中介者模式

  1 // 中介者模式.cpp : 定义控制台应用程序的入口点。
  2 //
  3 
  4 #include "stdafx.h"
  5 #include<iostream>
  6 #include<string>
  7 using namespace std;
  8 class Colleage
  9 {
 10 public:
 11     Colleage(){}
 12     virtual~Colleage(){}
 13 };
 14 class Mediator
 15 {
 16 public:
 17     Mediator(){}
 18     virtual ~Mediator(){}
 19     virtual void declare(string ,Colleage *)=0;
 20 };
 21 
 22 class Concretecolleage1:public  Colleage
 23 {
 24 private:
 25     Mediator *mediator;
 26 public:
 27     Concretecolleage1(Mediator * m)
 28     {
 29         mediator=m;
 30     }
 31     virtual~Concretecolleage1(){}
 32     void talk(string s)
 33     {
 34         mediator->declare(s,this);
 35     }
 36     void receive(string s)
 37     {
 38         cout<<"Concretecolleage1接收到对方的消息："<<s<<endl;
 39     }
 40 };
 41 class Concretecolleage2:public  Colleage
 42 {
 43 private:
 44     Mediator *mediator;
 45 public:
 46     Concretecolleage2(Mediator * m)
 47     {
 48         mediator=m;
 49     }
 50     virtual~Concretecolleage2(){}
 51     void talk(string s)
 52     {
 53         mediator->declare(s,this);
 54     }
 55     void receive(string s)
 56     {
 57         cout<<"Concretecolleage2接收到对方的消息："<<s<<endl;
 58     }
 59 };
 60 class Concretemediator:public Mediator
 61 {
 62 private:
 63     Concretecolleage1 *concretecolleage1;
 64     Concretecolleage2 *concretecolleage2;
 65 public:
 66     Concretemediator(){}    
 67     virtual ~Concretemediator(){}
 68     void setConcretecolleage1(Concretecolleage1 * value)
 69     {
 70         concretecolleage1=value;
 71     }
 72     void setConcretecolleage2(Concretecolleage2 * value)
 73     {
 74         concretecolleage2=value;
 75     }
 76     virtual void declare(string s,Colleage * m)
 77     {
 78         if(m==concretecolleage1)
 79         {
 80             concretecolleage2->receive(s);
 81         }
 82 
 83         if(m==concretecolleage2)
 84         {
 85             concretecolleage1->receive(s);
 86         }
 87     }
 88 };
 89 
 90 
 91 int _tmain(int argc, _TCHAR* argv[])
 92 {
 93     //设置两个要通信的人和一个中介者
 94     Concretemediator *phone=new Concretemediator();
 95     Concretecolleage1 * xie=new Concretecolleage1(phone);
 96     Concretecolleage2 * lala=new Concretecolleage2(phone);
 97     phone->setConcretecolleage1(xie);
 98     phone->setConcretecolleage2(lala);
 99     xie->talk("去吃饭吧？");
100     lala->talk("好的呀，马上就走");
101     return 0;
102 }