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ServerBase/DB/QueryHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+
+
+using Amazon.Runtime;
+using Amazon.DynamoDBv2.Model;
+using Amazon.DynamoDBv2;
+using Amazon.DynamoDBv2.DocumentModel;
+
+
+
+using ServerCore; using ServerBase;
+
+
+namespace ServerBase;
+
+//==============================================================================================
+// QueryBatch 클래스의 주요 절차들을 처리해 주는 클래스 이다.
+//==============================================================================================
+public static class QueryHelper
+{
+    //==============================================================================================
+    // 1. DB 쿼리를 요청한다.
+    // 2. 배치쿼리를 요청한다.
+    //==============================================================================================
+    public static async Task<Result> sendQueryAndBusinessLog(QueryBatchBase batch)
+    {
+        var result = new Result();
+        var err_msg = string.Empty;
+
+        if (batch == null)
+        {
+            err_msg = $"Failed to DBQuery !!!, QueryBatchBase is null";
+            result.setFail(ServerErrorCode.FunctionInvalidParam, err_msg);
+            return result;
+        }
+        
+        Stopwatch? stopwatch = null;
+        var event_tid = string.Empty;
+
+        var server_logic = ServerLogicApp.getServerLogicApp();
+        ArgumentNullException.ThrowIfNull(server_logic);
+        var server_config = server_logic.getServerConfig();
+        ArgumentNullException.ThrowIfNull(server_config);
+        
+        if (true == server_config.PerformanceCheckEnable)
+        {
+            event_tid = string.IsNullOrEmpty(batch.getTransId()) ? System.Guid.NewGuid().ToString("N") : batch.getTransId();
+            stopwatch = Stopwatch.StartNew();
+        }
+
+        result = await sendQuery(batch);
+        if(result.isSuccess())
+        {
+            batch.sendBusinessLog();
+        }
+        
+        if (null != stopwatch)
+        {
+            var elapsed_msec = stopwatch.ElapsedMilliseconds;
+            stopwatch.Stop();
+
+            if (elapsed_msec > Constant.STOPWATCH_LOG_LIMIT_MSEC)
+            {
+                Log.getLogger().debug($"QueryBatch - Total Stopwatch Stop : ETID:{event_tid}, ElapsedMSec:{elapsed_msec}, LogAction:{batch.getLogAction().getLogActionType()}");   
+            }
+        }
+
+        return result;
+    }
+
+    //==============================================================================================
+    // 1. DB 쿼리를 요청한다.
+    // 2. 배치쿼리를 요청한다.
+    //==============================================================================================
+    private static async Task<Result> sendQuery(QueryBatchBase batch)
+    {
+        var result = new Result();
+        var err_msg = string.Empty;
+
+        if (batch == null)
+        {
+            err_msg = $"Failed to sendQuery !!!, QueryBatchBase is null";
+            result.setFail(ServerErrorCode.FunctionInvalidParam, err_msg);
+            return result;
+        }
+
+        if (false == batch.hasQuery())
+        {
+            err_msg = $"Not has DBQuery !!!";
+            result.setFail(ServerErrorCode.DynamoDbQueryNoRequested, err_msg);
+            return result;
+        }
+
+        result = await batch.prepareQueryWithStopwatch();
+        if (result.isFail())
+        {
+            return result;
+        }
+
+        result = await batch.doQueryWithStopwatch();
+        if (result.isFail())
+        {
+            return result;
+        }
+
+        return result;
+    }
+}
+
+
+//==============================================================================================
+// 쿼리 관련 확장 함수들을 정의하는 클래스 이다.
+//==============================================================================================
+
+public static class QueryExtension
+{
+    public static bool isSuccess(this CancellationReason reason)
+    {
+        return true == reason.Code.Equals(DynamoDbQueryExceptionNotifier.Success, StringComparison.OrdinalIgnoreCase);
+    }
+
+    public static string toExceptionString(this TransactionCanceledException e)
+    {
+        return $"[TransactionCanceledException] - exception:{e}";
+    }
+
+    public static string toExceptionString(this AmazonDynamoDBException e)
+    {
+        var err_msg = $"[AmazonDynamoDBException] - occurred:{e.Message}, ";
+        err_msg += (e.InnerException != null) ? $" Inner Exception:{e.InnerException.Message}," : "";
+        err_msg += $" exception:{e}";
+
+        return err_msg;
+
+    }
+
+    public static string toExceptionString(this AmazonServiceException e)
+    {
+        return $"[AmazonServiceException] - exception:{e}";
+    }
+
+    public static bool isEqualQuery<TDbRequestWithDocument>(this IQueryDbRequester dbRequester)
+        where TDbRequestWithDocument : IQueryDbRequester
+    {
+        if(dbRequester.GetType() == typeof(TDbRequestWithDocument))
+        {
+            return true;
+        }
+
+        return false;
+    }
+}