Java ProducerType.SINGLE屬性代碼示例

/**
 * create a disruptor
 *
 * @param name           The title of the disruptor
 * @param ringBufferSize The size of ringBuffer
 */
public void createDisruptor(String name, int ringBufferSize) {
    if (DISRUPTOR_MAP.keySet().contains(name)) {
        throw new NulsRuntimeException(ErrorCode.FAILED, "create disruptor faild,the name is repetitive!");
    }

    Disruptor<DisruptorEvent> disruptor = new Disruptor<DisruptorEvent>(EVENT_FACTORY,
            ringBufferSize, new NulsThreadFactory(ModuleService.getInstance().getModuleId(EventBusModuleBootstrap.class),name), ProducerType.SINGLE,
            new SleepingWaitStrategy());
    disruptor.handleEventsWith(new EventHandler<DisruptorEvent>() {
        @Override
        public void onEvent(DisruptorEvent disruptorEvent, long l, boolean b) throws Exception {
            Log.debug(disruptorEvent.getData() + "");
        }
    });
    DISRUPTOR_MAP.put(name, disruptor);
}
 

public DisruptorQueueImpl(String queueName, ProducerType producerType,
		int bufferSize, WaitStrategy wait) {
	this._queueName = PREFIX + queueName;
	_buffer = RingBuffer.create(producerType, new ObjectEventFactory(),
			bufferSize, wait);
	_consumer = new Sequence();
	_barrier = _buffer.newBarrier();
	_buffer.addGatingSequences(_consumer);
	if (producerType == ProducerType.SINGLE) {
		consumerStartedFlag = true;
	} else {
		// make sure we flush the pending messages in cache first
		if (bufferSize < 2) {
			throw new RuntimeException("QueueSize must >= 2");
		}
		try {
			publishDirect(FLUSH_CACHE, true);
		} catch (InsufficientCapacityException e) {
			throw new RuntimeException("This code should be unreachable!",
					e);
		}
	}
}
 

public DisruptorQueueImpl(String queueName, ProducerType producerType, int bufferSize, WaitStrategy wait) {
    this._queueName = PREFIX + queueName;
    _buffer = RingBuffer.create(producerType, new ObjectEventFactory(), bufferSize, wait);
    _consumer = new Sequence();
    _barrier = _buffer.newBarrier();
    _buffer.addGatingSequences(_consumer);
    if (producerType == ProducerType.SINGLE) {
        consumerStartedFlag = true;
    } else {
        // make sure we flush the pending messages in cache first
        if (bufferSize < 2) {
            throw new RuntimeException("QueueSize must >= 2");
        }
        try {
            publishDirect(FLUSH_CACHE, true);
        } catch (InsufficientCapacityException e) {
            throw new RuntimeException("This code should be unreachable!", e);
        }
    }
}
 

@Provides
@Singleton
@Named("disruptor")
@SuppressWarnings("Unchecked")
protected Disruptor<TwoPhaseEvent<T>> inputDisruptor(Provider<WorkHandler<TwoPhaseEvent<T>>> workHandlerProvider,
                                                     Provider<EventHandler<TwoPhaseEvent<T>>> evenHandlerProvider) {
    Disruptor<TwoPhaseEvent<T>> disruptor = new Disruptor<>(
            TwoPhaseEvent.factory(outputEventFactory()),
            options.ringSize(), threadsProvider,
            ProducerType.SINGLE, new SleepingWaitStrategy());
    WorkHandler<TwoPhaseEvent<T>>[] parsers = new WorkHandler[options.threads()];
    for (int i = 0; i < options.threads(); i++) {
        parsers[i] = workHandlerProvider.get();
    }
    disruptor.handleExceptionsWith(new FatalExceptionHandler());
    disruptor.handleEventsWithWorkerPool(parsers).then(evenHandlerProvider.get());
    return disruptor;
}
 

