SECORE_Update Secoredb by update scripts

[Vlad Merticariu]

From Dimitar's revision, so we can make a UpdateSecore handler which will get the request based on file names (insert, delete) and each file contain a single CRS:

1-insert: will add a new CRS definition (e.g. UnixTime) and the handler class will insert it to the BaseX database. It will contain full valid XML for the CRS definition.
2-delete: don't need the GML, just list a single gml:id, example: crs/OGC/0/UnixTime

We don't have any place to store userdb update version yet. The latest update version will be stored in BaseX (in some way..). On startup, secore will automatically read the version:

+ if no version exists, then it runs the updates and stores the latest version
+ if a version exists, then it reads the version, checks if it equals the last update version; if it doesn't equal then it runs the updates and stores the latest version

The updates (each file is a new version) (1-delete, 2-insert, …) should be stored somewhere. $RMANHOME/share/rasdaman/secore would be a good place.

With these changes, user defined CRSs can be kept and we can adjust rasdaman CRSs from userdb simultaneously.

[Bang Pham Huu]

The problem will appear in Enterprise but not in rasdaman Community.

[Dimitar Misev]

Same with the TemporalDatum, looks like some problem with the substition when flattening definitions.

[Dimitar Misev]

I'm guessing Bang the upgrade issue comes from your recent secore patches. Do you maybe have a suggestion how to best perform the upgrade automatically?

Currently the fix is to remove webapps/secoredb and restart tomcat so that secore's database is recreated from scratch.

[Bang Pham Huu]

The workaround like Dimitar has shown will delete all the users definition CRS as XQuery will store these information in secoredb.

I think we have to make a tool to backup these definition and add all of these definition later when user update Rasdaman as it is the only way to make it elegant and properly.

[Dimitar Misev]

Ok let's keep this ticket on hold, if someone else comes up with an issue we can think about it again.

[Bang Pham Huu]

The problem with this ticket is because of in another ticket I've modified the userdb (although it is called userdb but actually all the existing CRSs here belonged to Rasdaman, like Index2D, 3D,…). And then when user update from old version of SECORE to this version has this change, it has been conflict and Dimitar proposed to remove the secoredb as it will reload the new version of SECORE.

So to avoid this problem again (e.g: in userdb, Rasdaman add some other CRSs) and user already added some CRSs in userdb, and we cannot tell user to remove their SECORE for this purpose. So I propose a solution for avoiding this problem:

+ Current userdb renamed to rasdamandb as they are parametered CRSs which was added from Rasdaman.
+ Create a empty: userdb for the purpose of user (add/modify the CRSs).

Then the imported CRSs by users will not be affect by any changes from EPSG or Rasdaman db. Wait for Dimitar's answer.