/// <summary>
/// Validates the supplied value in terms of the parameters constraints.
/// </summary>
/// <param name="value">Value to validate, may be null in which case no validation is applied.</param>
/// <param name="isRequired">Set to true to check that this parameter is non-null.</param>
/// <param name="enumPairs">We need to check that the value is found inside this collection</param>
/// <returns>ValidationResult indicating whether the supplied value is valid.</returns>
protected override ValidationResult ValidateValue(string value, bool isRequired, EnumPairCollection enumPairs)
{
if (!string.IsNullOrEmpty(value))
{
if (MaxLength != null && value.Length > MaxLength)
{
var constraintText = string.Format(ErrorMessages.ConstraintMaxLengthExceeded, MaxLength);
return(new ValidationResult(ValidationResult.ResultType.InvalidConstraint, constraintText, ErrorMessages.MaxLengthExceeded,
value, MaxLength));
}
if (MinLength != null && value.Length < MinLength)
{
var constraintText = string.Format(ErrorMessages.ConstraintMinLengthExceeded, MinLength);
return(new ValidationResult(ValidationResult.ResultType.InvalidConstraint, constraintText, ErrorMessages.MinLengthExceeded,
value, MinLength));
}
}
else if (isRequired)
{
return(new ValidationResult(ValidationResult.ResultType.Missing, ErrorMessages.NonOptionalParameterNotSupplied2));
}
if (value != null &&
enumPairs.HasValues &&
!enumPairs.TryParseWireValue(value, out _))
{
var constraintText = string.Format(ErrorMessages.UnrecognisedEnumIdValue, value);
return(new ValidationResult(ValidationResult.ResultType.InvalidConstraint, constraintText,
ErrorMessages.InvalidControlValueError));
}
return(ValidationResult.ValidResult);
}
/// <summary>
/// Converts the value of this instance to an equivalent EnumState value.
/// </summary>
/// <returns>A valid EnumState, assuming the source value can be correctly converted.</returns>
/// <remarks>This method converts the enum value to a string, looks up the EnumID from the supplied
/// EnumPairCollection and then returns a new EnumState. This method may be a little slow for
/// very large enumerations.</remarks>
public EnumState ToEnumState(EnumPairCollection enumPairs)
{
EnumState state = new EnumState(enumPairs.EnumIds);
string enumId;
string wireValue = ToString(null);
if (enumPairs.TryParseWireValue(wireValue, out enumId))
{
state[enumId] = true;
}
return(state);
}
/// <summary>
/// Validates the supplied value in terms of the parameters constraints. This method does nothing because
/// is not possible for a char value to be invalid.
/// </summary>
/// <param name="value">Value to validate, may be null in which case no validation is applied.</param>
/// <param name="isRequired">Set to true to check that this parameter is non-null.</param>
/// <param name="enumPairs">We need to check that the value is found inside this collection</param>
/// <returns>ValidationResult indicating whether the supplied value is valid.</returns>
protected override ValidationResult ValidateValue(char?value, bool isRequired, EnumPairCollection enumPairs)
{
if (isRequired && value == null)
{
return(new ValidationResult(ValidationResult.ResultType.Missing, ErrorMessages.NonOptionalParameterNotSupplied2));
}
if (value != null &&
enumPairs.HasValues &&
!enumPairs.TryParseWireValue(value.ToString(), out _))
{
var constraintText = string.Format(ErrorMessages.UnrecognisedEnumIdValue, value);
return(new ValidationResult(ValidationResult.ResultType.InvalidConstraint, constraintText,
ErrorMessages.InvalidControlValueError));
}
return(ValidationResult.ValidResult);
}
/// <summary>
/// Creates a new EnumState from the supplied set of EnumPairs and input FIX string.
/// </summary>
/// <param name="enumPairs">EnumPairs for this parameter.</param>
/// <param name="multiValueString">String containing one or more FIX wire values (space-separated).</param>
/// <returns></returns>
public static EnumState FromWireValue(EnumPairCollection enumPairs, string multiValueString)
{
_log.DebugFormat("Converting WireValue '{0}' to EnumState", multiValueString);
string[] inputValues = multiValueString.Split(new char[] { ';', ' ', ',' });
EnumState result = new EnumState(enumPairs.EnumIds);
foreach (string inputValue in inputValues)
{
string enumId;
if (!enumPairs.TryParseWireValue(inputValue, out enumId))
{
throw ThrowHelper.New <ArgumentException>(ExceptionContext, ErrorMessages.UnrecognisedEnumIdValue, inputValue);
}
result[enumId] = true;
}
_log.Debug(m => m("Converting EnumState from WireValue; state is {0}", result.ToString()));
return(result);
}