cmdlistonlinefriends.java

JAVA平台下优秀的CHART开源代码,可以实现类似EXCEL中的二维或三维的饼图/椎图功能.

/**
 * Copyright (C) 2003  Manfred Andres
 * 
 * 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.
 * 
 * Created on 28.09.2003
 */

package freecs.commands;
import java.util.Enumeration;

import freecs.interfaces.ICommand;
import freecs.core.Group;
import freecs.core.UserManager;
import freecs.content.MessageState;

/**
 * @author Manfred Andres
 *
 * freecs.commands
 */
public class CmdListOnlineFriends implements ICommand {
	public String cmd= "/f";
	private static CmdListOnlineFriends selve=null;
	private CommandSet cs;

	private CmdListOnlineFriends () { }
	private CmdListOnlineFriends (CommandSet cs) {
		this.cs=cs;
	}
	
	public static ICommand getInstance (CommandSet cs) {
		if (selve == null) {
			selve = new CmdListOnlineFriends (cs);
		}
		return selve;
	}
	
	public boolean execute (MessageState msgState, String param) {
		if (msgState.sender.numberOfFriends () < 1) {
			msgState.msgTemplate = "error.fl.nofriends";
			msgState.sender.sendMessage (msgState.mp);
			return false;
		}
		msgState.msgTemplate = "message.f";
		int i = 0;
		msgState.useRenderCache = false;
		for (Enumeration e = msgState.sender.friends (); e.hasMoreElements (); ) {
		   String uname = (String) e.nextElement ();
		   msgState.usercontext = UserManager.mgr.getUserByName (uname);
		   if (msgState.usercontext == null) continue;
		   Group fg = msgState.usercontext.getGroup ();
		   if (fg == null) continue;
		   i++;
		   msgState.target = fg.getName ();
		   msgState.source = uname;
		   msgState.sender.sendMessage (msgState.mp);
		}
		if (i == 0)
		   msgState.msgTemplate = "error.f.noFriendOnline";
		else {
		   msgState.target = String.valueOf (i);
		   msgState.msgTemplate = "message.f.count";
		}
		msgState.sender.sendMessage (msgState.mp);
		return true;
	}
}