RecvMsg80.java :  » Client » android-gadu » pl » szpadel » android » gadu » packets » Android Open Source

package pl.szpadel.android.gadu.packets;

import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
import java.nio.channels.ReadableByteChannel;

/// Packet with incoming message
public class RecvMsg80 extends ReceivedPacket {
  
  public static final String TAG = "AndroidGaduService";
  
  public int sender;
  public int seq;
  public int time;
  public int cls;
  //public int offset_plain;
  //public int offsert_attributes;
  public String htmlMessage;
  public String plainMessage;
  

  public RecvMsg80(Header hdr, InputStream stream) throws IOException {
    super(hdr, stream);
  }

  protected RecvMsg80(Header hdr, ReadableByteChannel channel) throws IOException {
    super(hdr, channel);
  }

  @Override
  protected void readFromBuffer(ByteBuffer buffer) {
    sender = buffer.getInt();
    seq = buffer.getInt();
    time = buffer.getInt();
    cls = buffer.getInt();
    
    final int BASE_OFFSET = 24;
    
    int offset_plain = buffer.getInt();
    int offset_attr = buffer.getInt();
    
    int htmlLen = offset_plain - BASE_OFFSET;
    int plainLen = offset_attr - offset_plain;
    
    //Log.d(TAG, "offset plain: " + offset_plain + ", ofsert_attr: " + offset_attr + " bytes remaining:" + buffer.remaining());
    try {
      if (htmlLen > 0) {
        byte htmlMsg[] = new byte[htmlLen-1];
        buffer.get(htmlMsg);
        buffer.get(); // get null terminator
        htmlMessage = new String(htmlMsg, "UTF-8");
      };
      if (plainLen > 0) {
        byte plainMsg[] = new byte[plainLen-1];
        buffer.get(plainMsg);
        buffer.get(); // get null terminator
        plainMessage = new String(plainMsg, "CP1250");
      }
    } catch (UnsupportedEncodingException e) {
      htmlMessage = new String();
      plainMessage = new String();
    }
  }
  
  /// to string
  public String toString() {
    return "RecvMsg80 [ uin=" + sender + "\n    html(" + htmlMessage + "),\n    plain(" + plainMessage + ") ]";
  }

}