Published on February 19, 2014
ENTERPRISE 2.0 WITH OPEN SOURCE Frameworks like Agorava #SMWCPH
Werner Keil | Bio • • • • • • • • Consultant – Coach Creative Cosmopolitan Software Architect Java Godfather JCP Executive Committee Member Eclipse UOMo Project Lead Agorava Cofounder ETCS Guy @wernerkeil #SMWCPH
Proliferation of Social Media #SMWCPH
Social Gaga Image © 2012 Lady Gaga. All Rights Reserved. #SMWCPH
Before Java Social (JSR 357) #SMWCPH
Twitter4J • Twitter4J is an unofficial Java library for Twitter API. With Twitter4J, you can easily integrate your Java application with Twitter. • Its author, Yusuke Yamamoto used to work at Twitter. While he did, he was briefly meant to represent Twitter in the Social JSR (357) EG. • It’s light and compatible even with Java 1.4 to be integrated e.g. in mobile apps #SMWCPH
Scribe Java • Scribe is Java framework that provides basic OAuth function • It also contains configuration for a lot of Social Media • Only one dependency on Apache Common Codec • Was at the heart of Agorava 0.5 #SMWCPH
DaliCore – CMS • More than a CMS → DaliCore • Adds functionality common to users, content and permissions on top of Java EE 6. • Focus on Users and Permissions. • In about every DaliCore project, users should be able to login with existing credentials (Facebook, Twitter, Google Connect,...) • Dali modules extend DaliCore #SMWCPH
Spring Social • Spring social somewhat inspirational to Seam Social and Agorava has been around a bit longer • Spring Social module were used to create first Agorava modules (thanks to OSS and ASL2) • But it’s Spring a only module.... #SMWCPH
In Memoriam PHILIP SEYMOUR HOFFMAN July 23, 1967 – February 2, 2014 Image © 2003 Universal Pictures. All Rights Reserved. #SMWCPH
Along came JSR 357 • In march 2012 on Werner Keil’s initiative, Java Social was submitted to the JCP to become a JSR • It proposed to standardize high level access to Social Media for the Java Platform • It was voted down by 8 votes against 5 Image © 2003 Universal Pictures. All Rights Reserved. #SMWCPH
What went Wrong? (Feedback from vote) #SMWCPH
Too Broad? Maybe... #SMWCPH
Too Soon? Lack of real POC... 16 #SMWCPH
It can’t be standardized? FALSE 17 #SMWCPH
Standard part in Social Media • All social medias use REST as transmission protocol • Most of them transmit data in JSON format and some in XML • Identification & Authentication are almost entirely based on OAuth protocol 18 #SMWCPH
REST • REpresentational State Transfer : Requests about resource representation (customer, book, order) • REST is based on low level HTTP • Each resource has a unique identifier (URI). 4 HTTP verbs can be applied to a URI : GET, POST, PUT, DELETE • Java has REST standard: JAX-RS. Version 1.0 doesn’t provide client API #SMWCPH yet, JAX-RS 2.0 does 19
OAuth • OAuth is a protocol to delegate rights for an application to act on the behalf of a user who granted its rights without giving away login / password • Developed by Twitter, Magnolia and Google, it was made standard by IETF in April 2010 under RFC 5849 21 #SMWCPH
OAuth (2) • Version 2.0, simpler to use but often criticized for too many implementation was standardized in October 2012 under RFC 6749 and 6750. Already widely used (Facebook, Google, Microsoft) • All Social Media services are based on OAuth 1.0a or 2.0. • To use OAuth, one has to create an application on the targeted service to have an entry point for consumer #SMWCPH 22
OAuth has 3 steps • Creating an application in an OAauth service • Initialization: right granting phase also called OAuth Dance. At its end we obtain an access token (formed by public and secret part) to use in next step • Signature: each request is signed with an access token identifying the OAuth application granted rights to #SMWCPH Image © 2003 Universal Pictures. All Rights Reserved.
