public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
{
return(null);
}
else if (reader.TokenType != JsonToken.StartArray)
{
throw new JsonSerializationException("Expected start of JSON array");
}
else
{
var implementation = ConverterImplementationFactory.GetConverterImplementation(objectType);
if (implementation.CanRead)
{
return(implementation.ReadJson(reader, existingValue, serializer));
}
if (implementation.CanConstruct)
{
if (existingValue != null)
{
throw new JsonSerializationException($"Cannot deserialize into existing value of type '{existingValue.GetType()}' because it does not implement ICollection<T>");
}
return(implementation.ConstructFromJson(reader, serializer));
}
throw new JsonSerializationException($"Cannot deserialize value of type '{objectType}' because it does not implement ICollection<T> and it does not have a constructor that accepts an IEnumerable<T> or IAsyncEnumerable<T>.");
}
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
if (value == null)
{
writer.WriteNull();
}
else
{
var implementation = ConverterImplementationFactory.GetConverterImplementation(value.GetType());
implementation.WriteJsonAsync(writer, value).Wait();
}
}
