isochannel.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) 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 
 *    [e-mail].
 *
 * 5. Products derived from this software may not be called "jPOS",
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 * 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.  
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 * ====================================================================
 *
 * 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;

import java.io.*;
import java.util.*;
import java.net.ConnectException;
import java.net.ServerSocket;
import java.net.Socket;
import org.jpos.util.Logger;
import org.jpos.util.LogEvent;
import org.jpos.util.LogSource;
import org.jpos.util.NameRegistrar;
import org.jpos.iso.ISOFilter.VetoException;

/**
 * allows the transmision and reception of ISO 8583 Messages
 * <p>
 * @author <a href="mailto:[e-mail]">Alejandro P. Revilla</a>
 * @version $Revision: 1.42 $ $Date: 2001/10/17 17:06:20 $
 */

public interface ISOChannel extends ISOSource {
    public static final int CONNECT      = 0;
    public static final int TX           = 1;
    public static final int RX           = 2;
    public static final int SIZEOF_CNT   = 3;

    /**
     * Associate a packager with this channel
     * @param p     an ISOPackager
     */
    public void setPackager(ISOPackager p);

    /**
     * Connects ISOChannel 
     * @exception IOException
     */
    public void connect () throws IOException;

    /**
     * disconnects ISOChannel
     * @exception IOException
     */
    public void disconnect () throws IOException;

    /**
     * Reconnect channel
     * @exception IOException
     */
    public void reconnect() throws IOException;

    /**
     * @return true if Channel is connected and usable
     */
    public boolean isConnected();

    /**
     * Receives an ISOMsg
     * @return the Message received
     * @exception IOException
     * @exception ISOException
     */
    public ISOMsg receive() throws IOException, ISOException;

    /**
     * sends an ISOMsg over the TCP/IP session
     * @param m the Message to be sent
     * @exception IOException
     * @exception ISOException
     */
    public void send (ISOMsg m) throws IOException, ISOException;

    /**
     * @param b - usable state
     */
    public void setUsable(boolean b);

    /**
     * associates this ISOChannel with a name on NameRegistrar
     * @param name name to register
     * @see NameRegistrar
     */
    public void setName (String name);

   /**
    * @return this ISOChannel's name ("" if no name was set)
    */
    public String getName();

   /**
    * @return current packager
    */
    public ISOPackager getPackager();
}