adminremote.java

用Java写的面相对象的数据库管理系统

// You can redistribute this software and/or modify it under the terms of
// the Ozone Library License version 1 published by ozone-db.org.
//
// The original code and portions created by SMB are
// Copyright (C) 1997-2000 by SMB GmbH. All rights reserved.
//
// $Id: AdminRemote.java,v 1.16 2000/10/28 16:55:20 daniela Exp $

package org.ozoneDB.tools;

import org.ozoneDB.DxLib.*;
import org.ozoneDB.DxLib.net.DxClient;
import org.ozoneDB.core.*;
import org.ozoneDB.util.*;
import java.io.IOException;


/**
 * Remote interface of all admin functions.
 * 
 * 
 * @author <a href="http://www.softwarebuero.de/">SMB</a>
 * @version $Revision: 1.16 $Date: 2000/10/28 16:55:20 $
 */
class AdminRemote extends DxClient {
    
    
    public AdminRemote( String _host, int _port ) throws IOException{
        super( _host, _port );
    }
    
    
    public void onConnect() throws IOException {
        send( "Command" );
    } 
    
    
    public void onDeconnect() throws IOException {
        send( new AdminCommand( AdminCommand.CLOSE ) );
    } 
    
    
    private Object send2( Object com, boolean answer ) throws Exception {
        send( com );
        if (answer) {
            Object ret = receive();
            if (ret instanceof Exception) {
                throw (Exception)ret;
            } else {
                return ret;
            } 
        } 
        return null;
    } 
    
    
    public void close() throws IOException {
        try {
            send2( new AdminCommand( AdminCommand.CLOSE ), false );
        } catch (IOException e) {
            throw e;
        } catch (Exception e) {
        } 
        super.close();
    } 
    
    
    public void newGroup( String groupName, Integer id ) throws Exception {
        send2( new AdminCommand( AdminCommand.NG, groupName, id ), true );
    } 
    
    
    public void newUser( String userName, Integer id ) throws Exception {
        send2( new AdminCommand( AdminCommand.NU, userName, id ), true );
    } 
    
    
    public void addUserToGroup( String userName, String groupName ) throws Exception {
        send2( new AdminCommand( AdminCommand.U2G, userName, groupName ), true );
    } 
    
    
    public void removeUserFromGroup( String userName, String groupName ) throws Exception {
        send2( new AdminCommand( AdminCommand.RUG, userName, groupName ), true );
    } 
    
    
    public DxCollection allGroups() throws Exception {
        return (DxCollection)send2( new AdminCommand( AdminCommand.AG ), true );
    } 
    
    
    public DxCollection allUsers() throws Exception {
        return (DxCollection)send2( new AdminCommand( AdminCommand.AU ), true );
    } 
    
    
    public Group groupForName( String groupName ) throws Exception {
        return (Group)send2( new AdminCommand( AdminCommand.GfN, groupName ), true );
    } 
    
    
    public User userForName( String userName ) throws Exception {
        return (User)send2( new AdminCommand( AdminCommand.UfN, userName ), true );
    } 
    
    
    public void removeGroup( String groupName ) throws Exception {
        send2( new AdminCommand( AdminCommand.RG, groupName ), true );
    } 
    
    
    public void removeUser( String userName ) throws Exception {
        send2( new AdminCommand( AdminCommand.RU, userName ), true );
    } 
    
    
    public void provideMessage( AdminMessage msg ) throws Exception {
        System.out.println( "ozone message from " + msg.sender + ": " + msg.msg );
    } 
    
    
    public void shutdown() throws Exception {
        send2( new AdminCommand( AdminCommand.SHUTDOWN ), false );
    } 
    
    
    public void setCSSizes( Integer csSize, Integer clSize ) throws Exception {
        send2( new AdminCommand( AdminCommand.CS, csSize, clSize ), false );
    } 
}