private void OnEvaluationEnded(SearchRequest exSearch)
{
m_Timer.Stop();
}
internal static IEnumerable <SearchItem> Path(SearchRequest selectRequest, SearchExpressionNode node, IEnumerable <SearchItem> items)
{
return(items.SelectMany(item => selectRequest.SelectPath(item)));
}
internal static IEnumerable <SearchItem> Default(SearchRequest selectRequest, SearchExpressionNode node, IEnumerable <SearchItem> items)
{
return(items);
}
internal static IEnumerable <SearchItem> Asset(SearchRequest selectRequest, SearchExpressionNode node, IEnumerable <SearchItem> items)
{
return(Object(selectRequest, node, items));
}
private SearchRequest BuildSearchRequest(SearchExpressionNode node)
{
List <ExpressionVariable> dynamicVariables = new List <ExpressionVariable>();
var searchQuery = Convert.ToString(node.value);
// Replace constants
if (node.variables != null)
{
foreach (var v in node.variables)
{
if (v.type != ExpressionType.Value)
{
if (v.source != null)
{
dynamicVariables.Add(v);
}
continue;
}
var constantValue = Convert.ToString(v.source.value);
if (String.IsNullOrEmpty(constantValue))
{
UnityEngine.Debug.LogWarning($"Constant value is null for {v.source.id}");
}
searchQuery = searchQuery.Replace($"${v.name}", constantValue);
}
}
if (dynamicVariables.Count == 0)
{
return(BuildFromSearchQuery(node, searchQuery));
}
var req = new SearchRequest(node.type);
var varFetchResolved = new Dictionary <string, bool>();
var varResults = new Dictionary <string, HashSet <string> >();
foreach (var v in dynamicVariables)
{
varFetchResolved[v.name] = false;
}
foreach (var v in dynamicVariables)
{
var varName = v.name;
var varRequest = BuildRequest(v.source);
req.DependsOn(varRequest);
varRequest.Resolve(items =>
{
if (!varResults.TryGetValue(varName, out var results))
{
results = new HashSet <string>();
varResults[varName] = results;
}
results.UnionWith(items.Select(i => i.id));
}, r =>
{
varFetchResolved[varName] = true;
if (varFetchResolved.All(kvp => kvp.Value))
{
var totalRequest = 1;
foreach (var vrs in varResults)
{
if (vrs.Value.Count == 0)
{
continue;
}
totalRequest *= vrs.Value.Count;
}
var queries = new string[totalRequest];
for (int i = 0; i < totalRequest; ++i)
{
queries[i] = searchQuery;
}
foreach (var vrs in varResults)
{
if (vrs.Value.Count == 0)
{
continue;
}
for (int i = 0; i < totalRequest;)
{
foreach (var varValue in vrs.Value)
{
queries[i] = queries[i].Replace($"${vrs.Key}", varValue);
++i;
}
}
}
requestCount += totalRequest;
foreach (var q in queries)
{
BuildFromSearchQuery(node, q).TransferTo(req);
}
}
});
}
return(req);
}