My JAU Updater

UseCase

Business Value

Allow for automatic update of Java-auto-updater on remote locations.

MJAUU State and Events

Alternative ending

Main functionallity:

1. Download required artifacts.
2. Start mjauu
   1. Check if another instance of MJAUU has started?
3. Unpack new version of JAU to tmp area
   1. Verify unpacking?
4. Stop JAU service
5. Verify MJAUU has write access to JAU files.
6. Remove JAU service from Windows Services
7. Move JAU files in place
8. Update configuration files.
9. Install JAU service
10. Report status to CS
11. Start JAU service
12. Report status to CS
13. Stop MJAUU

CS = Config Service
JAU = Java Auto Update
MJAUU = My JAU Updater

Logs from MJAUU should be forwarded to CS.

Download artifacts:

• start-majuu.bat
• mjauu-<version>.jar
• jau-<version>.zip

start-mjauu

This .sh/.bat file will have a single responsibillity:

• Start mjauu in separate process.
  It is essential that the mjauu process runs, when JAU process is killed. This is due to beeing able to safely overwrite existing files.

mjauu

mjauu must be easy to start, and possibly without command line arguments. is started with "java jar mjauu<version>.jar"
TODO: figure out how to forward client spesific content to mjauu, if needed.

jau-<version>.zip

This is the new package of all contents needed for JAU.

Code

• https://github.com/Cantara/JAU-Updater-App

References

• http://stackoverflow.com/questions/9075098/start-windows-service-from-java

Design notes