README.md

Polyglot quarkus

This repository contains a naive implementation that runs R script thanks to the GraalVM

Prerequisites

• Maven 3.5.3+
• GraalVM 19.1.1 CE

How to run

Setup

Set GraalVM as your JDK

export GRAALVM_HOME=<path to your graalvm>
export JAVA_HOME=${GRAALVM_HOME}
export PATH=$JAVA_HOME/bin:$PATH

Install native image & R language support for GraalVM

gu install native-image
gu install R
export R_HOME=${GRAALVM_HOME}/jre/languages/R

Run as java runner

mvn package
java -jar target/polyglot-example-1.0-SNAPSHOT-runner.jar

Run as native image

mvn package -Pnative
./target/polyglot-example-1.0-SNAPSHOT-runner

Build & run java docker image

docker build -f src/main/docker/Dockerfile.jvm -t quarkus-sample/polyglot-jvm .
docker run -i --rm -p 8080:8080 quarkus-sample/polyglot-jvm

How to access

Open http://localhost:8080/graph in your browser. First request will take some time, because of R script evaluation.

What's important

• quarkus-maven-plugin configuration has added additional flag for native-image build process (to enable R language)

<configuration>
  ...
  <additionalBuildArgs>
    <additionalBuildArg>--language:R</additionalBuildArg>
  </additionalBuildArgs>
</configuration>