private IList<IOverlayNode> AssignResponsibleNodes(QueryNode qn)
{
var responsibleNodes = new List<IOverlayNode>();
if (qn is QueryConditionNode) {
var qnc = qn as QueryConditionNode;
if (qnc.LValue.Name.StartsWith("__")) {
// we cannot process non-attribute based l-values - just ignore them?
return null;
} else {
var queryNodeKey = OverlayHashKeyPrv.GetHashKey(OverlayHelper.GetHashArgument(qnc.LValue.Name));
var arg = new GetOverlayNodeByKeyArg(queryNodeKey);
var responsibleNode = MainOverlaySrv.GetNodeByKey(arg.CopyStatistics(qn));
qn.CopyStatistics(arg);
responsibleNodes.Add(responsibleNode);
qnc.ResponsibleNode = responsibleNode;
qnc.Id = Guid.NewGuid().ToString();
return responsibleNodes;
}
} else if (qn is QueryGroupNode) {
var qng = qn as QueryGroupNode;
foreach (var innerQn in qng.Nodes) {
responsibleNodes.AddRange(AssignResponsibleNodes(innerQn.CopyStatistics(qn)));
}
qn.AggregateStatistics(qng.Nodes.ToArray());
return responsibleNodes;
} else {
throw new NotImplementedException();
}
}
public IOverlayNode GetNodeByKey(GetOverlayNodeByKeyArg key)
{
var result = FindKeySuccessor(new FindKeySuccessorArg(key.Key, true).CopyStatistics(key));
key = key.CopyStatistics(result);
return result.Node;
}