protected static Logger logger = L.get(SubTypeFinder.class);

private Class<T> targetType;

private SysEventId bindingEvent = SysEventId.DEPENDENCY_INJECTOR_PROVISIONED;

public SubTypeFinder(Class<T> target) {

E.NPE(target);

targetType = target;

}

public SubTypeFinder(Class<T> target, SysEventId bindingEvent) {

this(target);

this.bindingEvent = $.requireNotNull(bindingEvent);

}

protected abstract void found(Class<? extends T> target, App app);

@Override

public final void applyTo(final App app) {

app.eventBus().bind(bindingEvent, new SysEventListenerBase() {

@Override

public void on(EventObject event) throws Exception {

ClassInfoRepository repo = app.classLoader().classInfoRepository();

ClassNode parent = repo.node(targetType.getName());

parent.visitPublicNotAbstractTreeNodes(new $.Visitor<ClassNode>() {

@Override

public void visit(ClassNode classNode) throws $.Break {

final Class<T> c = $.classForName(classNode.name(), app.classLoader());

found(c, app);

}

});

}

});

}