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using System;
using System.Text.Json;
using System.Text.Json.Serialization;
namespace MediaBrowser.Common.Json.Converters
{
/// <summary>
/// Converts a nullable int32 object or value to/from JSON.
/// Required - some clients send an empty string.
/// </summary>
public class JsonNullableInt32Converter : JsonConverter<int?>
{
private readonly JsonConverter<int?> _baseJsonConverter;
/// <summary>
/// Initializes a new instance of the <see cref="JsonNullableInt32Converter"/> class.
/// </summary>
/// <param name="baseJsonConverter">The base json converter.</param>
public JsonNullableInt32Converter(JsonConverter<int?> baseJsonConverter)
{
_baseJsonConverter = baseJsonConverter;
}
/// <inheritdoc />
public override int? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
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, int? value, JsonSerializerOptions options)
{
_baseJsonConverter.Write(writer, value, options);
}
}
}
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