static void Main12()
{
Console.WriteLine("Hello Chain of Responsibility Pattern!");
Approver wjzhang, gyang, jguo, meeting;
wjzhang = new Director("Wuji Zhang");
gyang = new VicePresident("Guo Yang");
jguo = new President("Jing Guo");
meeting = new Congress("Board");
wjzhang.SetNextApprover(gyang);
gyang.SetNextApprover(jguo);
jguo.SetNextApprover(meeting);
PurchaseRequest pr1 = new PurchaseRequest(45000, 10001, "Purchase Yi Tian Jian");
PurchaseRequest pr2 = new PurchaseRequest(60000, 10002, "Purchase <<Muxplay>>");
PurchaseRequest pr3 = new PurchaseRequest(160000, 10003, "Purchase <<Diamond Sutra>>");
PurchaseRequest pr4 = new PurchaseRequest(800000, 10004, "Purchase Peach Land");
wjzhang.ProcessRequest(pr1);
wjzhang.ProcessRequest(pr2);
wjzhang.ProcessRequest(pr3);
wjzhang.ProcessRequest(pr4);
Console.ReadLine();
}
public static void Execute()
{
ConsoleExtension.WriteSeparator("Purchase approval example");
Approver manager = new Manager();
Approver director = new Director();
Approver vicePresident = new VicePresident();
Approver president = new President();
manager
.RegisterNext(director)
.RegisterNext(vicePresident)
.RegisterNext(president)
.RegisterNext(ExecutiveMeeting.Instance);
var lowCostPurchase = new Purchase {
Number = 1, Cost = 400, Purpose = "Whiteboard purchase."
};
var mediumCostPurchase = new Purchase {
Number = 2, Cost = 3000, Purpose = "Laptops purchase."
};
var highCostPurchase = new Purchase {
Number = 3, Cost = 11500, Purpose = "Car purchase."
};
manager.Approve(lowCostPurchase);
manager.Approve(mediumCostPurchase);
manager.Approve(highCostPurchase);
}
static void Main(string[] args)
{
// Setup Chain of Responsibility
Approver larry = new Director();
Approver sam = new VicePresident();
Approver tammy = new President();
larry.SetSuccessor(sam);
sam.SetSuccessor(tammy);
// Generate and process purchase requests
Purchase p = new Purchase(2034, 350.00, "Assets");
larry.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
larry.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Y");
larry.ProcessRequest(p);
// Wait for user
Console.ReadKey();
}
private static void ChainOfResponsability()
{
try
{
// Setup Chain of Responsibility
Approver director = new Director();
Approver vicePresidente = new VicePresident();
Approver presidente = new President();
director.SetSuccessor(vicePresidente);
vicePresidente.SetSuccessor(presidente);
// Generate and process purchase requests
Purchase p = new Purchase(2034, 350.00, "Assets");
director.ProcessRequest(p);
p = new Purchase(2035, 72590.10, "Project X");
director.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Y");
director.ProcessRequest(p);
// Wait for user
Console.ReadKey();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
/// <summary>
/// 下面以公司采购东西为例子来实现责任链模式。公司规定，采购架构总价在1万之
/// 内，经理级别的人批准即可，总价大于1万小于2万5的则还需要副总进行批准，总
/// 价大于2万5小于10万的需要还需要总经理批准，而大于总价大于10万的则需要组
/// 织一个会议进行讨论。对于这样一个需求，最直观的方法就是设计一个方法，参数
/// 是采购的总价，然后在这个方法内对价格进行调整判断，然后针对不同的条件交
/// 给不同级别的人去处理，这样确实可以解决问题，但这样一来，我们就需要多重
/// if-else语句来进行判断，但当加入一个新的条件范围时，我们又不得不去修改原
/// 来设计的方法来再添加一个条件判断，这样的设计显然违背了“开-闭”原则。
/// 这时候，可以采用责任链模式来解决这样的问题
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
//实例化采购的请求
PurchaseRequest approveOfTeamLeader = new PurchaseRequest(4000.00, "Telphone");
PurchaseRequest approveOfVicePresident = new PurchaseRequest(10000.00, "Camera");
