review

src/JT808.Protocol/Internal/JT808_0x8900_Custom_Factory.cs

@@ -15,35 +15,53 @@ namespace JT808.Protocol.Internal
 
         public void Register(Assembly externalAssembly)
         {
-            foreach (var type in externalAssembly.GetTypes().Where(w => w.GetInterface(nameof(JT808_0x8900_BodyBase)) == typeof(JT808_0x8900_BodyBase)))
+            foreach (var item in externalAssembly.GetTypes().Where(x => x.GetConstructor(Type.EmptyTypes) != default))
             {
-                var instance = Activator.CreateInstance(type);
-                var attachid = (byte)type.GetProperty(nameof(JT808_0x0200_CustomBodyBase.AttachInfoId)).GetValue(instance);
-                if (Map.ContainsKey(attachid))
-                {
-                    throw new ArgumentException($"{type.FullName} {attachid} An element with the same key already exists.");
-                }
-                else
-                {
-                    Map.Add(attachid, instance);
-                }
+                Register(item);
             }
         }
 
-        public IJT808_0x8900_Custom_Factory SetMap<TJT808_0x8900_Custom_Factory>() where TJT808_0x8900_Custom_Factory : JT808_0x8900_BodyBase
+        public IJT808_0x8900_Custom_Factory SetMap<T>()
         {
-            Type type = typeof(TJT808_0x8900_Custom_Factory);
-            var instance = Activator.CreateInstance(type);
-            var passthroughType = (byte)type.GetProperty(nameof(JT808_0x8900_BodyBase.PassthroughType)).GetValue(instance);
-            if (Map.ContainsKey(passthroughType))
+            var type = typeof(T);
+            if (type.GetConstructor(Type.EmptyTypes) != default)
             {
-                throw new ArgumentException($"{type.FullName} {passthroughType} An element with the same key already exists.");
+                Register(type);
             }
             else
             {
-                Map.Add(passthroughType, instance);
+                throw new ArgumentException($"{type.FullName} must be parameterless constructor.");
             }
             return this;
         }
+
+        void Register(Type type)
+        {
+            var instance = Activator.CreateInstance(type);
+            if (instance is JT808_0x0200_CustomBodyBase jT808_0X0200_Custom)
+            {
+                var key = jT808_0X0200_Custom.AttachInfoId;
+                if (Map.ContainsKey(key))
+                {
+                    throw new ArgumentException($"{type.FullName} {key} An element with the same key already exists.");
+                }
+                else
+                {
+                    Map.Add(key, instance);
+                }
+            }
+            else if (instance is JT808_0x8900_BodyBase jT808_0X8900_Custom)
+            {
+                var key = jT808_0X8900_Custom.PassthroughType;
+                if (Map.ContainsKey(key))
+                {
+                    throw new ArgumentException($"{type.FullName} {key} An element with the same key already exists.");
+                }
+                else
+                {
+                    Map.Add(key, instance);
+                }
+            }
+        }
     }
 }