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/**********************************************************************************
 * $URL: https://source.sakaiproject.org/svn/chat/tags/sakai-10.7/chat-api/api/src/java/org/sakaiproject/chat2/model/ChatMessage.java $
 * $Id: ChatMessage.java 105079 2012-02-24 23:08:11Z [email protected] $
 ***********************************************************************************
 *
 * Copyright (c) 2007, 2008 The Sakai Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.opensource.org/licenses/ECL-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 **********************************************************************************/
 
package org.sakaiproject.chat2.model;


import java.util.Date;
import java.util.Stack;

import org.sakaiproject.component.cover.ServerConfigurationService;
import org.sakaiproject.entity.api.Entity;
import org.sakaiproject.entity.api.ResourceProperties;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

/**
 * 
 * @author andersjb
 *
 */
public class ChatMessage implements Entity {

   private String id;
   private ChatChannel chatChannel;
   private String owner;
   private Date messageDate;
   private String body;
   private String migratedMessageId;

   
   public ChatMessage() {
   }
   
   static String urlRegexp = "https?://[\\S]+";
   static String bodyRegexp = ".*"+urlRegexp+".*";
   static String parenRegexp = "[\\s+(]";
   static String cleanRegexp = "\\s+";
   static String firstRegexp = "^";
   
   static String href_1  = "";
   static String href_3 = " ";
   
   /** Get body of chat message
    **/
   public String getBody() {
      return body;
   }
     
   /** Set body of chat message, adding html anchor tags as appropriate
    **/
   public void setBody(String body) {
      String formattedBody = body;
      
      // create hyperlinks from urls
      if ( formattedBody.matches(bodyRegexp) )
      {
         // split on spaces, parenthesis, and backslashes
         String[] parts = formattedBody.split("[\\s()\\\\]");
      
         for (int i=0; i