Developer's notes for SCR 375
Marnix Bindels, January 18 2007

The web-app offers 2 new pages to implement the "Overview of files used for the
planning of a revolution", a very simple overview of all current revolutions on
one page and a per revolution details on the other page.

The overview page looks like a panel of indicator lights which can be off,
yellow, green or red. off: nothing to report, green: all's well, yellow: ISOC
has work to do, red: something out of the ordinary

The overview shows a row of indicators for each revolution, one for each type of
files: PSF, POS, TSF and ECS. The color of each light is determined as follows:

ECS: is ECS Imported? - Yes: GREEN
        - No: is ECS Received? - Yes: YELLOW
                 - No: OFF
		 
TSF: is ECSReceived? - Yes: GREEN
        - No: is TSF Received for Last POS Generated? - Yes: GREEN
	   - No: is TSF Received for Last POS Sent? - Yes: YELLOW
	      - No: is POS Generated? - Yes: RED
	          - No: OFF
		  
POS: is POS Sent for Last POS Generated?
        - Yes: last POS Generated Uses Last PSF Received? - Yes: GREEN
	   - No: RED
	- No: is POS Sent (at all)? - Yes: YELLOW
	   - No: is POS Generated (at all)? - Yes: RED
	      - No: is PSF Imported? - Yes: YELLOW
	         - No: OFF
		 
PSF: is PSF Received? - No: OFF
        - No: is Last PSF Imported? - Yes: GREEN
	   -No: YELLOW
	   
The database has been updated to version 7.1, introducing the REVOLUTIONFILE table. 
The RevolutionStatus class combines information from this new table and in the
RevolutionSchedule and Exp tables to provide answers to the questions above.	   
	   
The PushPullDaemon (PPD) has been extended to insert records into the REVOLUTIONFILE
table upon receipt of PSF, TSF and ECS files. The 
nl.esa.estec.isoc.system.PushPullDaemonFileEventLogger class serves as the PPD's 
entry (see scripts/ppd/ppd_log_file.sh) which will be available from isoc-core.

OSS has been adapted to insert references to POS files, once those have been 
generated, as well as to remove references to PSF files when those are rejected.

"That's All Folks!" - BB.