userinfo.java

该系统是一个基于p2p的即时聊天系统

/*
 * @(#) UserInfo.java
 * Copyright 2004 HWStudio. All rights reserved.
 */
package hws.item.smart.utility.chat;
//导入核心Java类库
import java.io.IOException;
import java.io.StringReader;
import java.net.MalformedURLException;
import java.util.List;
import java.util.Vector;
import javax.swing.JOptionPane;
//导入自定义Java类库
import hws.item.smart.Smart;
import hws.item.smart.misc.XMLConfig;
import hws.item.smart.utility.share.SharesInfo;
//导入第三方Java类库
import org.jdom.Element;
import org.jdom.Document;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.XMLOutputter;
import org.apache.xmlrpc.XmlRpc;
import org.apache.xmlrpc.XmlRpcClient;
import org.apache.xmlrpc.XmlRpcRequest;
import org.apache.xmlrpc.XmlRpcException;
/**
 * 用户信息
 *
 * @version 0.1 2005-08-19
 * @author Hwerz
 */
public class UserInfo extends Object {
    /*------------------------------------------------------------------------*
     *                                属性定义                                *
     *------------------------------------------------------------------------*/
    /**
     * 静态常量
     */
    private static final String MESSAGEPANE_TITLE = "提示";
    /**
     * 基本信息
     */
    private BasicInfo basicInfo;
    /**
     * 可选信息
     */
    private OptionalInfo optionalInfo;
    /**
     * 好友信息
     */
    private FriendsInfo friendsInfo;
    /**
     * 共享信息
     */
    private SharesInfo sharesInfo;
    /*------------------------------------------------------------------------*
     *                                构造函数                                *
     *------------------------------------------------------------------------*/
    /**
     * Create a new instance of this class
     *
     * @param info1 基本信息
     * @param info2 可选信息
     * @param info3 好友信息
     * @param info4 共享信息
     */
    public UserInfo(BasicInfo info1, OptionalInfo info2, FriendsInfo info3,
        SharesInfo info4) {
        super();
        basicInfo = info1;
        optionalInfo = info2;
        friendsInfo = info3;
        sharesInfo = info4;
    }
    /*------------------------------------------------------------------------*
     *                                公共方法                                *
     *------------------------------------------------------------------------*/
    /**
     * 将指定的User元素转换成UserInfo对象
     *
     * @param user 指定的User元素
     * @return 转换后的UserInfo对象
     */
    public static UserInfo userElement2UserInfo(Element user) {
        Element element = user.getChild("Basic");
        BasicInfo info1 = new BasicInfo(
            element.getChild("ID").getValue(),
            element.getChild("Nickname").getValue(),
            element.getChild("Password").getValue());
        element = user.getChild("Optional");
        OptionalInfo info2 = new OptionalInfo(
            element.getChild("Name").getValue(),
            element.getChild("Gender").getValue(),
            element.getChild("Birthday").getValue(),
            element.getChild("Country").getValue(),
            element.getChild("Province").getValue(),
            element.getChild("City").getValue(),
            element.getChild("Telephone").getValue(),
            element.getChild("Email").getValue(),
            element.getChild("Address").getValue(),
            element.getChild("Postalcode").getValue(),
            element.getChild("Homepage").getValue(),
            element.getChild("Remark").getValue());
        element = user.getChild("Friends");
        FriendsInfo info3 = new FriendsInfo();
        List friends = element.getChildren();
        for (int i = 0; i < friends.size(); i++) {
            Element friend = (Element) friends.get(i);
            info3.addFriend(friend.getAttributeValue("id"));
        }
        element = user.getChild("Shares");
        SharesInfo info4 = SharesInfo.sharesElement2SharesInfo(element);
        return new UserInfo(info1, info2, info3, info4);
    }
    /**
     * 根据指定用户的ID获取远程的用户信息
     *
     * @param id 指定用户的ID
     * @return 远程的用户信息
     */
    public static UserInfo getRemoteUserInfo(String id) {
        UserInfo info = null;
        try {
            XmlRpc.setDriver("org.apache.xerces.parsers.SAXParser");
            XmlRpcClient client = new XmlRpcClient(genURL());
            String response = client.execute(genRequest(id)).toString();
            SAXBuilder builder = new SAXBuilder();
            StringReader reader = new StringReader(response);
            Document document = builder.build(reader);
            Element root = document.getRootElement();
            info = userElement2UserInfo(root.getChild("User"));
        } catch (ClassNotFoundException e) {
            JOptionPane.showMessageDialog(Smart.getInstance(),
                "系统找不到类库“org.apache.xerces.parsers.SAXParser”！",
                MESSAGEPANE_TITLE, JOptionPane.INFORMATION_MESSAGE);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (XmlRpcException e) {
            e.printStackTrace();
        } catch (IOException e) {
            JOptionPane.showMessageDialog(Smart.getInstance(),
                "用户服务已关闭，请稍候再试！", MESSAGEPANE_TITLE,
                JOptionPane.INFORMATION_MESSAGE);
        } catch (JDOMException e) {
            e.printStackTrace();
        }
        return info;
    }
    /**
     * 返回用户基本信息
     *
     * @return 用户基本信息
     */
    public BasicInfo getBasicInfo() {
        return basicInfo;
    }
    /**
     * 返回用户可选信息
     *
     * @return 用户可选信息
     */
    public OptionalInfo getOptionalInfo() {
        return optionalInfo;
    }
    /**
     * 返回用户好友信息
     *
     * @return 用户好友信息
     */
    public FriendsInfo getFriendsInfo() {
        return friendsInfo;
    }
    /**
     * 返回用户共享信息
     *
     * @return 用户共享信息
     */
    public SharesInfo getSharesInfo() {
        return sharesInfo;
    }
    /*------------------------------------------------------------------------*
     *                                私有方法                                *
     *------------------------------------------------------------------------*/
    /**
     * 生成请求URL
     *
     * @return 生成的请求URL
     */
    private static String genURL() {
        StringBuffer url = new StringBuffer();
        url.append("http://");
        url.append(XMLConfig.getServicesIP());
        url.append(":");
        url.append(XMLConfig.getUserPort());
        url.append("/");
        return url.toString();
    }
    /**
     * 生成XML-RPC请求消息
     *
     * @param id 指定用户的ID
     * @return 生成的XML-RPC请求消息
     */
    private static XmlRpcRequest genRequest(String id) {
        //请求方法
        StringBuffer method = new StringBuffer();
        method.append(XMLConfig.getUserClass());
        method.append(".");
        method.append(XMLConfig.getUserMethod());
        //请求参数
        Vector params = new Vector();
        XMLOutputter outputter = new XMLOutputter();
        params.addElement(outputter.outputString(genDocument(id)));
        return new XmlRpcRequest(method.toString(), params);
    }
    /**
     * 生成XML文档
     *
     * @param id 指定用户的ID
     * @return 生成的XML文档
     */
    private static Document genDocument(String id) {
        Element request = new Element("Request");
        Element level1 = new Element("ID");
        level1.setText(id);
        request.addContent(level1);
        return new Document(request);
    }
    /*------------------------------------------------------------------------*
     *                                覆盖方法                                *
     *------------------------------------------------------------------------*/
    /**
     * 覆盖超类Object的方法
     *
     * @return a string representation of the account
     */
    public String toString() {
        return basicInfo.getID();
    }
}