public boolean check(Long pipelineId) {
        MainstemMonitor mainstemMonitor = ArbitrateFactory.getInstance(pipelineId, MainstemMonitor.class);
        return mainstemMonitor.check();
    }
public boolean check ( Long pipelineId ) { MainstemMonitor mainstemMonitor = ArbitrateFactory . getInstance ( pipelineId , MainstemMonitor . class ) ; return mainstemMonitor . check ( ) ; }
检查下当前的mainstem是否可以运行(在await获取成功后，每次执行业务之前进行check)