/// <summary>
/// checking a series conditions
/// </summary>
/// <param name="ballotType"></param>
/// <param name="ballotRelation"></param>
/// <returns></returns>
public static bool?Vote(BallotType ballotType, BallotRelation ballotRelation)
{
object result = string.Empty;
return(Vote(ballotType, ballotRelation, null, null, null, out result));
}
/// <summary>
/// checking a series conditions.
/// When voters vote for a ballot type, they do not change anything; they only check some conditions. It means
/// race condition will not arise. Thus, ballot mechanism can be used by multiple threads at the same time,
/// without mutual exclusion being needed, that is, no lock is needed.
/// </summary>
/// <param name="ballotType"></param>
/// <param name="ballotRelation"></param>
/// <param name="arg1"></param>
/// <param name="arg2"></param>
/// <param name="arg3"></param>
/// <param name="arg4"></param>
/// <returns></returns>
public static bool?Vote(BallotType ballotType, BallotRelation ballotRelation, object arg1, object arg2, object arg3, out object arg4)
{
arg4 = string.Empty;
if (!_checkFuncDic.Keys.Contains <BallotType>(ballotType))
{
return(null);
}
bool isCheckPass = default(bool);
switch (ballotRelation)
{
case BallotRelation.AND:
foreach (var item in _checkFuncDic[ballotType])
{
bool?result = item(arg1, arg2, arg3, out arg4);
if (!result.HasValue)
{
continue;
}
if (!result.Value)
{
return(false);
}
}
isCheckPass = true;
break;
case BallotRelation.NONE:
foreach (var item in _checkFuncDic[ballotType])
{
bool?result = item(arg1, arg2, arg3, out arg4);
if (!result.HasValue)
{
continue;
}
if (result.Value)
{
return(false);
}
}
isCheckPass = true;
break;
case BallotRelation.OR:
foreach (var item in _checkFuncDic[ballotType])
{
bool?result = item(arg1, arg2, arg3, out arg4);
if (!result.HasValue)
{
continue;
}
if (result.Value)
{
return(true);
}
}
isCheckPass = false;
break;
}
return(isCheckPass);
}
/// <summary>
/// checking a series conditions
/// </summary>
/// <param name="ballotType"></param>
/// <param name="ballotRelation"></param>
/// <param name="arg1"></param>
/// <param name="arg2"></param>
/// <param name="arg3"></param>
/// <returns></returns>
public static bool?Vote(BallotType ballotType, BallotRelation ballotRelation, object arg1, object arg2, object arg3)
{
object result = string.Empty;
return(Vote(ballotType, ballotRelation, arg1, arg2, arg3, out result));
}
