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jPOS is an ISO-8583 based financial transaction library/framework that can be customized and extended in order to implement financial interchanges.

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/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2013 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */

package org.jpos.iso;

import org.jpos.iso.ISOFilter.VetoException;

import java.io.IOException;

/**
 * Source for an ISORequest (where to send a reply)
 * @author Alejandro P. Revilla
 * @version $Id$
 * @see ISORequestListener
 */
public interface ISOSource {
    /**
     * sends (or hands back) an ISOMsg
     * @param m the Message to be sent
     * @exception IOException
     * @exception ISOException
     * @exception ISOFilter.VetoException;
     */
    public void send (ISOMsg m) 
        throws IOException, ISOException, VetoException;

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