/// <summary>
/// Constructor.
/// </summary>
/// <param name="namingPolicy">
/// Optional naming policy for writing enum values.
/// </param>
/// <param name="allowIntegerValues">
/// True to allow undefined enum values. When true, if an enum value isn't
/// defined it will output as a number rather than a string.
/// </param>
public JsonStringEnumConverter(JsonNamingPolicy?namingPolicy = null, bool allowIntegerValues = true)
{
_namingPolicy = namingPolicy;
_converterOptions = allowIntegerValues
? EnumConverterOptions.AllowNumbers | EnumConverterOptions.AllowStrings
: EnumConverterOptions.AllowStrings;
}
public EnumConverter(EnumConverterOptions converterOptions, JsonNamingPolicy?namingPolicy, JsonSerializerOptions serializerOptions)
{
_converterOptions = converterOptions;
_namingPolicy = namingPolicy;
_nameCache = new ConcurrentDictionary <ulong, JsonEncodedText>();
string[] names = Enum.GetNames(TypeToConvert);
Array values = Enum.GetValues(TypeToConvert);
Debug.Assert(names.Length == values.Length);
JavaScriptEncoder?encoder = serializerOptions.Encoder;
for (int i = 0; i < names.Length; i++)
{
if (_nameCache.Count >= NameCacheSizeSoftLimit)
{
break;
}
T value = (T)values.GetValue(i) !;
ulong key = ConvertToUInt64(value);
string name = names[i];
_nameCache.TryAdd(
key,
namingPolicy == null
? JsonEncodedText.Encode(name, encoder)
: FormatEnumValue(name, encoder));
}
}
public JsonValueConverterEnumWithAttributeSupport(EnumConverterOptions options, [CanBeNull] JsonNamingPolicy namingPolicy = null)
{
_converterOptions = options;
if (namingPolicy != null)
{
_nameCache = new ConcurrentDictionary <string, string>();
}
else
{
namingPolicy = new JsonDefaultNamingPolicy();
}
_namingPolicy = namingPolicy;
}
public EnumConverter(EnumConverterOptions options, JsonNamingPolicy?namingPolicy)
{
_converterOptions = options;
if (namingPolicy != null)
{
_nameCache = new ConcurrentDictionary <string, string>();
}
else
{
namingPolicy = JsonNamingPolicy.Default;
}
_namingPolicy = namingPolicy;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="namingPolicy">Naming policy for writing enum values [Optional.</param>
/// <param name="allowIntegerValues">True to allow undefined enum values. When true, if an enum value isn't defined it will output as a number rather than a string.</param>
/// <param name="parseEnumMemberAttribute">Parse using <see cref="Runtime.Serialization.EnumMemberAttribute"/>, default is <see langword="true"/>.</param>
/// <param name="parseDisplayAttribute">Parse using <see cref="ComponentModel.DataAnnotations.DisplayAttribute"/>, default is <see langword="false"/>.</param>
/// <param name="parseDescriptionAttribute">Parse using <see cref="ComponentModel.DescriptionAttribute"/>, default is <see langword="false"/>.</param>
public JsonStringEnumConverterWithAttributeSupport([CanBeNull] JsonNamingPolicy namingPolicy = null, bool allowIntegerValues = true,
bool parseEnumMemberAttribute = true, bool parseDisplayAttribute = false, bool parseDescriptionAttribute = false)
{
_namingPolicy = namingPolicy;
_converterOptions = allowIntegerValues
? EnumConverterOptions.AllowNumbers | EnumConverterOptions.AllowStrings
: EnumConverterOptions.AllowStrings;
if (parseEnumMemberAttribute)
{
_converterOptions |= EnumConverterOptions.ParseEnumMemberAttribute;
}
if (parseDisplayAttribute)
{
_converterOptions |= EnumConverterOptions.ParseDisplayAttribute;
}
if (parseDescriptionAttribute)
{
_converterOptions |= EnumConverterOptions.ParseDescriptionAttribute;
}
}
public EnumConverter(EnumConverterOptions converterOptions, JsonNamingPolicy?namingPolicy, JsonSerializerOptions serializerOptions)
{
_converterOptions = converterOptions;
_namingPolicy = namingPolicy;
_nameCacheForWriting = new ConcurrentDictionary <ulong, JsonEncodedText>();
if (namingPolicy != null)
{
_nameCacheForReading = new ConcurrentDictionary <string, T>();
}
#if NETCOREAPP
string[] names = Enum.GetNames <T>();
T[] values = Enum.GetValues <T>();
#else
string[] names = Enum.GetNames(TypeToConvert);
Array values = Enum.GetValues(TypeToConvert);
#endif
Debug.Assert(names.Length == values.Length);
JavaScriptEncoder?encoder = serializerOptions.Encoder;
for (int i = 0; i < names.Length; i++)
{
#if NETCOREAPP
T value = values[i];
#else
T value = (T)values.GetValue(i) !;
#endif
ulong key = ConvertToUInt64(value);
string name = names[i];
string jsonName = FormatJsonName(name, namingPolicy);
_nameCacheForWriting.TryAdd(key, JsonEncodedText.Encode(jsonName, encoder));
_nameCacheForReading?.TryAdd(jsonName, value);
}
}
public EnumConverter(EnumConverterOptions converterOptions, JsonSerializerOptions serializerOptions)
: this(converterOptions, namingPolicy : null, serializerOptions)
{
}
internal static JsonConverter Create(Type enumType, EnumConverterOptions converterOptions, JsonNamingPolicy?namingPolicy, JsonSerializerOptions serializerOptions)
{
return((JsonConverter)Activator.CreateInstance(
GetEnumConverterType(enumType),
new object?[] { converterOptions, namingPolicy, serializerOptions }) !);
}
public EnumConverter(EnumConverterOptions options)
: this(options, namingPolicy : null)
{
}
public JsonConverterEnum(EnumConverterOptions options)
: this(options, namingPolicy : null)
{
}
