优化QuestDb BulkCopy功能，并重命名为：ExecuteQuestDbBulkCopy

Providers/FreeSql.Provider.QuestDb/QuestDbGlobalExtensions.cs

@@ -31,12 +31,12 @@ public static partial class QuestDbGlobalExtensions
     /// <param name="args"></param>
     /// <returns></returns>
     public static string FormatQuestDb(this string that, params object[] args) =>
-        _QuestDbAdo.Addslashes(that, args);
+        _questDbAdo.Addslashes(that, args);
 
-    static QuestDbAdo _QuestDbAdo = new QuestDbAdo();
+    private static readonly QuestDbAdo _questDbAdo = new QuestDbAdo();
 
-    public static FreeSqlBuilder UseQuestDbRestAPI(this FreeSqlBuilder buider, string host, string username = "",
+    public static FreeSqlBuilder UseQuestDbRestAPI(this FreeSqlBuilder build, string host, string username = "",
-        string password = "") => RestAPIExtension.UseQuestDbRestAPI(buider, host, username, password);
+        string password = "") => RestAPIExtension.UseQuestDbRestAPI(build, host, username, password);
 
     /// <summary>
     /// 对于多个时间序列存储在同一个表中的场景，根据时间戳检索给定键或键组合的最新项。
@@ -53,6 +53,7 @@ public static partial class QuestDbGlobalExtensions
         LatestOnExtension.InternelImpl(timestamp, partition);
         return select;
     }
+
     /// <summary>
     /// 对于多个时间序列存储在同一个表中的场景，根据时间戳检索给定键或键组合的最新项。
     /// </summary>
@@ -113,13 +114,15 @@ public static partial class QuestDbGlobalExtensions
     /// <param name="unit">单位</param>
     /// <param name="alignToCalendar">对准日历</param>
     /// <returns></returns>
-    public static ISelect<T> SampleBy<T>(this ISelect<T> select, double time, SampleUnit unit, bool alignToCalendar = false)
+    public static ISelect<T> SampleBy<T>(this ISelect<T> select, double time, SampleUnit unit,
+        bool alignToCalendar = false)
     {
         SampleByExtension.IsExistence.Value = true;
         var samoleByTemple = $"{Environment.NewLine}SAMPLE BY {{0}}{{1}} {{2}}";
         string alignToCalendarTemple = "";
         if (alignToCalendar) alignToCalendarTemple = "ALIGN TO CALENDAR ";
-        SampleByExtension.SamoleByString.Value = string.Format(samoleByTemple, time.ToString(), (char)unit, alignToCalendarTemple);
+        SampleByExtension.SamoleByString.Value =
+            string.Format(samoleByTemple, time.ToString(), (char)unit, alignToCalendarTemple);
         return select;
     }
 
