bytearrayreader.java

Java Communicating Agents是一个用于开发网络反应式信息agent的框架

/*
 * $Source: /home/data/cvsroot/src/jacomma/util/ByteArrayReader.java,v $
 * $Revision: 1.3 $
 * $Date: 2000/10/28 20:09:08 $
 *
 * This file is part of the jacomma framework
 * Copyright (c) 2000 	Dimitrios Vyzovitis
 *			mailto:[e-mail]
 *			
 *
 *			
 *			
 *			
 *
 *	This library is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU Library General Public License as published by
 *	the Free Software Foundation; either version 2 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 Library General Public License for more details.
 *
 *	You should have received a copy of the GNU Library 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 jacomma.util;

/**
 * Auxiliary Reader
 **/
public final class ByteArrayReader {

	private java.io.InputStream stream_;
	private byte[] array_;
	private int off_;

	public ByteArrayReader( int length, java.io.InputStream stream ){
		array_ = new byte[length];
		stream_ = stream;
	}

	public boolean hasNext() {
		return off_ < array_.length;
	}
	
	public void readNext() throws java.io.IOException {
		int r;
		if ( ( r = stream_.read( array_, off_, array_.length - off_ ) ) != -1 )
			off_ +=r;
		else
			throw new java.io.IOException( "End of Stream." );

	}
	
	public byte[] toByteArray() {
		return array_;
	}
	
}