systemmessageformatter.java

用java实现的

/*
* LumaQQ - Java QQ Client
*
* Copyright (C) 2004 luma <[e-mail]>
*
* 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
*/
package edu.tsinghua.lumaqq.widgets;

import java.text.DateFormat;
import java.util.Date;

import edu.tsinghua.lumaqq.MessageEntry;

/**
 * <pre>
 * 系统消息的格式化器
 * </pre>
 * 
 * @author 马若劼
 */
public class SystemMessageFormatter implements IRecordFormatter {
	private Date date;
	private DateFormat shortDateFormat;
	
	/**
	 * 构造函数
	 */
	public SystemMessageFormatter() {
		date = new Date();
		shortDateFormat = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);		
	}
	
	/* (non-Javadoc)
	 * @see edu.tsinghua.lumaqq.IRecordFormatter#format(edu.tsinghua.lumaqq.MessageEntry)
	 */
	public String[] format(MessageEntry me) {
		String[] ret = new String[3];
		String msg = me.getMessage();
		int delimit = msg.indexOf('|');
		if(delimit == -1) {
			// 如果等于-1，则是普通的系统广播消息
			ret[0] = "10000";
			date.setTime((long)me.getTime() * 1000L);
			ret[1] = shortDateFormat.format(date);
			ret[2] = msg;
		} else {
			// 设置发送者QQ号
			ret[0] = String.valueOf(me.getSender());
			// 设置时间
			date.setTime((long)me.getTime() * 1000L);
			ret[1] = shortDateFormat.format(date);
			// 设置消息内容
			ret[2] = msg.substring(delimit + 1);
		}
		return ret;
	}
	
	/* (non-Javadoc)
	 * @see edu.tsinghua.lumaqq.IRecordFormatter#copy(edu.tsinghua.lumaqq.MessageEntry)
	 */
	public String copy(MessageEntry me) {
		return me.getMessage().substring(me.getMessage().lastIndexOf('|') + 1);
	}
}