public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (ReferenceEquals(value, null)) {
return _baseFormatter.WriteToStreamAsync(typeof (HalModel), new HalModel(), writeStream, content, transportContext);
}
var valType = value.GetType();
if (valType != typeof(HalModel))
{
if (valType.IsArray || value is IEnumerable<object>)
{
var data = value as IEnumerable<object>;
value = new HalModel(new { Count = data.Count() })
.AddLinks(new HalLink("self", RequestPath))
.AddEmbeddedCollection("values", data);
}
else
{
value = new HalModel(value);
}
type = typeof(HalModel);
}
var model = value as HalModel;
model.Config.IsRoot = true;
model.Config.RequestPathBase = RequestPathBase;
model.Config.Expands = Expands;
return _baseFormatter.WriteToStreamAsync(type, model, writeStream, content, transportContext);
}
internal static List<HalModel> GetFlattenedModelList(HalModel model, List<HalModel> stack = null)
{
if (stack == null)
stack = new List<HalModel>();
foreach (var embedded in model.Embeds.Values.SelectMany(m => m)) {
GetFlattenedModelList(embedded, stack);
}
stack.Add(model);
return stack;
}
public async Task Write_To_Stream_test() {
using (var stream = new MemoryStream()) {
var content = new StringContent("");
var formatter = new HalMediaTypeFormatter();
var model = new HalModel(new {
test = 1
});
Assert.NotNull(formatter);
await formatter.WriteToStreamAsync(typeof(HalModel), model, stream, content, null);
// Reset the position to ensure it can read
stream.Position = 0;
var reader = new StreamReader(stream);
string result = await reader.ReadToEndAsync();
Assert.Equal("{\"test\":1}", result);
}
}
