找到2 IEnumerable <t> </t>的delta

时间:2013-05-01 21:44:34

标签: c# .net-3.5

我从活动目录中获取用户和组,但经过一些测试后我们发现memberOF未与member对齐示例userA是groupW的成员,但groupW未将userA列为成员。为了解决这个问题,我们必须让成员和成员同步它们。

public class User
    {
       public string UserName { get; set; }
       public IList<string> MemberOf { get; set; } // list of group names
    }

public class Group
{
   public string Name { get; set; }
   public IList<string> Members { get; set; } // list of username
}

从活动目录我得到

IEnumerable<Group> allGroups
IEnumerable<User> allUsers

我怎样才能获得三角洲?

我应该有2个词典或查找..等等

  1. allGroups 列出User.MemberOF中找不到的所有组 字典应该具有密钥作为用户的组名和值列表。
  2.   

    示例groupA用户{A,B,C},GroupB用户{A,C}

    1. ALLUSERS 列出在Group.member中找不到的所有用户 字典应该具有密钥作为用户名和组的值列表。
    2.   

      示例userA分组{x,y},userB groups {x,z}

      编辑:另一个例子:假设这是从Active目录返回的2 IEnumerable。

       `IEnumerable<Group> allGroups` contains
       - GroupA {"Mike","Jan","David"}
       - GroupB {"Kim","David","Jolan","Tim"}
      
          // where Groupx is the name of the group and between {""} is the list of member
      
          IEnumerable<User> allUsers contains
      
       - Mike {"GroupA","GroupB","GroupC"}
       - David {"GroupA","GroupB"}
       - Jolan {"GroupB","GroupC"}
      

      在这个例子中我们可以看到,当我们要求LDAP获取groupA的所有成员时,“Jolan”未列出。但是当我们要求所有“Jolan”成员所在的团体时,我们可以看到列出了“GroupA”。与“Mike”相同,他是GroupB和GroupC的成员。 GroupC未列出。 “大卫” 在这种情况下有正确的值。

        

      另请注意,“Tim”列在groupB中,尽管他不在allUsers

           

      结果应该是这样的

      Dictionary<string,IList<string>> missingUsers;
      Item 1 > key="Mike", Value={"GroupB","GroupC"}
      Item 2 > Key="Jolan" , Value= {"GroupC"}
      
      Dictionary<string,IList<string>> missingGroup;
      item 1 > Key="GroupB",{"Tim"}
      

      我希望它更清楚

1 个答案:

答案 0 :(得分:1)

我不完全确定这是不是你问的问题......我明天会根据你对我评论的回答改变我的答案。 :)

假设您想要一个包含不在该组中的用户列表的组字典,以及一个包含他们不在的组列表的用户字典,那么这里的代码是...

    var groupsWithUsersNotInThem = new Dictionary<Group, List<User>>();
    var usersWithGroupsTheyArentIn = new Dictionary<User, List<Group>>();
    allUsers.ForEach(u =>
        {
            var groupsThisUserIsntIn = groups.Where(g => !g.Members.Contains(u.UserName)).ToList();
            if (groupsThisUserIsntIn.Count() > 0)
                usersWithGroupsTheyArentIn.Add(u, groupsThisUserIsntIn);
        });
    allGroups.ForEach(g =>
    {
        var usersNotInThisGroup = users.Where(u => !u.MemberOf.Contains(g.Name)).ToList();
        if (usersNotInThisGroup.Count() > 0)
            groupsWithUsersNotInThem.Add(g, usersNotInThisGroup);
    });

编辑:保留上面的代码,以防它有用

以下是解决实际delta问题的新代码...它只查找其他列表不匹配的用户/组。

    var missingGroups = new Dictionary<String, List<String>>();
    var missingUsers = new Dictionary<String, List<String>>();
    allUsers.ForEach(u =>
    {
        // get the list where the group exists but this user isn't in it
        var groupsThisUserIsntIn = allGroups
            .Where(g => u.MemberOf.Contains(g.Name) && !g.Members.Contains(u.UserName))
            .Select(g => g.Name).ToList();
        // add in the groups this user says he belongs to but that aren't in allGroups
        groupsThisUserIsntIn.AddRange(u.MemberOf.Where(userGroupName => allGroups.All(g => g.Name != userGroupName)));
        if (groupsThisUserIsntIn.Count() > 0)
            missingUsers.Add(u.UserName, groupsThisUserIsntIn);
    });
    allGroups.ForEach(g =>
    {
        // get the list where the user exists but this group isn't in it
        var usersNotInThisGroup = allUsers
            .Where(u => g.Members.Contains(u.UserName) && !u.MemberOf.Contains(g.Name))
            .Select(u => u.UserName).ToList();
        // add in the users this group says it has but that aren't in allUsers 
        usersNotInThisGroup.AddRange(g.Members.Where(groupUserName => allUsers.All(u => u.UserName != groupUserName)));
        if (usersNotInThisGroup.Count() > 0)
            missingGroups.Add(g.Name, usersNotInThisGroup);
    });