public void MergeActiveResults(RuleResultsCollection fromCollection, RuleResultsCollection toCollection, Predicate<RuleConditionsCollection> rulesEvaluator)
{
if (fromCollection == null || fromCollection.Data == null) return;
if (toCollection == null || toCollection.Data == null) return;
if (!_validators.IsValid(fromCollection)) return;
if (fromCollection.Conditions != null
&& rulesEvaluator != null
&& !rulesEvaluator(fromCollection.Conditions))
{
return;
}
var activeResults = GetActiveResults(fromCollection).ToList();
foreach (var activeResult in activeResults)
{
toCollection.Data.RemoveAll(d => d.Name == activeResult.Name);
toCollection.Data.Add(activeResult);
}
if (fromCollection.Results != null)
{
foreach (var innerResults in fromCollection.Results)
MergeActiveResults(innerResults, toCollection, rulesEvaluator);
}
}
public IEnumerable<RuleResult> GetActiveResults(RuleResultsCollection fromCollection)
{
if (fromCollection == null
|| fromCollection.Data == null)
return new List<RuleResult>();
if (!_validators.IsValid(fromCollection))
return new List<RuleResult>();
return fromCollection.Data.Where(ruleResult => _validators.IsValid(ruleResult));
}
public virtual RuleResultsCollection Evaluate()
{
var result = new RuleResultsCollection();
if (!_validators.IsValid(_rulesData))
return result;
var filters = new ResultsFilters(_validators);
filters.MergeActiveResults(_rulesData.DefaultResults, result, Evaluate);
if (!_validators.IsValid(_rulesData.Rules))
return result;
foreach (var rule in _rulesData.Rules.Data)
{
if (!_validators.IsValid(rule))
continue;
if (!_validators.IsValid(rule.Conditions))
continue;
var success = Evaluate(rule.Conditions);
if (success)
{
filters.MergeActiveResults(rule.OnSuccessResults, result, Evaluate);
if (!rule.ContinueOnSuccess)
break;
}
else
{
filters.MergeActiveResults(rule.OnFailureResults, result, Evaluate);
}
}
return result;
}
public Rule()
{
Conditions = new RuleConditionsCollection();
OnSuccessResults = new RuleResultsCollection();
OnFailureResults = new RuleResultsCollection();
}
