//FIXME: risolvere il problema del root logger quello senza nome !!!!!
private void handleSetFile(SetFile action, Action actExpr, ACLMessage reply) throws FailureException{
if(logManager != null){
logManager.setFile(action.getFile(), action.getLogger());
}else{
throw new FailureException("LogManager not initialized");
}
reply.setPerformative(ACLMessage.INFORM);
}