/// <summary>
/// 更新用户未读消息
/// </summary>
/// <param name="unReadUpdateData"></param>
public void UpdateUnReadDataCache(List <UnReadMsg> unReadUpdateData)
{
string unReadKey = MsCacheName.GetUserUnReadData;
var unReadData = MsCacheHelper.GetCache <List <UnReadMsg> >(unReadKey);
if (unReadData == null)
{
ResetCache();
}
else
{
//遍历，如果有记录，那么加1，否则就添加一条
foreach (var item in unReadUpdateData)
{
var first = unReadData.FirstOrDefault(x => x.clientUserId == item.clientUserId && x.GroupId == item.GroupId && x.MessageType == item.MessageType);
if (first != null)
{
first.UnReadCount += 1;
first.AllCount += 1;
}
else
{
unReadData.Add(item);
}
}
//重置缓存数据
SetUnReadDataCache(unReadData);
}
}
/// <summary>
/// 设定组用户的cache
/// </summary>
/// <param name="groupUser"></param>
/// <param name="groupId"></param>
public GroupUser SetGroupUserCache(GroupUser groupUser, string groupId)
{
string groupAllUserKey = string.Format(MsCacheName.GetGroupAllUser, groupId);
//设定cache
return(MsCacheHelper.InsertAndGetCache <GroupUser>(groupAllUserKey, groupUser));
}
/// <summary>
/// 根据lambda表达式更新相关数据
/// </summary>
/// <param name="predicate"></param>
/// <returns></returns>
public List <UnReadMsg> UpdateUnReadDataFromCacheByPredicate(Func <UnReadMsg, bool> predicate, int count = 0)
{
string unReadKey = MsCacheName.GetUserUnReadData;
var unReadData = MsCacheHelper.GetCache <List <UnReadMsg> >(unReadKey);
if (unReadData == null)
{
ResetCache();
}
else
{
//遍历
var list = unReadData.Where(predicate).ToList();
foreach (var item in list)
{
count = count == 0 ? item.UnReadCount : count;
unReadData.Add(new UnReadMsg
{
clientUserId = item.clientUserId,
UnReadCount = item.UnReadCount - count,
GroupId = item.GroupId,
AllCount = item.AllCount - count,//减去清零的那部分
MessageType = item.MessageType
});
unReadData.Remove(item);
}
//重置缓存数据
SetUnReadDataCache(unReadData);
}
return(unReadData);
}
/// <summary>
/// 私有方法，获取所有未读信息
/// </summary>
/// <returns></returns>
private List <UnReadMsg> GetAllUnReadDataFromCache()
{
string unReadKey = MsCacheName.GetUserUnReadData;
var unReadData = MsCacheHelper.GetCache <List <UnReadMsg> >(unReadKey);
if (unReadData == null)
{
//从队列导入到数据库
unReadData = ResetCache();
}
return(unReadData ?? new List <UnReadMsg>());
}
/// <summary>
/// 获取组用户cache
/// </summary>
/// <param name="groupId"></param>
/// <returns></returns>
public GroupUser GetGroupUserFromCache(string groupId)
{
string groupAllUserKey = string.Format(MsCacheName.GetGroupAllUser, groupId);
var groupUser = MsCacheHelper.GetCache <GroupUser>(groupAllUserKey);
if (groupUser == null)
{
//从数据库获取，赋值给groupuser
groupUser = UnReadDataBLL.Instance.GetEntMembers(groupId);
if (groupUser != null && groupUser.clientUserIds.Count > 0)
{
SetGroupUserCache(groupUser, groupId);
}
}
return(groupUser ?? new GroupUser()
{
GroupId = "0", clientUserIds = new List <string>()
});
}
/// <summary>
/// 设定用户未读消息
/// </summary>
/// <param name="unReadData"></param>
public List <UnReadMsg> SetUnReadDataCache(List <UnReadMsg> unReadData)
{
return(MsCacheHelper.InsertAndGetCache <List <UnReadMsg> >(MsCacheName.GetUserUnReadData, unReadData));
}
