设计模式-抽象工厂模式

内容：定义一个工厂类接口，让工厂子类来创建一系列相关或者相互依赖的对象
例如：生产一部手机你，需要手机壳、CPU、操作系统三类对象来进行组装，其中每类对象都有不同的种类。对每个具体工厂，分别生产一部手机需要的三个对象
相比工厂方法模式，抽象工厂模式的每个具体工厂都生产一套产品
from abc import ABCMeta, abstractclassmethod

# 定义三个接口
class Cpu(metaclass=ABCMeta):
    @abstractclassmethod
    def show_cpu(self):
        pass


class Os(metaclass=ABCMeta):
    @abstractclassmethod
    def show_os(self):
        pass


class PhoneCase(metaclass=ABCMeta):
    @abstractclassmethod
    def show_phonecase(self):
        pass


class XiaoLongCpu(Cpu):
    def show_cpu(self):
        print('骁龙cpu')


class InterCpu(Cpu):
    def show_cpu(self):
        print('英特尔cpu')


class AndroidOs(Os):
    def show_os(self):
        print("安卓系统")


class IosOs(Os):
    def show_os(self):
        print("苹果系统")


class BigPhoneCase(PhoneCase):
    def show_phonecase(self):
        print("大手机壳")


class MidPhoneCase(PhoneCase):
    def show_phonecase(self):
        print("中等机壳")


class SmallPhoneCase(PhoneCase):
    def show_phonecase(self):
        print("小型手机壳")


# 定义一个接口,手机工厂，初步定义手机需要的对象
class PhoneFactory(metaclass=ABCMeta):
    @abstractclassmethod
    def make_os(self):
        pass

    @abstractclassmethod
    def make_cpu(self):
        pass

    @abstractclassmethod
    def make_phonecase(self):
        pass


class HuaweiPhoneFactory(PhoneFactory):
    def make_os(self):
        return AndroidOs()

    def make_cpu(self):
        return XiaoLongCpu()

    def make_phonecase(self):
        return BigPhoneCase()


class IPhoneFactory(PhoneFactory):
    def make_os(self):
        return IosOs()

    def make_cpu(self):
        return InterCpu()

    def make_phonecase(self):
        return SmallPhoneCase()


class Phone():
    def __init__(self, cpu, os, phonecase):
        self.cpu = cpu
        self.os = os
        self.phonecase = phonecase

    def show_info(self):
        self.cpu.show_cpu()
        self.os.show_os()
        self.phonecase.show_phonecase()


def make_phone(factory):
    cpu = factory().make_cpu()
    os = factory().make_os()
    phonecase = factory().make_phonecase()
    return Phone(cpu, os, phonecase)


make_phone(HuaweiPhoneFactory).show_info()
make_phone(IPhoneFactory).show_info()

角色

抽象工厂角色 PhoneFactory
具体工厂角色 HuaweiPhoneFactory IPhoneFactory
抽奖产品角色 Cpu Os PhoneCase
具体产品角色 AndroidOs IosOs
客户端