/// <summary>
/// 两列表数据相同（包含两列表重复数据的数量都一样）
/// </summary>
/// <typeparam name="TLeft"></typeparam>
/// <typeparam name="TRight"></typeparam>
/// <typeparam name="TEquals"></typeparam>
/// <param name="param"></param>
/// <param name="isBigData">是否是处理大数据</param>
/// <returns></returns>
public static bool IsEquals <TLeft, TRight, TEquals>(ListComparerParam <TLeft, TRight, TEquals> param, bool isBigData)
{
if (param.LeftList.Count() != param.RightList.Count())
{
return(false);
}
if (isBigData)
{
param = RemoveSameOneRecord(param);
}
// 分组对比数据
var lefts = param.LeftList.GroupBy(param.LeftFunc.Invoke).Select(p => new ListEquals <TEquals>()
{
Obj = p.Key,
Total = p.Count()
}).ToList();
var rights = param.RightList.GroupBy(param.RightFunc.Invoke).Select(p => new ListEquals <TEquals>()
{
Obj = p.Key,
Total = p.Count()
}).ToList();
if (lefts.Count != rights.Count)
{
return(false);
}
var count = lefts.Join(rights, p => p.Obj, p => p.Obj, (p, q) => new { p, q }).Count(p => p.p.Total == p.q.Total);
if (count != lefts.Count)
{
return(false);
}
return(true);
}
/// <summary>
/// 移除两边都是一条记录的数据
/// </summary>
/// <typeparam name="TLeft"></typeparam>
/// <typeparam name="TRight"></typeparam>
/// <typeparam name="TEquals"></typeparam>
/// <param name="param"></param>
/// <returns></returns>
public static ListComparerParam <TLeft, TRight, TEquals> RemoveSameOneRecord <TLeft, TRight, TEquals>(ListComparerParam <TLeft, TRight, TEquals> param)
{
var leftDict = new Dictionary <TEquals, TLeft>();
var leftRepeat = new List <TLeft>();
foreach (var item in param.LeftList)
{
var key = param.LeftFunc.Invoke(item);
if (!leftDict.ContainsKey(key))
{
leftDict.Add(key, item);
}
else
{
leftRepeat.Add(item);
}
}
var rightDict = new Dictionary <TEquals, TRight>();
var rightRepeat = new List <TRight>();
foreach (var item in param.RightList)
{
var key = param.RightFunc.Invoke(item);
if (!rightDict.ContainsKey(key))
{
rightDict.Add(key, item);
}
else
{
rightRepeat.Add(item);
}
}
//重复的数据
var repeats = leftRepeat.Select(param.LeftFunc.Invoke).Union(rightRepeat.Select(param.RightFunc.Invoke)).ToList();
//左1右0
var leftHas = new Dictionary <TEquals, TLeft>();
foreach (var item in leftDict)
{
if (!rightDict.ContainsKey(item.Key))
{
leftHas.Add(item.Key, item.Value);
}
}
//左0右1
var rightHas = new Dictionary <TEquals, TRight>();
foreach (var item in rightDict)
{
if (!leftDict.ContainsKey(item.Key))
{
rightHas.Add(item.Key, item.Value);
}
}
//左边不同数据都取出来
var listLeft = new List <TLeft>();
listLeft.AddRange(leftRepeat);
foreach (var key in repeats)
{
if (leftDict.ContainsKey(key))
{
listLeft.Add(leftDict[key]);
}
}
foreach (var item in leftHas.GroupJoin(repeats, p => p.Key, p => p, (p, q) => new { p, q }).Where(p => !p.q.Any()).Select(m => m.p).ToList())
{
listLeft.Add(leftDict[item.Key]);
}
//右边不同数据都取出来
var listRight = new List <TRight>();
listRight.AddRange(rightRepeat);
foreach (var key in repeats)
{
if (rightDict.ContainsKey(key))
{
listRight.Add(rightDict[key]);
}
}
foreach (var item in rightHas.GroupJoin(repeats, p => p.Key, p => p, (p, q) => new { p, q }).Where(p => !p.q.Any()).Select(m => m.p).ToList())
{
listRight.Add(rightDict[item.Key]);
}
param.LeftList = listLeft;
param.RightList = listRight;
