[frontend/backend]Adding the ability to import/export mappers

[Dimfacion]

Proposed changes

• Adding the ability to import/export mappers

Related issues

• Ability to import / export XLS mappers #1260

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

[codecov]

Codecov Report

Attention: Patch coverage is 21.56863% with 40 lines in your changes missing coverage. Please review.

Project coverage is 28.51%. Comparing base (8d4b644) to head (3acd8d1).
Report is 5 commits behind head on master.

Files	Patch %	Lines
...rc/main/java/io/openbas/rest/mapper/MapperApi.java	0.00%	18 Missing ⚠️
...main/java/io/openbas/rest/helper/RestBehavior.java	0.00%	7 Missing ⚠️
...rc/main/java/io/openbas/service/MapperService.java	60.00%	6 Missing ⚠️
...ava/io/openbas/rest/exception/ImportException.java	0.00%	4 Missing ⚠️
...openbas/rest/mapper/export/MapperExportMixins.java	0.00%	3 Missing ⚠️
...io/openbas/rest/mapper/form/ExportMapperInput.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1263      +/-   ##
============================================
- Coverage     29.05%   28.51%   -0.55%     
+ Complexity     1300     1289      -11     
============================================
  Files           507      510       +3     
  Lines         13056    13114      +58     
  Branches        747      748       +1     
============================================
- Hits           3794     3740      -54     
- Misses         9094     9214     +120     
+ Partials        168      160       -8     

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[RomuDeuxfois]

I don't understand why we need to recreate an object here

[Dimfacion]

It's kind of a shortcut : instead of exporting objects that match what is in the database, we export the object that would allow us to recreate the same mapper (which is why the import code is so small). This is why we're converting it into ImportMapperAddInput.
It result in a smaller file but to be honest, I'm kind of unsure if that's the best way to do it as it assumes that the export is made so that it can be imported. What do you think of it ?

[RomuDeuxfois]

We need to talk about it.
We have an existing mechanism to export based on Json annotation. We can challenge this too to check if there are a modern way to do it.

[RomuDeuxfois]

@Dimfacion I used Mixin to homogenise the export mechanism.
I let you give your opinion about the new code.

[savacano28]

Code: ok, Tested: ok