超时重试降级重试封装的方法

using Polly;
using Polly.Timeout;
using System;

   public class PolicyHelper
    {
        public static T Execute<T>(Func<T> ExecuteAction, Func<T> FallbackExecuteAction, Action<DelegateResult<T>, Context> onFallback = null, Action<Exception, int> onRetry=null)
        {

            T t = default(T);
            // 超时策略，执行目标委托超过 1 秒则视为超时，抛出异常。
            var timeoutPolicy = Policy.Timeout(1, TimeoutStrategy.Pessimistic);
            // 重试策略，重试 1次，每次打印信息。
            var retryPolicy = Policy.Handle<Exception>().Retry(1, (exception, i) =>
            {
                Console.WriteLine($"开始第 {i} 次重试...");
                if (onRetry == null) return;
                onRetry.Invoke(exception, i);

            });
            //降级执行
            Policy<T> policy = Policy<T>.Handle<Exception>().Fallback(

             FallbackExecuteAction()
            , (exp, context) =>
            {
                if (onFallback == null) return;
                onFallback(exp, context);

            });
            policy = policy.Wrap(retryPolicy);

            policy = policy.Wrap(timeoutPolicy);
            //执行方法
            t = policy.Execute(ExecuteAction);
            return t;

        }



        public static void Execute(Action ExecuteAction, Action FallbackExecuteAction=null, Action<Exception> onFallback = null, Action<Exception, int> onRetry = null)
        {

        
            // 超时策略，执行目标委托超过 1 秒则视为超时，抛出异常。
            var timeoutPolicy = Policy.Timeout(1, TimeoutStrategy.Pessimistic);
            // 重试策略，重试 1次，每次打印信息。
            var retryPolicy = Policy.Handle<Exception>().Retry(1, (exception, i) =>
            {
                Console.WriteLine($"开始第 {i} 次重试...");
                if (onRetry == null) return;
                onRetry.Invoke(exception, i);

            });
            //降级执行
            Policy policy = Policy.Handle<Exception>().Fallback( FallbackExecuteAction
             , exp =>
            {
                if (onFallback == null) return;
                onFallback(exp);

            });
            policy = policy.Wrap(retryPolicy);

            policy = policy.Wrap(timeoutPolicy);
            //执行方法
           policy.Execute(() =>
            {
                  ExecuteAction.Invoke();
            });
          

        }

    }