/// <summary>
/// 解析JsonElement
/// </summary>
/// <param name="key"></param>
/// <param name="element"></param>
/// <param name="list"></param>
/// <param name="options"></param>
/// <param name="withRoot"></param>
private static void ParseJsonElement(string key, ref JsonElement element, IList <KeyValue> list, KeyNamingOptions options, bool withRoot = true)
{
switch (element.ValueKind)
{
case JsonValueKind.Null:
list.Add(new KeyValue(key, null));
break;
case JsonValueKind.String:
list.Add(new KeyValue(key, element.GetString()));
break;
case JsonValueKind.True:
case JsonValueKind.False:
case JsonValueKind.Number:
list.Add(new KeyValue(key, element.GetRawText()));
break;
case JsonValueKind.Object:
foreach (var item in element.EnumerateObject())
{
var ele = item.Value;
var itemKey = withRoot
? $"{key}{options.KeyDelimiter}{item.Name}"
: item.Name;
ParseJsonElement(itemKey, ref ele, list, options);
}
break;
case JsonValueKind.Array:
var index = 0;
foreach (var item in element.EnumerateArray())
{
var ele = item;
var itemKey = $"{key}{options.KeyArrayIndex(index)}";
ParseJsonElement(itemKey, ref ele, list, options);
index += 1;
}
break;
}
}
/// <summary>
/// 获取键值对
/// </summary>
/// <param name="key">根键名</param>
/// <param name="reader">utf8JsonReader</param>
/// <param name="options">选项</param>
/// <returns></returns>
protected virtual IList <KeyValue> GetKeyValueList(string key, ref Utf8JsonReader reader, KeyNamingOptions options)
{
if (options.KeyNamingStyle == KeyNamingStyle.ShortName)
{
return(GetShortNameKeyValueList(key, ref reader));
}
else
{
return(GetFullNameKeyValueList(key, ref reader, options));
}
}
/// <summary>
/// 获取fullName键值对
/// </summary>
/// <param name="key"></param>
/// <param name="reader"></param>
/// <param name="options"></param>
/// <returns></returns>
private static IList <KeyValue> GetFullNameKeyValueList(string key, ref Utf8JsonReader reader, KeyNamingOptions options)
{
using var doc = JsonDocument.ParseValue(ref reader);
var root = doc.RootElement;
var list = new List <KeyValue>();
var withRoot = options.KeyNamingStyle == KeyNamingStyle.FullNameWithRoot;
ParseJsonElement(key, ref root, list, options, withRoot);
return(list);
}