@@ -156,23 +159,25 @@ public static partial class QuestDbGlobalExtensions
     /// <param name="that"></param>
     /// <param name="dateFormat">导入时，时间格式 默认:yyyy/M/d H:mm:ss</param>
     /// <returns></returns>
-    public static async Task<int> ExecuteBulkCopyAsync<T>(this IInsert<T> that,string dateFormat = "yyyy/M/d H:mm:ss") where T : class
+    public static async Task<int> ExecuteQuestDbBulkCopyAsync<T>(this IInsert<T> that,
+        string dateFormat = "yyyy/M/d H:mm:ss") where T : class
     {
         //思路：通过提供的RestAPI imp，实现快速复制
         if (string.IsNullOrWhiteSpace(RestAPIExtension.BaseUrl))
         {
-            throw new Exception("BulkCopy功能需要启用RestAPI，启用方式：new FreeSqlBuilder().UseQuestDbRestAPI(\"localhost:9000\", \"username\", \"password\")");
+            throw new Exception(
+                "BulkCopy功能需要启用RestAPI，启用方式：new FreeSqlBuilder().UseQuestDbRestAPI(\"localhost:9000\", \"username\", \"password\")");
         }
+
         var result = 0;
-        var fileName = $"{Guid.NewGuid()}.csv";
+
-        var filePath = Path.Combine(AppContext.BaseDirectory, fileName);
         try
         {
             var client = QuestDbContainer.GetService<IHttpClientFactory>().CreateClient();
             var boundary = "---------------" + DateTime.Now.Ticks.ToString("x");
             var list = new List<Hashtable>();
             var insert = that as QuestDbInsert<T>;
-            var name = insert.InternalTableRuleInvoke();  //获取表名
+            var name = insert.InternalTableRuleInvoke(); //获取表名
             insert.InternalOrm.DbFirst.GetTableByName(name).Columns.ForEach(d =>
             {
                 if (d.DbTypeText == "TIMESTAMP")
@@ -181,7 +186,7 @@ public static partial class QuestDbGlobalExtensions
                     {
                         { "name", d.Name },
                         { "type", d.DbTypeText },
-                        { "pattern", dateFormat}
+                        { "pattern", dateFormat }
                     });
                 }
                 else
@@ -194,34 +199,37 @@ public static partial class QuestDbGlobalExtensions
                 }
             });
             var schema = JsonConvert.SerializeObject(list);
-            //写入CSV文件
+            using (MemoryStream stream = new MemoryStream())
-            using (var writer = new StreamWriter(filePath))
-            using (var csv = new CsvWriter(writer, CultureInfo.CurrentCulture))
             {
-                await csv.WriteRecordsAsync(insert._source);
+                //写入CSV文件
-            }
+                using (var writer = new StreamWriter(stream))
-
+                using (var csv = new CsvWriter(writer, CultureInfo.CurrentCulture))
-            var httpContent = new MultipartFormDataContent(boundary);
-            if (!string.IsNullOrWhiteSpace(RestAPIExtension.authorization))
-                client.DefaultRequestHeaders.Add("Authorization", RestAPIExtension.authorization);
-            httpContent.Add(new StringContent(schema), "schema");
-            httpContent.Add(new ByteArrayContent(File.ReadAllBytes(filePath)), "data");
-            //boundary带双引号 可能导致服务器错误情况
-            httpContent.Headers.Remove("Content-Type");
-            httpContent.Headers.TryAddWithoutValidation("Content-Type",
-                "multipart/form-data; boundary=" + boundary);
-            var httpResponseMessage =
-                await client.PostAsync($"{RestAPIExtension.BaseUrl}/imp?name={name}", httpContent);
-            var readAsStringAsync = await httpResponseMessage.Content.ReadAsStringAsync();
-            var splitByLine = SplitByLine(readAsStringAsync);
-            foreach (var s in splitByLine)
-            {
-                if (s.Contains("Rows"))
                 {
-                    var strings = s.Split('|');
+                    await csv.WriteRecordsAsync(insert._source);
-                    if (strings[1].Trim() == "Rows imported")
+                }
+
+                var httpContent = new MultipartFormDataContent(boundary);
+                if (!string.IsNullOrWhiteSpace(RestAPIExtension.authorization))
+                    client.DefaultRequestHeaders.Add("Authorization", RestAPIExtension.authorization);
+                httpContent.Add(new StringContent(schema), "schema");
+                httpContent.Add(new ByteArrayContent(stream.ToArray()), "data");
+                //boundary带双引号 可能导致服务器错误情况
+                httpContent.Headers.Remove("Content-Type");
+                httpContent.Headers.TryAddWithoutValidation("Content-Type",
+                    "multipart/form-data; boundary=" + boundary);
+                var httpResponseMessage =
+                    await client.PostAsync($"{RestAPIExtension.BaseUrl}/imp?name={name}", httpContent);
+                var readAsStringAsync = await httpResponseMessage.Content.ReadAsStringAsync();
+                var splitByLine = SplitByLine(readAsStringAsync);
+                foreach (var s in splitByLine)
+                {
+                    if (s.Contains("Rows"))
                     {
-                        result = Convert.ToInt32(strings[2].Trim());
+                        var strings = s.Split('|');
+                        if (strings[1].Trim() == "Rows imported")
+                        {
+                            result = Convert.ToInt32(strings[2].Trim());
+                        }
                     }
                 }
             }
@@ -230,17 +238,6 @@ public static partial class QuestDbGlobalExtensions
         {
             throw e;
         }
-        finally
-        {
-            try
-            {
-                File.Delete(filePath);
-            }
-            catch
-            {
-                // ignored
-            }
-        }
 
         return result;
     }
@@ -252,9 +249,9 @@ public static partial class QuestDbGlobalExtensions
     /// <param name="insert"></param>
     /// <param name="dateFormat">导入时，时间格式 默认:yyyy/M/d H:mm:ss</param>
     /// <returns></returns>
-    public static int ExecuteBulkCopy<T>(this IInsert<T> insert,string dateFormat = "yyyy/M/d H:mm:ss") where T : class
+    public static int ExecuteBulkCopy<T>(this IInsert<T> insert, string dateFormat = "yyyy/M/d H:mm:ss") where T : class
     {
-        return ExecuteBulkCopyAsync(insert,dateFormat).ConfigureAwait(false).GetAwaiter().GetResult();
+        return ExecuteQuestDbBulkCopyAsync(insert, dateFormat).ConfigureAwait(false).GetAwaiter().GetResult();
     }
 }
 
@@ -344,6 +341,7 @@ static class RestAPIExtension
             var base64 = Convert.ToBase64String(Encoding.UTF8.GetBytes($"{username}:{password}"));
             authorization = $"Basic {base64}";
         }
+
         //RestApi需要无参数
         buider.UseNoneCommandParameter(true);
         return buider;