private async Task ExecuteOperationAsync(GraphQLOperation op, OutputObjectScope topScope)
{
var opOutItemSet = op.SelectionSubset.MappedItemSets.FirstOrDefault(fi => fi.ObjectTypeDef == op.OperationTypeDef);
var topFields = _requestContext.GetIncludedMappedFields(opOutItemSet);
topScope.Init(op.OperationTypeDef, topFields);
var parallel = _parallelQuery && op.OperationType == OperationType.Query && topFields.Count > 1;
// Note: if we go parallel here, note that the topScope is safe for concurrent thread access;
// it is only used to save op result value (SetValue method)
var executers = new List <OperationFieldExecuter>();
for (int fieldIndex = 0; fieldIndex < topFields.Count; fieldIndex++)
{
var opExecuter = new OperationFieldExecuter(_requestContext, topScope, fieldIndex);
executers.Add(opExecuter);
}
_requestContext.Metrics.ExecutionThreadCount = executers.Count;
if (parallel)
{
await ExecuteAllParallel(executers);
}
else
{
await ExecuteAllNonParallel(executers);
}
}
public FieldContext(RequestContext requestContext, OperationFieldExecuter fieldExecuter, MappedSelectionField mappedField,
IList <OutputObjectScope> allParentScopes = null)
{
_requestContext = requestContext;
_executer = fieldExecuter;
MappedField = mappedField;
FieldDef = MappedField.Resolver.Field;
TypeDef = FieldDef.TypeRef.TypeDef;
AllParentScopes = allParentScopes ?? OutputObjectScope.EmptyList;
if (MappedField.Field.SelectionSubset != null)
{
AllResultScopes = new List <OutputObjectScope>();
}
}
