package lava.net.common;

import java.util.Vector;
import lava.net.common.VariableModifier;

/**
 *
 **/
public class Packet 
{
   /**
    *
    **/
   private Vector header = null;

   /**
    *
    **/
   private String body = null;

   /**
    *
    **/
   public Packet()
   {
      header = new Vector();
   }

   /**
    *
    **/
   public Packet(Vector header, String body)
   {
      this.header = header == null ? new Vector() : header;
      this.body = body;
   }

   /**
    *
    **/
   protected void addVariableModifier(VariableModifier modifier)
   {
      if(modifier == null)
         return;
      header.addElement(modifier);
   }

   /**
    *
    **/
   public void setVariable(String name, Value value)
   {
      addVariableModifier(new VariableModifier(//
      VariableModifier.GLYPH_SET,name,value));
   }

   /**
    *
    **/
   public Vector getHeader()
   {
      return header;
   }

   /**
    *
    **/
   public String getStringBody()
   {
      return body;
   }

   /**
    *
    **/
   public byte[] getBytesBody()
   {
      return body.getBytes();
   }

   /**
    *
    **/
   public char[] getCharsBody()
   {
      return body.toCharArray();
   }

   /**
    *
    **/
   public void setBody(String body)
   {
      if(body != null && body.equals(""))
         this.body = null;
      else
         this.body = body;
   }

   /**
    *
    **/
   public void setBody(byte[] body)
   {
      if(body != null && body.length == 0)
         this.body = null;
      else
         this.body = new String(body);
   }

   /**
    *
    **/
   public void setBody(char[] body)
   {
      if(body != null && body.length == 0)
         this.body = null;
      else
         this.body = new String(body);
   }

   /**
    *
    **/
   public boolean isEmpty()
   {
      return (header == null || header.size() <= 0) && //
      (body == null || body.length() <= 0);
   }

}