Merge branch 'dev' of https://git.tuotong-tech.com/tnb/tnb.server into dev

common/Tnb.Common/Extension/TaskExtensions.cs

@@ -25,6 +25,21 @@ namespace Tnb.Common.Extension
             return tcs.Task;
         }
 
+        public static async Task<T> Retry<T>(Func<Task<T>> task, int retries,     
+                                TimeSpan delay, CancellationToken cts = default) =>
+            await task().ContinueWith(async innerTask =>
+            {
+                cts.ThrowIfCancellationRequested();
+                if (innerTask.Status != TaskStatus.Faulted)
+                    return innerTask.Result;
+                if (retries == 0)
+                    throw innerTask.Exception ?? throw new Exception();
+                await Task.Delay(delay, cts);
+                return await Retry(task, retries - 1, delay, cts);
+            }).Unwrap();
+
+
+
         public static async Task Catch(this Task task, Func<Exception,Task> exceptionHandler)
         {
             try

common/Tnb.Common/Extension/TnbStringExtensions.cs

@@ -1,5 +1,6 @@
 using System.Text.RegularExpressions;
 using JNPF.Common.Extension;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
 
 namespace System;
 
@@ -183,4 +184,17 @@ public static class StringExtensions
     public static string ToCamel(this string str) => str.SplitWord().Select((a, i) => i == 0 ? a : a.UpperFirst()).JoinAsString("");
 
     #endregion
+
+    public static (string, string) LastSplit(this string str, char seperate)
+    {
+        int n = str.LastIndexOf(seperate);
+        if(n > 0)
+        {
+            return (str.Substring(0, n), str.Substring(n + 1));
+        }
+        else
+        {
+            return (str, null);
+        }
+    }
 }