private static ITextValidator GetOrSet(PredefinedTextValidation predefinedTextValidation,
Func <ITextValidator> setValidatorAction)
{
if (Validators.TryGetValue(predefinedTextValidation, out var validator))
{
return(validator);
}
validator = setValidatorAction();
Validators.Add(predefinedTextValidation, validator);
return(validator);
}
internal static ITextValidator GetValidator(PredefinedTextValidation predefinedTextValidation)
{
switch (predefinedTextValidation)
{
case PredefinedTextValidation.IsEmailAddress:
return(GetOrSet(predefinedTextValidation,
() => new RegexTextValidator(new Regex(
"^(?(\")(\".+?(?<!\\\\)\"@)|(([0-9a-z]((\\.(?!\\.))|[-!#\\$%&'\\*\\+/=\\?\\^`\\{\\}\\|~\\w])*)(?<=[0-9a-z])@))(?(\\[)(\\[(\\d{1,3}\\.){3}\\d{1,3}\\])|(([0-9a-z][-\\w]*[0-9a-z]*\\.)+[a-z0-9][\\-a-z0-9]{0,22}[a-z0-9]))$"))));
case PredefinedTextValidation.IsNull:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(value => value == null)));
case PredefinedTextValidation.IsNullOrEmpty:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(string.IsNullOrEmpty)));
case PredefinedTextValidation.IsNullOrWhitespace:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(string.IsNullOrWhiteSpace)));
case PredefinedTextValidation.IsNotNull:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(value => value != null)));
case PredefinedTextValidation.IsNotNullOrEmpty:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(value => !string.IsNullOrEmpty(value))));
case PredefinedTextValidation.IsNotNullOrWhitespace:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(value => !string.IsNullOrWhiteSpace(value))));
case PredefinedTextValidation.IsLettersOnly:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(value => !string.IsNullOrWhiteSpace(value) && value.ToCharArray().All(char.IsLetter))));
case PredefinedTextValidation.IsNumbersOnly:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(value => !string.IsNullOrWhiteSpace(value) && value.ToCharArray().All(char.IsDigit))));
case PredefinedTextValidation.IsLettersOrNumbersOnly:
return(GetOrSet(predefinedTextValidation, () => new FunctionTextValidator(value => !string.IsNullOrWhiteSpace(value) && value.ToCharArray().All(char.IsLetterOrDigit))));
default:
throw new ArgumentOutOfRangeException(nameof(predefinedTextValidation), predefinedTextValidation, null);
}
}
public static ITextValidator Get(PredefinedTextValidation predefinedTextValidation)
{
return(predefinedTextValidation.GetValidator());
}
public static ITextValidator GetValidator(this PredefinedTextValidation predefinedTextValidation)
{
return(PredefinedMapper.GetValidator(predefinedTextValidation));
}
