cmdaccept.java

来自「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」· Java 代码 · 共 73 行

/**
 * 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 freecs.interfaces.ICommand;
import freecs.content.MessageState;
import freecs.core.Group;
import freecs.core.User;

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

	private CmdAccept () { }
	private CmdAccept (CommandSet cs) {
		this.cs=cs;
	}
	
	public static ICommand getInstance (CommandSet cs) {
		if (selve == null) {
			selve = new CmdAccept (cs);
		}
		return selve;
	}
	
	public boolean execute (MessageState msgState, String param) {
		if (cs.isPunished(msgState)) return false;
		  Group joining = msgState.sender.invitedTo ();
		  if (joining == null) return false;
		  User inviter = msgState.sender.invitedBy ();
		  if (!joining.usrIsPresent (inviter)) return false;
		  Group leaving = msgState.sender.getGroup ();
		  if (joining.equals (leaving)) {
			msgState.sender.unsetInvitedTo ();
			return false;
		  }
		  msgState.target = joining.getName ();
		  msgState.source = leaving.getName ();
		  msgState.msgTemplate = "message.a";
		  msgState.sender.invitedBy ().sendMessage (msgState.mp);
		  msgState.msgTemplate = "message.user.leaving.group";
		  leaving.sendModeraedMessage (msgState.mp);
		  msgState.msgTemplate = "message.user.join.group";
		  joining.sendModeraedMessage (msgState.mp);
		  msgState.sender.unsetInvitedTo ();
		  joining.addUser (msgState.sender, inviter);
		return true;
	}
}