Connector Runtime with Resilience Patterns (Circuit Breaker, Retry, Rate Limiting, Pooling)

Module

Integrations

Status

VERIFIED

Description

Connector runtime managing connector instantiation, connection pooling, retry with exponential backoff, circuit breaker for fault isolation, and per-integration rate limiting. Handles both built-in and plugin connectors uniformly via ConnectorFactory.

Implementation Details

Integration service: src/Integrations/StellaOps.Integrations.WebService/IntegrationService.cs -- connector runtime managing instantiation and lifecycle
Plugin loader: src/Integrations/StellaOps.Integrations.WebService/IntegrationPluginLoader.cs -- dynamic loading of built-in and plugin connectors
Infrastructure abstractions: src/Integrations/StellaOps.Integrations.WebService/Infrastructure/Abstractions.cs -- circuit breaker, retry, rate limiting interfaces
Default implementations: src/Integrations/StellaOps.Integrations.WebService/Infrastructure/DefaultImplementations.cs -- resilience pattern implementations
Plugin contract: src/Integrations/__Libraries/StellaOps.Integrations.Contracts/IIntegrationConnectorPlugin.cs -- unified connector interface
Integration DTOs: src/Integrations/__Libraries/StellaOps.Integrations.Contracts/IntegrationDtos.cs -- connector data transfer objects
API endpoints: src/Integrations/StellaOps.Integrations.WebService/IntegrationEndpoints.cs -- connector management API
Tests: src/Integrations/__Tests/StellaOps.Integrations.Tests/IntegrationServiceTests.cs, IntegrationPluginLoaderTests.cs
Source: SPRINT_20260110_102_002_INTHUB_connector_runtime.md

E2E Test Plan

Verify circuit breaker isolates failed connectors
Test retry with exponential backoff recovers from transient failures
Verify per-integration rate limiting prevents API quota exhaustion
Test connection pooling reuses connections efficiently
Verify ConnectorFactory handles both built-in and plugin connectors

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