diff options
Diffstat (limited to 'MediaBrowser.Common/Json/Converters')
4 files changed, 44 insertions, 194 deletions
diff --git a/MediaBrowser.Common/Json/Converters/JsonInt32Converter.cs b/MediaBrowser.Common/Json/Converters/JsonInt32Converter.cs deleted file mode 100644 index fe5dd6cd4..000000000 --- a/MediaBrowser.Common/Json/Converters/JsonInt32Converter.cs +++ /dev/null @@ -1,53 +0,0 @@ -using System; -using System.Buffers; -using System.Buffers.Text; -using System.Text.Json; -using System.Text.Json.Serialization; - -namespace MediaBrowser.Common.Json.Converters -{ - /// <summary> - /// Converts a GUID object or value to/from JSON. - /// </summary> - public class JsonInt32Converter : JsonConverter<int> - { - /// <inheritdoc /> - public override int Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) - { - static void ThrowFormatException() => throw new FormatException("Invalid format for an integer."); - ReadOnlySpan<byte> span = stackalloc byte[0]; - - if (reader.HasValueSequence) - { - long sequenceLength = reader.ValueSequence.Length; - Span<byte> stackSpan = stackalloc byte[(int)sequenceLength]; - reader.ValueSequence.CopyTo(stackSpan); - span = stackSpan; - } - else - { - span = reader.ValueSpan; - } - - if (!Utf8Parser.TryParse(span, out int number, out _)) - { - ThrowFormatException(); - } - - return number; - } - - /// <inheritdoc /> - public override void Write(Utf8JsonWriter writer, int value, JsonSerializerOptions options) - { - static void ThrowInvalidOperationException() => throw new InvalidOperationException(); - Span<byte> span = stackalloc byte[16]; - if (Utf8Formatter.TryFormat(value, span, out int bytesWritten)) - { - writer.WriteStringValue(span.Slice(0, bytesWritten)); - } - - ThrowInvalidOperationException(); - } - } -} diff --git a/MediaBrowser.Common/Json/Converters/JsonNonStringKeyDictionaryConverter.cs b/MediaBrowser.Common/Json/Converters/JsonNonStringKeyDictionaryConverter.cs deleted file mode 100644 index 0a36e1cb2..000000000 --- a/MediaBrowser.Common/Json/Converters/JsonNonStringKeyDictionaryConverter.cs +++ /dev/null @@ -1,82 +0,0 @@ -#nullable enable - -using System; -using System.Collections; -using System.Collections.Generic; -using System.Globalization; -using System.Reflection; -using System.Text.Json; -using System.Text.Json.Serialization; - -namespace MediaBrowser.Common.Json.Converters -{ - /// <summary> - /// Converter for Dictionaries without string key. - /// TODO This can be removed when System.Text.Json supports Dictionaries with non-string keys. - /// </summary> - /// <typeparam name="TKey">Type of key.</typeparam> - /// <typeparam name="TValue">Type of value.</typeparam> - internal sealed class JsonNonStringKeyDictionaryConverter<TKey, TValue> : JsonConverter<IDictionary<TKey, TValue>> - { - /// <summary> - /// Read JSON. - /// </summary> - /// <param name="reader">The Utf8JsonReader.</param> - /// <param name="typeToConvert">The type to convert.</param> - /// <param name="options">The json serializer options.</param> - /// <returns>Typed dictionary.</returns> - /// <exception cref="NotSupportedException">Not supported.</exception> - public override IDictionary<TKey, TValue> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) - { - var convertedType = typeof(Dictionary<,>).MakeGenericType(typeof(string), typeToConvert.GenericTypeArguments[1]); - var value = JsonSerializer.Deserialize(ref reader, convertedType, options); - var instance = (Dictionary<TKey, TValue>)Activator.CreateInstance( - typeToConvert, - BindingFlags.Instance | BindingFlags.Public, - null, - null, - CultureInfo.CurrentCulture); - var enumerator = (IEnumerator)convertedType.GetMethod("GetEnumerator")!.Invoke(value, null); - var parse = typeof(TKey).GetMethod( - "Parse", - 0, - BindingFlags.Public | BindingFlags.Static, - null, - CallingConventions.Any, - new[] { typeof(string) }, - null); - if (parse == null) - { - throw new NotSupportedException($"{typeof(TKey)} as TKey in IDictionary<TKey, TValue> is not supported."); - } - - while (enumerator.MoveNext()) - { - var element = (KeyValuePair<string?, TValue>)enumerator.Current; - instance.Add((TKey)parse.Invoke(null, new[] { (object?)element.Key }), element.Value); - } - - return instance; - } - - /// <summary> - /// Write dictionary as Json. - /// </summary> - /// <param name="writer">The Utf8JsonWriter.