PurchaseRequest approveOfPresident = new PurchaseRequest(40000.00, "Second-hand car");
PurchaseRequest approveOfBoardDirectors = new PurchaseRequest(400000.00, "Second-hand car");
//实例化参与审批的管理者
Approver teamLeader = new TeamLeader("LearningHard");
Approver vicePresident = new VicePresident("Tony");
Approver president = new President("BossTom");
//设置责任链 管理者的层次排序
teamLeader.NextApprover = vicePresident;
vicePresident.NextApprover = president;
//处理请求
Console.WriteLine("小组长能审批的：");
teamLeader.ProcessRequest(approveOfTeamLeader);
Console.WriteLine("副总经理能审批的：");
teamLeader.ProcessRequest(approveOfVicePresident);
Console.WriteLine("总经理能审批的：");
teamLeader.ProcessRequest(approveOfPresident);
Console.WriteLine("董事会开会能审批的：");
teamLeader.ProcessRequest(approveOfBoardDirectors);
Console.Read();
}
public void Ex1()
{
/*
* Director can handle purchases below just: 10000
* VicePresident can handle purchases below: 25000
* President can handle purchases below: 100000
*
*/
Approver larry = new Director(); // har minst makt
Approver sam = new VicePresident();
Approver tammy = new President();
var client = new Client();
client.SetupChain(larry, sam, tammy);
client.ProcessPurchase(new Purchase(1, 50, "Assets"));
client.ProcessPurchase(new Purchase(2, 12000, "Project X"));
client.ProcessPurchase(new Purchase(3, 75000, "Project Y"));
client.ProcessPurchase(new Purchase(4, 2000000, "Project Z"));
CollectionAssert.AreEqual(new[] {
"Director approved request 1",
"VicePresident approved request 2",
"President approved request 3",
"No one can handle request :(",
},
_logger);
}
//LD_COR_000
public static void RunChainOfResponsabilityBehavioralPattern()
{
/*
* Let's apply the pattern to an example. In a bank where the approval route for mortgage applications are
* from the bank manager to the director then to the vice president, where the approval limits are:
* - Manager – 0 to 100k
* - Director – 100k to 250k
* - Vice President – anything above 250k
* We will pass the request to the manager until the application is processed
*
* Notice that the request is automatically processed by the correct person without the client code
* having to determine who will process the request
*/
LoanApprover a = new Manager();
LoanApprover b = new ChainOfResponsabilityBehavioralPattern.Director();
LoanApprover c = new VicePresident();
//LD here I setup the hierarchy
a.SetNextApprover(b);
b.SetNextApprover(c);
a.ApproveLoan(new Loan(50000)); //this will be approved by the manager
a.ApproveLoan(new Loan(200000)); //this will be approved by the director
a.ApproveLoan(new Loan(300000)); //this will be approved by the vice president
}
public void SwitchWithCondition()
{
Employee theEmployee = new VicePresident
{
Salary = 160,
Years = 7
};
//(theEmployee as Manager).NumberOfManaged = 3;
(theEmployee as VicePresident).StockShares = 6000;
(theEmployee as VicePresident).NumberOfManaged = 200;
switch (theEmployee)
{
// conditional case statement
case VicePresident vp when(vp.StockShares < 5000):
WriteLine($"Junior vice president with {vp.StockShares} shares");
break;
case VicePresident vp when(vp.StockShares >= 5000):
WriteLine($"Senior vp with {vp.StockShares} shares");
break;
case Manager m:
WriteLine($"Manager with {m.NumberOfManaged} reporting.");
break;
case Employee e:
WriteLine($"Employee with salary:{e.Salary}");
break;
}
}
/// <summary>
/// 测试初始情况.
