/* * Copyright (c) 2000 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  *    license@jpos.org. * * 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.channel;import java.io.IOException;import java.net.ServerSocket;import org.jpos.iso.BaseChannel;import org.jpos.iso.ISOException;import org.jpos.iso.ISOMsg;import org.jpos.iso.ISOPackager;import org.jpos.iso.ISOUtil;import org.jpos.util.LogEvent;import org.jpos.util.Logger;/** * Talks with TCP based NCCs * Sends [LEN][TPDU][ISOMSG] * (len=2 bytes HEX) * * @author Mladen Mrkic <mmrkic@arius.co.yu> * @version $Revision: 1.1 $ $Date: 2005/08/06 13:27:45 $ * @see ISOMsg * @see ISOException * @see ISOChannel */public class HEXChannel extends BaseChannel {    /**     * Public constructor      */    public HEXChannel () {        super();    }    /**     * Construct client ISOChannel     * @param host  server TCP Address     * @param port  server port number     * @param p     an ISOPackager     * @param TPDU  an optional raw header (i.e. TPDU)     * @see ISOPackager     */    public HEXChannel (String host, int port, ISOPackager p, byte[] TPDU) {        super(host, port, p);        this.header = TPDU;    }    /**     * Construct server ISOChannel     * @param p     an ISOPackager     * @param TPDU  an optional raw header (i.e. TPDU)     * @exception IOException     * @see ISOPackager     */    public HEXChannel (ISOPackager p, byte[] TPDU) throws IOException {        super(p);        this.header = TPDU;    }    /**     * constructs server ISOChannel associated with a Server Socket     * @param p     an ISOPackager     * @param TPDU  an optional raw header (i.e. TPDU)     * @param serverSocket where to accept a connection     * @exception IOException     * @see ISOPackager     */    public HEXChannel (ISOPackager p, byte[] TPDU, ServerSocket serverSocket)         throws IOException    {        super(p, serverSocket);        this.header = TPDU;    }    protected void sendMessageLength(int len) throws IOException {        try {            serverOut.write (                                                                                                                         ISOUtil.str2bcd (                                                                                                                         ISOUtil.zeropad (Integer.toString (len,16), 4), true                )            );        }         catch (ISOException e) {            Logger.log (new LogEvent (this, "send-message-length", e));        }    }    protected int getMessageLength() throws IOException, ISOException {        byte[] b = new byte[2];        serverIn.readFully(b,0,2);        return Integer.parseInt (            ISOUtil.bcd2str (b, 0, 4, true),16        );    }    protected void sendMessageHeader(ISOMsg m, int len) throws IOException {         byte[] h = m.getHeader();        if (h != null) {            if (h.length == 5) {                // swap src/dest address                byte[] tmp = new byte[2];                System.arraycopy (h,   1, tmp, 0, 2);                System.arraycopy (h,   3,   h, 1, 2);                System.arraycopy (tmp, 0,   h, 3, 2);            }        }        else            h = header ;        if (h != null)             serverOut.write(h);    }    /**     * New QSP compatible signature (see QSP's ConfigChannel)     * @param header String as seen by QSP     */    public void setHeader (String header) {        super.setHeader (ISOUtil.str2bcd(header, false));    }}