Embedded Files
1. Strategy Pattern
Core Idea: Define an interface (or abstract class) that encapsulates the behavior you want to configure. Implement concrete strategies for each variant of that behavior. Use configuration (e.g., from a YAML file, database, or environment variables) to select the appropriate strategy at runtime.
Benefits: Cleanly separates the orchestration logic from the concrete implementations. Promotes code reusability and testability.
Kotlin
interface Orchestrator {
fun execute()
}
class LayerAOrchestrator : Orchestrator {
override fun execute() { /* ... */ }
}
class LayerBOrchestrator : Orchestrator {
override fun execute() { /* ... */ }
}
// Configuration (e.g., from YAML)
val layer = "LayerA"
val orchestrator = when (layer) {
"LayerA" -> LayerAOrchestrator()
"LayerB" -> LayerBOrchestrator()
else -> throw IllegalArgumentException("Invalid layer configuration")
}
orchestrator.execute()
2. Reflection
Core Idea: Leverage Kotlin's reflection capabilities to dynamically instantiate classes or invoke methods based on configuration.
Benefits: Highly flexible and adaptable to changing requirements. Can handle complex configuration scenarios.
Caveats: Can be less performant than other approaches. Requires careful error handling and type safety considerations
Kotlin
// Configuration (e.g., from YAML)
val className = "com.example.LayerAOrchestrator"
val orchestratorClass = Class.forName(className).kotlin
val orchestrator = orchestratorClass.constructors.first().call() as Orchestrator
orchestrator.execute()
Functional Approach
Core Idea: Represent your orchestration steps as functions or lambdas. Use higher-order functions (e.g., map, filter, reduce) and configuration data to compose and execute these steps dynamically.
Benefits: Can lead to concise and expressive code. Promotes functional programming principles.
Kotlin
val steps = mapOf(
"LayerA" to { /* ... */ },
"LayerB" to { /* ... */ }
)
val layer = "LayerA"
steps[layer]?.invoke()
4. Dependency Injection (DI)
Core Idea: Use a DI framework (e.g., Koin, Dagger) to manage the creation and wiring of your orchestration components. Configuration can be used to instruct the DI container on which implementations to provide.
Benefits: Decouples components, making them easier to test and replace. Promotes loose coupling and modularity.
Caveats: Adds some complexity to the project setup. May require a learning curve for DI frameworks.
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