davstoremanager.java

这是linux下ssl vpn的实现程序

/*
 *  SSL-Explorer
 *
 *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
 *
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
			
package com.sslexplorer.vfs.webdav;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import com.sslexplorer.vfs.store.apps.ApplicationStore;
import com.sslexplorer.vfs.store.cifs.CIFSStore;
import com.sslexplorer.vfs.store.file.FileStore;
import com.sslexplorer.vfs.store.ftp.FTPStore;

/**
 * @author Brett Smith <[e-mail]>
 */
public class DAVStoreManager {
    
    private List storeClasses;
    private static DAVStoreManager instance;

    /**
     * 
     */
    private DAVStoreManager() {
        storeClasses = new ArrayList();
    }
    
    public static DAVStoreManager getInstance() {
        if(instance == null) {
            instance = new DAVStoreManager();
            instance.registerStore(FileStore.class);
            instance.registerStore(FTPStore.class);
            instance.registerStore(CIFSStore.class);
            instance.registerStore(ApplicationStore.class);
        }
        return instance;
    }
    
    public void registerStore(Class storeClass) {
        storeClasses.add(storeClass);
    } 
    
    public Map createStores(DAVRepository repository) throws InstantiationException, IllegalAccessException {
        Map stores = new TreeMap();
        
        Iterator i = storeClasses.iterator();
        
        while (i.hasNext()){
        	Class storeClass = (Class)i.next() ; 
            DAVStore store = (DAVStore)(storeClass).newInstance();
            store.init(repository);
            stores.put(store.getName(), store);
        }
        
        return stores;
    }

    public void deregisterStore(Class clazz) {
        storeClasses.remove(clazz);        
    }

}