ServerMetaReply__21_3.java :  » App » android-chatty » ru » caffeineim » protocols » icq » packet » received » meta » Android Open Source

/**
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package ru.caffeineim.protocols.icq.packet.received.meta;

import java.io.DataInputStream;
import java.io.IOException;

import ru.caffeineim.protocols.icq.RawData;
import ru.caffeineim.protocols.icq.core.OscarConnection;
import ru.caffeineim.protocols.icq.exceptions.BadPacketException;
import ru.caffeineim.protocols.icq.exceptions.ConvertStringException;
import ru.caffeineim.protocols.icq.metainfo.IMetaInfoParser;
import ru.caffeineim.protocols.icq.metainfo.MetaInfoParserFactory;
import ru.caffeineim.protocols.icq.packet.received.ReceivedPacket;
import ru.caffeineim.protocols.icq.setting.enumerations.MetaTypeEnum;

/**
 * <p>Created by
 *   @author Fabrice Michellonet
 *   @author Samolisov Pavel 
 */
public class ServerMetaReply__21_3 extends ReceivedPacket {
  
  private int metaType = 0;
  private int metaSubType = 0;  
  
  private IMetaInfoParser metaInfoParser = null; 

  public ServerMetaReply__21_3(DataInputStream strm) throws ConvertStringException,
      IOException, BadPacketException {
    super(strm, true);

    int position = 0;
    byte[] data = getSnac().getDataFieldByteArray();

    // Skipping 4 byte of TLV(1) + length field + my uin
    position += 10;

    // Retreiving meta-type command
    RawData rdMetaType = new RawData(data, position, RawData.WORD_LENGTH);
    rdMetaType.invertIndianness();
    metaType = rdMetaType.getValue();
    position += 2;

    // Skip the sequence
    //RawData sequence = new RawData(data, position, RawData.WORD_LENGTH);
    position += 2;
    
    // Retreiving the meta-subtype command
    if (metaType == MetaTypeEnum.SERVER_ADVANCED_META) {
      RawData metaSubTypeRD = new RawData(data, position, RawData.WORD_LENGTH);
      metaSubTypeRD.invertIndianness();
      metaSubType = metaSubTypeRD.getValue();      
    }
    
    // Build parser
    metaInfoParser = MetaInfoParserFactory.buildMetaInfoParser(metaType, metaSubType); 
    
    // Parse metainfo data
    if (metaInfoParser != null)
      metaInfoParser.parse(data, position);
  }

  public void execute(OscarConnection connection) {
    if (metaInfoParser != null)
      metaInfoParser.execute(connection);
  }

  public void notifyEvent(OscarConnection connection) {
    if (metaInfoParser != null)
      metaInfoParser.notifyEvent(connection);
  }  
}