private class FileCountTask {
	private CompletionService<Integer> completionService;

	public FileCountTask(Executor threadpool) {
		completionService = new ExecutorCompletionService<Integer>(threadpool);
	}

	public int count(final SmbFile dir) throws Exception {
		return completionService.submit(new Callable<Integer>() {
			public Integer call() throws Exception {
				int res = 0;

				for (final SmbFile f : dir.listFiles()) {
					if (f.isDirectory()) res += count(f) + 1;
					else if (f.isFile()) res++;
				}

				return res;
			}
		}).get();
	}
}