CompletableFuture的使用

List<List<String>> subList = CommonUtils.splitList(pendingIds, 500);

private static final ThreadFactory NAMED_THREAD_FACTORY =

                new ThreadFactoryBuilder().setNameFormat("syncContractLine-pool-%d").build();
        ThreadPoolExecutor threadPool = new ThreadPoolExecutor(10, 20, 500, TimeUnit.MILLISECONDS,
                new LinkedBlockingQueue<>(500), NAMED_THREAD_FACTORY, new ThreadPoolExecutor.AbortPolicy());
        IRequestContext current = RequestContextManager.getCurrent();
        List<CompletableFuture<Void>> futureList = new ArrayList<>();
        for (List<String> subPendingIds : subList) {
            CompletableFuture<Void> future = CompletableFuture.runAsync(() -> {
                RequestContextManager.setCurrent(current);
                LOGGER.info("handle contractLines start");
                if (CommonUtils.isNotEmpty(subPendingIds)) {
                    for (String id : subPendingIds) {
                        map.put("contract", id);
                        iContractHeaderInfoService.syncContractLineInfo(map);
                    }
                }
                LOGGER.info("handle contractLines end");
            }, threadPool);
            futureList.add(future);
        }
        CompletableFuture.allOf(futureList.toArray(new CompletableFuture[futureList.size()])).join();
        threadPool.shutdown();