connectionhandler.java

JAVA FTP客户端经典

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * 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 General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package net.sf.jftp.net;

import net.sf.jftp.util.*;
import java.util.*;

/** may be extended to support multiple connections in future */
public class ConnectionHandler
{
    private FtpConnection connection = null;

    private Hashtable connections = new Hashtable();

    public void addConnection(String file, Transfer t)
    {
    	connections.put(file, t);
    }
    
    public void removeConnection(String file)
    {
    	connections.remove(file);
    }
    
    public Hashtable getConnections()
    {
    	return connections;
    }
    
    public  int getConnectionSize()
    {
    	int size = 0;
	Enumeration e = connections.elements();
	
	while(e.hasMoreElements())
	{
		Transfer t = (Transfer) e.nextElement();
		if(t.hasStarted()) size++;
	}
	
	
   	return size;
    }

}