xmlcreator.java

可以实现P2P聊天通信

package jxtamessenger.xml;

import java.util.logging.Logger;

import jxtamessenger.bean.ChatMessage;
import jxtamessenger.bean.OfflineMessage;
import jxtamessenger.bean.OnlineMessage;
import jxtamessenger.util.MiscUtil;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

/**
 * class取bean的全名称
 * Element的名称取bean的属性名称
 * Element的值为String类型
 */
public class XmlCreator {
	@SuppressWarnings("unused")
	private static final Logger LOG = Logger.getLogger(XmlCreator.class.getName());
	
	public static String createOnlineMessage() {
        Document document = DocumentHelper.createDocument();
        Element root = document.addElement("root").addAttribute("class", OnlineMessage.class.getCanonicalName());

        // TODO: Read user's configuration from property file, For simplicity, here use user's host name instead.
        root.addElement("hostName").addText(MiscUtil.getHostName());
        root.addElement("userName").addText(MiscUtil.getUserName());

        return document.asXML();
	}
	
	public static String createOfflineMessage() {
        Document document = DocumentHelper.createDocument();
        Element root = document.addElement("root").addAttribute("class", OfflineMessage.class.getCanonicalName());

        root.addElement("hostName").addText(MiscUtil.getHostName());
        root.addElement("userName").addText(MiscUtil.getUserName());
        
        return document.asXML();
	}
	
	public static String createChatMessage(String message) {
        Document document = DocumentHelper.createDocument();
        Element root = document.addElement("root").addAttribute("class", ChatMessage.class.getCanonicalName());

        root.addElement("hostName").addText(MiscUtil.getUserName());
        root.addElement("userName").addText(MiscUtil.getHostName());
//        root.addElement("sendUserName").addText(sendUserName);
//        root.addElement("sendHostName").addText(sendHostName);
        root.addElement("message").addText(message);
        
        return document.asXML();
	}
}