From 2f411e253a809a70a7f23b1684a6d436c9357e4e Mon Sep 17 00:00:00 2001
From: LongX <longxintx@outlook.com>
Date: Thu, 24 Jan 2019 15:35:40 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=9F=BA=E7=A1=80=E4=BB=BB?=
 =?UTF-8?q?=E5=8A=A1=E7=9B=B8=E5=85=B3=E6=8E=A5=E5=8F=A3?=
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---
 .../Interfaces/Job/BaseListJobExcutor.cs      |  88 +++++++++++++
 OSS.Common/Interfaces/Job/BaseTimerTrigger.cs | 117 ++++++++++++++++++
 OSS.Common/Interfaces/Job/IJobExecutor.cs     |  18 +++
 3 files changed, 223 insertions(+)
 create mode 100644 OSS.Common/Interfaces/Job/BaseListJobExcutor.cs
 create mode 100644 OSS.Common/Interfaces/Job/BaseTimerTrigger.cs
 create mode 100644 OSS.Common/Interfaces/Job/IJobExecutor.cs

diff --git a/OSS.Common/Interfaces/Job/BaseListJobExcutor.cs b/OSS.Common/Interfaces/Job/BaseListJobExcutor.cs
new file mode 100644
index 0000000..a02b3c3
--- /dev/null
+++ b/OSS.Common/Interfaces/Job/BaseListJobExcutor.cs
@@ -0,0 +1,88 @@
+using System.Collections.Generic;
+
+namespace OSS.Common.Interfaces.Job
+{
+    /// <summary>
+    ///  列表循环处理任务执行
+    ///  从 GetExcuteSource() 获取执行数据源，循环并通过 ExcuteItem() 执行个体任务，直到没有数据源返回
+    ///       如果执行时间过长，重复触发时 当前任务还在进行中，则不做任何处理
+    /// </summary>
+    public abstract class BaseListJobExcutor<IType> : IJobExecutor
+    {
+        /// <summary>
+        ///  运行状态
+        /// </summary>
+        public bool IsRuning { get; protected set; }
+
+
+        private int triggerTimes { get; set; } = 0;
+
+        /// <summary>
+        ///   开始任务
+        /// </summary>
+        public void StartJob()
+        {
+            //  任务依然在执行中，不需要再次唤起
+            if (IsRuning)
+                return;
+
+            IsRuning = true;
+            IList<IType> list = null; // 结清实体list
+
+            OnBegin(triggerTimes++);
+            do
+            {
+                for (var i = 0; IsRuning && i < list?.Count; i++)
+                {
+                    ExcuteItem(list[i], i);
+                }
+                list = GetExcuteSource();
+            } while (IsRuning && list?.Count > 0);
+            OnEnd(triggerTimes);
+            IsRuning = false;
+        }
+
+        /// <summary>
+        ///   获取list数据源
+        /// </summary>
+        /// <returns></returns>
+        protected virtual IList<IType> GetExcuteSource()
+        {
+            return null;
+        }
+
+        /// <summary>
+        ///  个体任务执行
+        /// </summary>
+        /// <param name="item">单个实体</param>
+        /// <param name="index">在数据源中的索引</param>
+        protected virtual void ExcuteItem(IType item, int index)
+        {
+        }
+
+        /// <summary>
+        /// 结束任务
+        /// </summary>
+        public void StopJob()
+        {
+            IsRuning = false;
+        }
+
+
+
+        /// <summary>
+        ///  此轮任务开始
+        /// </summary>
+        protected virtual void OnBegin(int triggerTimes)
+        {
+
+        }
+
+        /// <summary>
+        ///  此轮任务结束
+        /// </summary>
+        protected virtual void OnEnd(int triggerTimes)
+        {
+        }
+    }
+}
diff --git a/OSS.Common/Interfaces/Job/BaseTimerTrigger.cs b/OSS.Common/Interfaces/Job/BaseTimerTrigger.cs
new file mode 100644
index 0000000..8579067
--- /dev/null
+++ b/OSS.Common/Interfaces/Job/BaseTimerTrigger.cs
