python设计模式---创建型之工厂模式

# coding = utf-8
from abc import ABCMeta, abstractmethod

# 简单工厂模式
class Animal(metaclass=ABCMeta):
    @abstractmethod
    def do_say(self):
        pass

class Dog(Animal):
    def do_say(self):
        print('Bhow Bhow!!!')

class Cat(Animal):
    def do_say(self):
        print('Meow Meow!!!')

class ForestFactory:
    def make_sound(self, object_type):
        return eval(object_type)().do_say()

ff = ForestFactory()
ff.make_sound('Dog')
ff.make_sound('Cat')

# 工厂方法模式
class Section(metaclass=ABCMeta):
    @abstractmethod
    def describe(self):
        pass

class PersonalSection(Section):
    def describe(self):
        print('Personal Section')

class AlbumSection(Section):
    def describe(self):
        print('Album Section')

class PatentSection(Section):
    def describe(self):
        print('Patent Section')

class PublicationSection(Section):
    def describe(self):
        print('Publication Section')

class Profile(metaclass=ABCMeta):
    def __init__(self):
        self.sections = []
        self.create_profile()

    @abstractmethod
    def create_profile(self):
        pass

    def get_sections(self):
        return self.sections

    def add_sections(self, section):
        self.sections.append(section)

class LinkedIn(Profile):
    def create_profile(self):
        self.add_sections(PersonalSection())
        self.add_sections(PatentSection())
        self.add_sections(PublicationSection())

class FaceBook(Profile):
    def create_profile(self):
        self.add_sections(PersonalSection())
        self.add_sections(AlbumSection())

profile_type = 'LinkedIn'
profile = eval(profile_type)()
print('Creating Profile...', type(profile).__name__)
print('Profile has sections ---', profile.get_sections())
for item in profile.get_sections():
    item.describe()

profile_type = 'FaceBook'
profile = eval(profile_type)()
print('Creating Profile...', type(profile).__name__)
print('Profile has sections ---', profile.get_sections())
for item in profile.get_sections():
    item.describe()

# 抽象工厂模式
class PizzaFactory(metaclass=ABCMeta):
    @abstractmethod
    def create_veg_pizza(self):
        pass

    @abstractmethod
    def create_non_veg_pizza(self):
        pass

class IndianPizzaFactory(PizzaFactory):
    def create_veg_pizza(self):
        return DeluxVeggiePizza()

    def create_non_veg_pizza(self):
        return ChickenPizza()

class USPizzaFactory(PizzaFactory):
    def create_veg_pizza(self):
        return MexicanVegPizza()

    def create_non_veg_pizza(self):
        return HamPizza()

class VegPizza(metaclass=ABCMeta):
    @abstractmethod
    def prepare(self, veg_pizza):
        pass

class NonVegPizza(metaclass=ABCMeta):
    @abstractmethod
    def serve(self, non_veg_pizza):
        pass

class DeluxVeggiePizza(VegPizza):
    def prepare(self):
        print('Prepare ', type(self).__name__)

class ChickenPizza(NonVegPizza):
    def serve(self, veg_pizza):
        print(type(self).__name__, 'is served with  chicken on ',
              type(veg_pizza).__name__)

class MexicanVegPizza(VegPizza):
    def prepare(self):
        print('Prepare ', type(self).__name__)

class HamPizza(NonVegPizza):
    def serve(self, veg_pizza):
        print(type(self).__name__, 'is served with  ham on ',
              type(veg_pizza).__name__)

class PizzaStore:
    def __init__(self):
        pass

    def make_pizzas(self):
        for factory in [IndianPizzaFactory(), USPizzaFactory()]:
            self.factory = factory
            self.non_veg_pizza = self.factory.create_non_veg_pizza()
            self.veg_pizza = self.factory.create_veg_pizza()
            self.veg_pizza.prepare()
            self.non_veg_pizza.serve(self.veg_pizza)

pizza = PizzaStore()
pizza.make_pizzas()

C:\Users\Sahara\.virtualenvs\test\Scripts\python.exe C:/Users/Sahara/PycharmProjects/test/python_search.py
Bhow Bhow!!!
Meow Meow!!!
Creating Profile... LinkedIn
Profile has sections --- [<__main__.PersonalSection object at 0x0000000001E8E9E8>, <__main__.PatentSection object at 0x0000000001E8EA20>, <__main__.PublicationSection object at 0x0000000001E8EA58>]
Personal Section
Patent Section
Publication Section
Creating Profile... FaceBook
Profile has sections --- [<__main__.PersonalSection object at 0x0000000001E8EB38>, <__main__.AlbumSection object at 0x0000000001E8EB00>]
Personal Section
Album Section
Prepare  DeluxVeggiePizza
ChickenPizza is served with  chicken on  DeluxVeggiePizza
Prepare  MexicanVegPizza
HamPizza is served with  ham on  MexicanVegPizza

Process finished with exit code