private void CollectGraphTypes(HashSet <string> exists, List <IGraphType> graphTypes, IGraphType graphType)
{
if (graphType.OtherTypes.Any())
{
graphTypes.Add(graphType);
exists.Add(graphType.Name);
CollectGraphTypes(exists, graphTypes, _graphTypeProvider.GetGraphType(graphType.Type, false, false));
foreach (var type in graphType.OtherTypes)
{
CollectGraphTypes(exists, graphTypes, _graphTypeProvider.GetGraphType(type, false, false));
}
}
if (!graphType.Fields.Any())
{
return;
}
var graphTypeName = (!graphType.IsRequired && !graphType.IsEnumerable)
? graphType.Name
: GraphValueResolver.GetGraphTypeName(graphType.Type);
if (exists.Contains(graphTypeName))
{
return;
}
graphTypes.Add(_graphTypeProvider.TryGetGraphType(graphTypeName, out var value)? value: graphType);
exists.Add(graphTypeName);
foreach (var field in graphType.Fields.Values)
{
CollectGraphTypes(exists, graphTypes, field.GraphType);
}
}
private void SetArguments(GraphContext context, Operation operation)
{
foreach (var variable in operation.Variables)
{
var name = variable.Name;
var graphTypeName = "";
var namedType = variable.Type as NamedType;
if (namedType != null)
{
graphTypeName = namedType.Name;
}
else
{
var notNullType = variable.Type as NonNullType;
graphTypeName = $"{((NamedType)notNullType.Type).Name}!";
}
if (string.IsNullOrWhiteSpace(graphTypeName))
{
throw new GraphException($"Does not specify the GraphType for the argument '{variable.Name}'");
}
if (!_graphTypeProvider.TryGetGraphType(graphTypeName, out var graphType))
{
throw new GraphException($"Cannot resolve the GraphQL type '{graphTypeName}'");
}
var defaultValue = variable.DefaultValue == null
? null
: variable.DefaultValue.Value;
context.AddArgument(new NamedGraphType(name, graphType, defaultValue));
}
}
/// <summary>
/// Gets <see cref="IGraphType"/> based on specified name.
/// </summary>
/// <param name="provider">The <see cref="IGraphTypeProvider"/>.</param>
/// <param name="graphTypeName">Name of the graph type.</param>
/// <returns>The <see cref="IGraphType"/>.</returns>
public static IGraphType GetGraphType(this IGraphTypeProvider provider, string graphTypeName)
{
Guard.ArgumentNotNull(provider, nameof(provider));
Guard.ArgumentNotNullOrWhiteSpace(graphTypeName, nameof(graphTypeName));
return(provider.TryGetGraphType(graphTypeName, out var value)
? value
: throw new ArgumentException($"Cannot resolve specified GraphType '{graphTypeName}'", nameof(graphTypeName)));
}
