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alibaba-rsocket-broker's Introduction

Alibaba RSocket Broker

Alibaba RSocket Broker是一款基于RSocket协议的响应式程控消息交换系统,为通讯双方构建一个透明稳健的通讯桥梁。

  • 响应式: 编程模型、线程模型、异步化、无网络要求等
  • 程控:程序控制,可定制,如扩展支持等
  • 消息:面向消息通讯,路由、过滤、observability都非常简单
  • 交换系统:分布式、异构系统支持

RSocket Broker Structure

项目模块

  • alibaba-rsocket-core: RSocket核心功能模块
  • alibaba-rsocket-spring-boot-starter: Spring Boot Starter for RSocket, 包括RSocket服务发布和消费
  • alibaba-broker-spring-boot-starter: Spring Boot Starter for RSocket Broker, 方便第三方进行扩展
  • alibaba-rsocket-broker: Alibaba RSocket Broker参考实现
  • alibaba-broker-registry-client-spring-boot-starter: 通过RSocket Broker对外提供服务发现服务
  • alibaba-broker-config-client-spring-boot-starter: 通过RSocket Broker对外提供配置推送服务
  • rsocket-broker-gateway-http: RSocket Broker HTTP网关,将HTTP转换为RSocket协议

如何运行Example

项目提供了RSocket Broker Example,你可以在example模块下找到。以下是如何在IDE中运行样例的步骤:

  • 找到AlibabaRSocketBrokerServer类,运行main函数,启动RSocket Broker
  • 找到RSocketResponderServer类,运行main函数,启动RSocket Responder对外提供Reactive服务
  • 找到RSocketRequesterApp类,运行main函数,启动RSocket Requester, 进行Reactive Service消费
  • 在IDEA中,找到example.http,运行 "GET http://localhost:8181/user/2" 或者运行以下命令,进行服务调用测试。
$ curl http://localhost:8181/user/2

样例的详细介绍请访问 Example

RSocket服务编写流程

包含如何创建一个Reactive服务接口,在Responder端实现该接口,在Requester完成Reactive服务调用。

  • 创建一个RSocket服务接口,你可以创建一个单独的Maven Module存放这些接口,如user-service-api,样例代码如下:
public interface UserService {
    Mono<User> findById(Integer id);
}
  • 在RSocket Responder端实现该接口,同时给实现类添加 @RSocketService annotation,如下:
@RSocketService(serviceInterface = UserService.class)
public class UserServiceImpl implements UserService {
    @Override
    public Mono<User> findById(Integer id) {
        return Mono.just(new User(1, "nick:" + id));
    }
}
  • 在RSocket Requester,以Proxy方式创建Reactive服务接口对应的Spring bean, 如下:
    @Bean
    public UserService userService(@Autowired UpstreamManager upstreamManager) {
        return RSocketRemoteServiceBuilder
                .client(UserService.class)
                .upstreamManager(upstreamManager)
                .build();
    }
  • 在RSocket Requester端,进行代码调用,如HTTP REST API提供给:
@RestController
public class PortalController {
    @Autowired
    UserService userService;

    @GetMapping("/user/{id}")
    public Mono<User> user(@PathVariable Integer id) {
        return userService.findById(id);
    }
}

References

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