This document summarizes a presentation on the Conair project. The presentation covers the project's architecture using JEE, implementation of REST APIs with AngularJS, printing functionality using an XLS templating engine, authentication with LinkedIn OAuth 2.0, hosting on a virtual server, continuous integration with Jenkins and Cloudbees, and backups to Dropbox. The project code is open source and available on GitHub.

1. CONAIR
Java Stammtisch Würzburg
24. Mai 2014

2. _inspired by innovation www.rgigroup.de
AGENDA
2
I JEE Architecture
EJB, JPA, JAX-RS
I REST, AngularJS and
Bootstrap
I Print-Out
via Excel (based on XLS
Templating Engine)
I Authentication
via LinkedIn (OAuth 2.0)
I Hosting
Server Infrastruktur: Apache HTTP
Server, Glassfish4, MySQL
I CI / DevOps
Cloudbees
I Backup
using Dropbox

3. _inspired by innovation www.rgigroup.de
PROJECT SOURCES
3
https://github.com/mr678/conair

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JEE ARCHITECTURE
4
 EJB, JPA, JAX-RS
ECB Pattern
I http://www.cs.sjsu.edu/~pearce/modules/patterns/enterprise/ecb/ecb.htm
I http://www.oracle.com/technetwork/issue-archive/2011/11-jan/o11java-
195110.html
Boundary: EJB SLSB, JAX-RS
Controller: CDI managed beans (seldom used in ConAIR)
Entity: JPA, DTOs (own package for DTO?)
Example: accounting package

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REST, ANGULARJS AND BOOTSTRAP
5
Strict separation between
I business logic (provided by JAX-RS) and
I UI (realised with AngularJS)
REST API is still in progress 
I URI: api/<plural>/<id>
I Communication with DTOs and Map’s
AngularJS (https://angularjs.org/)
I Routing, Controller
I Problem: How to handle validation and calculation in UI and backend
Example: travel costs
Twitter Bootstrap (http://getbootstrap.com/)
I Component library

6. _inspired by innovation www.rgigroup.de
PRINT-OUT
6
The print out solution is based on xls worksheets which are prepared for
printing.
XLS Based Templating Engine
I Syntax similar to AngularJS
I Features: Replacement, Loop, Format
I Template location: OneDrive

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AUTHENTICATION
7
OAUTH2.0 is a nightmare!
Usage of third party library Scribe
https://github.com/fernandezpablo85/scribe-java
//TODO: Interceptor for REST services
I Interceptor for server side JAX-RS REST services
I Interceptor for client side AngularJS AJAX services

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HOSTING
8
I Virtual machine at server4you (8,90€/month)
www.server4you.de/vserver/
I Apache HTTP server, Glassfish v4, MySQL 5.1 on RHEL
mod_proxy  /etc/httpd/conf.d)

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CI / DEVOPS
9
I Jenkins @ Cloudbees
Problem Amazon E2C
I Packaging: maven-release-plugin
I Deployment: cargo-maven2-plugin
Cloudbees authorisation by certifcate
I Jenkins configuration
mvn release and cargo redeploy

10. _inspired by innovation www.rgigroup.de
BACKUP
10
Backup 2 Dropbox
I Authenticate via Key for Dropbox Application
https://www.dropbox.com/developers/apps/
I Dump MySQL and store server configuartion
I http://blog.matthias-reining.com/backup-a-linux-server-to-dropbox/
https://github.com/andreafabrizi/Dropbox-Uploader

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UPDATES
@matthiasreining
blog.matthias-reining.de
http://about.me/matthiasreining

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