@Provides
@Singleton
@Named("firstPassDisruptor")
public Disruptor<TwoPhaseEvent<Void>> firstPassDisruptor(
        Provider<WorkHandler<TwoPhaseEvent<Void>>> statisticsHandlerProvider) {
    Disruptor<TwoPhaseEvent<Void>> disruptor = new Disruptor<>(
            TwoPhaseEvent.factory(() -> null),
            options.ringSize(), threadsProvider,
            ProducerType.SINGLE, new SleepingWaitStrategy());
    WorkHandler<TwoPhaseEvent<Void>>[] parsers = new WorkHandler[options.threads()];
    for (int i = 0; i < options.threads(); i++) {
        parsers[i] = statisticsHandlerProvider.get();
    }
    disruptor.handleExceptionsWith(new FatalExceptionHandler());
    disruptor.handleEventsWithWorkerPool(parsers);
    return disruptor;
}
 

@Provides
@Singleton
@Named("secondPassDisruptor")
public Disruptor<TwoPhaseEvent<SparseItem>> secondPassDisruptor(
        Provider<WorkHandler<TwoPhaseEvent<SparseItem>>> binningHandlerProvider,
        Provider<EventHandler<TwoPhaseEvent<SparseItem>>> outputHandlerProvider) {
    Disruptor<TwoPhaseEvent<SparseItem>> disruptor = new Disruptor<>(
            TwoPhaseEvent.factory(SparseItem::new),
            options.ringSize(), threadsProvider,
            ProducerType.SINGLE, new SleepingWaitStrategy());
    WorkHandler<TwoPhaseEvent<SparseItem>>[] parsers = new WorkHandler[options.threads()];
    for (int i = 0; i < options.threads(); i++) {
        parsers[i] = binningHandlerProvider.get();
    }
    disruptor.handleExceptionsWith(new FatalExceptionHandler());
    disruptor.handleEventsWithWorkerPool(parsers)
            .then(outputHandlerProvider.get());
    return disruptor;
}
 

public PersonHelper() {
    //參數1 事件
    //參數2 單線程使用
    //參數3 等待策略
    EventFactory<PersonEvent> eventFactory = PersonEvent.EVENT_FACTORY;
    ExecutorService executor = Executors.newSingleThreadExecutor();
    int ringBufferSize = 4; // RingBuffer 大小，必須是 2 的 N 次方；

    Disruptor<PersonEvent> disruptor = new Disruptor<>(eventFactory,
            ringBufferSize, executor, ProducerType.SINGLE,
            new YieldingWaitStrategy());

    ringBuffer = disruptor.getRingBuffer();
    //獲取生產者的位置信息
    sequenceBarrier = ringBuffer.newBarrier();
    //消費者
    handler = new PersonEventHandler();
    //事件處理器，監控指定ringBuffer,有數據時通知指定handler進行處理
    batchEventProcessor = new BatchEventProcessor<>(ringBuffer, sequenceBarrier, handler);
    //傳入所有消費者線程的序號
//        ringBuffer.setGatingSequences(batchEventProcessor.getSequence());

  }
 

public static void main(String[] args) {
  ExecutorService executor = Executors.newCachedThreadPool();
  int bufferSize = 1024;

  WaitStrategy ws = new BlockingWaitStrategy();
  Disruptor<CpuUsageEvent> disruptor = new Disruptor<>(factory, bufferSize, executor, ProducerType.SINGLE, ws);
  disruptor.handleEventsWith(handler);
  RingBuffer<CpuUsageEvent> ringBuffer = disruptor.start();

  publishEvents(ringBuffer);

  disruptor.shutdown();
  executor.shutdown();
}
 

public DisruptorPublisher(int bufferSize, TestHandler handler) {
      this.handler = new HelloEventHandler(handler);
      
      EventFactory<HelloEvent> eventFactory = new HelloEventFactory();
int ringBufferSize = 1024 * 1024; // RingBuffer 大小，必須是 2 的 N 次方；
      
      executor = Executors.newSingleThreadExecutor();
      disruptor = new Disruptor<HelloEvent>(
		eventFactory, ringBufferSize, Executors.defaultThreadFactory(),
		ProducerType.SINGLE, YIELDING_WAIT);
  }
 

public static void main(String[] args) {
	EventFactory<HelloEvent> eventFactory = new HelloEventFactory();
	int ringBufferSize = 1024 * 1024; // RingBuffer 大小，必須是 2 的 N 次方；

