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Oleg Zhurakousky
2019-08-14 20:10:47 +02:00
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@@ -19,16 +19,6 @@ It abstracts away all of the transport details and
infrastructure, allowing the developer to keep all the familiar tools
and processes, and focus firmly on business logic.
*Features*
In the nutshell Spring Cloud Function provides the following features:
* _Choice of programming styles - reactive, imperative or hybrid._
* _Function composition and adaptation (e.g., composing imperative functions with reactive)._
* _Support for reactive function with multiple inputs and outputs allowing merging, joining and other complex streaming operation to be handled by functions._
* _Transparent type conversion of inputs and outputs._
* _Packaging functions for deployments, specific to the target platform (e.g., Project Riff, AWS Lambda and more)_
Here's a complete, executable, testable Spring Boot application
(implementing a simple string manipulation):
@@ -55,20 +45,19 @@ https://www.reactive-streams.org/[Reactive Streams] `Publisher` from
https://projectreactor.io/[Project Reactor]. The function can be
accessed over HTTP or messaging.
Spring Cloud Function has 4 main features:
*Features*
1. Wrappers for `@Beans` of type `Function`, `Consumer` and
`Supplier`, exposing them to the outside world as either HTTP
endpoints and/or message stream listeners/publishers with RabbitMQ, Kafka etc.
In the nutshell Spring Cloud Function provides the following features:
2. Compiling strings which are Java function bodies into bytecode, and
then turning them into `@Beans` that can be wrapped as above.
3. Deploying a JAR file containing such an application context with an
isolated classloader, so that you can pack them together in a single
JVM.
4. Adapters for https://github.com/spring-cloud/spring-cloud-function/tree/master/spring-cloud-function-adapters/spring-cloud-function-adapter-aws[AWS Lambda], https://github.com/spring-cloud/spring-cloud-function/tree/master/spring-cloud-function-adapters/spring-cloud-function-adapter-azure[Azure], https://github.com/spring-cloud/spring-cloud-function/tree/master/spring-cloud-function-adapters/spring-cloud-function-adapter-openwhisk[Apache OpenWhisk] and possibly other "serverless" service providers.
* _Choice of programming styles - reactive, imperative or hybrid._
* _Function composition and adaptation (e.g., composing imperative functions with reactive)._
* _Support for reactive function with multiple inputs and outputs allowing merging, joining and other complex streaming operation to be handled by functions._
* _Transparent type conversion of inputs and outputs._
* _Packaging functions for deployments, specific to the target platform (e.g., Project Riff, AWS Lambda and more)_
* _ Adapters to expose function to the outside world as HTTP endpoints etc.
* _ Deploying a JAR file containing such an application context with an isolated classloader, so that you can pack them together in a single JVM.
* _Compiling strings which are Java function bodies into bytecode, and then turning them into `@Beans` that can be wrapped as above.
* _Adapters for https://github.com/spring-cloud/spring-cloud-function/tree/master/spring-cloud-function-adapters/spring-cloud-function-adapter-aws[AWS Lambda], https://github.com/spring-cloud/spring-cloud-function/tree/master/spring-cloud-function-adapters/spring-cloud-function-adapter-azure[Azure], https://github.com/spring-cloud/spring-cloud-function/tree/master/spring-cloud-function-adapters/spring-cloud-function-adapter-openwhisk[Apache OpenWhisk] and possibly other "serverless" service providers._
== Getting Started