초기커밋

ServerCommon/Entity/DbQuery/DBQEntityDeleteAfterReadAll.cs

@@ -0,0 +1,153 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+
+using Newtonsoft.Json;
+using Amazon.DynamoDBv2;
+using Amazon.DynamoDBv2.Model;
+using Amazon.DynamoDBv2.DocumentModel;
+using Amazon.Runtime;
+using StackExchange.Redis;
+
+
+
+using ServerCore; using ServerBase;
+using ServerCommon.BusinessLogDomain;
+
+
+using DYNAMO_DB_TABLE_NAME = System.String;
+using DYNAMO_DB_TABLE_FULL_NAME = System.String;
+using SESSION_ID = System.Int32;
+using META_ID = System.UInt32;
+using ENTITY_GUID = System.String;
+using ACCOUNT_ID = System.String;
+using OWNER_GUID = System.String;
+using USER_GUID = System.String;
+using CHARACTER_GUID = System.String;
+using ITEM_GUID = System.String;
+
+
+
+namespace ServerCommon
+{
+    public class DBQEntityDeleteAfterReadAll<TDoc> : QueryExecutorBase
+        where TDoc : DynamoDbDocBase, new()
+    {
+        private string m_combination_key_for_pk = string.Empty;
+        private string m_combination_key_for_sk = string.Empty;
+
+        private string m_pk = string.Empty;
+        private string m_sk = string.Empty;
+
+        private List<Amazon.DynamoDBv2.DocumentModel.Document>? m_read_documents_nullable;
+
+        public DBQEntityDeleteAfterReadAll(string combinationKeyForPK, string combinationKeyForSK = "")
+            : base(typeof(DBQEntityDeleteAfterReadAll<TDoc>).Name)
+        {
+            m_combination_key_for_pk = combinationKeyForPK;
+            m_combination_key_for_sk = combinationKeyForSK;
+        }
+
+        //=====================================================================================
+        // DB 쿼리 직전에 준비해야 할 로직들을 작성한다.
+        //=====================================================================================
+        public override async Task<Result> onPrepareQuery()
+        {
+            await Task.CompletedTask;
+
+            var result = new Result();
+            var err_msg = string.Empty;
+
+            var owner = getOwner();
+            NullReferenceCheckHelper.throwIfNull(owner, () => "owner is null !!!");
+
+            var doc = new TDoc();
+
+            doc.setCombinationKeyForPKSK(m_combination_key_for_pk, m_combination_key_for_sk);
+
+            var error_code = doc.onApplyPKSK();
+            if (error_code.isFail())
+            {
+                err_msg = $"Failed to onApplyPKSK() !!! : {error_code.toBasicString()} - {toBasicString()}, {owner.toBasicString()}";
+                result.setFail(error_code, err_msg);
+                Log.getLogger().error(result.toBasicString());
+                return result;
+            }
+
+            m_pk = doc.getPK();
+            m_sk = doc.getSK();
+
+            return result;
+        }
+
+        //=====================================================================================
+        // onPrepareQuery()를 성공할 경우 호출된다.
+        //=====================================================================================
+        public override async Task<Result> onQuery()
+        {
+            var result = new Result();
+            var err_msg = string.Empty;
+
+            var owner = getOwner();
+            NullReferenceCheckHelper.throwIfNull(owner, () => "owner is null !!!");
+
+            var query_batch = getQueryBatch();
+            NullReferenceCheckHelper.throwIfNull(query_batch, () => $"query_batch is null !!! - {owner.toBasicString()}");
+
+            var server_logic = ServerLogicApp.getServerLogicApp();
+            var dynamo_db_connector = query_batch.getDynamoDbConnector();
+
+            var table = dynamo_db_connector.getTableByDoc<TDoc>();
+            var query_config = dynamo_db_connector.makeQueryConfigForReadByPKOnly(m_pk);
+
+            (result, var read_documents) = await table.simpleQueryWithQueryOperationConfig(query_config, query_batch.getTransId());
+            if(result.isFail())
+            {
+                return result;
+            }
+            m_read_documents_nullable = read_documents;
+
+            var query_runner = query_batch.getQueryRunner();
+            NullReferenceCheckHelper.throwIfNull(query_runner, () => $"query_runner is null !!! - {owner.toBasicString()}");
+
+            foreach (var document in m_read_documents_nullable)
+            {
+                var to_delete_doc = document.createDocumentQueryContext(table.TableName, QueryType.Delete);
+
+                result = await query_runner.tryRegisterQueryContext(to_delete_doc);
+                if (result.isFail())
+                {
+                    return result;
+                }
+            }
+
+            var msg = $"{this.getTypeName()} : tryDeleteCount:{m_read_documents_nullable.Count}, isUseTransact:{query_batch.isUseTransact()} - TransId:{query_batch.getTransId()}";
+            Log.getLogger().info(msg);
+
+            return result;
+        }
+
+        public List<Amazon.DynamoDBv2.DocumentModel.Document>? getReadDocuments() => m_read_documents_nullable;
+
+        //=====================================================================================
+        // DB 쿼리를 성공하고, doFnCommit()가 QueryResultType.NotCalledQueryFunc를 반환할 경우 호출된다.
+        //=====================================================================================
+        public override async Task onQueryResponseCommit()
+        {
+            await Task.CompletedTask;
+            return;
+        }
+
+        //=====================================================================================
+        // DB 쿼리를 실패하고, doFnRollback()가 QueryResultType.NotCalledQueryFunc를 반환할 경우 호출된다.
+        //=====================================================================================
+        public override async Task onQueryResponseRollback(Result errorResult)
+        {
+            await Task.CompletedTask;
+            return;
+        }
+    }
+}