Standards that didn’t make it Some Images © 2003 Universal Pictures. All Rights Reserved. #SMWCPH
OpenSocial • Become an OpenSocial Container Get Shindig (PHP or Java) or Google implementations* OpenSocial Container • http://shindig.apache.org – Look at examples & documentation • http://code.google.com/p/opensocialresources/wiki/SampleApps 25 » * See later why #SMWCPH
OpenSocial – Shindig – Open source implementation of OpenSocial & Gadgets specification – An Apache Software project – Available in Java & PHP – http://shindig.apache.org It’s Goal: “Shindig's goal was to allow new sites to start hosting social apps in under an hour's worth of work“ • Those who tried it confirm, this failed quite miserably 26 #SMWCPH
OpenSocial – What is a Gadget? Simple gadgets for getting a Grid proxy credential and running remote commands. Both run on my own Web server. 27 #SMWCPH
OpenSocial Fork The “official” OpenSocial implementation has shifted – from Shindig to Google Code https://code.google.com/p/opensocial- resources/ And just plans to move yet again, this time to GitHub! In fact, Google’s OpenSocial Ruby Gem moved there 4 years ago, and the code hasn’t changed since https://github.com/revans/opensocial (original Google Code SVN by MySpace also still exists;-) 28 #SMWCPH
Who uses OpenSocial? • Social “Herrings” – MySpace – Orkut – Friendster – Hi5 – Jive – IBM (Lotus Notes;-) 29 #SMWCPH
Who does not use OpenSocial? • Big “Fish” – Facebook – Twitter – LinkedIn – XING* – Yammer – Foursquare – Google+ ... 30 * Abandoned it for lack of Security among other reasons #SMWCPH
What’s said about OpenSocial – OpenSocial is what Google created for MySpace (Yammer CTO and co-founder Adam Pisoni) – Out of the box, most gadgets are publicly available content that do not require authentication and authorization. (ThoughtWorks Studios about OpenSocial gadgets) 31 #SMWCPH
What’s said about OpenSocial (2) – OpenSocial is a specification that provides a standard way to share content between semitrusted applications. – While initially proposed for public facing social networking sites, it has possibly more potential within the corporate firewall (ThoughtWorks Radar, March 2012) – Latest twist: OpenSocial is now proposed as W3C recommendation 32 #SMWCPH
The non Standard parts • No standard identity management or any other API across Social Media (for Java JSR 351 tries to establish that) • More than that. There is no Social Media that guarantee: – Its API won’t change for a given period 34 – Backward compatibility when its API changes #SMWCPH
What would be a standard for Social? • A basic heart providing basic services : – OAuth and Rest request – Multi Social Media connections – Polymorphic services to enforce standard on social Media – Connector definition for Social module • So this standard would be a kind Java Social Connector definition standard 35 #SMWCPH
From JSR 357 to Agorava • Before Agorava there was Seam Social, part of the JBoss Seam 3 project • Early 2012, Seam was stopped to be merged in Apache DeltaSpike • Agorava was born mainly from Seam Social after JSR 357 attempt • One of it’s goals is to be the missing POC for a new Java Social Standard 36 #SMWCPH
Differences to Spring Social • Spring Social works primarily with Spring • Other UI frameworks than Spring MVC are harder to integrate • Focus on Facebook, so far examples only provide Single Service support, unlike Agorava Multiservice approach #SMWCPH
Differences to Spring Social (2) • Despite otherwise still somewhat active Spring community, even at Pivotal / Vmware there’s doubt about support and activity, especially after some people left • Currently supports .NET, too #SMWCPH
Differences to DaliCore • Also offering Social Container and CMS, partial OpenSocial support • Persistence support via EJB, JPA, etc. • Not so clear separation of modules, especially API/Spec and Implementation, in most cases they share same module and even package 39 #SMWCPH
Differences to DaliCore (2) • Currently seems a little heavier, strong dependencies on the Full Java EE stack, i.e. using only Web Profile or Java SE seems hard right now • Glassfish support and Integration Oracle stopped professional GF support • Demonstrated Scalability also under heavy usage 49 40 #SMWCPH
Agorava 0.7 Macro architecture – Agorava core is the «smart module» of the framework – Modules are mainly REST API and JSON mapping – Agorava provides full CDI implementation – In progress from 0.7 on: • Full Java SE support (e.g. CDI 2) • JSR 330 (Guice | Dagger, maybe Spring) support 43 #SMWCPH
Image © 2003 Universal Pictures. All Rights Reserved. Let’s Dance... #SMWCPH emo...
Agorava Book – A first book about Agorava is scheduled for release to print and online (Amazon, Google Play!, iTunes) this Spring. – Please check http://developerpress.com/en /enterprise-20-agorava-0/ 45 #SMWCPH
Links • Agorava Project: http://agorava.org #smwagorava @wernerkeil @AgoravaProj • Github: https://github.com/agorava • JBoss Developer Framework: http://www.jboss.org/jdf/about/roadmap/ #SMWCPH
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