wcst_import - objectExist endpoint should return if a coverage / layer exist as local or remote object

[Bang Pham Huu]

From this doc ​https://doc.rasdaman.org/05_geo-services-guide.html?highlight=objectexists#check-if-a-coverage-layer-exists

rasdaman/ows/objectExists only returns true/false without saying the coverage is local or remote.

In this case, wcst_import sees a remote coverage as a local coverage and tries to update it which is not allowed (exception in petascope).

If coverage/layer exists, it should return new format true:local and true:HOSTNAME:PORT (e.g: true:awi.earthserver.xyz:7000) for local coverage and remote coverage accordingly.

[Dimitar Misev]

What if there are multiple remote coverages with same name?

Maybe it is good to also add another parameter to the request: local=true|false? Then the response can be true/false.

[Bang Pham Huu]

I updated the output in the ticket description. With this it is clearer in case of duplicate coverage ids over nodes.

true:local 
true:HOSTNAME:PORT (e.g: true:awi.earthserver.xyz:7000)