Wms自定义定时服务代码完善
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41
common/Tnb.Common/Extension/TaskExtensions.cs
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41
common/Tnb.Common/Extension/TaskExtensions.cs
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Tnb.Common.Extension
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{
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public static class TaskEx
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{
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public static Task<T> Catch<T, TError>(this Task<T> task, Func<TError, T> onError) where TError : Exception
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{
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var tcs = new TaskCompletionSource<T>(); // #A
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task.ContinueWith(innerTask =>
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{
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if (innerTask.IsFaulted && innerTask?.Exception?.InnerException is TError)
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tcs.SetResult(onError((TError)innerTask.Exception.InnerException)); // #B
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else if (innerTask.IsCanceled)
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tcs.SetCanceled(); // #B
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else if (innerTask.IsFaulted)
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tcs.SetException(innerTask?.Exception?.InnerException ?? throw new InvalidOperationException()); // #B
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else
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tcs.SetResult(innerTask.Result); // #B
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});
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return tcs.Task;
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}
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public static async Task Catch(this Task task, Action<Exception> exceptionHandler)
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{
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try
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{
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await task;
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}
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catch (Exception ex)
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{
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exceptionHandler(ex);
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}
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}
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}
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}
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