package com.dji.sample.manage.model; import java.time.LocalDateTime; import java.util.concurrent.ConcurrentHashMap; /** * The demo is only for functional closure, which is not recommended, * and it is recommended to use caching for handling. * @author sean.zhou * @version 0.1 * @date 2021/11/25 */ public class DeviceStatusManager { public static final ConcurrentHashMap STATUS_MANAGER = new ConcurrentHashMap<>(16); public static final Integer DEFAULT_ALIVE_SECOND = 30; }