import jdk.nashorn.internal.codegen.types.Type;

import java.util.HashMap;

public class IOC {

/**

* This is experimental - IOC-Container doesn't inject dependencies yet.

*/

private static final IOC instance = new IOC(new HashMap<>());

public IOC(HashMap<Type, Object> injectables) {

this.injectables = injectables;

}

private final HashMap<Type, Object> injectables;

public static IOC instance() {

return instance;

}

@SuppressWarnings("unchecked cast")

public <T> T resolveObject(Class<? extends T> type) throws ClassNotFoundException {

if (!canResolve(type)) throw new ClassNotFoundException("cannot create class");

return (T) injectables.get(Type.typeFor(type)); // cast is checked by logic

}

public <T> void setClassObject(T object) {

injectables.put(Type.typeFor(object.getClass()), object);

}

public boolean canResolve(Class resolveType){

return injectables.keySet().contains(Type.typeFor(resolveType));

}

}