public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options)
{
writer.WriteStartObject();
var converterInfo = ConverterInfo.GetConverterInfo(value.GetType());
// Poly writer
writer.WriteString(ConverterInfo.TypeInfoName, converterInfo.TypeDiscriminator);
foreach (var propertyInfo in converterInfo.Properties)
{
writer.WritePropertyName(propertyInfo.Name);
JsonSerializer.Serialize(writer, propertyInfo.GetValue(value), propertyInfo.PropertyType, options);
}
writer.WriteEndObject();
}
public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
if (reader.TokenType != JsonTokenType.StartObject)
{
throw new JsonException();
}
reader.Read();
if (reader.TokenType != JsonTokenType.PropertyName)
{
throw new JsonException();
}
if (reader.GetString() != ConverterInfo.TypeInfoName)
{
throw new JsonException();
}
reader.Read();
if (reader.TokenType != JsonTokenType.String)
{
throw new JsonException();
}
var converterInfo = ConverterInfo.GetConverterInfo(reader.GetString());
var value = Activator.CreateInstance(converterInfo.Type) as T;
while (reader.Read())
{
if (reader.TokenType == JsonTokenType.EndObject)
{
return(value);
}
if (reader.TokenType == JsonTokenType.PropertyName)
{
var propertyName = reader.GetString();
reader.Read();
var propertyInfo = converterInfo.Properties.FirstOrDefault(p => p.Name == propertyName);
propertyInfo.SetValue(value, JsonSerializer.Deserialize(ref reader, propertyInfo.PropertyType, options));
}
}
throw new JsonException();
}