Configurator
Class Diagrams
The Machc Configurator Commons Library provides a robust and extensible foundation for managing application configurations across diverse environments and provisioning methods. It simplifies how developers retrieve and handle configurations, enabling dynamic, scalable, and maintainable solutions that align with evolving business and operational needs.
This library ensures that configuration management remains flexible, modular, and use-case agnostic, serving as a critical component for any application requiring seamless access to runtime settings, static properties, or dynamically-generated values.
Key Features
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Multi-Source Configuration Provisioning:
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Supports retrieving configurations from multiple sources, such as:
- Environment Variables: Perfect for deployment-specific settings like API keys or database credentials.
- Configuration Files: Supports formats like JSON, YAML, or
.properties. - Remote Services: Fetch configurations from remote APIs, cloud storage (e.g., AWS S3), or key management tools.
- In-Memory Overrides: Enables manual overrides for quick testing or customization at runtime.
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Hierarchical Configuration Management:
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Resolves configuration values by prioritizing sources (e.g., environment variables > config file > hardcoded defaults).
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Automatically merges configurations, ensuring the most specific values are applied.
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Dynamic Reloading:
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Allows configurations to be updated at runtime without restarting the application.
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Ideal for long-running processes or microservices needing runtime flexibility.
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Validation and Defaults:
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Includes built-in validation to ensure all required configurations are provided and correctly formatted.
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Fallbacks to default values if no explicit configuration is provided.
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Environment Awareness:
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Handles environment-specific configurations (e.g., development, staging, production), making it easy to adapt applications for different deployments.
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Modular API:
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Provides a clean and extensible API to integrate with custom configuration sources or specific business needs.
Use Cases
- Applications needing environment-aware configuration loading (e.g., staging vs. production settings).
- Dynamically-managed configurations for distributed systems or microservices.
- Runtime overrides for testing and debugging without code changes.
- Multi-tenant systems requiring per-tenant customization of settings.
- Large-scale applications integrating with external configuration providers like AWS Parameter Store, Consul, or HashiCorp Vault.
Clean Architecture Alignment
The library aligns with Clean Architecture principles, ensuring configuration management remains decoupled from business logic or system-specific implementations:
- Separation of Concerns: Isolates configuration logic from application core, interactors, and entities.
- Reusability: Provides a generic solution that can be integrated into various Machc domains or standalone projects.
- Testability: Configurations can be mocked or overridden for isolated testing of business logic.