	Disruptor<HelloEvent> disruptor = new Disruptor<HelloEvent>(
			eventFactory, ringBufferSize, Executors.defaultThreadFactory(),
			ProducerType.SINGLE, new YieldingWaitStrategy());

	EventHandler<HelloEvent> eventHandler = new HelloEventHandler();
	disruptor.handleEventsWith(eventHandler, eventHandler);

	disruptor.start();

}
 

@Override
        protected Disruptor<ConcurrentEvent> initialValue() {
            Disruptor<ConcurrentEvent> disruptor = new Disruptor<>(
                    ConcurrentEventFactory.DEFAULT, DEFAULT_RING_BUFFER_SIZE, CACHED_THREAD_POOL, ProducerType.SINGLE, new BlockingWaitStrategy());
            disruptor.handleEventsWith(new ConcurrentHandler());
//            disruptor.handleExceptionsWith();
            disruptor.start();
            return disruptor;
        }
 

@SuppressWarnings("unchecked")
public OneToOneTranslatorThroughputTest()
{
    Disruptor<ValueEvent> disruptor =
        new Disruptor<ValueEvent>(
            ValueEvent.EVENT_FACTORY,
            BUFFER_SIZE, executor,
            ProducerType.SINGLE,
            new YieldingWaitStrategy());
    disruptor.handleEventsWith(handler);
    this.ringBuffer = disruptor.start();
}
 

@Parameters
public static Collection<Object[]> generateData()
{
    Object[][] allocators =
        {
            {ProducerType.SINGLE, new BlockingWaitStrategy()},
            {ProducerType.MULTI, new BlockingWaitStrategy()},
        };
    return Arrays.asList(allocators);
}
 

@SuppressWarnings("unchecked")
@Before
public void setUp()
{
    disruptor = new Disruptor<byte[]>(
        new ByteArrayFactory(256), 1024, Executors.newCachedThreadPool(), ProducerType.SINGLE,
        new BlockingWaitStrategy());
    disruptor.handleEventsWith(eventHandler);
    disruptor.setDefaultExceptionHandler(new FatalExceptionHandler());
}
 

public static void main(String[] args) throws InterruptedException {
		long beginTime=System.currentTimeMillis();
		
		int bufferSize=1024;
		ExecutorService executor=Executors.newFixedThreadPool(4);
		//������캯�����������������˽�����2��demo֮��Ϳ��¾������ˣ���������~
		Disruptor<TradeTransaction> disruptor=new Disruptor<TradeTransaction>(new EventFactory<TradeTransaction>() {
			@Override
			public TradeTransaction newInstance() {
				return new TradeTransaction();
			}
		}, bufferSize, executor, ProducerType.SINGLE, new BusySpinWaitStrategy());
		
		//ʹ��disruptor������������C1,C2
		EventHandlerGroup<TradeTransaction> handlerGroup=disruptor.handleEventsWith(new TradeTransactionVasConsumer(),new TradeTransactionInDBHandler());
		
		TradeTransactionJMSNotifyHandler jmsConsumer=new TradeTransactionJMSNotifyHandler();
		//������C1,C2����֮��ִ��JMS��Ϣ���Ͳ��� Ҳ���������ߵ�C3
		handlerGroup.then(jmsConsumer);
		
		
		disruptor.start();//����
		CountDownLatch latch=new CountDownLatch(1);
		//������׼��
		executor.submit(new TradeTransactionPublisher(latch, disruptor));
		latch.await();//�ȴ�����������.
		disruptor.shutdown();
		executor.shutdown();
		
		System.out.println("�ܺ�ʱ:"+(System.currentTimeMillis()-beginTime));
//		long tt= System.currentTimeMillis();
//		for (int i = 0; i < 1000; i++) {
//			int j=i;
//		}
//		System.out.println("�ܺ�ʱ:"+(System.currentTimeMillis()-tt));
		
	}