The Rhinoceros on the Loose

JavaScript is a powerful, flexible, and dynamically typed language. JVM is proven to be reliable and stable production platform. The power of the JVM is an ability to run programs written in different languages, including JavaScript. You can short the development cycle by leveraging a scripting abilities of JavaScript. This presentation is about the emerging opensource frameworks that allow to mix Java and JavaScript in the same application.

In this session you'll get introduced to the latest state of the polyglot frameworks that use JavaScript and Java side-by-side. We'll discuss the following topics:

* The Nashorn benefits for the server and the client side developers.
* Using JavaScript and NodeJS libraries on the Java platform.
* Real-world projects overview that leveraging on Java-JavaScript interactions, including Avatar, Vertx and others.

Transcript

1. www.faratasystems.com // follow me : twitter.com/gamussa Rhinoceros on the Loose Viktor Gamov Senior Software ENGINEER, Farata Systems Javaone, San Francisco, CA 2014 Applied Real-World Projects with Java and JavaScript
2. “May you live in interesting times” Chinese curse
3. Why you’re here ★you're excited about JDK8 features
5. Why you’re here ★you're excited about JDK8 features ★JavaScript enthusiast ★You could’t fit to Adam Bien’s Session
6. Who is talking? ★Software engineer and consultant
7. WE BUILD APPLICATIONS. WE CREATE IT. YOU OWN IT.
8. Who is talking? ★Software engineer and consultant ★co-author and JUG co-lead
9. DO you even javascript ?
11. http://enterprisewebbook.com Available in stores
12. http://enterprisewebbook.com
13. Not-so-distant pasT Java devs about javascript I don’t care
14. Present Java devs about javascript Gotta learn more
15. 
 print(3[3]);

17. Number.prototype[3] = ”javaone”; 
 print(3[3]);

18. www.destroyallsoftware.com/talks/wat
19. ScriptEngineManager factory = new ScriptEngineManager();
 ScriptEngine engine = factory.getEngineByName("nashorn");
 
 engine.eval("Number.prototype[3] = "javaone"; print(3[3]);")
20. String[] options =
 new String[] {
 "--persistent-code-cache",
 "--class-cache-size=50",
 “—no-java"}; * 
 NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
 NashornScriptEngine engine =
 (NashornScriptEngine) factory.getScriptEngine(options); 
 engine.eval("Number.prototype[3] = 'javaone'; print(3[3]);"); * jjs -xhelp http://cr.openjdk.java.net/~sundar/jdk.nashorn.api/8u40/javadoc/jdk/nashorn/api/scripting/NashornScriptEngineFactory.html
22. Node.js
24. Avatar.js ftw! https://avatar-js.java.net
25. Demo
26. Take first available express demo from internet what could go wrong
27. https://github.com/hacksparrow/ninja-store
29. NASHORN in «wild life» ★ vert.x ★ Avatar 2.0 ★ nodyn.io
30. ★polyglot platform ★Develop with Java, Javascript, jRuby, Groovy, jython, closure, ★Scala, php, ceylon ★integration with nashorn ★https://github.com/vert-x/mod-lang-nashorn ★Event bus (down to the browser) ★Distributed data (in v.3) ★Open source: EPL / Apache vertx.io
31. Avatar 2.0 ★polyglot platform (sort oF) ★integration with nashorn ★Node api ★Model-Store api ★Event bus ★Distributed data ★not open yet
32. ★NODE api for Java platform ★USES DYNJS - ALTERNATIVE JAVASCRIPT ENGINE ★WILL BE INTEGRATED WITH VERTX nodyn
33. Scalable JavaScript Applications with Project Nashorn [CON6423] Project Avatar: Server-Side JavaScript on the JVM [CON5675] 1 2 3 javaone 2014 taks to catch up Project Avatar: More Than Just Node.js on the JVM—Java EE Written in JavaScript [CON4091] 4 Toward Native JavaScript Performance on the JVM [CON4679]
34. Q& A
35. SHOW ME THE CODE https://github.com/gAmUssA/java-scripting-experiments
36. THANKS FOR YOUR ATTENTION www.faratasystems.com // follow me : twitter.com/gamussa