public static IObjectTypeDescriptor <T> AsNode <T>(
this IObjectTypeDescriptor <T> descriptor,
NodeResolverDelegate <T> nodeResolver)
{
if (descriptor == null)
{
throw new ArgumentNullException(nameof(descriptor));
}
if (nodeResolver == null)
{
throw new ArgumentNullException(nameof(nodeResolver));
}
return(AsNode(descriptor,
sp => new NodeResolver <T>(nodeResolver)));
}
public IObjectFieldDescriptor NodeResolver(
NodeResolverDelegate <TNode, TId> nodeResolver)
{
Func <IServiceProvider, INodeResolver> nodeResolverFactory =
services => new NodeResolver <TNode, TId>(nodeResolver);
_typeDescriptor
.Interface <NodeType>()
.Extend()
.OnBeforeCreate(c =>
{
c.ContextData[RelayConstants.NodeResolverFactory] =
nodeResolverFactory;
});
return(_typeDescriptor.Field(_propertyOrMethod)
.Type <NonNullType <IdType> >());
}
public IObjectFieldDescriptor ResolveNode <TId>(
NodeResolverDelegate <object, TId> fieldResolver)
{
if (fieldResolver is null)
{
throw new ArgumentNullException(nameof(fieldResolver));
}
return(ResolveNode(async ctx =>
{
if (ctx.LocalContextData.TryGetValue(
WellKnownContextData.InternalId,
out object?o) && o is TId id)
{
return await fieldResolver(ctx, id).ConfigureAwait(false);
}
return null;
}));
}
public IObjectFieldDescriptor ResolveNode(NodeResolverDelegate <TNode, TId> fieldResolver)
{
ITypeConverter?typeConverter = null;
return(ResolveNode(async ctx =>
{
if (ctx.LocalContextData.TryGetValue(WellKnownContextData.InternalId, out var id))
{
if (id is TId c)
{
return await fieldResolver(ctx, c).ConfigureAwait(false);
}
typeConverter ??= ctx.GetTypeConverter();
c = typeConverter.Convert <object, TId>(id);
return await fieldResolver(ctx, c).ConfigureAwait(false);
}
return null;
}));
}
public IObjectFieldDescriptor NodeResolver <TId>(
NodeResolverDelegate <object, TId> nodeResolver) =>
ResolveNode(nodeResolver);
public IObjectFieldDescriptor NodeResolver(
NodeResolverDelegate <TNode, object> nodeResolver) =>
ResolveNode <object>(
public NodeResolver(NodeResolverDelegate <TNode> resolver)
{
_resolver = resolver
?? throw new ArgumentNullException(nameof(resolver));
}
public IObjectFieldDescriptor NodeResolver(NodeResolverDelegate <TNode, TId> nodeResolver) => ResolveNode(nodeResolver);
public IObjectFieldDescriptor NodeResolver(
NodeResolverDelegate <TNode, object> nodeResolver)
{
return(NodeResolver <object>(nodeResolver));
}
public IObjectFieldDescriptor ResolveNode(
NodeResolverDelegate <TNode, TId> fieldResolver) =>
ResolveNode(async ctx =>
