SHJX_cod/SHJX.Service.Common/Extend/ExtendUtil.cs

using System;
using System.Linq;
using System.Text.Json;
using System.Reflection;
using System.ComponentModel;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text.Encodings.Web;

namespace SHJX.Service.Common.Extend
{
    /// <summary>
    /// 扩展
    /// </summary>
    public static class ExtendUtil
    {
        #region 包含反转
        /// <summary>
        /// 包含反转
        /// </summary>
        /// <param name="value"></param>
        /// <param name="values"></param>
        /// <returns></returns>
        public static bool In(this object value, params object[] values) =>
            values.Contains(value);

        public static bool In<T>(this T value, params T[] values) where T : class =>
            values.Contains(value);
        #endregion

        /// <summary>
        /// 根据值得到中文备注
        /// </summary>
        /// <param name="t"></param>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string GetEnumDesc<T>(this Enum value) where T : Enum
        {
            Type t = typeof(T);
            FieldInfo[] fields = t.GetFields();
            for (int i = 1, count = fields.Length; i < count; i++)
            {
                if (Enum.Parse(t, fields[i].Name) != value) continue;
                var enumAttributes = (DescriptionAttribute[])fields[i].GetCustomAttributes(typeof(DescriptionAttribute), false);
                if (enumAttributes.Length > 0)
                {
                    return enumAttributes[0].Description;
                }
            }
            return string.Empty;
        }

        public static string Uuid => Guid.NewGuid().ToString("N").ToUpper();
        
        public static Collection<T> AddRange<T>(this Collection<T> collection, IEnumerable<T> items)
        {
            if (collection == null)
                throw new ArgumentNullException(nameof (collection));
            if (items == null)
                throw new ArgumentNullException(nameof (items));
            foreach (T obj in items)
                collection.Add(obj);
            return collection;
        }
        
        #region 深克隆
        /// <summary>
        /// Clones the specified list.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="List">The list.</param>
        /// <returns>List{``0}.</returns>
        public static List<T> Clone<T>(this List<T> list) where T : class
        {
            var deserializeSettings = JsonSerializer.Serialize(list, new JsonSerializerOptions
            {
                Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping
            });
            return JsonSerializer.Deserialize<List<T>>(deserializeSettings);
        }
        #endregion
    }
}