vlog.java

tbuy1.1.5是在netbeans环境下用JSF技术编写的一个论坛tbuy1.1.5是在netbeans环境下用JSF技术编写的一个论坛

/*
 * 作者: 胡李青
 * qq: 31703299
 * Copyright (c) 2007 huliqing
 * 主页 http://www.tbuy.biz/
 * 你可以免费使用该软件，未经许可请勿作用于任何商业目的
 */

package biz.tbuy.common.logs;

import biz.tbuy.common.ComApplication;
import biz.tbuy.common.Constants;
import biz.tbuy.common.Visitor;
import biz.tbuy.share.XmlOper;
import java.io.File;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;

/**
 * @author huliqing
 * <p><b>qq：</b>31703299
 * <p><b>E-mail：</b><a href="mailto:[e-mail]">[e-mail]</a>
 * <p><b>Homepage：</b><a href="http://www.tbuy.biz/">http://www.tbuy.biz/</a>
 */
public class Vlog implements Serializable{
            
    public Vlog() {}
    
    /**
     * 获取访问日志信息
     * @return vlogs
     */
    public List<Map<String, String>> getVlogsByDate(Date date) {
        List<Map<String, String>> vlogs = new ArrayList<Map<String, String>>();
        File vlogFile = getLogFile(date);
        try {
            Document doc = XmlOper.getDocument(vlogFile);
            Element root = doc.getDocumentElement();
            NodeList visitors = root.getElementsByTagName("visitor");
            int len = visitors.getLength();
            for (int i = 0; i < len; i++) {
                Element visitor = (Element)visitors.item(i);
                String ip = visitor.getElementsByTagName("ip").item(0).getTextContent();
                String user = visitor.getElementsByTagName("user").item(0).getTextContent();
                String startTime = visitor.getElementsByTagName("start-time").item(0).getTextContent();
                String endTime = visitor.getElementsByTagName("end-time").item(0).getTextContent();
                Map<String, String> vlog = new HashMap<String, String>(4);
                vlog.put("ip", ip);
                vlog.put("user", user);
                vlog.put("startTime", startTime);
                vlog.put("endTime", endTime);
                vlogs.add(vlog);
            }
        } catch (Exception e) {
            System.out.println("Exception:Vlog:getVlogsByDate:" + e.getMessage());
        }
        return vlogs;
    }
    
    /**
     * 登记访问者
     */ 
    public void log(Visitor visitor) {
        try {
            File vlogFile = getLogFile(new Date());
            Document doc = XmlOper.getDocument(vlogFile);
            Element xRoot = doc.getDocumentElement();
            Element xVisitor = doc.createElement("visitor");
            Element xIp = doc.createElement("ip");
            Element xUser = doc.createElement("user");
            Element xStartTime = doc.createElement("start-time");
            Element xEndTime = doc.createElement("end-time");
            
            Text xIp_text = doc.createTextNode(visitor.getIp());
            Text xUser_text;
            Text xStartTime_text;
            if (visitor.isLogin()) {
                xUser_text = doc.createTextNode(visitor.getUser().getId());
                Date nowTime = new Date();
                SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
                xStartTime_text = doc.createTextNode(sdf.format(nowTime));
            } else {
                // 如果用户未登录，则startTime使用用户的首次访问时间
                xUser_text = doc.createTextNode("--");
                xStartTime_text = doc.createTextNode(visitor.getFirstTime());
            }
            Text xEndTime_text = doc.createTextNode("--");
            
            xRoot.appendChild(xVisitor);
            xVisitor.appendChild(xIp);
            xVisitor.appendChild(xUser);
            xVisitor.appendChild(xStartTime);
            xVisitor.appendChild(xEndTime);
            xIp.appendChild(xIp_text);
            xUser.appendChild(xUser_text);
            xStartTime.appendChild(xStartTime_text);
            xEndTime.appendChild(xEndTime_text);
            
            XmlOper.saveDocument(doc, vlogFile);
        } catch (Exception saxe) {
            System.out.println("Exception:Vlog:log:" + saxe.getMessage());
        }
    }
    
