brock8503 / cliff

Dynamically compile Java from a node module

Node cliff

Brings together https://github.com/raulgomis/dynamic-java-compiler and https://github.com/joeferner/node-java to dynamically run Java in a node module.

Inspired by https://github.com/tjanczuk/edge

Setup

macOS Setup

https://brew.sh/

$ brew install caskroom/cask/brew-cask
$ brew tap caskroom/homebrew-versions
$ brew cask install java8

Windows Setup

https://chocolatey.org/install

choco install javaruntime

Introduction

In ES6 you can use template strings to write multiline Java code.

var cliff = require('cliff');

var helloWorld = cliff.func(`
  public class HelloWorld implements Runnable {
    String input;
    public HelloWorld(String input) {
      this.input = input;
    }
    public void run() {
      System.out.println("Hello " + this.input + " World!");
    }
  }
`);

helloWorld('JavaScript', function (error, result) {
  if (error) throw error;
});

Error

No Java Runtime present, requesting to install Review: joeferner/node-java#90 Run: export “JAVA_HOME=\$(/usr/libexec/java_home)”