/*
 * File    : ExtendedByteArrayInputStream.java
 * Created : 21-sep-2001 10:14
 * By      : fbusquets
 *
 * JClic - Authoring and playing system for educational activities
 *
 * Copyright (C) 2000 - 2005 Francesc Busquets & Departament
 * d'Educacio de la Generalitat de Catalunya
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details (see the LICENSE file).
 */

package edu.xtec.util;

import java.io.ByteArrayInputStream;

/**
 * This class extends {@link java.io.ByteArrayInputStream} in two ways: it adds a "name"
 * member, and gives read-only acces to its protected members <CODE>pos</CODE>,
 * <CODE>mark</CODE> and <CODE>count</CODE>.
 * @author Francesc Busquets (fbusquets@xtec.net)
 * @version 1.0
 */
public class ExtendedByteArrayInputStream extends ByteArrayInputStream {
    
    protected String m_name;
    
    /** Creates new ExtendedByteArrayInputStream */
    public ExtendedByteArrayInputStream(byte[] buffer, String name){
        super(buffer);
        m_name=name;
    }
    
    public ExtendedByteArrayInputStream(byte[] buffer, int offset, int length, String name){
        super(buffer, offset, length);
        m_name=name;
    }
    
    public ExtendedByteArrayInputStream duplicate(){
        return new ExtendedByteArrayInputStream(buf, m_name);
    }
    
    public String getName(){
        return m_name;
    }
    
    public int getPos(){
        return pos;
    }
    
    public int getMark(){
        return mark;
    }
    
    public int getCount(){
        return count;
    }
    
    public boolean eosReached(){
        return pos>=count;
    }
    
    public long seek(long param){
        pos=0;
        return skip(param);
    }
    
    public byte[] getBuffer(){
        return buf;
    }
    
    public boolean markSupported(){
        return true;
    }
    
}