    /**
     * 记录用户的大概离开时的时间
     */ 
    public void logLeave(Visitor visitor) {
        try {
            File vlogFile = getLogFile(new Date());
            Document doc = XmlOper.getDocument(vlogFile);
            Element xRoot = doc.getDocumentElement();
            NodeList visitors = xRoot.getElementsByTagName("visitor");
            int len = visitors.getLength();
            Date nowTime = new Date();
            SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
            String endTime = sdf.format(nowTime);
            
            for (int i = len - 1; i >= 0; i++) {
                Element xVisitor = (Element)visitors.item(i);
                String ip = xVisitor.getElementsByTagName("ip").item(0).getTextContent();
                String user = xVisitor.getElementsByTagName("user").item(0).getTextContent();
                String startTime = xVisitor.getElementsByTagName("start-time").item(0).getTextContent();
                //System.out.println(ip + ":" + user + ":" + startTime);
                if (!visitor.isLogin()) {
                    if (ip.equals(visitor.getIp()) && startTime.equals(visitor.getFirstTime())) {
                        xVisitor.getElementsByTagName("end-time").item(0).setTextContent(endTime);
                        break;
                    }
                } else {
                    if (ip.equals(visitor.getIp()) && user.equals(visitor.getUser().getId())) {
                        xVisitor.getElementsByTagName("end-time").item(0).setTextContent(endTime);
                        break;
                    }
                }
            }
            XmlOper.saveDocument(doc, vlogFile);
        } catch (Exception e) {
            System.out.println("Exception:Vlog:logLeave:" + e.getMessage());
        }
    }
    /**
     * 测试中..........
     * 记录用户的大概离开时的时间,多个用户
     */ 
    public void logLeave(List<Visitor> someVisitors) {
        if (someVisitors == null || someVisitors.isEmpty()) return;
        try {
            File vlogFile = getLogFile(new Date());
            Document doc = XmlOper.getDocument(vlogFile);
            Element xRoot = doc.getDocumentElement();
            NodeList visitors = xRoot.getElementsByTagName("visitor");
            int len = visitors.getLength();
            Date nowTime = new Date();
            SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
            String endTime = sdf.format(nowTime);
            for (Visitor visitor : someVisitors) {
                for (int i = len - 1; i >= 0; i++) {
                    Element xVisitor = (Element)visitors.item(i);
                    String ip = xVisitor.getElementsByTagName("ip").item(0).getTextContent();
                    String user = xVisitor.getElementsByTagName("user").item(0).getTextContent();
                    String startTime = xVisitor.getElementsByTagName("start-time").item(0).getTextContent();
                    //System.out.println(ip + ":" + user + ":" + startTime);
                    if (!visitor.isLogin()) {
                        if (ip.equals(visitor.getIp()) && startTime.equals(visitor.getFirstTime())) {
                            xVisitor.getElementsByTagName("end-time").item(0).setTextContent(endTime);
                            break;
                        }
                    } else {
                        if (ip.equals(visitor.getIp()) && user.equals(visitor.getUser().getId())) {
                            xVisitor.getElementsByTagName("end-time").item(0).setTextContent(endTime);
                            break;
                        }
                    }
                }
            }
            XmlOper.saveDocument(doc, vlogFile);
        } catch (Exception e) {
            System.out.println("Exception:Vlog:logLeave(manay):" + e.getMessage());
        }
    }
    
    /**
     * 获取特定日期的日志文件路径
     */
    private File getLogFile(Date date) {
        //System.out.println("in getLogFile...");
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        String filename = "vlog" + sdf.format(date) + ".xml";
        String vlog = getVlogPath() + "/" + filename;
        File file = new File(vlog);
        if (!file.exists()) {
            newXML(vlog);
        }
        //System.out.println("vlog" + vlog);
        return file;
    }
    
    /**
     * 创建新的xml文件
     */
    private void newXML(String path) {
        try {
            Document doc = XmlOper.newDocument();
            Element root = doc.createElement("root");
            doc.appendChild(root);
            XmlOper.saveDocument(doc, path);
        } catch (Exception e) {
            System.out.println("Exception:Vlog:newXML:" + e.getMessage());
        }
    }
    
    /**
     * 获取访问日志文件的绝对路径
     */
    private String getVlogPath() {
        return ComApplication.getInstance().getServletContextPath() + 
                Constants.PATH_VLOG;
    }
}