rust-rabbit 0.2.0

A high-performance Rust library for RabbitMQ messaging with advanced features: metrics, circuit breaker, batching, and graceful shutdown
Documentation
# RustRabbit Roadmap


## 📋 Project Status


### ✅ Completed Features (v0.1.0)

- **Core Messaging**: Publisher/Consumer pattern implementation
- **Builder Pattern**: Fluent API for all configuration
- **Advanced Retry**: Exponential backoff with delayed message exchange
- **Health Monitoring**: Real-time connection status monitoring
- **Connection Management**: Connection pooling with failover
- **Error Handling**: Comprehensive error types and recovery
- **Documentation**: Complete API documentation with examples
- **Type Safety**: Strongly typed message handling with serde

### 🔧 Current Architecture

```
┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   RustRabbit    │    │ ConnectionMgr   │    │ HealthChecker   │
│   (Facade)      │◄──►│ (Pool + Retry)  │◄──►│ (Monitoring)    │
└─────────────────┘    └─────────────────┘    └─────────────────┘
         │                       │
         ▼                       ▼
┌─────────────────┐    ┌─────────────────┐
│   Publisher     │    │   Consumer      │
│ (Send Messages) │    │ (Handle Messages)│
└─────────────────┘    └─────────────────┘
         │                       │
         ▼                       ▼
┌─────────────────┐    ┌─────────────────┐
│ DelayedRetry    │    │ MessageHandler  │
│ (x-delayed-msg) │    │ (Trait-based)   │
└─────────────────┘    └─────────────────┘
```

---

## 🚀 Roadmap


### Phase 1: Stability & Performance (v0.2.0) - Q1 2025

**Goal**: Production-ready stability and performance optimization

#### 🎯 Priority Features

- [ ] **Integration Tests with Real RabbitMQ**
  - Docker Compose setup for CI/CD
  - Integration test suite with testcontainers
  - Performance benchmarks and stress tests
  
- [ ] **Observability & Metrics**
  - Prometheus metrics integration
  - OpenTelemetry tracing support
  - Structured logging with correlation IDs
  
- [ ] **Connection Resilience**
  - Automatic reconnection with circuit breaker
  - Connection failover to multiple brokers
  - Graceful shutdown handling

#### 📊 Performance Optimizations

- [ ] **Message Batching**
  - Batch publishing for high throughput
  - Configurable batch size and timeout
  - Memory-efficient batching strategies

- [ ] **Zero-Copy Optimizations**
  - Direct byte buffer handling
  - Minimal allocations in hot paths
  - Custom serialization for performance-critical scenarios

#### 🔧 Developer Experience

- [ ] **CLI Tools**
  - Message inspection utilities
  - Queue management commands
  - Development server with hot reload

- [ ] **IDE Integration**
  - VS Code extension for debugging
  - Message flow visualization
  - Queue browser integration

### Phase 2: Advanced Messaging Patterns (v0.3.0) - Q2 2025

**Goal**: Enterprise-grade messaging patterns and features

#### 🏗️ Messaging Patterns

- [ ] **Request-Response Pattern**
  - RPC-style messaging with timeouts
  - Correlation ID management
  - Response routing and multiplexing

- [ ] **Saga Pattern Support**
  - Distributed transaction coordination
  - Compensation action handling
  - State machine integration

- [ ] **Event Sourcing**
  - Event store integration
  - Snapshot management
  - Replay capabilities

#### 🔄 Advanced Retry & Recovery

- [ ] **Poison Message Handling**
  - Dead letter queue analysis
  - Message replay utilities
  - Error classification system

- [ ] **Retry Strategies**
  - Linear, exponential, custom backoff
  - Per-message-type retry policies
  - Retry attempt tracking and analytics

#### 🌐 Multi-Protocol Support

- [ ] **Protocol Adapters**
  - MQTT bridge for IoT scenarios
  - Apache Kafka compatibility layer
  - Redis Streams integration

### Phase 3: Cloud-Native & Ecosystem (v0.4.0) - Q3 2025

**Goal**: Cloud-native deployment and ecosystem integration

#### ☁️ Cloud Integration

- [ ] **Kubernetes Operators**
  - Custom resource definitions
  - Auto-scaling based on queue depth
  - Helm charts for easy deployment

