builder.cpp

#include <iostream>
#include <string>
#include <map>
#include <boost/shared_ptr.hpp>

using std::cout;
using std::endl;

using namespace std;


class food{
public:
	void setMilk(string milk){
		foods["milk"] = milk;
	}
	void setPlate(string plate){
		foods["plate"] = plate;

	}
	void setMeal(string meal){
		foods["meal"] = meal;
	}
	void getFoods(){
		for(auto it = foods.begin();it != foods.end();it++)
		{
			cout<<it->first<<":"<<it->second<<endl; 
		}
	}
private:
	std::map<string,string> foods;
};

class builder{
public:
	virtual void getMilk(string) = 0;
	virtual void getPlate(string) = 0;
	virtual void getMeal(string) = 0;
	void printBuilder(){fo.getFoods();}

protected:
	food fo;

};

class adultBuilder:public builder{
public:
	void getMilk(string milk){fo.setMilk("adult "+milk);}
	void getPlate(string plate){fo.setPlate("adult "+plate);}
	void getMeal(string meal){fo.setMeal("adult "+meal);}
};

class childBuilder:public builder{
public:
	void getMilk(string milk){fo.setMilk("child "+milk);}
	void getPlate(string plate){fo.setPlate("child "+plate);}
	void getMeal(string meal){fo.setMeal("child "+meal);}
};


class cook{
public:
	void setBuilder(boost::shared_ptr<builder> b){_b = b;}
	void construct(string plate,string milk,string meal){
		_b->getMilk(milk);
		_b->getPlate(plate);
		_b->getMeal(meal);
	}
private:
	boost::shared_ptr<builder> _b;
};


int main(){
	auto b = boost::shared_ptr<builder>(new adultBuilder());
	cook c;
	c.setBuilder(b);
	c.construct("white plate", "fuck milk", "roat meal");
	b->printBuilder();
}