Feature/540 forward lineage

[dk1844]

Heavily inspired by (backward) Lineage. After the naive implementation, common parts of the foxx service have been moved to commons.js for reuse.

(Also, there is a similar PR #1092 - let's inspire each other, @vishalag001)

API

Spline service level API

GET /spline/events/$eventId/lineage-overview/$maxDepth

• yields the impact (forward lineage) graph object

ArangoDB foxx-service level API

GET /events/:eventKey/impact-overview/:maxDepth

• yields the impact (forward lineage) graph object (from persistence)

Test-run

I have hacked the spline-ui to load .../impact-overview url instead of .../lineage-overview to test the graph data in UI to be shown:

Implements backed of #540.

[dk1844]

@wajda @cerveada At this point, the solution seems to work. Is it worth, or rather, to what degree should I try to deduplicate with the original code - there are quite obviously some similar parts...?

[wajda]

@wajda @cerveada At this point, the solution seems to work. Is it worth, or rather, to what degree should I try to deduplicate with the original code - there are quite obviously some similar parts...?

It's up to you. Of course the code quality is important, and I don't think any AQL or FOXX code has any special additions or exceptions related to the common code quality standards. Just use a usual common sense. When you're done mark it as "ready for review" and we'll take a look.

[cerveada]

What is a purpose of the two empty files?

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
2 Code Smells

No Coverage information
0.0% Duplication

[dk1844]

What is a purpose of the two empty files?

After some digging, I have discovered that it was due to file mode being inadvertently changed - probably when sharing between Win-Linux/etc while having git's core.filemode enabled. Some details here. The default settings always changed my file mode even if I reverted any changes.

So I have set git config core.filemode false on my cloned repo on Windows and I have reverted the files to the original state 👍 . Thanks for noticing

[dk1844]

Closed in favor of #1100