spaceship-rental

Learn how to add AI to your Java apps. Each of the step-xx directories introduces a new AI app concept, and each is a complete app you can run.

All apps in this repo use Quarkus and LangChain4J.

If you want to learn more about Quarkus, please visit its website: https://quarkus.io/.

The following details apply to all of the step-xx directories.

Prerequisites

The demos use Large Language Models (LLMs). The default configuration expects Ollama to be running on your system. Alternatively, you can update the demo's /src/resources/application.properties to set a different provider.

To compile and run any of the demos, Java SE JDK 21 or later is required.

Running the application in dev mode

You can run your application in dev mode that enables live coding using:

./mvnw quarkus:dev

NOTE: Quarkus now ships with a Dev UI, which is available in dev mode only at http://localhost:8080/q/dev/.

Packaging and running the application

The application can be packaged using:

./mvnw package

It produces the quarkus-run.jar file in the target/quarkus-app/ directory. Be aware that it’s not an über-jar as the dependencies are copied into the target/quarkus-app/lib/ directory.

The application is now runnable using java -jar target/quarkus-app/quarkus-run.jar.

If you want to build an über-jar, execute the following command:

./mvnw package -Dquarkus.package.jar.type=uber-jar

The application, packaged as an über-jar, is now runnable using java -jar target/*-runner.jar.

Creating a native executable

You can create a native executable using:

./mvnw package -Dnative

Or, if you don't have GraalVM installed, you can run the native executable build in a container using:

./mvnw package -Dnative -Dquarkus.native.container-build=true

You can then execute your native executable with: ./target/spaceship-rental-1.0.0-SNAPSHOT-runner

If you want to learn more about building native executables, please consult https://quarkus.io/guides/maven-tooling.