设计模式5-抽象工厂模式

package DesignPattern;public class AbstractFactory {public static class Dough{}public static class Sauce{}public static class Veggies{}public static class Cheese{}public static class Pepperoni{}public static class Clams{}//披萨public static abstract class Pizza{String name;Dough dough;Sauce sauce;Veggies[] veggies;Cheese cheese;Pepperoni pepperoni;Clams clams;abstract void prepare();public void bake(){System.out.println("Bake for 25 minutes at 350");}public void cut(){System.out.println("Cutting the pizza into diagonal slices");}public void box(){System.out.println("Place pizza in official PizzaStore box");}public void setName(String name){this.name=name;}public String getName(){return name;}}public static class CheesePizza extends Pizza{PizzaIngredientFactory ingredientFactory;public CheesePizza(PizzaIngredientFactory pizzaIngredientFactory){this.ingredientFactory=pizzaIngredientFactory;}void prepare(){System.out.println("Preparing "+name);dough=ingredientFactory.createDough();sauce=ingredientFactory.createSauce();cheese=ingredientFactory.createCheese();}}public static class ClamPizza extends Pizza{PizzaIngredientFactory ingredientFactory;public ClamPizza(PizzaIngredientFactory pizzaIngredientFactory){this.ingredientFactory=pizzaIngredientFactory;}void prepare(){System.out.println("Preparing "+name);dough=ingredientFactory.createDough();sauce=ingredientFactory.createSauce();cheese=ingredientFactory.createCheese();}}//配方工厂public interface PizzaIngredientFactory{Dough createDough();Sauce createSauce();Cheese createCheese();Veggies[] createVegies();Pepperoni createPeperoni();Clams createClams();}//纽约附近的原料public static class ThinCrustDough extends Dough{}public static class MarinaraSauce extends Sauce{}public static class RegginaoCheese extends Cheese{}public static class SlicedPepperoni extends Pepperoni{}public static class FreshClams extends Clams{}//蔬菜public static class Gralic extends Veggies{}public static class Onion extends Veggies{}public static class Mushroom extends Veggies{}public static class RedPeper extends Veggies{}//纽约原料工厂public static class NYPizzaIngredientFactory implements PizzaIngredientFactory{@Overridepublic Dough createDough() {return new ThinCrustDough();}@Overridepublic Sauce createSauce() {return new MarinaraSauce();}@Overridepublic Cheese createCheese() {return new RegginaoCheese();}@Overridepublic Veggies[] createVegies() {Veggies[] veggies ={new Gralic(),new Onion(),new Mushroom(),new RedPeper()};return veggies;}@Overridepublic Pepperoni createPeperoni() {return new SlicedPepperoni();}@Overridepublic Clams createClams() {return new FreshClams();}}//披萨店public static abstract class PizzaStore{public Pizza orderPizza(String type){Pizza pizza=createPizza(type);pizza.prepare();pizza.bake();pizza.cut();pizza.box();return pizza;}abstract Pizza createPizza(String type);}public static class NYPizzaStore extends PizzaStore{@OverridePizza createPizza(String type) {Pizza pizza=null;PizzaIngredientFactory pizzaIngredientFactory= new NYPizzaIngredientFactory();if(type.equals("cheese")){pizza = new CheesePizza(pizzaIngredientFactory);pizza.setName("New York Style Cheese Pizza");}//此处可添加其他类型的披萨return pizza;}}public static void main(String[] args) {PizzaStore nyStore = new NYPizzaStore();Pizza pizza=nyStore.orderPizza("cheese");System.out.println(pizza.name);}/*抽象工厂模式要点在工厂模式分离创建方法和加工流程的基础上，进一步降低原料和加工流程的耦合使得在不同的地点，只需扩展某类原料实现，不用更改原有的原料代码，提高了代码的可重用性或者说抽象工厂模式允许客户接口创建一组相关的产品（比如原料工厂创建一套原料的备料过程）*/
}