return(param);
}
/// <summary>
/// 返回两列表差异数据集合（包含重复数据的数量对比）
/// </summary>
/// <typeparam name="TLeft"></typeparam>
/// <typeparam name="TRight"></typeparam>
/// <typeparam name="TEquals"></typeparam>
/// <param name="param"></param>
/// <param name="isBigData">是否是处理大数据</param>
public static ListDiffResult <TLeft, TRight, TEquals> GetDiffList <TLeft, TRight, TEquals>(ListComparerParam <TLeft, TRight, TEquals> param, bool isBigData)
{
if (isBigData)
{
param = RemoveSameOneRecord(param);
}
var lefts = param.LeftList.GroupJoin(param.RightList, param.LeftFunc.Invoke, param.RightFunc.Invoke, (p, q) => new { p, q }).Where(p => p.q.Count() != 1).ToList();
var rights = param.RightList.GroupJoin(param.LeftList, param.RightFunc.Invoke, param.LeftFunc.Invoke, (p, q) => new { p, q }).Where(p => p.q.Count() != 1).ToList();
var ls = lefts.Where(p => p.q.Count() > 1)
.GroupBy(p => param.LeftFunc.Invoke(p.p), (p, q) => new { p, q })
.Select(m => new ListRepeatResult <TLeft, TRight, TEquals>
{
Object = m.p,
Lefts = m.q.Select(p => p.p).ToList(),
Rights = m.q.First().q.ToList()
})
.Where(p => p.Lefts.Count != p.Rights.Count);
var rs = rights.Where(p => p.q.Count() > 1)
.GroupBy(p => param.RightFunc.Invoke(p.p), (p, q) => new { p, q })
.Select(m => new ListRepeatResult <TLeft, TRight, TEquals>
{
Object = m.p,
Lefts = m.q.First().q.ToList(),
Rights = m.q.Select(p => p.p).ToList()
})
.Where(p => p.Lefts.Count != p.Rights.Count);
var result = new ListDiffResult <TLeft, TRight, TEquals>
{
LeftDiffs = lefts.Where(p => !p.q.Any()).Select(p => p.p).ToList(),
RightDiffs = rights.Where(p => !p.q.Any()).Select(p => p.p).ToList(),
Repeats = ls.Union(rs).ToList()
};
return(result);
}
/// <summary>
/// 移除两边都是一条记录的数据
/// </summary>
/// <typeparam name="TLeft"></typeparam>
/// <typeparam name="TRight"></typeparam>
/// <typeparam name="TEquals"></typeparam>
/// <param name="leftList"></param>
/// <param name="rightList"></param>
/// <param name="leftFunc"></param>
/// <param name="rightFunc"></param>
/// <returns></returns>
public static ListComparerParam <TLeft, TRight, TEquals> RemoveSameOneRecord <TLeft, TRight, TEquals>(this IEnumerable <TLeft> leftList, IEnumerable <TRight> rightList, Func <TLeft, TEquals> leftFunc, Func <TRight, TEquals> rightFunc)
{
var param = new ListComparerParam <TLeft, TRight, TEquals>(leftList, rightList, leftFunc, rightFunc);
return(ListHelper.RemoveSameOneRecord(param));
}
/// <summary>
/// 返回两列表差异数据集合（包含重复数据的数量对比）
/// </summary>
/// <typeparam name="TLeft"></typeparam>
/// <typeparam name="TRight"></typeparam>
/// <typeparam name="TEquals"></typeparam>
/// <param name="leftList"></param>
/// <param name="rightList"></param>
/// <param name="leftFunc"></param>
/// <param name="rightFunc"></param>
/// <param name="isBigData">是否是处理大数据</param>
/// <returns></returns>
public static ListDiffResult <TLeft, TRight, TEquals> GetDiffList <TLeft, TRight, TEquals>(this IEnumerable <TLeft> leftList, IEnumerable <TRight> rightList, Func <TLeft, TEquals> leftFunc, Func <TRight, TEquals> rightFunc, bool isBigData)
{
var param = new ListComparerParam <TLeft, TRight, TEquals>(leftList, rightList, leftFunc, rightFunc);
return(ListHelper.GetDiffList(param, isBigData));
}