</param> - /// <param name="value">The dictionary value.</param> - /// <param name="options">The Json serializer options.</param> - public override void Write(Utf8JsonWriter writer, IDictionary<TKey, TValue> value, JsonSerializerOptions options) - { - var convertedDictionary = new Dictionary<string?, TValue>(value.Count); - foreach (var (k, v) in value) - { - if (k != null) - { - convertedDictionary[k.ToString()] = v; - } - } - - JsonSerializer.Serialize(writer, convertedDictionary, options); - } - } -} diff --git a/MediaBrowser.Common/Json/Converters/JsonNonStringKeyDictionaryConverterFactory.cs b/MediaBrowser.Common/Json/Converters/JsonNonStringKeyDictionaryConverterFactory.cs deleted file mode 100644 index 52f360740..000000000 --- a/MediaBrowser.Common/Json/Converters/JsonNonStringKeyDictionaryConverterFactory.cs +++ /dev/null @@ -1,59 +0,0 @@ -#nullable enable - -using System; -using System.Collections; -using System.Globalization; -using System.Reflection; -using System.Text.Json; -using System.Text.Json.Serialization; - -namespace MediaBrowser.Common.Json.Converters -{ - /// <summary> - /// https://github.com/dotnet/runtime/issues/30524#issuecomment-524619972. - /// TODO This can be removed when System.Text.Json supports Dictionaries with non-string keys. - /// </summary> - internal sealed class JsonNonStringKeyDictionaryConverterFactory : JsonConverterFactory - { - /// <summary> - /// Only convert objects that implement IDictionary and do not have string keys. - /// </summary> - /// <param name="typeToConvert">Type convert.</param> - /// <returns>Conversion ability.</returns> - public override bool CanConvert(Type typeToConvert) - { - if (!typeToConvert.IsGenericType) - { - return false; - } - - // Let built in converter handle string keys - if (typeToConvert.GenericTypeArguments[0] == typeof(string)) - { - return false; - } - - // Only support objects that implement IDictionary - return typeToConvert.GetInterface(nameof(IDictionary)) != null; - } - - /// <summary> - /// Create converter for generic dictionary type. - /// </summary> - /// <param name="typeToConvert">Type to convert.</param> - /// <param name="options">Json serializer options.</param> - /// <returns>JsonConverter for given type.</returns> - public override JsonConverter CreateConverter(Type typeToConvert, JsonSerializerOptions options) - { - var converterType = typeof(JsonNonStringKeyDictionaryConverter<,>) - .MakeGenericType(typeToConvert.GenericTypeArguments[0], typeToConvert.GenericTypeArguments[1]); - var converter = (JsonConverter)Activator.CreateInstance( - converterType, - BindingFlags.Instance | BindingFlags.Public, - null, - null, - CultureInfo.CurrentCulture); - return converter; - } - } -} diff --git a/MediaBrowser.Common/Json/Converters/JsonNullableStructConverter.cs b/MediaBrowser.Common/Json/Converters/JsonNullableStructConverter.cs new file mode 100644 index 000000000..cffc41ba3 --- /dev/null +++ b/MediaBrowser.Common/Json/Converters/JsonNullableStructConverter.cs @@ -0,0 +1,44 @@ +using System; +using System.Text.Json; +using System.Text.Json.Serialization; + +namespace MediaBrowser.Common.Json.Converters +{ + /// <summary> + /// Converts a nullable struct or value to/from JSON. + /// Required - some clients send an empty string. + /// </summary> + /// <typeparam name="T">The struct type.</typeparam> + public class JsonNullableStructConverter<T> : JsonConverter<T?> + where T : struct + { + private readonly JsonConverter<T?> _baseJsonConverter; + + /// <summary> + /// Initializes a new instance of the <see cref="JsonNullableStructConverter{T}"/> class. + /// </summary> + /// <param name="baseJsonConverter">The base json converter.</param> + public JsonNullableStructConverter(JsonConverter<T?> baseJsonConverter) + { + _baseJsonConverter = baseJsonConverter; + } + + /// <inheritdoc /> + public override T? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) + { + // Handle empty string. + if (reader.TokenType == JsonTokenType.String && ((reader.HasValueSequence && reader.ValueSequence.IsEmpty) || reader.ValueSpan.IsEmpty)) + { + return null; + } + + return _baseJsonConverter.Read(ref reader, typeToConvert, options); + } + + /// <inheritdoc /> + public override void Write(Utf8JsonWriter writer, T? value, JsonSerializerOptions options) + { + _baseJsonConverter.Write(writer, value, options); + } + } +} |