Batch Samples using Spring Batch

Spring Batch

Spring Batch follows the traditional batch architecture where a job repository does the work of scheduling and interacting with the job.

A job can have more than one step. And every step typically follows the sequence of reading data, processing it and writing it.

Prerequisites

Java 17
GraalVM 22.3+
Kotlin
Maven 3.x
Kafka

Build

You can install the dependencies and build by typing the following command

mvn clean install

To compile as native, run the following goal:

$ mvn native:compile -Pnative

Then, you can run the batch as follows:

$ target/spring-batch-samples

Testing

You can run batchlication's tests by typing the following command

mvn verify

Code Quality

You can test code quality locally via sonarqube by typing the following command

mvn -Psonar compile initialize sonar:sonar

Detekt

Detekt a static code analysis tool for the Kotlin programming language

You can run detekt by typing the following command

mvn antrun:run@detekt

Dependency Vulnerabilities Check

You can check for security vulnerabilities by typing the following command

$ mvn -Powasp dependency-check:check

You can see the generated report at target/dependency-check-report.html

Docker

You can also fully dockerize the sample applications. To achieve this, first build a docker image of your app. The docker image of sample app can be built as follows:

mvn -Pjib verify jib:dockerBuild

to build native image

mvn -Pnative spring-boot:build-image

Deployment with Docker Compose

Prerequisites for Docker Compose Deployment

Docker
Docker Compose

You can deploy batch by running the following bash command

 sudo chmod +x deploy.sh

 ./deploy.sh -d

You can uninstall batch the following bash command

 ./deploy.sh -d -r

Deployment Kubernetes with Helm

Prerequisites for Kubernetes Deployment

Kubernetes
Helm