/*
* This method does validation of a numeric data type after precision point has been
* removed during serialization and raw data during parsing. The following rules need
* to be obeyed
*
* 1) 0th char is - or digit, + is not allowed
* 2) All other chars are digit
* 3) If length > minLength, then no leading zeroes are allowed
* 4) Sign is not part of length calculation
*
* This method doesn't apply precision point nor does it check for it
*/
public static bool ValidateRDataType(StringBuilder data, int minL, int maxL, int decimalSeparator, out FieldError error)
{
error = null;
int dataLen = data.Length;
if (dataLen == 0) //too short error
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeDataElementTooShortCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeDataElementTooShortCode), string.Empty);
return(true);
}
char c = data[0];
bool isNegSign = false;
bool isError = false;
if (c == '+')
{
isError = true;
}
else if (c == '-')
{
isNegSign = true;
if (data.Length == 1)
{
isError = true; //data is -, single negative sign which is invalid
}
}
if (isError)
{
AppendInvalidCharCode(data);
return(true);
}
//This loop would ensure all are digits or digits + one point
//otherwise loop would abort and return true
bool bPointFound = false;
int decimalIndex = -1;
for (int i = isNegSign ? 1 : 0; i < dataLen; i++)
{
if (DataTypeHelper.IsDigit(data[i])) //digit found, no-op
{
}
else if (!bPointFound && data[i] == decimalSeparator)
{
bPointFound = true;
decimalIndex = i;
//Edifact data should have atleast one digit after decimal point
if (!(i + 1 < dataLen && DataTypeHelper.IsDigit(data[i + 1])))
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeInvalidCharacterInDataElementCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeInvalidCharacterInDataElementCode), data.ToString());
}
}
else //error state
{
AppendInvalidCharCode(data);
return(true);
}
}
if (isNegSign)
{
dataLen--; //count of digits
if (dataLen > 0)
{
c = data[1];
}
else
{
AppendInvalidCharCode(data);
return(true);
}
}
//check for leading zeroes
//Leading zero is the 1st char being zero, otherwise not
//leading zero is allowed only when data has minimum length
//skip the check if minL is not specified, #3454
if (c == '0' && minL > 0 && false)
{
if (decimalIndex < 0) //no decimal found
{
if ((dataLen > minL && minL > 0) || minL < 0)
{
AppendInvalidCharCode(data);
return(true);
}
}
else //decimal was found, so 0.1, -0.1 are valid but 00.1 or -00.1 are invalid
{
if ((dataLen > minL && minL > 0) || minL < 0)
{
int offset = isNegSign ? 2 : 1;
if (data.Length > offset && data[offset] == decimalSeparator)
{
}
else
{
AppendInvalidCharCode(data);
return(true);
}
}
}
}
if (decimalIndex >= 0)
{
dataLen--;
if (data[data.Length - 1] == '0' && false &&
((dataLen > minL && minL > 0) || minL < 0))
{
AppendInvalidCharCode(data);
return(true);
}
}
if (minL > 0 && dataLen < minL)
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeDataElementTooShortCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeDataElementTooShortCode), data.ToString());
return(true);
}
if (maxL > 0 && dataLen > maxL)
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeDataElementTooLongCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeDataElementTooLongCode), data.ToString());
return(true);
}
return(false);
}
public override FieldError ValidateValue(StringBuilder data)
{
FieldError error = null;
string str = data.ToString();
// First try the .NET function to check if date is valid
// if not we will follow other way (check yyyymmdd)
DateTime dt;
if (DateTime.TryParse(str, out dt))
{
return(error);
}
if (data.Length < minLength || data.Length == 7)
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeInvalidDateCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeInvalidDateCode), str);
return(error);
}
if (data.Length > maxLength)
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeInvalidDateCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeInvalidDateCode), str);
return(error);
}
//run thru the data to ensure all are digits
for (int i = 0; i < data.Length; i++)
{
if (!DataTypeHelper.IsDigit(data[i]))
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeInvalidDateCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeInvalidDateCode), data.ToString());
return(error);
}
}
//data is between min and max length, thus it is atleast 6 chars
//and all are digits
int offset = data.Length == 6 ? 2 : 4;
int year = data.Length == 6 ? 10 * (data[0] - '0') + (data[1] - '0')
: 1000 * (data[0] - '0') + 100 * (data[1] - '0') + 10 * (data[2] - '0') + (data[3] - '0');
int month = 10 * (data[offset] - '0') + (data[offset + 1] - '0');
int day = 10 * (data[offset + 2] - '0') + (data[offset + 3] - '0');
if (year == 0)
{
year = 2000;
}
try
{
DateTime dateTime = new DateTime(year, month, day);
}
catch (ArgumentOutOfRangeException)
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeInvalidDateCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeInvalidDateCode), str);
}
return(error);
}
private static void AppendInvalidCharCode(StringBuilder data)
{
DataTypeHelper.GenerateFieldError(X12ErrorCode.DeInvalidCharacterInDataElementCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeInvalidCharacterInDataElementCode), data.ToString());
}
/*
* This method does validation of a numeric data type after precision point has been
* removed during serialization and raw data during parsing. The following rules need
* to be obeyed
*
* 1) 0th char is - or digit, + is not allowed
* 2) All other chars are digit
* 3) If length > minLength, then no leading zeroes are allowed
* 4) Sign is not part of length calculation
*
* This method doesn't apply precision point nor does it check for it
*/
private bool ValidateNDataType(StringBuilder data, out FieldError error)
{
error = null;
int dataLen = data.Length;
if (dataLen == 0) //too short error
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeDataElementTooShortCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeDataElementTooShortCode), string.Empty);
return(true);
}
char c = data[0];
bool isNegSign = false;
if (c == '+')
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeInvalidCharacterInDataElementCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeInvalidCharacterInDataElementCode), data.ToString());
return(true);
}
else if (c == '-')
{
isNegSign = true;
}
for (int i = isNegSign ? 1 : 0; i < dataLen; i++)
{
// "." is valid character
if (!(DataTypeHelper.IsDigit(data[i]) || data[i] == '.'))
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeInvalidCharacterInDataElementCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeInvalidCharacterInDataElementCode), data.ToString());
return(true);
}
}
if (isNegSign)
{
dataLen--; //count of digits
if (dataLen > 0)
{
c = data[1];
}
else
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeDataElementTooShortCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeDataElementTooShortCode), data.ToString());
return(true);
}
}
if (/*(mPrecision > 0 && dataLen < mPrecision) || */ (minLength >= 0 && dataLen < minLength))
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeDataElementTooShortCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeDataElementTooShortCode), data.ToString());
return(true);
}
if (maxLength >= 0 && dataLen > maxLength)
{
error = DataTypeHelper.GenerateFieldError(X12ErrorCode.DeDataElementTooLongCode,
X12ErrorCode.GetDataElementErrorDescription(X12ErrorCode.DeDataElementTooLongCode), data.ToString());
return(true);
}
return(false);
}