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chore(comm): delete dead IntegrationCallRequest routing (Gitea #32)

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'Pattern 4: Integration Routing' — RouteIntegrationCallAsync →
SiteEnvelope(IntegrationCallRequest) → SiteCommunicationActor integration
handler — was plumbed end to end but connected at neither end: no
producer (zero callers) and no handler (AkkaHostedService never
registered LocalHandlerType.Integration). It was an early scaffold the
architecture routed around — the brokered External→Central→Site→Central
round-trip is served by the Inbound API's routed-site-script path (the
RouteTo* verbs, driven from CommunicationServiceInstanceRouter), which is
live, tested, and shares IntegrationTimeout.

Decision (#32): delete. Removed the IntegrationCall{Request,Response}
messages, RouteIntegrationCallAsync, the SiteCommunicationActor receive
block + _integrationHandler field + LocalHandlerType.Integration, and the
four tests that covered them (2 actor, 2 message-contract, 1 dispatcher-
reject, 1 mapper-reject). KEPT IntegrationTimeout — it is the live
timeout for the RouteTo* verbs. Updated the exclusion-narrative comments
(proto/mapper/dispatcher), design §4, the components doc timeout table,
and marked the known-issue RESOLVED.

Full solution build clean (0/0); Communication 634 + Host 421 green.
Net -172/+20 across 14 files. Not in the gRPC proto (was deliberately
excluded there), so no wire-format change.
This commit is contained in:
Joseph Doherty
2026-07-23 14:27:32 -04:00
parent e0f105c3b3
commit a5256e9b12
14 changed files with 20 additions and 172 deletions
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docs/known-issues/2026-07-22-integration-call-routing-is-dead-code.md
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# Integration call routing (`IntegrationCallRequest`) is dead on both ends
**Date:** 2026-07-22 · **Status:** OPEN (decision needed: wire or delete) · **Tracked:** Gitea
**Date:** 2026-07-22 · **Status:** RESOLVED (DELETED 2026-07-23) · **Tracked:** Gitea
[#32](https://gitea.dohertylan.com/dohertj2/ScadaBridge/issues/32) (filed 2026-07-23) · **Severity:**
Low (no runtime impact — the path cannot be reached) · **Area:** Central–Site Communication
> **Resolution (2026-07-23):** Decision = **delete** (option 1 below). Removed the
> `IntegrationCallRequest`/`IntegrationCallResponse` messages, `CommunicationService.RouteIntegrationCallAsync`,
> the `SiteCommunicationActor` receive block + `_integrationHandler` field + `LocalHandlerType.Integration`,
> and the four tests that covered them. `IntegrationTimeout` was **kept** — it is the live timeout for the
> Inbound API's `RouteTo*` verbs, which are the actual implementation of this "External → Central → Site →
> Central" pattern (design §4). The narrative comments that documented the exclusion (proto/mapper/dispatcher)
> were updated. Full solution build clean; Communication suite 634 green. This note is retained as the record.
## What
"Pattern 4: Integration Routing" — `CommunicationService.RouteIntegrationCallAsync` →