1. RingoJS
FinJUG talk by
Oleg Podsechin
15.01.2013

3. Overview
 started by Hannes Wallnöfer
 successor to Helma, HelmaNG
o been in development for 13+ years
 runs on the JVM
 uses Mozilla Rhino
 conforms to CommonJS

4. CommonJS
 Modules/1.0, Modules/1.1
 JSGI
 Binary
 Filesystem
 System
 Unit Testing

5. Features
 hot reloading of modules
 profiler
 debugger
 sandboxing
 runs anywhere Java runs
 within a webapp container
 standalone process

6. Install & Run
git clone git://github.com/ringo/ringojs.git
ant update jar
bin/ringo

7. Hello World
>> 'Hello World'
Hello World

8. Hello World, Take Two
new require('ringo/httpserver').Server({
app: function() {
return {status: 200,
headers: {},
body: ['Hello World']}; }
}).start();

9. Multithreaded JS
// run "test" in "threads" parallel threads a total of "count" times
function parallel(test, count, threads) { var pool = new
java.util.concurrent.Executors.newFixedThreadPool(threads); functio
n runnable(f) {
return new java.lang.Runnable({ run: function() {
try { f(); } catch(e) { }
}}); } for(var i = 0; i < count; i ++)
pool.execute(runnable(test));}

10. RingoJS libraries
 search GitHub for ringo-
ringo-admin install
user/repo
 use rp and packages.ringojs.org
rp install name

11. Examples of RingoJS libraries
 stick
 ringo-modulr
 ringo-storable
 ringo-filestore, ringo-hibernate
 ringo-mongodb
 ringo-mail

12. Stick Example
var {Application} = require("stick");
var app = Application();
app.configure("error", "notfound",
"route");
var response =
require('ringo/jsgi/response');
app.get("/", function(req) {
return response.html("Hello");
});

13. Community
 #ringojs on Freenode IRC
 #ringojs & @ringojs on Twitter
 http://github.com/ringo

14. Use Cases & Benefits
 standalone
 to extend an existing Java webapp
 plugin architecture for existing application
 code reuse between server and browser
 less context switching
 more compact code, faster prototyping

15. Extras
 Common Node
 Nashorn
 Node.jar
 Vert.x

16. @olegpodsechin
github.com/olegp