添加项目文件。

2026-07-14 13:55:17 +08:00
parent 63759495f2
commit 8bbdf78731
335 changed files with 81415 additions and 0 deletions
@@ -0,0 +1,115 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace JY.Utility
+{
+    public static class CustomAttributeHelper
+    {
+        /// <summary>
+        /// Cache Data
+        /// </summary>
+        private static readonly Dictionary<string, string> Cache = new Dictionary<string, string>();
+
+        /// <summary>
+        /// 获取CustomAttribute Value
+        /// </summary>
+        /// <typeparam name="T">Attribute的子类型</typeparam>
+        /// <param name="sourceType">头部标有CustomAttribute类的类型</param>
+        /// <param name="attributeValueAction">取Attribute具体哪个属性值的匿名函数</param>
+        /// <returns>返回Attribute的值，没有则返回null</returns>
+        public static string GetCustomAttributeValue<T>(this Type sourceType, Func<T, string> attributeValueAction) where T : Attribute
+        {
+            return GetAttributeValue(sourceType, attributeValueAction, null);
+        }
+
+        /// <summary>
+        /// 获取CustomAttribute Value
+        /// </summary>
+        /// <typeparam name="T">Attribute的子类型</typeparam>
+        /// <param name="sourceType">头部标有CustomAttribute类的类型</param>
+        /// <param name="attributeValueAction">取Attribute具体哪个属性值的匿名函数</param>
+        /// <param name="name">field name或property name</param>
+        /// <returns>返回Attribute的值，没有则返回null</returns>
+        public static string GetCustomAttributeValue<T>(this Type sourceType, Func<T, string> attributeValueAction,
+            string name) where T : Attribute
+        {
+            return GetAttributeValue(sourceType, attributeValueAction, name);
+        }
+
+        private static string GetAttributeValue<T>(Type sourceType, Func<T, string> attributeValueAction,
+            string name) where T : Attribute
+        {
+            var key = BuildKey(sourceType, name);
+            if (!Cache.ContainsKey(key))
+            {
+                CacheAttributeValue(sourceType, attributeValueAction, name);
+            }
+
+            return Cache[key];
+        }
+
+        /// <summary>
+        /// 缓存Attribute Value
+        /// </summary>
+        private static void CacheAttributeValue<T>(Type type,
+            Func<T, string> attributeValueAction, string name)
+        {
+            var key = BuildKey(type, name);
+
+            var value = GetValue(type, attributeValueAction, name);
+
+            lock (key + "_attributeValueLockKey")
+            {
+                if (!Cache.ContainsKey(key))
+                {
+                    Cache[key] = value;
+                }
+            }
+        }
+
+        private static string GetValue<T>(Type type,
+            Func<T, string> attributeValueAction, string name)
+        {
+            object attribute = null;
+            if (string.IsNullOrEmpty(name))
+            {
+                attribute =
+                    type.GetCustomAttributes(typeof(T), false).FirstOrDefault();
+            }
+            else
+            {
+                var propertyInfo = type.GetProperty(name);
+                if (propertyInfo != null)
+                {
+                    attribute =
+                        propertyInfo.GetCustomAttributes(typeof(T), false).FirstOrDefault();
+                }
+
+                var fieldInfo = type.GetField(name);
+                if (fieldInfo != null)
+                {
+                    attribute = fieldInfo.GetCustomAttributes(typeof(T), false).FirstOrDefault();
+                }
+            }
+
+            return attribute == null ? null : attributeValueAction((T)attribute);
+        }
+
+        /// <summary>
+        /// 缓存Collection Name Key
+        /// </summary>
+        private static string BuildKey(Type type, string name)
+        {
+            if (string.IsNullOrEmpty(name))
+            {
+                return type.FullName;
+            }
+
+            return type.FullName + "." + name;
+        }
+    }
+}