- [ ] **Cloud Provider Integration**
  - AWS SQS/SNS adapter
  - Azure Service Bus integration
  - Google Cloud Pub/Sub support

#### 🔐 Security & Compliance

- [ ] **Enhanced Security**
  - TLS 1.3 support with certificate management
  - SASL authentication mechanisms
  - Message encryption at rest and in transit

- [ ] **Compliance Features**
  - GDPR compliance utilities
  - Audit logging and retention
  - Message anonymization tools

#### 📈 Enterprise Features

- [ ] **Multi-Tenancy**
  - Tenant isolation and resource quotas
  - Per-tenant configuration
  - Usage tracking and billing

- [ ] **Advanced Monitoring**
  - Real-time dashboards
  - Predictive analytics for queue health
  - Automated alerting and remediation

### Phase 4: AI & Advanced Analytics (v0.5.0) - Q4 2025

**Goal**: AI-powered messaging optimization and analytics

#### 🤖 AI Integration

- [ ] **Smart Routing**
  - ML-based message routing optimization
  - Predictive load balancing
  - Anomaly detection in message patterns

- [ ] **Auto-Tuning**
  - Self-optimizing retry policies
  - Dynamic connection pool sizing
  - Performance bottleneck detection

#### 📊 Advanced Analytics

- [ ] **Message Flow Analysis**
  - End-to-end message tracing
  - Performance bottleneck identification
  - Cost optimization recommendations

- [ ] **Predictive Scaling**
  - Queue depth prediction
  - Resource utilization forecasting
  - Capacity planning automation

---

## 🎯 Long-term Vision


### Technical Excellence

- **Zero-Downtime**: Seamless upgrades and maintenance
- **Sub-millisecond Latency**: Optimized for high-frequency trading
- **Horizontal Scaling**: Handle millions of messages per second
- **Cross-Platform**: Support for WebAssembly and embedded systems

### Ecosystem Growth

- **Community-Driven**: Open source with strong community
- **Plugin Architecture**: Extensible with third-party integrations
- **Language Bindings**: Python, Node.js, and Go clients
- **Standard Compliance**: AMQP 1.0 and CloudEvents support

### Developer Experience

- **Zero Configuration**: Intelligent defaults for common scenarios
- **Live Debugging**: Real-time message flow visualization
- **Auto-Documentation**: Self-documenting message schemas
- **Testing Framework**: Built-in testing utilities for message flows

---

## 🤝 Contributing


### How to Get Involved

- **Feature Requests**: Submit ideas via GitHub Issues
- **Code Contributions**: Follow our contribution guidelines
- **Documentation**: Help improve docs and examples
- **Testing**: Add integration tests and benchmarks

### Development Process

1. **RFC Process**: Major features start with RFC discussion
2. **Prototyping**: Proof-of-concept implementation
3. **Community Review**: Public review and feedback
4. **Implementation**: Feature development and testing
5. **Documentation**: Update docs and examples
6. **Release**: Version bump and change log

### Priority Areas for Contributors

- Integration tests with various RabbitMQ configurations
- Performance benchmarks and optimization
- Additional message patterns and use cases
- Cloud provider integrations
- Documentation and examples

---

## 📅 Release Schedule


### Versioning Strategy

- **Major Releases**: Breaking changes, new architecture
- **Minor Releases**: New features, backward compatible
- **Patch Releases**: Bug fixes, security updates

### Release Cadence

- **Patch Releases**: Monthly (bug fixes)
- **Minor Releases**: Quarterly (new features)
- **Major Releases**: Yearly (breaking changes)

### Support Policy

- **Current Major**: Full support with new features
- **Previous Major**: Security and critical bug fixes
- **Legacy Versions**: Best effort support

---

## 📈 Success Metrics


### Technical Metrics

- **Performance**: Message throughput and latency
- **Reliability**: Uptime and error rates
- **Scalability**: Concurrent connections and queue depth

### Community Metrics

- **Adoption**: Downloads and GitHub stars
- **Engagement**: Issues, PRs, and discussions
- **Ecosystem**: Third-party plugins and integrations

### Business Metrics

- **Production Usage**: Companies using in production
- **Use Cases**: Diversity of application scenarios
- **Feedback**: User satisfaction and feature requests

---

*This roadmap is living document and will be updated based on community feedback and changing requirements.*