public string StringifyAllowedValues(Answer answer)
{
IEnumerable<string> allowedValues = answer.AllowedValues.Select(
value => String.Format("'{0}'", value)
);
return String.Join(", ", allowedValues);
}
internal override void Validate(Answer answer)
{
Valid = answer.Optional || !answerUtils.IsEmpty(answer);
if (!Valid)
{
ErrorMessage = "Please answer the question.";
}
}
internal override void Validate(Answer answer)
{
Valid = File.Exists(answer.Value);
if (!Valid)
{
ErrorMessage = string.Format("File '{0}' does not exist.", answer.Value);
}
}
public string DetermineDefaultValue(Answer answer)
{
if (answer.DefaultValueCallback != null)
{
return answer.DefaultValueCallback();
}
return answer.DefaultValue;
}
internal override void Validate(Answer answer)
{
Valid = !answerUtils.AreAllowedValuesSpecified(answer) || answerUtils.IsValueAllowed(answer);
if (!Valid)
{
string template = "Invalid answer. Only the following values are allowed: {0}.";
ErrorMessage = string.Format(template, answerUtils.StringifyAllowedValues(answer));
}
}
public bool Run(Answer answer)
{
foreach (BaseValidator validator in answer.Validators)
{
validator.SetAnswerUtils(answerUtils);
validator.Validate(answer);
if (!validator.Valid)
{
console.WriteError(validator.ErrorMessage);
return true;
}
}
return false;
}
internal abstract void Validate(Answer answer);
public bool IsValueAllowed(Answer answer)
{
return new List<string>(answer.AllowedValues).Contains(answer.Value);
}
public bool IsEmpty(Answer answer)
{
return answer.Value.Length == 0;
}
public bool IsDefaultValueSpecified(Answer answer)
{
return answer.DefaultValueCallback != null || answer.DefaultValue.Length > 0;
}
public bool AreAllowedValuesSpecified(Answer answer)
{
return answer.AllowedValues.Length > 0;
}
