Move IRS to Actor model

[nickgrippin]

Closes #984

[nickgrippin]

Millennium PR!

💯0

[codecov-io]

Codecov Report

Merging #1000 into master will increase coverage by 0.06%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1000      +/-   ##
==========================================
+ Coverage   93.27%   93.33%   +0.06%     
==========================================
  Files         287      287              
  Lines        3701     3677      -24     
  Branches       67       72       +5     
==========================================
- Hits         3452     3432      -20     
+ Misses        249      245       -4

Impacted Files	Coverage Δ
...hmda/query/repository/filing/FilingComponent.scala	95.28% <ø> (+0.04%)	⬆️
...ry/projections/filing/HmdaFilingDBProjection.scala	100% <ø> (ø)	⬆️
api/src/main/scala/hmda/api/HmdaPlatform.scala	0% <ø> (ø)	⬆️
census/src/main/scala/hmda/census/model/Msa.scala	100% <100%> (ø)
.../institutions/submissions/SubmissionIrsPaths.scala	100% <100%> (ø)	⬆️
...pi/src/main/scala/hmda/api/model/IrsResponse.scala	100% <100%> (ø)	⬆️
...c/main/scala/hmda/validation/ValidationStats.scala	100% <100%> (ø)	⬆️
...ain/scala/hmda/validation/SubmissionLarStats.scala	100% <100%> (ø)	⬆️
...mda/persistence/processing/HmdaFileValidator.scala	98.55% <100%> (+0.02%)	⬆️
...ala/hmda/api/protocol/processing/MsaProtocol.scala	93.75% <100%> (ø)	⬆️
... and 2 more

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[nickgrippin]

I'm not seeing the #979 error occur on this branch. Can someone else test/confirm this?

To clarify: when viewing the Postgres lars table, I can see the correct count of lars after every file upload event.

[jmarin]

How many LAR records do we usually see here? ListMap is a collection that is only suitable for small number of records. Do you need the extra properties of a ListMap or would an immutable Map be sufficient?

[lesgou]

For the IRS, since the rows are by MSA/MD (plus a total row), there should be no more than 1000 rows. Not sure if that is considered small.

[nickgrippin]

My original concern was related to ordering and pagination. Before I switched to storing a Seq in the ValidationStats, I was worried about relying on the consistency of the iteration order through a Map. ListMap guarantees a sorted order based on insertion, but that property is no longer necessary. I'll make the switch back to an immutable Map.

[schbetsy]

@nickgrippin I'll check on #979 and try to confirm that it's fixed with this update.