@Override
  public int hashCodeForPacket(Packet packet) {
    if (packet.getStanzaTo() != null) {
      return packet.getStanzaTo().hashCode();
    }
    if (packet.getTo() != null) {
      return packet.getTo().hashCode();
    }

    return super.hashCodeForPacket(packet);
  }
  /**
   * Method description
   *
   * @param ios
   * @param p
   * @return a value of <code>boolean</code>
   */
  public boolean writePacketToSocket(IO ios, Packet p) {
    if (ios != null) {
      if (log.isLoggable(Level.FINER) && !log.isLoggable(Level.FINEST)) {
        log.log(
            Level.FINER,
            "{0}, Processing packet: {1}, type: {2}",
            new Object[] {ios, p.getElemName(), p.getType()});
      }
      if (log.isLoggable(Level.FINEST)) {
        log.log(Level.FINEST, "{0}, Writing packet: {1}", new Object[] {ios, p});
      }

      // synchronized (ios) {
      ios.addPacketToSend(p);
      if (ios.writeInProgress.tryLock()) {
        try {
          ios.processWaitingPackets();
          SocketThread.addSocketService(ios);

          return true;
        } catch (Exception e) {
          log.log(Level.WARNING, ios + "Exception during writing packets: ", e);
          try {
            ios.stop();
          } catch (Exception e1) {
            log.log(Level.WARNING, ios + "Exception stopping XMPPIOService: ", e1);
          } // end of try-catch
        } finally {
          ios.writeInProgress.unlock();
        }
      }

    } else {
      if (log.isLoggable(Level.FINE)) {
        log.log(
            Level.FINE,
            "Can''t find service for packet: <{0}> {1}, service id: {2}",
            new Object[] {p.getElemName(), p.getTo(), getServiceId(p)});
      }
    } // end of if (ios != null) else

    return false;
  }
 /**
  * Method description
  *
  * @param packet
  * @return a value of <code>String</code>
  */
 protected String getServiceId(Packet packet) {
   return getServiceId(packet.getTo());
 }