/// <summary>
/// Create a new EVSE identification
/// based on the given charging station identification.
/// </summary>
/// <param name="ChargingStationId">A charging station identification.</param>
/// <param name="AdditionalSuffix">An additional EVSE suffix.</param>
public static EVSE_Id CreateEVSEId(this ChargingStation_Id ChargingStationId,
String AdditionalSuffix)
{
var Suffix = ChargingStationId.Suffix;
if (Suffix.StartsWith("TATION", StringComparison.Ordinal))
{
Suffix = "VSE" + Suffix.Substring(6);
}
return(EVSE_Id.Parse(ChargingStationId.OperatorId, Suffix + AdditionalSuffix ?? ""));
}
/// <summary>
/// Create a ChargingStationId based on the given EVSEIds.
/// </summary>
/// <param name="EVSEIds">An enumeration of EVSEIds.</param>
public static ChargingStation_Id?Create(IEnumerable <EVSE_Id> EVSEIds,
String HelperId = "",
Byte Length = 15,
Func <String, String> Mapper = null)
{
#region Initial checks
if (EVSEIds == null)
{
return(null);
}
var _EVSEIds = EVSEIds.ToArray();
if (_EVSEIds.Length == 0)
{
return(null);
}
#endregion
#region A single EVSE Id...
// It is just a single EVSE Id...
if (_EVSEIds.Length == 1)
{
return(Create(_EVSEIds[0]));
}
#endregion
// Multiple OperatorIds which do not match!
if (_EVSEIds.Select(evse => evse.OperatorId.ToString()).Distinct().Skip(1).Any())
{
return(null);
}
#region EVSEIdSuffix contains '*'...
if (_EVSEIds.Any(EVSEId => EVSEId.Suffix.Contains('*') ||
EVSEId.Suffix.Contains('-')))
{
var EVSEIdPrefixStrings = _EVSEIds.
Select(EVSEId => EVSEId.Suffix.Split(StarSplitter, StringSplitOptions.RemoveEmptyEntries)).
Select(SuffixElements => SuffixElements.Take(SuffixElements.Length - 1).AggregateWith("*", "")).
Where(NewSuffix => NewSuffix != "").
Distinct().
ToArray();
if (EVSEIdPrefixStrings.Length != 1)
{
return(null);
}
return(Parse(_EVSEIds[0].OperatorId, EVSEIdPrefixStrings[0]));
}
#endregion
#region ...or use longest prefix...
else
{
var _Array = _EVSEIds.Select(evse => evse.ToString()).ToArray();
var _MinLength = (Int32)_Array.Select(v => v.Length).Min();
var _Prefix = "";
for (var i = 0; i < _MinLength; i++)
{
if (_Array.All(v => v[i] == _Array[0][i]))
{
_Prefix += _Array[0][i];
}
}
if (((UInt64)_Prefix.Length) > _EVSEIds[0].OperatorId.Length + 1)
{
var TmpEVSEId = EVSE_Id.Parse(_Prefix);
if (TmpEVSEId.Format == OperatorIdFormats.eMI3)
{
if (((UInt64)_Prefix.Length) > _EVSEIds[0].OperatorId.Length + 2)
{
_Prefix = TmpEVSEId.Suffix; //TmpEVSEId.OperatorId + "*S" + TmpEVSEId.Suffix;
}
else
{
return(null);
}
}
return(Parse(_EVSEIds[0].OperatorId, _Prefix));
}
}
#endregion
#region ...or generate a hash of the EVSEIds!
if (Length < 12)
{
Length = 12;
}
if (Length > 50)
{
Length = 50;
}
var Suffíx = new SHA1CryptoServiceProvider().
ComputeHash(Encoding.UTF8.GetBytes(EVSEIds.Select(evseid => evseid.ToString()).
AggregateWith(HelperId ?? ","))).
ToHexString().
SubstringMax(Length).
ToUpper();
return(Parse(_EVSEIds[0].OperatorId,
Mapper != null
? Mapper(Suffíx)
: Suffíx));
#endregion
}
