messagerenderer.java

使用工具jublider开发的一个聊天室实现基本功能,

/**
 * 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 01.10.2003
 */

package freecs.core;

import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.CharacterCodingException;
import java.util.StringTokenizer;

import freecs.Server;
import freecs.content.MessageState;
import freecs.interfaces.IGroupState;
import freecs.interfaces.IUserStates;
import freecs.layout.TemplateManager;
import freecs.layout.TemplateSet;
import freecs.util.EntityDecoder;
import freecs.util.HashUtils;

/**
 * @author Manfred Andres
 *
 * freecs.core
 */
public class MessageRenderer {
	/**
	 * renders the given template
	 * @param msgTpl the raw message-template
	 * @return the rendered template as String with all placeholders replaced by their coresponding value
	 */
   public static String renderTemplate (MessageState msgState, String msgTpl) {
	  return renderTemplate (msgState, msgTpl, msgTpl.equals ("list.users") ? false : true);
   }
   public static String renderTemplate (MessageState msgState, String msgTpl, boolean addBreak) {
	  if (msgTpl == null) 
          return null;
	  StringBuffer sb = new StringBuffer ();
	  for (StringTokenizer st = new StringTokenizer (msgTpl, "