This project involves a 3-tier setup (web server, application server, database). The basic coding was already done but was in a state of “proof of concept”. Almost everything was copy/pasted so there was a need for a complete refactoring.

I managed to strip down every service to several one-liners which are backed by helper methods and abstract classes doing the real work.

• project consists of 80+ services right now
• upgraded to Jersey 2.17
• switched to Java 8
• completely refactored & streamlined existing code (got rid of 60-70% of the code)
  
• extracted methods that are used by UI and Web Service tier into a separate “commons project”
• added logging (SLF4J + log4j)
• RESTful services get XML as input
• input XML is validated against XSD schema definitions
• XSD Generator creates XSD files; uses information from a description file & database
• built search functionality for user configurable generic searches
• added unit tests and scripted tests (curl)
• integrated & refactored existing shiro authentication code
• caching with Ehcache on a full table and on single objects basis
• Java Mail integration
• Encryption / decryption of email attachments (configurable)
• Quartz integration for scheduled, threaded sending of Email
• completely refactored existing MySQL code for the database
• working with git & bitbucket
• designed custom build process: generate tables for generic search functionality -> create database -> generate XSDs for input validation -> build
• Crystal Reports integration, bulk creation of reports / invoices
• Completely refactored the UI code as well