@@ -0,0 +1,117 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using OSS.Common.Plugs.LogPlug;
+
+namespace OSS.Common.Interfaces.Job
+{
+    /// <summary>
+    ///   定时器基础类
+    /// </summary>
+    public class BaseTimerTrigger:IDisposable
+    {
+        private Timer _timer;
+
+    private readonly TimeSpan _dueTime;
+    private readonly TimeSpan _periodTime;
+
+    private readonly IJobExecutor _jobExcutor;
+
+    /// <summary>
+    /// 构造函数
+    /// </summary>
+    /// <param name="dueTime">到期开始执行时间</param>
+    /// <param name="periodTime">间隔时间</param>
+    /// <param name="jobExcutor">任务执行者</param>
+    protected BaseTimerTrigger(TimeSpan dueTime, TimeSpan periodTime, IJobExecutor jobExcutor)
+    {
+        _dueTime = dueTime;
+        _periodTime = periodTime;
+        _jobExcutor = jobExcutor;
+    }
+
+
+    #region  基础方法
+
+    /// <summary>
+    ///   配置并触发定时器    
+    /// </summary>
+    /// <returns></returns>
+    private void StartTimerTrigger()
+    {
+        if (_timer == null)
+            _timer = new Timer(ExcuteJob, _jobExcutor, _dueTime, _periodTime);
+        else
+            _timer.Change(_dueTime, _periodTime);
+    }
+
+    /// <summary>
+    ///  停止定时器
+    /// </summary>
+    private void StopTimerTrigger()
+    {
+        _timer?.Change(Timeout.Infinite, Timeout.Infinite);
+    }
+
+  
+
+    /// <inheritdoc />
+    public void Dispose()
+    {
+        _timer?.Dispose();
+    }
+
+    #endregion
+
+    /// <summary>
+    ///  系统级任务执行启动
+    /// </summary>
+    /// <param name="cancellationToken"></param>
+    /// <returns></returns>
+    public virtual Task StartAsync(CancellationToken cancellationToken)
+    {
+        try
+        {
+            StartTimerTrigger();
+        }
+        catch (Exception e)
+        {
+            LogUtil.Error($"启动定时任务({nameof(GetType)})时出错，信息：{e}", string.Empty, "System_TimerJob");
+        }
+
+        return Task.CompletedTask;
+    }
+
+    /// <summary>
+    ///  系统级任务执行关闭
+    /// </summary>
+    /// <param name="cancellationToken"></param>
+    /// <returns></returns>
+    public virtual Task StopAsync(CancellationToken cancellationToken)
+    {
+        try
+        {
+            _jobExcutor.StopJob();
+            StopTimerTrigger();
+        }
+        catch (Exception e)
+        {
+            LogUtil.Error($"停止定时任务({nameof(GetType)})时出错，信息：{e}", String.Empty, "System_TimerJob");
+        }
+        return Task.CompletedTask;
+    }
+
+    private void ExcuteJob(object obj)
+    {
+        try
+        {
+            var excutor = obj as IJobExecutor;
+            excutor?.StartJob();
+        }
+        catch (Exception e)
+        {
+            LogUtil.Error($"执行任务({nameof(GetType)})时出错，信息：{e}", String.Empty, "System_TimerJob");
+        }
+    }
+}
+}
diff --git a/OSS.Common/Interfaces/Job/IJobExecutor.cs b/OSS.Common/Interfaces/Job/IJobExecutor.cs
new file mode 100644
index 0000000..1f990cb
--- /dev/null
+++ b/OSS.Common/Interfaces/Job/IJobExecutor.cs
@@ -0,0 +1,18 @@
+namespace OSS.Common.Interfaces.Job
+{
+    /// <summary>
+    ///  任务 提供者 接口
+    /// </summary>
+    public interface IJobExecutor
+    {
+        /// <summary>
+        /// 开始任务
+        /// </summary>
+        void StartJob();
+
+        /// <summary>
+        ///  结束任务
+        /// </summary>
+        void StopJob();
+    }
+}