public Translator(ICriterionParser parser)
{
if (parser == null)
{
return;
}
this._parser = parser;
}
/// <summary>
/// Recursively convert groups into criteria
/// </summary>
/// <param name="groups"></param>
/// <returns></returns>
private IEnumerable <ICriterion> ConvertGroupsToCriteria(IEnumerable <IGroup> groups)
{
IGroup previousGroup = null;
var criteria = new List <ICriterion>();
foreach (var group in groups)
{
if (group is CriterionGroup criterionGroup)
{
ICriterion criterion = null;
if (group.HasNestedGroups)
{
criterion = new NestedCriterion()
{
Criteria = this.ConvertGroupsToCriteria(group.NestedGroups)
};
}
else
{
ICriterionParser criterionParser = null;
if (group.Tokens.Any(i => i is RangeToken))
{
criterionParser = new RangeCriterionParser();
}
else
{
criterionParser = new CriterionParser();
}
criterion = criterionParser.Parse(group.Tokens);
criterion.Raw = group.Value;
}
// Join multiple conditions with a logical And/Or
if (previousGroup != null && previousGroup is LogicGroup logicGroup)
{
criterion.LogicOperator = ((LogicToken)logicGroup.Tokens[0]).Operator;
}
criteria.Add(criterion);
}
previousGroup = group;
}
return(criteria);
}
