[Task]: Cleanup XML of transform String Operations

[hansva]

What needs to happen?

Cleanup XML of transform String Operations

Issue Priority

Priority: 3

Issue Component

Component: Metadata

[gvdutra]

I can see several tasks to cleanup XML of transform. could you please elaborate more what needs to be done? Thank you.

[hansva]

Hi Gabriel!
Yes I can explain. All these tickets are technical debt that we want to cleanup.
A good example can be found in following PRs #2963, #2910 and there are many more examples.

We want to get rid of the getXml() and loadXml() methods in the Action classes and the TransformMeta classes.
for this we have a system with annotations @HopMetadataProperty() If we clean all of this we can in a later stage move to json or yaml representations of our pipelines and workflows.

Some extra things to take into account is when cleaning this up all arrays have to be moved to Lists.

The best way to get started on this is to start with an Action eg. #1992 as these usually do not have complex nested XML. Starting with a transform (especially those with many options and nested structures (file/field lists) can become quite complex.

If you start on these and ever get stuck feel free to create a draft PR and ask for some help.