@Override
  public void stop() {
    super.stop();
    for (FermatEventListener fermatEventListener : listenersAdded) {
      eventManager.removeListener(fermatEventListener);
    }
    listenersAdded.clear();

    agente.stop();
  }
  @Override
  public void start() throws CantStartPluginException {

    try {

      FermatEventListener fermatEventListener;
      FermatEventHandler fermatEventHandler;

      this.cryptoCustomerActorDao =
          new CryptoCustomerActorDao(pluginDatabaseSystem, pluginFileSystem, pluginId);
      this.cryptoCustomerActorDao.initializeDatabase();

      fermatManager =
          new CustomerActorManager(
              this.cryptoCustomerActorDao,
              cryptoBrokerANSManager,
              errorManager,
              getPluginVersionReference());

      ActorCustomerExtraDataEventActions handlerAction =
          new ActorCustomerExtraDataEventActions(
              cryptoBrokerANSManager, cryptoCustomerActorDao, cryptoBrokerActorConnectionManager);

      fermatEventListener =
          eventManager.getNewListener(EventType.CRYPTO_BROKER_QUOTES_REQUEST_UPDATES);
      fermatEventHandler = new CryptoCustomerExtraDataEventHandler(handlerAction, this);
      fermatEventListener.setEventHandler(fermatEventHandler);
      eventManager.addListener(fermatEventListener);
      listenersAdded.add(fermatEventListener);

      fermatEventListener =
          eventManager.getNewListener(EventType.CRYPTO_BROKER_ACTOR_CONNECTION_NEW_CONNECTION);
      fermatEventHandler = new CryptoBrokerNewConnectionEventHandler(handlerAction, this);
      fermatEventListener.setEventHandler(fermatEventHandler);
      eventManager.addListener(fermatEventListener);
      listenersAdded.add(fermatEventListener);

      agente =
          new CryptoBrokerExtraDataUpdateAgent(
              cryptoBrokerANSManager,
              cryptoCustomerActorDao,
              errorManager,
              getPluginVersionReference());
      agente.start();
      this.serviceStatus = ServiceStatus.STARTED;

    } catch (CantStartAgentException | CantInitializeCryptoCustomerActorDatabaseException e) {
      errorManager.reportUnexpectedPluginException(
          this.getPluginVersionReference(),
          UnexpectedPluginExceptionSeverity.DISABLES_THIS_PLUGIN,
          e);
      throw new CantStartPluginException(e, this.getPluginVersionReference());
    }
  }