/// </summary>
private static void Test1()
{
Approver wjzhang, gyang, jguo, meeting;
wjzhang = new Director("张无忌");
gyang = new VicePresident("杨过");
jguo = new President("郭靖");
meeting = new Congress("董事会");
//创建职责链
wjzhang.Successor = gyang;
gyang.Successor = jguo;
jguo.Successor = meeting;
//创建采购单
PurchaseRequest pr1 = new PurchaseRequest(45000, 10001, "购买倚天剑");
wjzhang.processRequest(pr1);
PurchaseRequest pr2 = new PurchaseRequest(60000, 10002, "购买《葵花宝典》");
wjzhang.processRequest(pr2);
PurchaseRequest pr3 = new PurchaseRequest(160000, 10003, "购买《金刚经》");
wjzhang.processRequest(pr3);
PurchaseRequest pr4 = new PurchaseRequest(800000, 10004, "购买桃花岛");
wjzhang.processRequest(pr4);
}
private void BuildSalesChain()
{
President president = new President(null);
VicePresident vicePresident = new VicePresident(president);
Director director = new Director(vicePresident);
Manager manager = new Manager(director);
Sales sales = new Sales(manager);
this.salesChain = sales;
}
public void Calc()
{
PurchaseRequest request = new PurchaseRequest("iphone", 8000);
Approver manager = new Manager("tom");
Approver vre = new VicePresident("lyn");
Approver pre = new President("marin");
manager.NextApprover = vre;
vre.NextApprover = pre;
manager.ProcessRequest(request);
}
static void Main(string[] args)
{
var director = new Director();
var visaPresident = new VicePresident();
var president = new President();
director.SetSuccessor(visaPresident);
visaPresident.SetSuccessor(president);
director.ProcessRequest(new Purchase(10000, 55000, "Project X"));
}
public static void Main()
{
Approver teamLead = new TeamLead();
Approver vicePresident = new VicePresident();
Approver president = new President();
teamLead.SetSuccessor(vicePresident);
vicePresident.SetSuccessor(president);
Purchase purchase = new Purchase(2019, 90000.00);
teamLead.ProcessRequest(purchase);
}
public void Run()
{
Approver mrDirector = new Director();
Approver mrVicePresident = new VicePresident();
Approver mrPresident = new President();
mrDirector.SetSuccessor(mrVicePresident);
mrVicePresident.SetSuccessor(mrPresident);
mrDirector.ProcessRequest(new Purchase(1, 350.00, "Assets"));
mrDirector.ProcessRequest(new Purchase(2, 32590.10, "Project X"));
mrDirector.ProcessRequest(new Purchase(3, 122100.00, "project Y"));
}
public static void Run()
{
PurchaseRequest req = new PurchaseRequest(60000, "Purchase PC for employee. ");
Approver approver = new Director("刘主任");
Approver approver1 = new President("张董事");
Approver approver2 = new VicePresident("王副董");
Approver approver3 = new Congress("董事会");
approver.SetSuccessor(approver2);
approver1.SetSuccessor(approver3);
approver2.SetSuccessor(approver1);
approver.HandleRequest(req);
}
public void TestChainOfResponsibility()
{
Approver vasya = new President(null);
Approver petya = new VicePresident(vasya);
Approver kirill = new Director(petya);
var purchase = new Purchase(2034, 350.00, "Project X");
kirill.ProcessRequest(purchase);
purchase = new Purchase(2035, 32590.10, "Project Y");
kirill.ProcessRequest(purchase);
purchase = new Purchase(2036, 122100.00, "Project Z");
kirill.ProcessRequest(purchase);
}
public static void Test()
{
Director Larry = new Director("Larry");
VicePresident Sam = new VicePresident("Sam");
President Tammy = new President("Tammy");
Larry.SetReporter(Sam);
Sam.SetReporter(Tammy);
PurchaseRequest reqx = new PurchaseRequest(2034, 350.00, "Project X");
PurchaseRequest reqy = new PurchaseRequest(2035, 32590.10, "Project Y");
PurchaseRequest reqz = new PurchaseRequest(2036, 122100.00, "Project Z");
Larry.ProcessRequest(reqx);
Larry.ProcessRequest(reqy);
Larry.ProcessRequest(reqz);
}
static void Main()
{
Approver larry = new Director();
Approver sam = new VicePresident();
Approver tammy = new President();
larry.SetSuccessor(sam);
sam.SetSuccessor(tammy);
Purchase p = new Purchase(2034, 350.00, "Assets");
larry.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
larry.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Y");
larry.ProcessRequest(p);
}
static void Main(string[] args)
{
Project projectX = new Project("Project X", 24000);
Project projectY = new Project("Project Y", 48000);
Project projectZ = new Project("Project Z", 79000);
Approver director = new Director();
Approver vp = new VicePresident();
Approver pres = new President();
director.SetSuccessor(vp);
vp.SetSuccessor(pres);
director.ApproveProject(projectX); // Will be approved by the director
