e
      JavaConcurrent::Thread.current_thread.interrupt
    end
  end
end

#start ⇒ Object 



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# File 'lib/hot_bunnies/queue.rb', line 230

def start
  interrupted = false
  until @cancelled || JavaConcurrent::Thread.current_thread.interrupted?
    begin
      pair = @internal_queue.take
      callback(*pair) if pair
    rescue InterruptedException => e
      interrupted = true
    end
  end
  while (pair = @internal_queue.poll)
    callback(*pair)
  end
  if interrupted
    JavaConcurrent::Thread.current_thread.interrupt
  end
end