问如何在Glassfish V4.0中创建ManagedThreadFactory实例

EN

@Singleton
@Startup
public class Messenger {
    @EJB
    MyMessenger me;

    @Resource(name = "concurrent/__defaultManagedThreadFactory")
    ManagedThreadFactory threadFactory;

    @Resource
    ManagedExecutorService executorService;

    @PostConstruct
    public void postConstruct() {
        me.waitAndInitialize();
    }

    @Asynchronous
    public Future<?> waitAndInitialize() {
        try {
            final AtomicInteger done = new AtomicInteger(0);
            int i = 0;

            while (done.intValue() == 0 && i < 20) {
                i++;
                getExecutorService().submit(
                        new Runnable() {

                            @Override
                            public void run() {
                                int incrementAndGet = done.incrementAndGet();
                            }
                        });

                Thread.sleep(500);
            }

            if (done.intValue() == 0) {
                Logger.getAnonymousLogger().severe("Waited a long time for the ExecutorService do become ready, but it never did. Will not initialize!");
            } else {
                init();
            }
        } catch (Exception e) {
            Logger.getLogger(this.getClass().getName()).log(Level.SEVERE, "Exception in waitAndInitialize: " + e.getMessage(), e);
        }

        return new AsyncResult<>(null);
    }

    protected void init() {
        connectionFactory.setExecutorService(executorService);
        connectionFactory.setThreadFactory(threadFactory);

        // connect to rabbit and listen to queues
    }
}

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