The document discusses the evolution and implementation of social media integration frameworks for Java, highlighting Agorava as a successor to earlier projects like Seam Social and its interaction with JSR 357. It critiques various open-source frameworks, notably Shindig and Spring Social, while exploring the challenges of standardizing social media APIs. The document concludes with a preview of an upcoming Agorava book and its project resources.

1. ENTERPRISE 2.0 WITH OPEN SOURCE
Frameworks like Agorava

2. Who am I?
2 © 2012-2016 Creative Arts & Technologies
Werner Keil
• Consultant – Coach
• Creative Cosmopolitan
• Open Source Evangelist
• Software Architect
• JCP EC Member
• Agorava Co Founder
• JSR-363 Co Spec Lead
• IoT Enabler …
Twitter @wernerkeil
Email werner@catmedia.us

3. Proliferation
3 © 2012-2016 Creative Arts & Technologies

4. Proliferation of Social Media
4 © 2012-2016 Creative Arts & Technologies

5. Social Gaga
Image © 2012 Lady Gaga. All Rights Reserved.

6. Before Java Social
(JSR 357)
6 © 2012-2016 Creative Arts & Technologies

7. 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

8. 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

9. 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

10. 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....

11. 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.

12. What went Wrong?
(Feedback from vote)

13. Too Broad?
Maybe...

14. 14
Too Soon?
Lack of real POC...

15. 15
It can’t be standardized?
FALSE

16. 16
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

17. 17
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
didn’t provide client API yet, JAX-RS 2.0 does

18. 18
1: {
2: "firstName": "John",
3: "lastName" : "Smith",
4: "age" : 25,
5: "address" :
6: {
7: "streetAddress": "21 2nd Street",
8: "city" : "New York",
9: "state" : "NY",
10: "postalCode" : "10021"
11: },
12: "phoneNumber":
13: [
14: {
15: "type" : "home",
16: "number": "212 555-1234"
17: },
18: {
19: "type" : "fax",
20: "number": "646 555-4567"
21: }
22: ]
23: }
JSON
•JavaScript Object
Notation: Data format
inspired by JavaScript. It
became a standard for
online services including
Social Media.

19. 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

20. 20
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

21. 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
Image © 2003 Universal Pictures. All Rights Reserved.

22. Standards that
didn’t make it
Some Images © 2003 Universal Pictures. All Rights Reserved.

23. 23
OpenSocial Container
•Become an
OpenSocial Container
Get Shindig (PHP or Java)
or Google implementations*
• http://shindig.apache.org
• Look at examples & documentation
• http://code.google.com/p/opensocial-resources/wiki/SampleApps
• * See later why
OpenSocial

24. 24
• 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
•And in 2015 Apache archived Shindig
OpenSocial – Shindig

25. Simple gadgets for getting a Grid proxy credential and
running remote commands. Both run on my own
Web server.
OpenSocial – What is a Gadget?
25 © 2012-2016 Creative Arts & Technologies

26. 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;-)
OpenSocial Fork
26 © 2012-2016 Creative Arts & Technologies

27. 27
Who uses OpenSocial?
•Social “Herrings”
• MySpace
• Orkut
• Friendster
• Hi5
• Jive
• IBM (Lotus Notes;-)

28. 28
Who does not use
OpenSocial?
•Big “Fish”
• Facebook
• Twitter
• LinkedIn
• XING*
• Yammer
• Foursquare
• Google+
...
* Abandoned it for lack of Security among other reasons

29. 29
• 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)
What’s said about
OpenSocial

30. 30
• OpenSocial is a specification that provides a
standard way to share content between semi-trusted
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 was proposed as W3C
recommendation
What’s said about
OpenSocial (2)

31. 31
Sun Microsystems
Socialsite: Shindig + gadget based UI written in Java
Open Source https://socialsite.dev.java.net/
SocialSite –
Sun’s Approach to Social

32. 32
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
• Backward compatibility when its API changes

33. 33
•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
What would be a standard
for Social?

34. 34
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

35. 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

36. 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

37. 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
•DaliCore no longer Open Source
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38. 49
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
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39. Differences to
Oracle SocialLink
•Feels almost like Eclipse or Microsoft project
(ISocialNetwork)
•Still very new, looks immature in several areas
•Seemingly non-existent community support
•No Modularity or separation between API and
Implementation
•Last commit 3 years ago, so it’s practically dead
39 © 2012-2016 Creative Arts & Technologies

40. 40
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

41. In Memoriam
January 8, 1947 – January 10, 2016
David Bowie
Image © 1983 EMI America Records. All Rights Reserved.

42. Image © 2003 Universal Pictures. All Rights Reserved.
Let’s Dance...emo...

43. 43
Agorava Book
• A first book about Agorava is
scheduled for release to print
and online (Amazon, Google
Play!, iTunes) this Spring.

44. • Agorava Project:
http://agorava.org
• Github:
https://github.com/agorava
#Agorava
@wernerkeil
@AgoravaProj
Links
44

45. Q & A