director.ApproveProject(projectY); // Will be approved by the VP
director.ApproveProject(projectZ); // Will be approved by the President
}
static void ChainInvoke()
{
PurchaseRequest requestTelphone = new PurchaseRequest("Telphone", 8000.0);
PurchaseRequest requestSoftware = new PurchaseRequest("Ms System", 60000.0);
PurchaseRequest requestComputers = new PurchaseRequest("Computers", 80000.0);
Approver manager = new Manager("XiaoJun");
Approver vp = new VicePresident("XiaoHong");
Approver pre = new President("XiaoMing");
manager.NextApprover = vp;
vp.NextApprover = pre;
manager.ProcessRequest(requestTelphone);
manager.ProcessRequest(requestSoftware);
manager.ProcessRequest(requestComputers);
}
public static void Main()
{
Approver teamLead = new TeamLead();
Approver vp = new VicePresident();
Approver ceo = new President();
teamLead.SetSuccessor(vp);
vp.SetSuccessor(ceo);
var purchase = new Purchase(2034, 350.00);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(2035, 32590.10);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(2036, 122100.00);
teamLead.ProcessRequest(purchase);
}
private static void Main()
{
var larry = new Director();
var sam = new VicePresident();
var tammy = new President();
larry.SetSuccessor(sam);
sam.SetSuccessor(tammy);
var purchase = new Purchase(1231, 350.0, "Assets");
larry.ProcessRequest(purchase);
purchase = new Purchase(321, 12313.123, "Project X");
larry.ProcessRequest(purchase);
purchase = new Purchase(123123, 123123123.123, "Project Y");
larry.ProcessRequest(purchase);
}
internal static void Main()
{
Approver teamLead = new TeamLead();
Approver vicePresident = new VicePresident();
Approver president = new President();
teamLead.SetSuccessor(vicePresident);
vicePresident.SetSuccessor(president);
var purchase = new Purchase(2034, 350.00);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(2035, 32590.10);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(2036, 122100.00);
teamLead.ProcessRequest(purchase);
}
static void Main(string[] args)
{
Approver andrei = new Director();
Approver gelu = new VicePresident();
Approver valentin = new President();
andrei.SetSuccessor(gelu);
gelu.SetSuccessor(valentin);
var p = new Purchase(2034, 350.00, "Assets");
andrei.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
andrei.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Y");
andrei.ProcessRequest(p);
}
public static void Main()
{
Approver ronny = new Director();
Approver bobby = new VicePresident();
Approver ricky = new President();
ronny.SetSuccessor(bobby);
bobby.SetSuccessor(ricky);
Purchase p = new Purchase(8884, 350.00, "Assets");
ronny.ProcessRequest(p);
p = new Purchase(5675, 33390.10, "Project Poison");
ronny.ProcessRequest(p);
p = new Purchase(5676, 144400.00, "Project BBD");
ronny.ProcessRequest(p);
}
public static void ChainOfResponsibility()
{
Approver vicePresident = new VicePresident();
Approver president = new President();
Approver director = new Director();
director.SetSuccessor(vicePresident);
vicePresident.SetSuccessor(president);
var order1 = new Purchase(2034, 350.0, "Assets");
director.ProcessRequest(order1);
var order2 = new Purchase(2035, 35000.0, "Assets bigger amount.");
director.ProcessRequest(order2);
var order3 = new Purchase(2036, 350000.0, "Assets the biggest amount.");
director.ProcessRequest(order3);
}
public static void Main()
{
Approver teamLead = new TeamLead();
Approver vp = new VicePresident();
Approver ceo = new President();
teamLead.SetSuccessor(vp);
vp.SetSuccessor(ceo);
var purchase = new Purchase(2034, 350.00);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(2035, 32590.10);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(2036, 122100.00);
teamLead.ProcessRequest(purchase);
}
static void Main(string[] args)
{
PurchaseRequest requestTelphone = new PurchaseRequest(4000.0, "Telphone");
PurchaseRequest requestSoftware = new PurchaseRequest(10000.0, "Visual Studio");
PurchaseRequest requestComputers = new PurchaseRequest(40000.0, "Computers");
Approver manager = new Manager("LearningHard");
Approver Vp = new VicePresident("Tony");
Approver Pre = new President("BossTom");
// 设置责任链
manager.NextApprover = Vp;
Vp.NextApprover = Pre;
// 处理请求
manager.ProcessRequest(requestTelphone);
manager.ProcessRequest(requestSoftware);
manager.ProcessRequest(requestComputers);
Console.ReadLine();
}
static void Main()
{
