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![62Beans
Declare function as beans
@SpringBootApplication
public class TestApp {
@Bean
public Function<Flux<String>, Flux<String>> upperCase() {
return flux -> flux.map(String::toUpperCase);
}
@Bean
public Supplier<String> helloWorld() {
return () -> "Hello World";
}
public static void main(String[] args) {
SpringApplication.run(TestApp.class, args);
}
}](https://image.slidesharecdn.com/javaspringcloudfunction-goingserverless-190214095830/85/Spring-Cloud-Function-Going-Serverless-62-320.jpg)
![65Beans
@SpringBootApplication
public class TestApp {
public static void main(String[] args) {
SpringApplication.run(TestApp.class, args);
}
}
@Component
public class HelloWorld implements Supplier<String> {
@Override
public String get() {
return "Hello World";
}
}
@Component
public class UpperCase implements Function<Flux<String>, Flux<String>> {
@Override
public Flux<String> apply(Flux<String> flux) {
return flux.map(String::toUpperCase);
}
}](https://image.slidesharecdn.com/javaspringcloudfunction-goingserverless-190214095830/85/Spring-Cloud-Function-Going-Serverless-65-320.jpg)
Uploaded byGlobalLogic Ukraine
Spring Cloud Function — Going Serverless
The document presents a comprehensive overview of implementing Spring Cloud Function in serverless architectures, detailing the evolution of distributed applications and microservices. It covers key concepts such as service discovery, configuration, function deployment, and using Spring Cloud Data Flow for orchestrating serverless functions across different platforms. Additionally, it highlights various components, deployment strategies, and examples of usage in real-world applications.
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Spring Cloud Function — Going Serverless
- 1. Spring Cloud Function GoingServerless
- 2. Orkhan Gasimov Digital TransformationArchitect @ GlobalLogic 15 years of software engineering; training & mentorship; author of trainings about: Microservices; Spring Cloud; Akka; 2Speaker
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- 8. 8 Enterprise Evolution App Server 1 Module Module Module Module AppServer N Module Module Module Module
- 9. 9 Enterprise Evolution App Server 1 Module Module Module Module AppServer N Module Module Module Module Admin Server Deployment & Configuration
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- 18. 18 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Server Modules Fn ? Server Modules Fn? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Discovery & Configuration Microservices
- 19. 19 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Server Modules Fn ? Server Modules Fn? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Discovery & Configuration Microservices
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- 21. 21 Enterprise Evolution Microservices Discovery & Configuration AppApp App App App App App App
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- 26. 26 Enterprise Evolution Fn Fn Fn Fn Fn Fn Fn Fn Discovery & ConfigurationSpring Distributed Functions Microservices Functions MQHTTP
- 27. 27 Enterprise Evolution Fn Fn Fn Fn Fn Fn Fn Fn Discovery & Configuration MQHTTP CloudSpring Distributed Functions Microservices Functions
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- 32. 32Service Discovery Sales Sales Sales Warehouse Accounting Discounts Client APIGateway Service Registry
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- 34. 34CQRS + EventSourcing Client API Gateway Command Query
- 35. 35CQRS + EventSourcing Query Command Client API Gateway Command Query
- 36. 36CQRS + EventSourcing Query Command Client API Gateway Service Registry Command Query
- 37. 37CQRS + EventSourcing Query Command Client API Gateway Service Registry Command Query DB DB
- 38. 38CQRS + EventSourcing Event Store Query Command Client API Gateway Service Registry Command Query DB DB
- 39. 39CQRS + EventSourcing Event Handler Event Store Query Command Client API Gateway Service Registry Command Query DB DB
- 40. 40CQRS + EventSourcing Fn Fn Fn Event Handler Event Store Query Command Client API Gateway Service Registry Command Query DB DB
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- 47. Spring Cloud Function Serverless& X-Platform
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- 49. 49Components Service Service Service RepositoryRepository RepositoryRepository
- 50. 50Components Controller Service Controller Service Service Repository RepositoryRepositoryRepository
- 51. 51Components Controller Service Controller Service Service Repository RepositoryRepositoryRepository DTO DTO Entity Entity Entity Entity
- 52. 52Components Controller Service Controller Service Service Repository RepositoryRepositoryRepository DTO DTO Entity Entity Entity Entity
