Backup/Discuz.Forum/OnlineUsers.cs

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using System;
using System.Web;
using System.Data;
using System.Collections.Generic;

using Discuz.Common;
using Discuz.Data;
using Discuz.Config;
using Discuz.Entity;
using Discuz.Common.Generic;

namespace Discuz.Forum
{
    /// <summary>
    /// 在线用户操作类
    /// </summary>
    public class OnlineUsers
    {
        private static object SynObject = new object();

        /// <summary>
        /// 获得在线用户总数量
        /// </summary>
        /// <returns>用户数量</returns>
        public static int GetOnlineAllUserCount()
        {
            int onlineUserCountCacheMinute = GeneralConfigs.GetConfig().OnlineUserCountCacheMinute;
            if (onlineUserCountCacheMinute == 0)
                return Discuz.Data.OnlineUsers.GetOnlineAllUserCount();

            Discuz.Cache.DNTCache cache = Discuz.Cache.DNTCache.GetCacheService();
            int onlineAllUserCount = TypeConverter.ObjectToInt(cache.RetrieveObject("/Forum/OnlineUserCount"));
            if (onlineAllUserCount != 0)
                return onlineAllUserCount;

            onlineAllUserCount = Discuz.Data.OnlineUsers.GetOnlineAllUserCount();
            //Discuz.Cache.ICacheStrategy ics = new RssCacheStrategy();
            //ics.TimeOut = onlineUserCountCacheMinute * 60;
            //cache.LoadCacheStrategy(ics);
            cache.AddObject("/Forum/OnlineUserCount", onlineAllUserCount, onlineUserCountCacheMinute * 60);
            //cache.LoadDefaultCacheStrategy();
            return onlineAllUserCount;
        }

        /// <summary>
        /// 返回缓存中在线用户总数
        /// </summary>
        /// <returns>缓存中在线用户总数</returns>
        public static int GetCacheOnlineAllUserCount()
        {
            int count = TypeConverter.StrToInt(Utils.GetCookie("onlineusercount"), 0);
            if (count == 0)
            {
                count = OnlineUsers.GetOnlineAllUserCount();
                Utils.WriteCookie("onlineusercount", count.ToString(), 3);
            }
            return count;
        }

        /// <summary>