java – Disruptor – 未调用EventHandlers

这是我的设置代码：

private static final int BUFFER_SIZE = 1024 * 8;
private final ExecutorService  EXECUTOR = Executors.newSingleThreadExecutor();

private void initializeDisruptor() {
    if (disruptor != null)
        return;

    disruptor = 
            new Disruptor<TwitterStatusReceivedEvent>(TwitterStatusReceivedEvent.EVENT_FACTORY,EXECUTOR,new SingleThreadedClaimStrategy(BUFFER_SIZE),new SleepingWaitStrategy());
    disruptor.handleEventsWith(searchTermMatchingHandler)
        .then(appendStatusHandler,updatePriceHandler).then(persistUpdatesHandler);

    this.ringBuffer = disruptor.start();
}

在其他地方,我发布了一些事件.我尝试过以下两种方法：

事件发布方法A：

private void handleStatus(final Status status)
{

    long sequence = ringBuffer.next();
    TwitterStatusReceivedEvent event = ringBuffer.get(sequence);
    event.setStatus(status);
    event.setSearchInstruments(searchInstruments);
    ringBuffer.publish(sequence);
}

在这种情况下,我发现第一个EventHandler被调用,但除此之外从未发生任何事情.

事件发布方法B：

private void handleStatus(final Status status)
{
    disruptor.publishEvent(new EventTranslator<TwitterStatusReceivedEvent>() {

        @Override
        public TwitterStatusReceivedEvent translateTo(
                TwitterStatusReceivedEvent event,long sequence) {
            event.setStatus(status);
            event.setSearchInstruments(searchInstruments);
            return event;
        }
    });
}

在这种情况下,我发现根本没有调用任何事件处理程序.

我究竟做错了什么？

更新

这是我的EventHandler.我应该如何表示处理已完成？

public class SearchTermMatchingEventHandler implements EventHandler<TwitterStatusReceivedEvent> {

    @Override
    public void onEvent(TwitterStatusReceivedEvent event,long sequence,boolean endOfBatch) throws Exception {
        String statusText = event.getStatus().getText();
        for (Instrument instrument : event.getSearchInstruments())
        {
            if (statusText.contains(instrument.getSearchTerm()))
            {
                event.setMatchedInstrument(instrument);
                break;
            }
        }
    }

}