1. Intoroduction of
CategoLJ2
@making (Toshiaki Maki)
http://blog.ik.am
JJUG CCC 2014 Spring LT 2014/05/18

2. What is CategoLJ2
Originally, Categorizer
written in Lisp (since 2009)
Rewrite with Java (2011)
2nd version (2013)
Used as a simple blogware
History: http://blog.ik.am/#/entries/193
https://github.com/making/categolj2-backend

3. Featuare
Simple!
Portable!
RESTful!

4. Used Technologies
Java8 & Spring 4
Spring MVC
Spring Security OAuth
Spring Data JPA & JPA 2.1 (Hibernate)
Hibernate Search
Flyway
Backbone.js

5. Normal RESTful
Architecture
Resource Server
Authorization
Server
Client
OAuth API
Resource API
access token

6. CategoLJ2
Architecture
All in One jar file
Resource
Authorization
Client
(Admin)
Embedded Tomcat
Client
(Frontend)
Flyway
Hazelcast RDB
(H2 or
MySQL)

7. CategoLJ2
Architecture
All in One jar file
Resource
Authorization
Client
(Admin)
Embedded Tomcat
Client
(Frontend)
Flyway
Hazelcast RDB
(H2 or
MySQL)

8. CategoLJ2
Architecture
All in One jar file
Resource
Authorization
Client
(Admin)
Embedded Tomcat
Client
(Frontend)
Flyway
Hazelcast RDB
(H2 or
MySQL)
Resource Owner
Password Credentials Grant

9. Technology Stack
Client(Admin) Resource Server
Backbone.js
Handlebars
Spring
Spring MVC
Jackson2
Spring Data JPA
Hibernate
Embedded Tomcat
Java 8

10. Admin Console

11. Admin Console

12. Admin Console

13. Admin Console

14. Admin Console

15. (Default) Frontend

16. Quick Launch
wget https://github.com/
making/categolj2-backend/
releases/download/0.12.0/
categolj2-backend.jar
java -jar categolj2-backend.jar
Download & Run!

17. Default Behavior
Use file based H2 database
DB migration using Flyway
No need to set up any middleware

18. See Document
https://github.com/making/
categolj2-backend#quick-
launch

19. Scalable
java -jar xxx.jar
-httpPort 8081
port: 8080
port: 8081
java -jar xxx.jar
-httpPort 8080
LB
Hazelcast
Hazelcast
RDB
Distributed
Cache
multicast

20. Scalable
java -jar
xxx.jar -
java -jar
xxx.jar -
LB
Hazelc
ast
Hazelc
ast
RDB
Hazelc
ast
Hazelc
ast
Hazelc
ast
Hazelc
ast
Hazelc
ast
Hazelc
ast

21. Write your own client!
All in One jar file
Resource
Authorization
Client
(Admin)
Embedded Tomcat
Client
(Frontend)
Flyway
Hazelcast
Your Client
(Frontend)
REST API

22. Write your own client!
All in One jar file
Resource
Authorization
Client
(Admin)
Embedded Tomcat
Client
(Frontend)
Flyway
Hazelcast
Your Client
(Frontend)
REST API
JavaScript, JavaFX, JSF, Other langs …

23. client written in
Go lang
https://github.com/making/categolj2-cli
Command Line Interface for CategoLJ2
$ catego gets
$ catego get {entryId}
$ catego post hogehoge.md
$ catego put {entryId}.md

24. REST API Document
https://github.com/making/
categolj2-
backend#backend-apis
Comming soon…
using Swagger

25. Replace your blog!

26. with “はじめてのBootstrap”
http://amzn.to/hajiboo

27. Thank you