public override async Task VisitAsync(TermNode node, IQueryVisitorContext context)
{
var filteredNode = ApplyFilter(node, context);
if (filteredNode is GroupNode newGroupNode)
{
await base.VisitAsync(newGroupNode, context);
return;
}
if (String.Equals(node.Field, "status", StringComparison.OrdinalIgnoreCase) &&
!node.IsNegated.GetValueOrDefault() &&
String.Equals(node.Term, "open", StringComparison.OrdinalIgnoreCase))
{
HasStatusOpen = true;
}
if (QueryMode != EventStackFilterQueryMode.InvertedStacks)
{
return;
}
if (_stackNonInvertedFields.Contains(filteredNode.Field))
{
return;
}
var groupNode = node.GetGroupNode();
// check to see if we already inverted the group
if (groupNode.Data.ContainsKey("@IsInverted"))
{
return;
}
var referencedFields = await GetReferencedFieldsQueryVisitor.RunAsync(groupNode, context);
if (referencedFields.Any(f => _stackNonInvertedFields.Contains(f)))
{
// if we have referenced fields that are on the list of non-inverted fields and the operator is an OR then its an issue, mark invert unsuccessful
if (node.GetOperator(context) == GroupOperator.Or)
{
IsInvertSuccessful = false;
return;
}
node.IsNegated = node.IsNegated.HasValue ? !node.IsNegated : true;
return;
}
// negate the entire group
if (groupNode.Left != null)
{
groupNode.IsNegated = groupNode.IsNegated.HasValue ? !groupNode.IsNegated : true;
if (groupNode.Right != null)
{
groupNode.HasParens = true;
}
}
groupNode.Data["@IsInverted"] = true;
}
