package org.rpi.songcast;
   
   import org.apache.log4j.Logger;
   
   //Offset    Bytes                   Desc
   //0         4                       "Ohz "
   //4         1                       OhzHeader Major Version 1
   //5         1                       Msg Type (0 = Query, 1 = Uri)
   //6         2                       Total Bytes (Absolutely all bytes in the entire frame)
  //8         4                       Length of Zone n
  //12        n                       Zone
  
  public class OHZJoin extends SongcastMessage {
  
      private Logger log = Logger.getLogger(this.getClass());
  
      private String header = "4f687a200100";
  
      public  OHZJoin(String zone)
      {
          String zoneHex = stringToHex(zone);
          log.debug("Zone in HEX: " + zoneHex);
          String lengthPacket = "0000";
          int zl = zoneHex.length();
          String lengthZone = "00000000";
          int length = header.length() + lengthPacket.length() + lengthZone.length() + zoneHex.length();
          length = length/2;
          lengthPacket = DecToHex(length, 4);
          String sZL= DecToHex(zl/2, 8);
          data = hexStringToByteArray(header+ lengthPacket +  sZL + zoneHex);
      }
  
  }