diff --git a/MediaBrowser.Common/Json/Converters/JsonNullableStructConverter.cs b/MediaBrowser.Common/Json/Converters/JsonNullableStructConverter.cs index cffc41ba34..0501f7b2a1 100644 --- a/MediaBrowser.Common/Json/Converters/JsonNullableStructConverter.cs +++ b/MediaBrowser.Common/Json/Converters/JsonNullableStructConverter.cs @@ -8,37 +8,38 @@ namespace MediaBrowser.Common.Json.Converters /// Converts a nullable struct or value to/from JSON. /// Required - some clients send an empty string. /// - /// The struct type. - public class JsonNullableStructConverter : JsonConverter - where T : struct + /// The struct type. + public class JsonNullableStructConverter : JsonConverter + where TStruct : struct { - private readonly JsonConverter _baseJsonConverter; - - /// - /// Initializes a new instance of the class. - /// - /// The base json converter. - public JsonNullableStructConverter(JsonConverter baseJsonConverter) - { - _baseJsonConverter = baseJsonConverter; - } - /// - public override T? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) + public override TStruct? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) { - // Handle empty string. + if (reader.TokenType == JsonTokenType.Null) + { + return null; + } + + // Token is empty string. if (reader.TokenType == JsonTokenType.String && ((reader.HasValueSequence && reader.ValueSequence.IsEmpty) || reader.ValueSpan.IsEmpty)) { return null; } - return _baseJsonConverter.Read(ref reader, typeToConvert, options); + return JsonSerializer.Deserialize(ref reader, options); } /// - public override void Write(Utf8JsonWriter writer, T? value, JsonSerializerOptions options) + public override void Write(Utf8JsonWriter writer, TStruct? value, JsonSerializerOptions options) { - _baseJsonConverter.Write(writer, value, options); + if (value.HasValue) + { + JsonSerializer.Serialize(writer, value.Value, options); + } + else + { + writer.WriteNullValue(); + } } } } diff --git a/MediaBrowser.Common/Json/Converters/JsonNullableStructConverterFactory.cs b/MediaBrowser.Common/Json/Converters/JsonNullableStructConverterFactory.cs new file mode 100644 index 0000000000..d5b54e3ca8 --- /dev/null +++ b/MediaBrowser.Common/Json/Converters/JsonNullableStructConverterFactory.cs @@ -0,0 +1,27 @@ +using System; +using System.Text.Json; +using System.Text.Json.Serialization; + +namespace MediaBrowser.Common.Json.Converters +{ + /// + /// Json nullable struct converter factory. + /// + public class JsonNullableStructConverterFactory : JsonConverterFactory + { + /// + public override bool CanConvert(Type typeToConvert) + { + return typeToConvert.IsGenericType + && typeToConvert.GetGenericTypeDefinition() == typeof(Nullable<>) + && typeToConvert.GenericTypeArguments[0].IsValueType; + } + + /// + public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options) + { + var structType = typeToConvert.GenericTypeArguments[0]; + return (JsonConverter)Activator.CreateInstance(typeof(JsonNullableStructConverter<>).MakeGenericType(structType)); + } + } +} \ No newline at end of file diff --git a/MediaBrowser.Common/Json/JsonDefaults.cs b/MediaBrowser.Common/Json/JsonDefaults.cs index 67f7e8f14a..6605ae9624 100644 --- a/MediaBrowser.Common/Json/JsonDefaults.cs +++ b/MediaBrowser.Common/Json/JsonDefaults.cs @@ -39,14 +39,9 @@ namespace MediaBrowser.Common.Json NumberHandling = JsonNumberHandling.AllowReadingFromString }; - // Get built-in converters for fallback converting. - var baseNullableInt32Converter = (JsonConverter)options.GetConverter(typeof(int?)); - var baseNullableInt64Converter = (JsonConverter)options.GetConverter(typeof(long?)); - options.Converters.Add(new JsonGuidConverter()); options.Converters.Add(new JsonStringEnumConverter()); - options.Converters.Add(new JsonNullableStructConverter(baseNullableInt32Converter)); - options.Converters.Add(new JsonNullableStructConverter(baseNullableInt64Converter)); + options.Converters.Add(new JsonNullableStructConverterFactory()); return options; }