实现中介者模式示例，添加中介者、同事类及具体实现，增强代码可读性
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IvisTang
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package main
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import (
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"fmt"
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"slices"
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)
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/*
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实例：
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汤宝宝一时想不开，当了房产中介。
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他负责把房东和租客撮合在一起，帮他们达成租房协议。
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*/
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// 抽象中介者
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type Mediator interface {
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register(colleague Colleague)
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Notify(sender Colleague, event string)
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}
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// 具体中介者 - 房产中介
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type HousingMediator struct {
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colleagues []Colleague
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}
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func (m *HousingMediator) register(colleague Colleague) {
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if slices.Contains(m.colleagues, colleague) {
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return // 已注册
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}
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m.colleagues = append(m.colleagues, colleague)
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}
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func (m *HousingMediator) Notify(sender Colleague, event string) {
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for _, colleague := range m.colleagues {
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if colleague != sender {
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colleague.Receive(event)
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}
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}
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}
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// 抽象同事类
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type Colleague interface {
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Send(event string)
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Receive(event string)
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}
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// 具体同事类 - 房东
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type Landlord struct {
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mediator Mediator
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name string
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}
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func (l *Landlord) Send(event string) {
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fmt.Printf("房东%s发布信息: %s\n", l.name, event)
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l.mediator.Notify(l, event)
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}
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func (l *Landlord) Receive(event string) {
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fmt.Printf("房东%s收到通知: %s\n", l.name, event)
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}
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// 具体同事类 - 租客
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type Tenant struct {
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mediator Mediator
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name string
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}
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func (t *Tenant) Send(event string) {
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fmt.Printf("租客%s发布需求: %s\n", t.name, event)
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t.mediator.Notify(t, event)
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}
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func (t *Tenant) Receive(event string) {
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fmt.Printf("租客%s收到通知: %s\n", t.name, event)
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}
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func main() {
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fmt.Println("============= 中介者模式 =============")
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mediator := &HousingMediator{}
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landlord1 := &Landlord{mediator: mediator, name: "张三"}
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landlord2 := &Landlord{mediator: mediator, name: "李四"}
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tenant1 := &Tenant{mediator: mediator, name: "王五"}
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tenant2 := &Tenant{mediator: mediator, name: "赵六"}
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mediator.register(landlord1)
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mediator.register(landlord2)
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mediator.register(tenant1)
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mediator.register(tenant2)
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landlord1.Send("张三有一套两室一厅的房子出租，月租2000元。")
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fmt.Println("-----")
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tenant1.Send("王五需要一套三室的房子，预算3000元/月。")
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fmt.Println()
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fmt.Println("=========== 中介者模式结束 ===========")
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}
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@ -0,0 +1,96 @@
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"""
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实例：
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汤宝宝一时想不开，当了房产中介。
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他负责把房东和租客撮合在一起，帮他们达成租房协议。
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"""
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from abc import ABC, abstractmethod
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# 抽象同事类
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class Colleague(ABC):
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@abstractmethod
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def send(self, event: str) -> None:
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pass
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@abstractmethod
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def receive(self, event: str) -> None:
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pass
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# 抽象中介者
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class Mediator(ABC):
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@abstractmethod
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def notify(self, sender: Colleague, event: str) -> None:
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pass
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@abstractmethod
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def register(self, colleague: Colleague) -> None:
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pass
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# 具体同事类：房东
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class Landlord(Colleague):
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mediator: Mediator
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name: str
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def __init__(self, mediator: Mediator, name: str) -> None:
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self.mediator = mediator
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self.name = name
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self.mediator.register(self)
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def send(self, event: str) -> None:
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print(f"房东{self.name}发布信息: {event}")
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self.mediator.notify(self, event)
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def receive(self, event: str) -> None:
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print(f"房东{self.name}收到通知: {event}")
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# 具体同事类：租客
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class Tenant(Colleague):
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mediator: Mediator
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name: str
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def __init__(self, mediator: Mediator, name: str) -> None:
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self.mediator = mediator
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self.name = name
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self.mediator.register(self)
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def send(self, event: str) -> None:
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print(f"租客{self.name}发布需求: {event}")
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self.mediator.notify(self, event)
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def receive(self, event: str) -> None:
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print(f"租客{self.name}收到通知: {event}")
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# 具体中介者类
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class HousingMediator(Mediator):
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colleagues: list[Colleague] = []
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def register(self, colleague: Colleague) -> None:
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if colleague not in self.colleagues:
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self.colleagues.append(colleague)
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def notify(self, sender: Colleague, event: str) -> None:
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for colleague in self.colleagues:
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if colleague != sender:
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colleague.receive(event)
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if __name__ == "__main__":
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print("============= 中介者模式 =============")
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mediator = HousingMediator()
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landlord1 = Landlord(mediator, "张三")
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landlord2 = Landlord(mediator, "李四")
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tenant1 = Tenant(mediator, "王五")
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tenant2 = Tenant(mediator, "赵六")
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landlord1.send("张三有一套两室一厅的房子出租，月租2000元。")
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print("-----")
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tenant1.send("王五需要一套三室的房子，预算3000元/月。")
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print("\n=========== 中介者模式结束 ===========")
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@ -0,0 +1,98 @@
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/*
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实例：
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汤宝宝一时想不开，当了房产中介。
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他负责把房东和租客撮合在一起，帮他们达成租房协议。
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*/
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// 抽象中介者
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interface Mediator {
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register(colleague: Colleague): void;
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notify(sender: Colleague, event: string): void;
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}
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// 抽象同事
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interface Colleague {
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send(event: string): void;
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receive(event: string): void;
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}
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// 具体中介者
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class HousingMediator implements Mediator {
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private colleagues: Colleague[];
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constructor() {
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this.colleagues = [];
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}
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register(colleague: Colleague): void {
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if (!this.colleagues.includes(colleague)) {
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this.colleagues.push(colleague);
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}
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}
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notify(sender: Colleague, event: string): void {
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for (const colleague of this.colleagues) {
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if (colleague !== sender) {
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colleague.receive(event);
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}
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}
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}
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}
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// 具体同事 - 房东
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class Landlord implements Colleague {
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private mediator: Mediator;
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private name: string;
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constructor(mediator: Mediator, name: string) {
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this.mediator = mediator;
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this.name = name;
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this.mediator.register(this);
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}
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send(event: string): void {
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console.log(`房东${this.name}发布信息: ${event}`);
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this.mediator.notify(this, event);
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}
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receive(event: string): void {
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console.log(`房东${this.name}收到通知: ${event}`);
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}
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}
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// 具体同事 - 租客
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class Tenant implements Colleague {
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private mediator: Mediator;
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private name: string;
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constructor(mediator: Mediator, name: string) {
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this.mediator = mediator;
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this.name = name;
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this.mediator.register(this);
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}
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send(event: string): void {
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console.log(`租客${this.name}发布需求: ${event}`);
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this.mediator.notify(this, event);
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}
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receive(event: string): void {
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console.log(`租客${this.name}收到通知: ${event}`);
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}
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}
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(function () {
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console.log("============= 中介者模式 =============");
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const mediator = new HousingMediator();
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const landlord1 = new Landlord(mediator, "张三");
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const landlord2 = new Landlord(mediator, "李四");
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const tenant1 = new Tenant(mediator, "王五");
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const tenant2 = new Tenant(mediator, "赵六");
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landlord1.send("张三有一套两室一厅的房子出租，月租2000元。");
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console.log("-----");
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tenant1.send("王五需要一套三室的房子，预算3000元/月。");
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console.log("\n=========== 中介者模式结束 ===========");
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})();
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