2020-04-21 17:50:21 +03:00
|
|
|
package mediator
|
|
|
|
|
|
|
|
import (
|
|
|
|
"fmt"
|
|
|
|
)
|
|
|
|
|
2020-04-27 12:43:39 +03:00
|
|
|
//在这个模式里面,我们演示一个场景用例
|
|
|
|
//房东通过中介向房客收房租
|
|
|
|
//房客通过中介向房东要求换新家具
|
|
|
|
//中介每次服务都收100块服务费
|
2020-04-21 17:50:21 +03:00
|
|
|
|
2020-04-27 12:43:39 +03:00
|
|
|
//Person 定义一个本身的人
|
|
|
|
type Person struct {
|
|
|
|
Name string
|
|
|
|
MoneyCount int //每个人都有钱包
|
2020-04-21 17:50:21 +03:00
|
|
|
}
|
|
|
|
|
2020-04-27 12:43:39 +03:00
|
|
|
//Tenant 租客
|
|
|
|
type Tenant struct {
|
|
|
|
Person
|
2020-04-27 18:36:39 +03:00
|
|
|
m *mediator
|
2020-04-21 17:50:21 +03:00
|
|
|
}
|
|
|
|
|
2020-04-27 12:43:39 +03:00
|
|
|
//Landlord 房东,要收房租
|
|
|
|
type Landlord struct {
|
|
|
|
Person
|
|
|
|
accout int //房东的租金账户
|
2020-04-27 18:36:39 +03:00
|
|
|
m *mediator
|
2020-04-21 17:50:21 +03:00
|
|
|
}
|
|
|
|
|
2020-04-27 18:36:39 +03:00
|
|
|
//Mediator 中介,比如某居客,某家,某壳,即代表租客跟房东谈条件,又代表房东对付租客
|
|
|
|
//Mediator 所以中介一定会持有两方的信息,最好用接口代表对象
|
|
|
|
//Mediator 这里简化一下,假设中介只为一个房东和一个租客服务,直接用类型的引用,表示拥有关系
|
|
|
|
type Mediator struct {
|
|
|
|
tenant interface{}
|
|
|
|
landlord interface{}
|
|
|
|
feelandlord int
|
|
|
|
feelandtenant int
|
2020-04-21 17:50:21 +03:00
|
|
|
}
|
|
|
|
|
2020-04-27 12:43:39 +03:00
|
|
|
//AskRepair 要求房东修家具
|
2020-04-27 18:36:39 +03:00
|
|
|
func (t *Tenant) AskRepair(furniture string) {
|
|
|
|
fmt.Println("i need landlord fix the:", furniture)
|
|
|
|
t.m.Changed()
|
2020-04-21 17:50:21 +03:00
|
|
|
}
|
|
|
|
|
2020-04-27 12:43:39 +03:00
|
|
|
//CollectRent 房东收租金了
|
2020-04-27 18:36:39 +03:00
|
|
|
func (l *Landlord) CollectRent(moneyCount int) {
|
2020-04-21 17:50:21 +03:00
|
|
|
|
2020-04-27 12:43:39 +03:00
|
|
|
fmt.Printf("CPU: split data with Sound %s, Video %s\n", c.Sound, c.Video)
|
2020-04-21 17:50:21 +03:00
|
|
|
}
|
|
|
|
|
2020-04-27 18:36:39 +03:00
|
|
|
//Changed 中介要提两边或者多边办事,所以它
|
|
|
|
func (m *Mediator) Changed(i interface{}) {
|
2020-04-21 17:50:21 +03:00
|
|
|
|
|
|
|
}
|
|
|
|
|
2020-04-27 18:36:39 +03:00
|
|
|
//PublishRoom 可以在中介这里发布房源
|
|
|
|
func (m *Mediator) PublishRoom(landlord interface{}) {
|
|
|
|
|
|
|
|
m.landlord = landlord
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
//RentRom 可以从中介租房子
|
|
|
|
func (m *Mediator) RentRom(tenant interface{}) {
|
|
|
|
|
|
|
|
m.tenant = tenant
|
2020-04-21 17:50:21 +03:00
|
|
|
}
|