职责链模式 ResponsibilityChainPattern

最新推荐文章于 2022-09-24 11:48:16 发布

最新推荐文章于 2022-09-24 11:48:16 发布 · 90 阅读

本文介绍了一个使用C#实现的责任链模式示例。该模式通过定义包含处理请求的对象集合来允许请求沿着这条链传递，直到有一个对象处理它为止。示例中展示了不同类型的工作角色如何根据特定条件处理任务，并将未处理的任务传递给下一个工作角色。

using System; public class Worker { private string _Name; private string _WorkType; private Worker _NextWorker; public Worker(string name,string worktype) { _Name = name; _WorkType = worktype; } public String Name { get { return _Name; } } public String WorkType { get { return _WorkType; } } public Worker NextWorker { get { return _NextWorker; } set { _NextWorker = value; } } protected void Do(string message) { Console.WriteLine(string.Format("{0}工人{1}正在处理任务:{2}", new object[] { _WorkType, _Name, message })); } public virtual void HandleWork(string message) { } }

职责抽象

using System; public class WaperWorker : Worker { public WaperWorker(string name, string worktype) : base(name, worktype) { } public override void HandleWork(string message) { int currentSecond = DateTime.Now.Second; if (currentSecond % 3 == 0) this.Do(message); else if (NextWorker != null) NextWorker.HandleWork(message); else Console.WriteLine("工作流程结束"); } }

职责A

using System; public class CheckWorker : Worker { public CheckWorker(string name, string worktype) : base(name, worktype) { } public override void HandleWork(string message) { int currentSecond = DateTime.Now.Second; if (currentSecond % 5 == 0) this.Do(message); else if (NextWorker != null) NextWorker.HandleWork(message); else Console.WriteLine("工作流程结束"); } }

职责B

using System; public class DeliverWorker : Worker { public DeliverWorker(string name, string worktype) : base(name, worktype) { } public override void HandleWork(string message) { int currentSecond = DateTime.Now.Second; if (currentSecond % 7 == 0) this.Do(message); else if (NextWorker != null) NextWorker.HandleWork(message); else Console.WriteLine("工作流程结束"); } }

职责C

using System; public class NormalWorker : Worker { public NormalWorker(string name, string worktype) : base(name, worktype) { } public override void HandleWork(string message) { int currentSecond = DateTime.Now.Second; if (currentSecond % 2 == 0) this.Do(message); else if (NextWorker != null) NextWorker.HandleWork(message); else Console.WriteLine("工作流程结束"); } }

职责D

using System; using System.Collections.Generic; using System.Text; namespace ResponsibilityChainPattern { class Program { static void Main(string[] args) { Worker normalWorkA = new NormalWorker("Jim", "装配工"); Worker normalWorkB = new NormalWorker("Lucy", "装配工"); Worker normalWorkC = new NormalWorker("Bill", "装配工"); Worker normalWorkD = new NormalWorker("Bruce", "装配工"); Worker normalWorkE = new NormalWorker("Claker", "装配工"); Worker WaperWorkA = new WaperWorker("Smith", "包装员"); Worker WaperWorkB = new WaperWorker("Frank", "包装员"); Worker CheckWorkA = new CheckWorker("Jeff", "质检员"); Worker DeliverWorkA = new DeliverWorker("Ben", "送货员"); normalWorkA.NextWorker = normalWorkB; normalWorkB.NextWorker = normalWorkC; normalWorkC.NextWorker = normalWorkD; normalWorkD.NextWorker = normalWorkE; normalWorkE.NextWorker = WaperWorkA; WaperWorkA.NextWorker = WaperWorkB; WaperWorkB.NextWorker = CheckWorkA; CheckWorkA.NextWorker = DeliverWorkA; normalWorkA.HandleWork("生产芭比娃娃"); Console.ReadKey(); } } }

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