Update mongodb

Src/Asp.NetCore2/MongoDb.Ado.data/ExecuteNonQueryItemsAsync/ExecuteHandlerFactoryAsync.cs

@@ -0,0 +1,37 @@
+using MongoDb.Ado.data;
+using MongoDB.Bson;
+using MongoDB.Driver;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MongoDb.Ado.data
+{
+    public class ExecuteHandlerFactoryAsync
+    {
+        public readonly static Dictionary<string, IMongoOperationHandlerAsync> Items = new Dictionary<string, IMongoOperationHandlerAsync>(StringComparer.OrdinalIgnoreCase)
+            {
+                { "insert", new InsertHandlerAsync() },
+                { "insertmany", new InsertManyHandlerAsync() },
+                { "update", new UpdateHandlerAsync() },
+                { "updatemany", new UpdateManyHandlerAsync() },
+                { "delete", new DeleteHandlerAsync() },
+                { "deletemany", new DeleteManyHandlerAsync() },
+                { "find", new NonFindHandlerAsync() }
+            };
+
+
+        public static Task<int> HandlerAsync(string operation, string json, IMongoCollection<BsonDocument> collection)
+        {
+            MongoDbMethodUtils.ValidateOperation(operation);
+            var handlers = ExecuteHandlerFactoryAsync.Items;
+
+            if (!handlers.TryGetValue(operation, out var handler))
+                throw new NotSupportedException($"不支持的操作类型: {operation}");
+            handler.operation = operation;
+            return handler.HandleAsync(collection, json);
+        }
+
+    }
+}