private EventDescription CreateEvent(IExecutionContext executionContext)
{
IReadOnlyCollection <FieldSelection> selections = executionContext
.CollectFields(
executionContext.OperationType,
executionContext.Operation.SelectionSet);
if (selections.Count == 1)
{
FieldSelection selection = selections.Single();
var argumentResolver = new ArgumentResolver();
Dictionary <string, ArgumentValue> argumentValues =
argumentResolver.CoerceArgumentValues(
selection,
executionContext.Variables);
List <ArgumentNode> arguments = new List <ArgumentNode>();
foreach (var argumentValue in argumentValues)
{
IInputType argumentType = argumentValue.Value.Type;
object value = argumentValue.Value.Value;
arguments.Add(new ArgumentNode(
argumentValue.Key,
argumentType.ParseValue(value)));
}
return(new EventDescription(selection.Field.Name, arguments));
}
else
{
// TODO : Error message
throw new QueryException();
}
}