safchannel.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",
 *    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.io.Serializable;
import java.io.OutputStream;
import java.io.ObjectOutputStream;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.Date;
import java.util.Vector;
import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedList;
import org.jpos.iso.ISOMsg;
import org.jpos.iso.ISOField;
import org.jpos.iso.ISODate;
import org.jpos.iso.ISOUtil;
import org.jpos.iso.ISORequest;
import org.jpos.iso.ISOChannel;
import org.jpos.iso.ISOPackager;
import org.jpos.iso.ISOException;
import org.jpos.iso.FilteredChannel;
import org.jpos.iso.ISOMUX;
import org.jpos.core.Sequencer;
import org.jpos.core.VolatileSequencer;
import org.jpos.util.NameRegistrar;
import org.jpos.util.BlockingQueue;
import org.jpos.util.Logger;
import org.jpos.util.LogEvent;
import org.jpos.util.LogSource;
import org.jpos.util.Loggeable;
import org.jpos.core.Configuration;
import org.jpos.core.ConfigurationException;
import org.jpos.core.ReConfigurable;
import org.jpos.iso.ISOFilter;
import org.jpos.iso.ISOFilter.VetoException;
import com.sun.jini.reliableLog.ReliableLog;
import com.sun.jini.reliableLog.LogException;
import com.sun.jini.reliableLog.LogHandler;

/**
 * Store & Forward channel
 * Incoming filters are processed at 'store' time while Outgoing
 * filters are processed at 'forward' time.
 *
 * @author <a href="mailto:[e-mail]">Alejandro P. Revilla</a>
 * @version $Revision: 1.6 $ $Date: 2002/01/26 20:41:48 $
 * @since 1.3.9
 * @see FilteredChannel
 */
public class SAFChannel extends LogHandler
    implements ISOChannel, LogSource, ReConfigurable, 
               Runnable, SAFChannelMBean, FilteredChannel
{
    boolean usable = false;
    private int[] cnt;
    String name;
    BlockingQueue queue;
    Logger logger;
    String realm;
    Configuration cfg;
    ReliableLog log;
    ISOMUX mux;
    boolean debug = false;
    Vector outgoingFilters, incomingFilters;

    public SAFChannel () {
	super();
        cnt = new int[SIZEOF_CNT];
	queue = new BlockingQueue();
	outgoingFilters = new Vector();
	incomingFilters = new Vector();
        new Thread (this).start ();
    }

    public void setPackager(ISOPackager packager) { }

    public void connect () { }

    public void disconnect () { }

    public void reconnect ()  { }

    public boolean isConnected() {
	return usable;
    }

    public synchronized void send (ISOMsg m)
	throws IOException,ISOException, VetoException
    {
	if (!isConnected())
	    throw new ISOException ("unconnected ISOChannel retry later");
        m.setDirection(ISOMsg.INCOMING);
	LogEvent evt = new LogEvent (this, "saf-send", m);
        m = applyFilters (outgoingFilters, m, evt);
        m.setDirection(ISOMsg.INCOMING);
        logUpdate (new LogEntry (LogEntry.QUEUE, m));
        queue.enqueue (m);
	cnt[TX]++;
	Logger.log (evt);
    }

    /* ---------------------------------------------------------------
    
    Future expansion, we may want to store messages in an external
    file, should our in-memory queue grows beyond a high water mark 

    private void addMessage (String f, ISOMsg m) throws IOException {
        FileOutputStream fos = new FileOutputStream (f, true);
        ObjectOutputStream out = new ObjectOutputStream (fos);
        out.writeObject (m);
        out.flush();
        fos.getFD().sync();
        out.close();
    }

    ---------------------------------------------------------------- */

    public ISOMsg receive() throws ISOException {
        throw new ISOException ("can not receive from SAFChannel");
    }

    public void setUsable (boolean usable) {
	this.usable = usable;
    }

    public void setName (String name) {
	this.name = name;
	NameRegistrar.register ("channel."+name, this);
    }

    public String getName() {
	return name;
    }

    public ISOPackager getPackager() {
	return null;
    }
    public void resetCounters() {
        cnt = new int[SIZEOF_CNT];
    }
    public void setLogger (Logger logger, String realm) {
	this.logger = logger;
	this.realm  = realm;
    }
    public String getRealm () {
	return realm;
    }
    public Logger getLogger() {
	return logger;
    }
    /**
     * @param cfg 
     * <ul>
     *  <li>logdir - reliable log directory
     *  <li>flag-retransmissions - ditto (i.e. sends 0221 instead of 0220)
     *  <li>destination-mux - ditto
     *  <li>timeout - time in millis to wait for a response
     *  <li>delay   - inter-message delay
     *  <li>debug   - true/false
     * </ul>
     */
    public void setConfiguration (Configuration cfg) 
        throws ConfigurationException
    {
        debug = cfg.getBoolean ("debug") && (getLogger() != null);
        if (this.cfg == null) {
	    try {
                ReliableLog log = 
                    new ReliableLog (cfg.get("logdir",null), this);
                try {
                    log.recover();
                } catch (LogException le) {
                    Logger.log (new LogEvent (this, "recover", le));
                }
                log.snapshot();
                setReliableLog (log);
                if (debug)
                    dumpList ();
                setUsable (true);
	    } catch (IOException e) {
	        throw new ConfigurationException (e);
	    } 
        }
        this.cfg = cfg;
    }