baseheader.java

pos机交易实现源代码 含金融卡交易8583协议实现 开发环境：linux 典型应用：嵌入系统开发 仅供参考

/*
 * Copyright (c) 2001 jPOS.org.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *    "This product includes software developed by the jPOS project 
 *    (http://www.jpos.org/)". Alternately, this acknowledgment may 
 *    appear in the software itself, if and wherever such third-party 
 *    acknowledgments normally appear.
 *
 * 4. The names "jPOS" and "jPOS.org" must not be used to endorse 
 *    or promote products derived from this software without prior 
 *    written permission. For written permission, please contact 
 *    [e-mail].
 *
 * 5. Products derived from this software may not be called "jPOS",
 *    nor may "jPOS" appear in their name, without prior written
 *    permission of the jPOS project.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  
 * IN NO EVENT SHALL THE JPOS PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR 
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the jPOS Project.  For more
 * information please see <http://www.jpos.org/>.
 */


package org.jpos.iso.header;

import org.jpos.iso.ISOHeader;

/**
 * @author <a href="mailto:[e-mail]">Eoin Flood</a>
 * @author <a href="mailto:[e-mail]">Alejandro P. Revilla</a>
 */
public class BaseHeader implements ISOHeader {
    protected byte[] header;

    /**
     * Default Constructor.
     * Used by Class.forName.newInstance(...);
     */
    public BaseHeader()
    {
    	header = null;
    }

    /**
     * Create a new Header from a byte array.
     */
    public BaseHeader (byte[] header) {
	unpack(header);
    }

    /** 
     * Clone this Header.
     */
    public Object clone() 
    {
    	try {
	    BaseHeader h = (BaseHeader) super.clone();
	    if (this.header != null)
		h.header = (byte[]) this.header.clone();
	    return h;
	} catch (CloneNotSupportedException e) {
	    throw new InternalError();
	}
    }

    public byte[] pack() {
	return header;
    }

    public int unpack (byte[] header) {
	this.header = header;
	return header != null ? header.length : 0;
    }

    public int getLength () {
    	return header != null ? header.length : 0;
    }

    public void setDestination(String dst) {}
    public void setSource(String src) {}
    public String getDestination() { return null; }
    public String getSource() { return null; }
    public void swapDirection() {}
}