@Override
  public String getConnectionsString() {
    String result = "";
    for (Iterator<ISocketServerConnection> it = getConnections().iterator(); it.hasNext();) {
      ISocketServerConnection ssc = it.next();
      if (result.isEmpty()) {
        result = new Long(ssc.getIdConnection()).toString();
      }
      else {
        result = result + ", " + ssc.getIdConnection();
      }
    }
    return result;
  }