/// <summary>
/// Builds the view model.
/// </summary>
/// <param name="state">The state.</param>
/// <exception cref="Exception"></exception>
public virtual void BuildViewModel(ViewModelState state)
{
var jsonSerializer = CreateJsonSerializer();
var viewModelConverter = new ViewModelJsonConverter(true, Mapper)
{
UsedSerializationMaps = new HashSet <ViewModelSerializationMap>()
};
jsonSerializer.Converters.Add(viewModelConverter);
var writer = new JTokenWriter();
try
{
jsonSerializer.Serialize(writer, state.LastSentViewModel);
}
catch (Exception ex)
{
throw new Exception(
$"Could not serialize viewModel of type {state.LastSentViewModel.GetType().Name}. Serialization failed at property {writer.Path}.",
ex);
}
writer.Token["$csrfToken"] = state.CsrfToken;
var result = new JObject();
result["viewModel"] = writer.Token;
result["action"] = WebSocketRequestType.SuccessfulCommand;
state.ChangedViewModelJson = result;
}
/// <summary>
/// Serializes the view model.
/// </summary>
/// <param name="state">The state.</param>
/// <returns></returns>
public virtual string SerializeViewModel(ViewModelState state)
{
if (state.LastSentViewModelJson == null || state.ChangedViewModelJson["viewModel"] == null)
{
return(state.ChangedViewModelJson.ToString(JsonFormatting));
}
state.ChangedViewModelJson?.Remove("viewModelDiff");
state.ChangedViewModelJson["viewModelDiff"] = JsonUtils.Diff(
(JObject)state.LastSentViewModelJson["viewModel"],
(JObject)state.ChangedViewModelJson["viewModel"], true);
state.LastSentViewModelJson["viewModel"] = (JObject)state.ChangedViewModelJson["viewModel"].DeepClone();
state.ChangedViewModelJson.Remove("viewModel");
return(state.ChangedViewModelJson.ToString(JsonFormatting));
}
/// <summary>
/// Populates the view model from Json sent.
/// </summary>
/// <param name="state">The state.</param>
/// <param name="serializedPostData">The serialized post data.</param>
/// <returns></returns>
/// <exception cref="Exception"></exception>
public virtual string PopulateViewModel(ViewModelState state, string serializedPostData)
{
var data = state.LastSentViewModelJson = JObject.Parse(serializedPostData);
var viewModelToken = (JObject)data["viewModel"];
state.CsrfToken = viewModelToken["$csrfToken"].Value <string>();
var viewModelConverter = new ViewModelJsonConverter(true, Mapper);
var serializer = CreateJsonSerializer();
serializer.Converters.Add(viewModelConverter);
try
{
viewModelConverter.Populate(viewModelToken.CreateReader(), serializer, state.LastSentViewModel);
}
catch (Exception ex)
{
throw new Exception(
$"Could not deserialize viewModel of type {state.LastSentViewModel.GetType().Name}. {GeneralViewModelRecommendations}",
ex);
}
return((string)data["taskId"]);
}
public Connection()
{
ViewModelState = new ViewModelState();
}
