public override Object ConvertScalar(PipelineContext ctx, Object value)
{
DateTime ret;
String sValue = null;
double dblDate = 0.0;
if (value == null)
{
return(null);
}
JValue jv = value as JValue;
if (jv != null)
{
switch (jv.Type)
{
default:
goto CANNOT_CONVERT;
case JTokenType.Date:
ret = (DateTime)jv;
goto EXIT_RTN;
case JTokenType.Integer:
dblDate = (long)jv;
goto FROM_DBL;
case JTokenType.Float:
dblDate = (double)jv;
goto FROM_DBL;
case JTokenType.String:
sValue = (String)jv;
goto FROM_STR;
}
}
switch (Type.GetTypeCode(value.GetType()))
{
default:
goto CANNOT_CONVERT;
case TypeCode.DateTime:
ret = (DateTime)value;
goto EXIT_RTN;
case TypeCode.String:
sValue = (String)value;
goto FROM_STR;
case TypeCode.Double:
dblDate = (double)value;
goto FROM_DBL;
case TypeCode.Int32:
dblDate = (int)value;
goto FROM_DBL;
case TypeCode.Int64:
dblDate = (long)value;
goto FROM_DBL;
}
CANNOT_CONVERT:
throwConvert("DateTime", value);
FROM_STR:
if (String.IsNullOrEmpty(sValue))
{
return(null);
}
sValue = replaceTimeZone(sValue);
if (formats != null)
{
if (DateTime.TryParseExact(sValue, formats, CultureInfo.InvariantCulture, DateTimeStyles.AllowWhiteSpaces, out ret))
{
goto EXIT_RTN;
}
}
ret = Invariant.ToDateTime(sValue);
goto EXIT_RTN;
FROM_DBL:
//1000000 days is beyond 2100 when it is a COM date, but its in the 2nd day since epoch for linux. So lets decide on that limit.
ret = (dblDate < 1000000.0) ? DateTime.FromOADate(dblDate) : dtEpoch.AddSeconds(dblDate);
goto EXIT_RTN;
EXIT_RTN:
switch (mode & (DateMode.ToLocal | DateMode.ToUtc))
{
case DateMode.ToLocal: ret = ret.ToLocalTime(); break;
case DateMode.ToUtc: ret = ret.ToUniversalTime(); break;
}
if ((mode & DateMode.ToUnspec) != 0)
{
ret = new DateTime(ret.Ticks, DateTimeKind.Unspecified);
}
return(ret);
}
