57 lines
2.0 KiB
C#
57 lines
2.0 KiB
C#
using System;
|
|
using System.Buffers;
|
|
using System.Buffers.Text;
|
|
using System.Globalization;
|
|
using System.Text.Json;
|
|
using System.Text.Json.Serialization;
|
|
|
|
namespace MediaBrowser.Common.Json.Converters
|
|
{
|
|
/// <summary>
|
|
/// Double to String JSON converter.
|
|
/// Web client send quoted doubles.
|
|
/// </summary>
|
|
public class JsonDoubleConverter : JsonConverter<double>
|
|
{
|
|
/// <summary>
|
|
/// Read JSON string as double.
|
|
/// </summary>
|
|
/// <param name="reader"><see cref="Utf8JsonReader"/>.</param>
|
|
/// <param name="typeToConvert">Type.</param>
|
|
/// <param name="options">Options.</param>
|
|
/// <returns>Parsed value.</returns>
|
|
public override double Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
|
|
{
|
|
if (reader.TokenType == JsonTokenType.String)
|
|
{
|
|
// try to parse number directly from bytes
|
|
var span = reader.HasValueSequence ? reader.ValueSequence.ToArray() : reader.ValueSpan;
|
|
if (Utf8Parser.TryParse(span, out double number, out var bytesConsumed) && span.Length == bytesConsumed)
|
|
{
|
|
return number;
|
|
}
|
|
|
|
// try to parse from a string if the above failed, this covers cases with other escaped/UTF characters
|
|
if (double.TryParse(reader.GetString(), out number))
|
|
{
|
|
return number;
|
|
}
|
|
}
|
|
|
|
// fallback to default handling
|
|
return reader.GetDouble();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Write double to JSON string.
|
|
/// </summary>
|
|
/// <param name="writer"><see cref="Utf8JsonWriter"/>.</param>
|
|
/// <param name="value">Value to write.</param>
|
|
/// <param name="options">Options.</param>
|
|
public override void Write(Utf8JsonWriter writer, double value, JsonSerializerOptions options)
|
|
{
|
|
writer.WriteStringValue(value.ToString(NumberFormatInfo.InvariantInfo));
|
|
}
|
|
}
|
|
}
|