[ISSUE #9721] support MemoryLimitedLinkedBlockingQueue

[loongs-zhang]

see #9721 and #9722

[loongs-zhang]

public class FixedThreadPool implements ThreadPool {

    public static final String NAME = "fixed";

    @Override
    public Executor getExecutor(URL url) {
        String name = url.getParameter(THREAD_NAME_KEY, DEFAULT_THREAD_NAME);
        int threads = url.getParameter(THREADS_KEY, DEFAULT_THREADS);
        int queues = url.getParameter(QUEUES_KEY, DEFAULT_QUEUES);
        return new ThreadPoolExecutor(threads, threads, 0, TimeUnit.MILLISECONDS,
                queues == 0 ? new SynchronousQueue<Runnable>() :
                        (queues < 0 ?
                                //here can be replace to MemoryLimitedLinkedBlockingQueue
                                //for example, limit the maximum memory used by this queue to 100MB
                                new LinkedBlockingQueue<Runnable>()
                                : new LinkedBlockingQueue<Runnable>(queues)),
                new NamedInternalThreadFactory(name, true), new AbortPolicyWithReport(name, url));
    }

}

like FixedThreadPool, we should also change it in CachedThreadPool、EagerThreadPool and LimitedThreadPool.

[loongs-zhang]

We can even control the number of threads based on MemoryLimiter in the future !

[chickenlj]

LGTM

[loongs-zhang]

:)