JarCastingSpring Boot Scale Cube Starter
Scale Cube Spring Boot Project it easy to create Spring Boot application using Scale Cube.
Scale Cube is A Novel Open-source application-platform that addresses inherent challenges involved in the development of distributed computing.
Released version
You can introduce the latest dubbo-spring-boot-starter to your project by adding the following dependency to your pom.xml
<properties>
<spring-boot.version>2.1.6.RELEASE</spring-boot.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- Spring Boot -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- Scale Cube -->
<dependency>
<groupId>io.scalecube</groupId>
<artifactId>scalecube-bom</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- Spring Boot Scale Cube Starter -->
<dependency>
<groupId>io.scalecube</groupId>
<artifactId>spring-boot-starter-scalecube</artifactId>
<version>${spring-boot.version}</version>
</dependency>
<!-- Optional. Network Transport for distributed system -->
<dependency>
<groupId>io.scalecube</groupId>
<artifactId>scalecube-services-transport-rsocket</artifactId>
</dependency>
<!-- Optional. Cluster & Service Discovery for distributed system -->
<dependency>
<groupId>io.scalecube</groupId>
<artifactId>scalecube-services-discovery</artifactId>
</dependency>
<!-- Optional. Message codec for distributed system -->
<dependency>
<groupId>io.scalecube</groupId>
<artifactId>scalecube-services-transport-jackson</artifactId>
</dependency>
</dependencies>
Build from Source
If you'd like to attempt to experience latest features, you also can build from source as follow:
- Maven install current project in your local repository.
Maven install =
mvn install
Getting Started
If you don't know about Scale Cube, please take a few minutes to learn www.scalecube.io.
Usually, There are two usage scenarios for Scale Cube applications, one is Scale Cube service(s) provider, another is Scale Cube service(s) consumer, thus let's get a quick start on them.
First of all, we suppose an interface as Scale Cube Service that a service provider exports and a service client consumes:
@Service
public interface ExampleService {
@ServiceMethod
Mono<String> sayHello(String name);
@ServiceMethod
Flux<String> helloStream();
@ServiceMethod
Flux<MyResponse> helloBidirectional(Flux<String> nameSteam);
}
Scale Cube service(s) provider
-
Service Provider implements
ExampleService@Component public class DefaultExampleService implements ExampleService { @Override public Mono<String> sayHello(String name) { return Mono.just("Hello, " + request); } @Override public Flux<MyResponse> helloStream() { return Flux.just("Hello, Eugene", "Hello, Kate"); } @Override public Flux<MyResponse> helloBidirectional(Flux<String> nameSteam) { return nameSteam.map("Hello, "::concat); } }
-
Provides a bootstrap class
@SpringBootApplication public class ScalecubeProviderDemo { public static void main(String[] args) { SpringApplication.run(DubboProviderDemo.class,args); } }
-
Configures the
application.ymlspring: scalecube: discovery: transport: port: 21000
Scale Cube Service Consumer
-
Service Consumer must depend on
ExampleService@Component public class ExampleServiceConsumer { @SelectorStrategy(routerType = RoundRobinRouter) private final ExampleService exampleService; public ExampleServiceConsumer(ExampleService exampleService) { this.exampleService = exampleService; } public void printGreeting() { exampleService.helloStream().subscribe(System.out::println); } }
-
Service Consumer also provides a bootstrap class
@SpringBootApplication public class ScalecubeConsumerDemo { public static void main(String[] args) { SpringApplication.run(DubboProviderDemo.class,args); } @Bean public ApplicationRunner runner(ExampleServiceConsumer exampleServiceConsumer) { return args -> exampleServiceConsumer.printGreeting(); } }
-
Configures
application.ymlspring: scalecube: discovery: membership: seed-members: - localhost:21000
Getting Help
Having trouble with Scale Cube Spring Boot? We'd like to help!
- Ask a question - You can write to Gitter.
- Report bugs at github.com/scalecube/spring-boot-scalecube-starter/issues.
