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53 lines
No EOL
1.8 KiB
C#
53 lines
No EOL
1.8 KiB
C#
using System;
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using System.ComponentModel;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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namespace MediaBrowser.Common.Json.Converters
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{
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/// <summary>
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/// Convert comma delimited string to array of type.
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/// </summary>
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/// <typeparam name="T">Type to convert to.</typeparam>
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public class JsonCommaDelimitedArrayConverter<T> : JsonConverter<T[]>
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{
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private readonly TypeConverter _typeConverter;
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/// <summary>
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/// Initializes a new instance of the <see cref="JsonCommaDelimitedArrayConverter{T}"/> class.
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/// </summary>
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public JsonCommaDelimitedArrayConverter()
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{
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_typeConverter = TypeDescriptor.GetConverter(typeof(T));
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}
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/// <inheritdoc />
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public override T[] Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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if (reader.TokenType == JsonTokenType.String)
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{
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var stringEntries = reader.GetString()?.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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if (stringEntries == null || stringEntries.Length == 0)
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{
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return Array.Empty<T>();
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}
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var entries = new T[stringEntries.Length];
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for (var i = 0; i < stringEntries.Length; i++)
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{
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entries[i] = (T)_typeConverter.ConvertFrom(stringEntries[i].Trim());
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}
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return entries;
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}
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return JsonSerializer.Deserialize<T[]>(ref reader, options);
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}
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/// <inheritdoc />
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public override void Write(Utf8JsonWriter writer, T[] value, JsonSerializerOptions options)
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{
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JsonSerializer.Serialize(writer, value, options);
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}
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}
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} |