Support ESGF CWT API extension

[huard]

Description

WPSClient does not support the owslib esgfapi objects.

[tomLandry]

Let's keep this issue alive. This ideally needs to be documented in the OGC engineering report for our Testbed-14 extension for DOE. By the way, OGC would like to have experiments delivered through notebooks. That's our chance for Birdy.

[huard]

So for your info Carsten has a branch in owslib to support the extension and a notebook example. Still needs some work but the basics are working. It's only the birdy.WPSClient part that needs to be updated to add support. I won't be able to spend time on this until a few weeks.

[tomLandry]

Ok, so tagging @davidcaron on this one. It's helping for PAVICS-Hydro too, right?

[huard]

There are no immediate plans to support the ESGF-API extension in the proposal, but this is something that could be contributed as part of the maintenance and improvements.
@davidcaron The first step would be to review the API document
Then review the esgfapi branch of owslib (it's a first pass).
Then add support for those objects in birdy.

[cehbrecht]

Link to owslib esgfwps branch and notebook example:
https://github.com/bird-house/OWSLib/tree/esgfwps/examples/notebooks

[huard]

branch fix-102 fixes some issues with non-python ids.
Adding tests for ESGF-API objects.

[huard]

Next step would be to repeat https://github.com/bird-house/OWSLib/blob/esgfwps/examples/notebooks/owslib-aims-llnl-demo.ipynb with birdy.
Will possibly require some work with headers and token apis.

[cehbrecht]

If we make owslib.esgfapi an optional dependency we could merge branch fix-102 to master ... when ready.

[huard]

@cehbrecht It's not great though to rely on an owslib branch. Do you think the owslib folks would agree to a directory of "extensions" ?
E.g. owslib.wps.ext.esgf or owslib.ext.wpsesgf ?

[cehbrecht]

I can't say if owslib people will accept. The ESGF-API is not a standard. Technically we could start an owslib esgf-api extension on birdhouse which could be optionally installed . We would avoid the insallation issue (relying on a branch) and we get some more time to tune the ESGF-API before it goes into owslib.

[huard]

Sounds good.

[cehbrecht]

Ok, I can make a start this week.

[huard]

Ok, I'll put in some time to write the aggregate process.

[cehbrecht]

@huard are you ok with the following names?

• package/repo: OWSLib-esgfwps
• python module: owslib/ext/esgfwps