Package com.framed.orchestrator

Class Factory

java.lang.Object

com.framed.orchestrator.Factory

public class Factory
extends Object

The Factory class provides dynamic instantiation of Service implementations based on JSON configuration. It uses Java reflection to match constructor parameters with configuration keys and injects an EventBus where required.

Features:

• Dynamically loads classes by name using Class.forName(String).
• Matches constructor parameters with JSON configuration keys.
• Automatically injects an EventBus into constructors.

Matching Logic:

• If a constructor parameter name matches a key in the JSON config, its value is used.
• If a parameter type is EventBus, the provided event bus is injected.
• If no matching constructor is found, a ClassNotFoundException is thrown.

Method Summary

Modifier and Type	Method	Description
static Service	instantiate(org.json.JSONObject config, EventBus eventBus)	Instantiates a Service implementation based on the provided configuration and event bus.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

instantiate

public static Service instantiate(org.json.JSONObject config,
 EventBus eventBus)
                           throws ClassNotFoundException,
InvocationTargetException,
InstantiationException,
IllegalAccessException

Instantiates a Service implementation based on the provided configuration and event bus.

The method attempts to find a constructor whose parameters match the keys in the JSON config or require an EventBus. If a match is found, the constructor is invoked with the resolved arguments.

Parameters:

config - the JSON configuration containing the class name and constructor arguments

eventBus - the event bus to inject into constructors that require it

Returns:

a new Service instance

Throws:

ClassNotFoundException - if no matching constructor is found or the class cannot be loaded

InvocationTargetException - if the constructor invocation fails

InstantiationException - if the class cannot be instantiated

IllegalAccessException - if the constructor is not accessible