rg1/server/AccountServer/Src/SnsFriendCacheOp.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

using Sog;

namespace Account
{
    public class SnsFriendCacheOp : BaseReloadableService
    {
        private SnsFriendAccountInfoCache m_table;

        public override int GetServiceType()
        {
            return AccountServiceType.SnsFriendCacheOp;
        }

        //销毁的时候置空
        public override void Dispose()
        {
            m_table = null;
        }

        public SnsFriendCacheOp(SnsFriendAccountInfoCache cacheTable)
        {
            m_table = cacheTable;
        }

        public SnsFriendInfoAccountObj GetSnsFriendInfo(string accountKey)
        {
            SnsFriendInfoAccountObj value;
            m_table.m_cacheTable.TryGetValue(accountKey, out value);

            return value;
        }

        public SnsFriendInfoAccountObj AddNewSnsFriendInfo(int accountType, string accountID)
        {
            string accountKey = AccountUtils.CalcAccountKey(accountType, accountID);

            SnsFriendInfoAccountObj value;
            if(m_table.m_cacheTable.TryGetValue(accountKey, out value))
            {
                return value;
            }

            value = new SnsFriendInfoAccountObj();
            value.Info.AccountType = accountType;
            value.Info.AccountID.SetString(accountID);

            m_table.m_cacheTable.Add(accountKey, value);

            return value;

        }

        public bool NeedQuerySnsFriendInfoFromDB(string accountKey)
        {
            SnsFriendInfoAccountObj snsFriendInfoInCache = GetSnsFriendInfo(accountKey);
            if(snsFriendInfoInCache == null)
            {
                return true;
            }

            //已经查询到uid了，不需要再次查询
            if(snsFriendInfoInCache.Info.Uid > 0)
            {
                return false;
            }

            //否则，如果uid为0，那么一段时间后新玩家有可能来玩游戏了
            //这个逻辑算是容错逻辑
            if(AppTime.GetNowSysMs() > snsFriendInfoInCache.LastQueryDBTime + 3600*1000)
            {
                return true;
            }

            return false;
        }




    }
}