public override BrokenRules Validate <T>(T target, ValidationCallContext callContext)
{
callContext = callContext ?? ValidationCallContext.AllRules;
LogValidationRequested(target, callContext);
IEnumerable <InvalidValue> invalidValues = GetInvalidValues(target, callContext);
BrokenRules brokenRules = invalidValues.ToBrokenRules();
LogBrokenRules(this, brokenRules);
return(brokenRules);
}
private InvalidValue[] GetInvalidValues <T>(T target, ValidationCallContext callContext)
{
InvalidValue[] result = null;
IEnumerable <string> tagNames = GetTags(callContext);
double duration = With.PerformanceCounter(() => {
result = tagNames != null
? Engine.Validate(target, tagNames.ToArray())
: Engine.Validate(target);
}) * 1000;
LogValidationFinished(duration);
return(result);
}
private IEnumerable <string> GetTags(ValidationCallContext callContext)
{
if (callContext.NamedRulesets.Count() == 0)
{
//match all rules - ie tagged and untagged
return(null);
}
IEnumerable <string> tagNames =
callContext.NamedRulesets.Select(name => name == ValidationCallContext.NullSelector ? null : name);
if (tagNames.SequenceEqual(new string[] { null }))
{
//match untagged rules only
return(tagNames);
}
//match untagged rules and rules tagged with names matching ValidatorGroup names
return(tagNames.Union(new string[] { null }));
}