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- 59. 59Beans Declare function asbeans @SpringBootApplication public class TestApp {
- 60. 60Beans Declare function asbeans @SpringBootApplication public class TestApp { @Bean public Function<Flux<String>, Flux<String>> upperCase() { return flux -> flux.map(String::toUpperCase); }
- 61. 61Beans Declare function asbeans @SpringBootApplication public class TestApp { @Bean public Function<Flux<String>, Flux<String>> upperCase() { return flux -> flux.map(String::toUpperCase); } @Bean public Supplier<String> helloWorld() { return () -> "Hello World"; }
- 62. 62Beans Declare function asbeans @SpringBootApplication public class TestApp { @Bean public Function<Flux<String>, Flux<String>> upperCase() { return flux -> flux.map(String::toUpperCase); } @Bean public Supplier<String> helloWorld() { return () -> "Hello World"; } public static void main(String[] args) { SpringApplication.run(TestApp.class, args); } }
- 63. 63Beans @Component public class HelloWorldimplements Supplier<String> { @Override public String get() { return "Hello World"; } }
- 64. 64Beans @Component public class HelloWorldimplements Supplier<String> { @Override public String get() { return "Hello World"; } } @Component public class UpperCase implements Function<Flux<String>, Flux<String>> { @Override public Flux<String> apply(Flux<String> flux) { return flux.map(String::toUpperCase); } }
- 65. 65Beans @SpringBootApplication public class TestApp{ public static void main(String[] args) { SpringApplication.run(TestApp.class, args); } } @Component public class HelloWorld implements Supplier<String> { @Override public String get() { return "Hello World"; } } @Component public class UpperCase implements Function<Flux<String>, Flux<String>> { @Override public Flux<String> apply(Flux<String> flux) { return flux.map(String::toUpperCase); } }
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- 71. Deploy functions asHTTP Endpoints 71Web <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-function-web</artifactId> </dependency>
- 72. Stream Functions on Streamhandlers
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- 75. Deploy functions asStream handlers 75Stream <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-function-stream</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-stream-binder-{rabbit/kafka/...}</artifactId> </dependency>
- 76. 76Stream spring: profiles: upper cloud: stream: bindings: input: destination: hello output: destination:upper function: stream: sink: name: upperCase source: name: upperCase
- 77. 77Stream spring: profiles: hello cloud: stream: bindings: output: destination: hello function: stream: sink: enabled:false source: name: helloWorld
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- 79. • Cloud • AmazonAWS • Microsoft Azure • Apache OpenWhisk 79Deployment
- 80. • Cloud • AmazonAWS • Microsoft Azure • Apache OpenWhisk • Spring Cloud Data Flow • Kubernetes • Cloud Foundry • Mesos • Spark 80Deployment
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- 82. 82Spring Cloud DataFlow Data Flow Server
- 83. 83Spring Cloud DataFlow Data Flow Server Admin UI/CLI
- 84. 84Spring Cloud DataFlow Data Flow Server Admin UI/CLI Maven Repo
- 85. 85Spring Cloud DataFlow Data Flow Server Admin UI/CLI MQ Maven Repo
- 86. 86Spring Cloud DataFlow Supplier ConsumerFunction Source SinkProcessor
- 87. 87Spring Cloud DataFlow Supplier ConsumerFunction
- 88. Source Processor Sink fileaggregator aggregate-counter ftp bridge cassandra gemfire filter counter gemfire-cq groovy-filter field-value-counter http groovy-transform file jdbc header-enricher ftp jms httpclient gemfire load-generator pmml gpfdist loggregator python-http hdfs mail python-jython hdfs-dataset mongodb scriptable-transform jdbc mqtt splitter log rabbit tasklaunchrequest- transform mongodb s3 tcp-client mqtt sftp tensorflow pgcopy syslog transform rabbit tcp twitter-sentiment redis-pubsub tcp-client router time s3 trigger sftp triggertask task-launcher-cloudfoundry twitterstream task-launcher-local task-launcher-yarn tcp throughput websocket
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- 90. 90Examples • Projects • MediaProcessing • Data Processing Pipelines • Financial Calculators • Use-cases • Semi-universal deployment model • Separation of independent function from service logic • On-prem FaaS • Proprietary FaaS platform
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- 92. 92 Enterprise Summary Fn Fn Fn Fn Fn Fn Fn Fn Discovery & Configuration MQHTTP CloudSpring Distributed Functions Microservices Functions
- 93. 93Summary • Functions asBeans • Serverless & X-Platform • Web • Streaming • Cloud • Data Flow Fn Fn Fn Fn Fn Fn Fn Fn Discovery & Configuration MQHTTP Cloud Spring Distributed Functions
- 94.