Orion on Node.js –

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OrionOnNode

Orion on Node.js presentation for EclipseCon Boston - March 2013

On Github kenwalker / OrionOnNode

Orion on Node.js

EclipseCon Boston - March, 2013

kenwalker (github) / @kwalker / @orionhub Orion Lead and Orion Dev Lead at IBM Canada Clone this talk into OrionHub.org from GitHub

npm install orion

npm start orion

25 minutes for questions...

What is Node.js?

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

What is Node.js?

... a platform, V8, fast, scalable, event-driven, lightweight...

lightweight?

node-v0.10.1-darwin-x64.tar.gz - ~4 MB Java 7 Mac OS X x64 - ~143 MB

APIs in Node.js

Buffers, Child Processes, Clustering, Crypto, Events, FileSystem, HTTP, HTTPS, Net, OS, Processes, Streams, Timers, SSL, UDP, ZLib, others

What is NPM?

  • Node Package Manager
  • Manages dependencies for an application
  • Can install, remove and libraries
  • Can invoke and run Applications

A simple Express.js Server

















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/*global require window console */‌








				
Lets tie Node.js to Orion

				Open Source Platform for Cloud Based Development
				
  • Orion's client is JavaScript, CSS and HTML
    • 
					
  • Simply served up to the browser...statically
    • 
					
  • Consists of pages and plugins within pages
    • 
					
  • Plugins then rely on RESTful APIs to the server
    • 
				
Here are some of our Java Server REST APIs

				
Matched to Orion Plug-ins calling these APIs

				
Our Node implementation is missing some capabilities

				
  • The Orion Node server currently has no Git support, or an indexing search system, nor preferences
    • 
				
  • However, we've added some functionality to support Node development such as node, npm and debugging
    • 
				
The Node.js REST APIs

				
Matched to Orion Plug-ins

				
So, we need some dependencies

				
  • 
Connect - extensible HTTP server framework
    • 
					
  • 
sax - An evented streaming XML parser
    • 
					
  • 
socket.io - Cross-browser easy WebSocket-like API
    • 
					
  • 
deferred-fs - Provides a promise-based API for Node's filesystem APIs (written by Orion team)

    • 
					
  • 
node-inspector - Web Inspector based nodeJS debugger
    • 
					
  • 
npm - node package manager (built-in to Node)
    • 
				
Handle requests using Connect.js

        		   			
















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// API handlers‌








				
So you get a Navigator on our workspace

				
Editor on a Node application

				
							
				
NPM support to install packages

				
							
				
Node support to run applications

				
							
				
Does searching files work?

				
The default file service implementation supports a crawling search engine

				
That does mean searches are slower however

				
Do plugins work?

				
Plugins are all client side, in the browser so they do work

				
Since we have no preference store, they are not remembered for you however

				
Demo

				
How to install Orion on Node.js?

					

					npm install orion
					
edit orion.conf to set a workspace directory

					workspace=/home/pi/Workspace/
					
then start the Orion package using npm

					npm start orion
				
You can extend it

					
Your application can use orion as a connect module

        		   			


































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// Make sure that we can .use() the orion server as a connect module.‌




it('exports #createServer', function(done) {‌




    app.use(orion({‌




        workspaceDir: WORKSPACE‌




    }))‌




    .request()‌




    .get('/file/project/fizz.txt')‌




    .expect(200, 'hello world', done);‌




});‌



‌







				
This is our test to verify it works

				
You can work on and contribute to it

					

						
						Write shell extensions for Orion on Node is a good starting point (Ruby? Php? Lua?)
					

				
Find out more

					
Read our blog at Planet Orion

					
Check out the Orion BUZZ

					
Lots of information in the Orion Wiki

					
Follow @OrionHub on Twitter

					
Create an account and try it at OrionHub

					

						kenwalker (github) / @kwalker / @orionhub
						Orion Lead and Orion Dev Lead at IBM Canada
						Clone this talk into OrionHub.org from GitHub