usermanager.java

用java写的ftp服务器程序

// $Id: UserManager.java 306736 2005-09-24 10:53:36 +0530 (Sat, 24 Sep 2005) rana_b $
/*
 * Copyright 2004 The Apache Software Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.ftpserver.ftplet;

import java.util.Collection;

/**
 * User manager interface.
 * 
 * @author <a href="mailto:[e-mail]">Rana Bhattacharyya</a>
 */
public 
interface UserManager extends Component {

    /**
     * Get user by name.
     */
    User getUserByName(String login) throws FtpException;
    
    /**
     * Get all user names in the system.
     */
    Collection getAllUserNames() throws FtpException;
    
    /**
     * Delete the user from the system.
     * 
     * @throws UnsupportedOperationException
     *             if UserManager in read-only mode
     */
    void delete(String login) throws FtpException;
    
    /**
     * Save user. If a new user, create it else update the existing user.
     * 
     * @throws UnsupportedOperationException
     *             if UserManager in read-only mode
     */
    void save(User user) throws FtpException;
    
    /**
     * User existance check.
     */
    boolean doesExist(String login) throws FtpException;
    
    /**
     * Authenticate user
     */
    boolean authenticate(String login, String password) throws FtpException;
    
    /**
     * Get admin user name
     */
    String getAdminName() throws FtpException;
    
    /**
     * @return true if user with this login is administrator
     */
    boolean isAdmin(String login) throws FtpException;
}