建造者模式 build

package com.disign.build;

/**
 * Created by zhen on 2017-05-19.
 */
public class BuildPersonTest {
    /**
     * 吃面，面的口味与厨师的心情等关联引出：
     *  抽象不应该依赖于细节，细节应该依赖于抽象，吃的菜不能依赖于厨师的细节。
     *  构建小人
     *  防止哪次构建的时候小人少了哪个必要组件，应该使用抽象继承
     */
    public static void main(String[] args){

        Person thin = BuildPerson.build(new ThinPerson());
        Person fat = BuildPerson.build(new FatPerson());
    }

}
class BuildPerson{

    public static Person build(Person person){
        person.buildHead();
        person.buildBody();
        person.buildArmLeft();
        person.buildArmRight();
        person.buildLegLeft();
        person.buildLegRight();
        return person;
    }

}
abstract class Person{
   abstract void buildHead();
   abstract void buildBody();
   abstract void buildArmLeft();
   abstract void buildArmRight();
   abstract void buildLegLeft();
   abstract void buildLegRight();
}
class FatPerson extends Person{
    @Override
    void buildHead() {

    }

    @Override
    void buildBody() {

    }

    @Override
    void buildArmLeft() {

    }

    @Override
    void buildArmRight() {

    }

    @Override
    void buildLegLeft() {

    }

    @Override
    void buildLegRight() {

    }
}
class ThinPerson extends Person{
    @Override
    void buildHead() {

    }

    @Override
    void buildBody() {

    }

    @Override
    void buildArmLeft() {

    }

    @Override
    void buildArmRight() {

    }

    @Override
    void buildLegLeft() {

    }

    @Override
    void buildLegRight() {

    }
}

public class BuildProductTest {
    public static void main(String[] args){
        Director director = new Director();
        BuilderProduct builderProduct1 = new ConcreteBuilder1();
        BuilderProduct builderProduct2 = new ConcreteBuilder2();
        
        director.construct(builderProduct1);
        Product p1 = builderProduct1.getResult();
        p1.show();

        director.construct(builderProduct2);
        Product p2 = builderProduct2.getResult();
        p2.show();
    }
}
class Product{
    List<String> parts = new ArrayList<String>();
    public void add(String part){
        parts.add(part);
    }
    public void show(){
        for (String part: parts) {
            System.out.println(part);
        }
    }
}
abstract class BuilderProduct{
        public abstract void buildPartA();
        public abstract void buildPartB();
        public abstract Product getResult();
}
class ConcreteBuilder1 extends BuilderProduct{
    @Override
    public void buildPartA() {

    }

    @Override
    public void buildPartB() {

    }

    @Override
    public Product getResult() {
        return null;
    }
}
class ConcreteBuilder2 extends BuilderProduct{
    @Override
    public void buildPartA() {
        
    }

    @Override
    public void buildPartB() {

    }

    @Override
    public Product getResult() {
        return null;
    }
}
class Director{
    public void construct(BuilderProduct builder){
        builder.buildPartA();
        builder.buildPartB();
    }
}