From 118865e02882b3b76390b34c82dfa1eed8737eed Mon Sep 17 00:00:00 2001
From: "R. Tyler Croy" <tyler@monkeypox.org>
Date: Sat, 25 Jul 2015 14:27:42 -0700
Subject: [PATCH] Add ruby interop

---
 build.gradle   |  6 +++++-
 rubyinterop.js |  2 ++
 rubyinterop.rb | 19 +++++++++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 rubyinterop.js
 create mode 100644 rubyinterop.rb

diff --git a/build.gradle b/build.gradle
index 0798de2..64babab 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ buildscript {
 apply plugin: 'com.github.jruby-gradle.base'
 import com.github.jrubygradle.JRubyExec
 
-defaultTasks 'runServer'
+defaultTasks 'runInterop'
 
 /* Disabling the default repositories so we can ues the new (unreleased)
  * default rubygems proxy
@@ -42,6 +42,10 @@ task runDemo(type: JRubyExec) {
     script './demo.rb'
 }
 
+task runInterop(type: JRubyExec) {
+    script './rubyinterop.rb'
+}
+
 task runServer(type: JRubyExec) {
     script './server.rb'
     systemProperties 'java.library.path' : "${buildDir}/native"
diff --git a/rubyinterop.js b/rubyinterop.js
new file mode 100644
index 0000000..92be7d1
--- /dev/null
+++ b/rubyinterop.js
@@ -0,0 +1,2 @@
+print(example);
+print(example.callMethod('hello'));
diff --git a/rubyinterop.rb b/rubyinterop.rb
new file mode 100644
index 0000000..67010b0
--- /dev/null
+++ b/rubyinterop.rb
@@ -0,0 +1,19 @@
+#!/usr/bin/env ruby
+
+require 'java'
+java_import 'javax.script.ScriptEngineManager'
+java_import 'javax.script.ScriptContext'
+
+class Example
+  def hello
+    return 'hello world from Ruby'
+  end
+end
+
+engine = ScriptEngineManager.new.get_engine_by_name('nashorn')
+engine.get_bindings(ScriptContext::ENGINE_SCOPE).put('example', Example.new)
+
+
+puts '-' * 30
+engine.eval(File.open('rubyinterop.js').read)
+puts '-' * 30