diff options
Diffstat (limited to 'MediaBrowser.Common/Json/Converters/JsonCommaDelimitedArrayConverter.cs')
| -rw-r--r-- | MediaBrowser.Common/Json/Converters/JsonCommaDelimitedArrayConverter.cs | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/MediaBrowser.Common/Json/Converters/JsonCommaDelimitedArrayConverter.cs b/MediaBrowser.Common/Json/Converters/JsonCommaDelimitedArrayConverter.cs new file mode 100644 index 000000000..bf7048c37 --- /dev/null +++ b/MediaBrowser.Common/Json/Converters/JsonCommaDelimitedArrayConverter.cs @@ -0,0 +1,53 @@ +using System; +using System.ComponentModel; +using System.Text.Json; +using System.Text.Json.Serialization; + +namespace MediaBrowser.Common.Json.Converters +{ + /// <summary> + /// Convert comma delimited string to array of type. + /// </summary> + /// <typeparam name="T">Type to convert to.</typeparam> + public class JsonCommaDelimitedArrayConverter<T> : JsonConverter<T[]> + { + private readonly TypeConverter _typeConverter; + + /// <summary> + /// Initializes a new instance of the <see cref="JsonCommaDelimitedArrayConverter{T}"/> class. + /// </summary> + public JsonCommaDelimitedArrayConverter() + { + _typeConverter = TypeDescriptor.GetConverter(typeof(T)); + } + + /// <inheritdoc /> + public override T[] Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) + { + if (reader.TokenType == JsonTokenType.String) + { + var stringEntries = reader.GetString()?.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries); + if (stringEntries == null || stringEntries.Length == 0) + { + return Array.Empty<T>(); + } + + var entries = new T[stringEntries.Length]; + for (var i = 0; i < stringEntries.Length; i++) + { + entries[i] = (T)_typeConverter.ConvertFrom(stringEntries[i].Trim()); + } + + return entries; + } + + return JsonSerializer.Deserialize<T[]>(ref reader, options); + } + + /// <inheritdoc /> + public override void Write(Utf8JsonWriter writer, T[] value, JsonSerializerOptions options) + { + JsonSerializer.Serialize(writer, value, options); + } + } +}
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