设计模式之代理模式

#include<iostream>
using namespace std;
#include<string>

//代理模式：为其他对象提供一种代理以控制对这个对象的访问

class abstractCommonInterface{
public:
    virtual void run()=0;
};

class mySystem:public abstractCommonInterface{
public:
    virtual void run(){
        cout<<"system start"<<endl;
    }
};

//系统必须要权限的验证，不是每个人都能来启动，需要用户名和密码
//代理类
class mySystemProxy:public abstractCommonInterface{
public:
    mySystemProxy(string name,string password):mName(name),mPassword(password){    
        pMysystem=new mySystem;
    }
    bool checkAuthority(){
        if(mName=="admin"&&mPassword=="admin"){
            return true;
        }
        return false;
    }
    virtual void run(){
        if(checkAuthority()){
            this->pMysystem->run();
            cout<<"checkAuthority correct"<<endl;
        }else{
            cout<<"name or password error"<<endl;
        }
    }
    ~mySystemProxy(){
        if(pMysystem!=NULL){
            delete pMysystem;
        }
    }
    mySystem* pMysystem;
    string mName;
    string mPassword;
};
int main()
{
    mySystemProxy* system=new mySystemProxy("admin","admin");
    system->run();
    return 0;
}