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Signals Router Transport

Module

Signals

Status

IMPLEMENTED

Description

Event routing transport layer for signals enabling alternative message delivery paths beyond Redis, supporting pluggable transport backends for fact propagation.

Implementation Details

  • Modules: src/Signals/StellaOps.Signals/Services/, src/Signals/StellaOps.Signals/Options/
  • Key Classes:
    • RouterEventsPublisher (src/Signals/StellaOps.Signals/Services/RouterEventsPublisher.cs) - routes signal events via configurable transport backend
    • RedisEventsPublisher (src/Signals/StellaOps.Signals/Services/RedisEventsPublisher.cs) - Redis-based transport for signal event delivery
    • MessagingEventsPublisher (src/Signals/StellaOps.Signals/Services/MessagingEventsPublisher.cs) - messaging-based transport backend
    • InMemoryEventsPublisher (src/Signals/StellaOps.Signals/Services/InMemoryEventsPublisher.cs) - in-memory transport for testing
    • NullEventsPublisher (src/Signals/StellaOps.Signals/Services/NullEventsPublisher.cs) - no-op transport for disabled routing
    • SignalsRouterEventsOptions (src/Signals/StellaOps.Signals/Options/SignalsRouterEventsOptions.cs) - configuration for router transport selection
  • Interfaces: IEventsPublisher (src/Signals/StellaOps.Signals/Services/IEventsPublisher.cs)
  • Source: SPRINT_0143_0001_0001_signals.md

E2E Test Plan

  • Configure RouterEventsPublisher with Redis transport and verify signal events are delivered
  • Switch transport to MessagingEventsPublisher and verify events are delivered via messaging backend
  • Verify InMemoryEventsPublisher captures events in memory for test assertions
  • Publish a reachability fact update and verify it is routed to subscribers via the configured transport
  • Verify transport selection via SignalsRouterEventsOptions configuration