【设计模式25】中介者模式

基本概念

具体案例

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include <crtdbg.h>   
#include<unordered_map>

using namespace std;

class Country;

//联合国机构
class UniteNations
{
public:
	UniteNations();
	~UniteNations();
	virtual void Declare(string message, Country* colleague)=0;
private:

};

//国家
class Country
{
public:
	Country();
	~Country();
	Country(UniteNations* mediator) {
		this->mediator = mediator;
	}

protected:
	UniteNations* mediator;
private:

};

//米国
class USA:public Country
{
public:
	USA();
	~USA();
	USA(UniteNations* mediator) {
		this->mediator = mediator;
	}
	void Declare(string message) {
		mediator->Declare(message, this);
	}
	void GetMessage(string message) {
		cout << "米国获得消息，即将攻打日本：" << message << endl;
	}
private:
};

class Iraq:public Country
{
public:
	Iraq();
	~Iraq();
	Iraq(UniteNations* mediator) {
		this->mediator = mediator;
	}
	void Declare(string message) {
		mediator->Declare(message, this);
	}

	void GetMessage(string message) {
		cout << "伊拉克获得对方消息，米国要打他：" << message << endl;
	}
private:
};

// 联合国安全理事会
class UnitedNationSecurityCouncil:public UniteNations
{
public:
	UnitedNationSecurityCouncil();
	~UnitedNationSecurityCouncil();

	//米国
	void setColleague1(USA* coll) {
		colleague1 = coll;
	}
	void setColleague2(Iraq* coll) {
		colleague2 = coll;
	}
	USA* getColleague1(){
		return colleague1;
	}
	Iraq* getColleague2(){
			return colleague2;
	}

	void Declare(string message, Country* colleague) {
		if (colleague == colleague1) {
			colleague2->GetMessage(message);
		}
		else {
			colleague1->GetMessage(message);
		}
	}

private:
	USA* colleague1;
	Iraq* colleague2;
};

UnitedNationSecurityCouncil::UnitedNationSecurityCouncil()
{
}

UnitedNationSecurityCouncil::~UnitedNationSecurityCouncil()
{
}

Iraq::Iraq()
{
}

Iraq::~Iraq()
{
}


USA::USA()
{
}

USA::~USA()
{
}

Country::Country()
{
}

Country::~Country()
{
}



UniteNations::UniteNations()
{
}

UniteNations::~UniteNations()
{
}

int main(int argc, char** argv)
{
	UnitedNationSecurityCouncil* UNSC = new UnitedNationSecurityCouncil();
	USA* c1 = new USA(UNSC);
	Iraq* c2 = new Iraq(UNSC);
	UNSC->setColleague1(c1);
	UNSC->setColleague2(c2);

	c1->Declare("打的好，打的棒棒哦!");
	c2->Declare("弄两颗原子弹过来岛国");

	return 0;
}