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GameServer/Contents/MyHome/DBquery/DBQMyhomeReadAll.cs

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+using Amazon.DynamoDBv2.DocumentModel;
+using ServerCommon;
+using ServerCore; using ServerBase;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace GameServer
+{
+    internal class DBQMyhomeReadAll : QueryExecutorBase
+    {
+        private string m_combination_key_for_pk = string.Empty;
+
+        private string m_pk = string.Empty;
+
+        private readonly List<MyhomeDoc> m_to_read_myhome_docs = new();
+
+        public DBQMyhomeReadAll(string combinationKeyForPK)
+            : base(typeof(DBQMyhomeReadAll).Name)
+        {
+            m_combination_key_for_pk = combinationKeyForPK;
+        }
+
+        //=====================================================================================
+        // DB 쿼리 직전에 준비해야 할 로직들을 작성한다.
+        //=====================================================================================
+        public override async Task<Result> onPrepareQuery()
+        {
+            var result = new Result();
+            var err_msg = string.Empty;
+
+            var owner = getOwner() as Player;
+            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
+
+            var doc = new MyhomeDoc();
+            doc.setCombinationKeyForPK(m_combination_key_for_pk);
+
+            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();
+
+            return await Task.FromResult(result);
+        }
+
+        //=====================================================================================
+        // onPrepareQuery()를 성공할 경우 호출된다.
+        //=====================================================================================
+        public override async Task<Result> onQuery()
+        {
+            var result = new Result();
+            var err_msg = string.Empty;
+
+            var owner = getOwner() as Player;
+            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
+
+            var query_batch = getQueryBatch();
+            NullReferenceCheckHelper.throwIfNull(query_batch, () => $"query_batch is null !!!");
+
+            var db_connector = query_batch.getDynamoDbConnector();
+            var query_config = db_connector.makeQueryConfigForReadByPKOnly(m_pk);
+
+            (result, var read_docs) = await db_connector.simpleQueryDocTypesWithQueryOperationConfig<MyhomeDoc>(query_config, eventTid: query_batch.getTransId());
+            if (result.isFail())
+            {
+                return result;
+            }
+
+            var myhome_agent_action = owner.getEntityAction<MyhomeAgentAction>();
+            NullReferenceCheckHelper.throwIfNull(myhome_agent_action, () => $"myhome_agent_action is null !!!");
+
+            foreach (var read_doc in read_docs)
+            {
+                result = await myhome_agent_action.tryAddMyHomeFromDoc(read_doc);
+                if (result.isFail())
+                {
+                    return result;
+                }
+
+                m_to_read_myhome_docs.Add(read_doc);
+            }
+
+            return await Task.FromResult(result);
+        }
+
+        public List<MyhomeDoc> getToReadMyHomeDocs() => m_to_read_myhome_docs;
+
+        //=====================================================================================
+        // 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;
+        }
+    }
+}