//The chain of responsibility
Approver larry = new Director();
Approver sam = new VicePresident();
Approver tammy = new President();
larry.SetSuccesor(sam);
sam.SetSuccesor(tammy);
//Generate and process purchase requests
Purchase p = new Purchase(2034, 350.5, "Assets");
larry.ProcessRequest(p);
p = new new Purchase(2034, 2343.4, "Project X");
larry.ProcessRequest(p);
Console.ReadKey();
}
public void Run(IUnityContainer Container)
{
// Setup Chain of Responsibility
Approver larry = new Director();
Approver sam = new VicePresident();
Approver tammy = new President();
larry.SetSuccessor(sam);
sam.SetSuccessor(tammy);
// Generate and process purchase requests
Purchase p = new Purchase(2034, 350.00, "Assets");
larry.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
larry.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Y");
larry.ProcessRequest(p);
}
private static void ChainOfResponsibilityDemo()
{
Approver larry = new DesignPatterns.ChainOfResponsibility.Director();
Approver sam = new VicePresident();
Approver tammy = new DesignPatterns.ChainOfResponsibility.President();
larry.SetSuccessor(sam);
sam.SetSuccessor(tammy);
// Generate and process purchase requests
Purchase p = new Purchase(2034, 350.00, "Assets");
larry.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
larry.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Y");
larry.ProcessRequest(p);
}
public static void ChainOfRespRealWorld()
{
// Setup Chain of Responsibility
Approver larry = new Boss();
Approver sam = new VicePresident();
Approver tammy = new President();
larry.SetSuccessor(sam);
sam.SetSuccessor(tammy);
// Generate and process purchase requests
Purchase p = new Purchase(2034, 350.00, "Assets");
larry.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
larry.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Y");
larry.ProcessRequest(p);
}
static void Main(string[] args)
{
// Setup Chain of Responsibility
Approver larry = new Director();
Approver sam = new VicePresident();
Approver tammy = new President();
Approver July = new Chairperson();
larry.SetSuccessor(sam);
sam.SetSuccessor(July);
July.SetSuccessor(tammy);
// Generate and process purchase requests
Purchase purchase1 = new Purchase(2034, 5000.00, "Assets");
larry.ProcessRequest(purchase1);
Purchase purchase2 = new Purchase(2035, 20000.00, "Keyboard");
larry.ProcessRequest(purchase2);
Purchase purchase3 = new Purchase(2036, 30000.00, "Mouse");
larry.ProcessRequest(purchase3);
Purchase purchase4 = new Purchase(2037, 90000.00, "CPU");
larry.ProcessRequest(purchase4);
Purchase purchase5 = new Purchase(2038, 600000.00, "GPU");
larry.ProcessRequest(purchase5);
// Wait for user
Console.ReadKey();
}
public static void Main()
{
Approver teamLead = new TeamLead();
Approver vicePresident = new VicePresident();
Approver president = new President();
teamLead.SetNext(vicePresident);
vicePresident.SetNext(president);
var purchase = new Purchase(350, 1);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(24000, 2);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(32590, 3);
teamLead.ProcessRequest(purchase);
purchase = new Purchase(100001, 4);
teamLead.ProcessRequest(purchase);
}
// Entry point into console application.
static void Main()
{
// Setup Chain of Responsibility (bottom-up)
Approver larry = new Director();
Approver sam = new VicePresident();
Approver tammy = new President();
larry.SetSuccessor(sam);
sam.SetSuccessor(tammy);
// Generate and process purchase requests
Purchase p = new Purchase(2034, 350.00, "Assets");
larry.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
larry.ProcessRequest(p);
p = new Purchase(2036, 92100.00, "Project Y");
larry.ProcessRequest(p);
p = new Purchase(2037, 122100.00, "Project Y");
larry.ProcessRequest(p);
// Wait for user
Console.ReadKey();
}
public static void Main( string[] args )
{
// Setup Chain of Responsibility
Director Larry = new Director( "Larry" );
VicePresident Sam = new VicePresident( "Sam" );
President Tammy = new President( "Tammy" );
Larry.SetSuccessor( Sam );
Sam.SetSuccessor( Tammy );
// Generate and process different requests
PurchaseRequest rs = new PurchaseRequest(
2034, 350.00, "Supplies" );
Larry.ProcessRequest( rs );
PurchaseRequest rx = new PurchaseRequest(
2035, 32590.10, "Project X" );
Larry.ProcessRequest( rx );
PurchaseRequest ry = new PurchaseRequest(
2036, 122100.00, "Project Y" );
Larry.ProcessRequest( ry );
}
