C02.1.28 Create Application Programming Model and Application Controller Integration Architecture
Vision
Create a decoupled, future-proof architecture where: -APM serves as the "brain" handling business logic (performance scoring, alert rules) -AC acts as the "hands and feet" managing technical execution (metrics collection, optimizations)
- Clean separation enables independent evolution of business rules and technical implementations
Technical Specifications
Core Components
| Component | Responsibility | Tech Stack |
|---|---|---|
| APM (Brain) | Business rules, performance scoring | Java/Spring |
| AC (Executor) | Metrics collection, state management | Python/Go |
| Adapter Layer | Third-party integrations (Prometheus) | gRPC/REST |
| State Manager | Caching, trend analysis | Redis/Elasticsearch |
Key Integration Requirements
1.Communication Protocol
- Standardized DTOs via Protocol Buffers/JSON Schema
- Async messaging (Kafka) for high-volume events
2.Dependency Injection
- Constructor-based injection for stability
- Feature flags for adapter switching
3.State Management
- AC handles all stateful operations
- React+Redux pattern for state synchronization
Implementation Tasks
Foundation
- Define interface contracts (DTO schemas)
- Implement constructor injection framework
- Setup metrics adapter scaffolding
Core Integration
- Develop AC state management module
- Implement APM-AC command protocol
- Build Prometheus/NewRelic adapters
Optimization(Optional)
- Add circuit breakers for fault tolerance
- Implement caching strategy
- Load testing scaffolding
Quality Gates
100% interface contract test coverage
Zero shared mutable state between components
All adapters pass chaos engineering tests
Documentation includes:
- Sequence diagrams for key workflows
- Adapter compatibility matrix
- State management flowchart
Example Workflow
Non-Negotiables
Decoupling: No APM code may import AC implementations
State: All statefulness lives in AC
Security: All DTOs must validate schemas