package tsinghuaip;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
import com.borland.jbcl.layout.*;
import javax.swing.border.*;
import java.util.*;
import java.math.*;

public class IPAssignFrm extends JFrame {
    JPanel contentPane;
    XYLayout xYLayout1 = new XYLayout();

    DefaultTableColumnModel columnModel = new DefaultTableColumnModel();
    TableColumn column = new TableColumn();
    JTableHeader tableHeader = new JTableHeader(columnModel);

    IPInfoDataModel ipInfoDataModal = new IPInfoDataModel();
    JTable jTable1 = new JTable(ipInfoDataModal);
    JLabel jLabel1 = new JLabel();
    JButton queryButton = new JButton();
    JButton exitButton = new JButton();
    JFormattedTextField IPAddrTextField = new JFormattedTextField();
    TitledBorder titledBorder1;
    TitledBorder titledBorder2;
    TitledBorder titledBorder3;
    JLabel jLabel2 = new JLabel();

    //Construct the frame
    public IPAssignFrm() {
        enableEvents(AWTEvent.WINDOW_EVENT_MASK);
        try {
            IPInfoInit(); // some initialization about IP info
            jbInit();

            addWindowListener(new WindowAdapter() {
                public void windowClosing(WindowEvent e) {
                    dispose();
                }
            });
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void IPInfoInit() throws Exception {
        IPInfoToDB iPInfoToDB = new IPInfoToDB();
        iPInfoToDB.SetTxtFileName("TsinghuaIPAssign.txt");
        iPInfoToDB.SaveIPToDB();

        //GenXML genXML = new GenXML();
        //genXML.SetXmlFileName("TsinghuaIPAssign.xml");
        //genXML.SaveIPFromDB();
    }

    //Component initialization
    private void jbInit() throws Exception {
        contentPane = (JPanel)this.getContentPane();
        titledBorder1 = new TitledBorder("");
        titledBorder2 = new TitledBorder("");
        titledBorder3 = new TitledBorder("");
        contentPane.setMaximumSize(new Dimension(480, 400));
        contentPane.setMinimumSize(new Dimension(480, 400));
        contentPane.setOpaque(true);
        contentPane.setPreferredSize(new Dimension(480, 400));
        contentPane.setLayout(xYLayout1);
        this.setContentPane(contentPane);
        this.setDefaultCloseOperation(HIDE_ON_CLOSE);
        this.setSize(new Dimension(550, 400));
        this.setTitle("清華大學IP地址分布查詢器(野人制作)");
        jTable1.setBackground(new Color(149, 165, 182));
        jTable1.setToolTipText("清華大學IP地址分配表");
        jTable1.setRowHeight(25);
        jTable1.setRowMargin(3);
        jLabel1.setFont(new java.awt.Font("Dialog", 0, 15));
        jLabel1.setRequestFocusEnabled(false);
        jLabel1.setText("請出入待查詢的IP地址：");
        queryButton.setFont(new java.awt.Font("DialogInput", 1, 16));
        queryButton.setText("開始查詢");
        queryButton.addActionListener(new IPAssignFrm_queryButton_actionAdapter(this));
        IPAddrTextField.setBackground(Color.white);
        IPAddrTextField.setBorder(BorderFactory.createEtchedBorder());
        IPAddrTextField.setHorizontalAlignment(SwingConstants.CENTER);
        IPAddrTextField.setText("");
        jLabel2.setFont(new java.awt.Font("Monospaced", 0, 13));
        jLabel2.setForeground(Color.darkGray);
        jLabel2.setToolTipText("");
        jLabel2.setText("Savage制作@CopyRight 2003-2010...");
        JScrollPane scrollpane = JTable.createScrollPaneForTable(jTable1);
        exitButton.addActionListener(new IPAssignFrm_exitButton_actionAdapter(this));
        exitButton.setText("退出系統");
        exitButton.addActionListener(new IPAssignFrm_exitButton_actionAdapter(this));
        exitButton.setFont(new java.awt.Font("DialogInput", 1, 16));
        contentPane.add(scrollpane, new XYConstraints(16, 22, 510, 202));
        contentPane.add(jLabel1, new XYConstraints(30, 249, 167, 37));
        contentPane.add(IPAddrTextField, new XYConstraints(214, 250, 152, 34));
        contentPane.add(jLabel2, new XYConstraints(114, 357, 288, -1));
        contentPane.add(exitButton, new XYConstraints(312, 301, 136, 31));
        contentPane.add(queryButton, new XYConstraints(66, 299, 136, 31));
    }

    //Overridden so we can exit when window is closed
    protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);
        if (e.getID() == WindowEvent.WINDOW_CLOSING) {
            System.exit(0);
        }
    }

    void queryButton_actionPerformed(ActionEvent e) {
        String strIP = IPAddrTextField.getText();
        if (strIP.trim().length() == 0) {
            JOptionPane anOptionPane = new JOptionPane(); //彈出對話框
            anOptionPane.showMessageDialog(this, "請輸入待查詢得IP地址!", "輸入提示",
                                           JOptionPane.ERROR_MESSAGE);

            return;
        }
        QueryIP(strIP);
    }

    /**********************************************
     這個函數的作用就是查詢輸入的IP地址
     **********************************************/
    private void QueryIP(String strIP) {
        strIP = strIP.trim();
        String strResult;

        //檢查IP地址格式
        if (CheckIPFormat(strIP) == false) {
            strResult = "對不起,IP地址輸入錯誤！";
            JOptionPane anOptionPane = new JOptionPane(); //彈出對話框
            anOptionPane.showMessageDialog(this, strResult, "IP地址輸入格式錯誤",
                                           JOptionPane.ERROR_MESSAGE);
            return;
        }

        //將IP地址字符串中的'.'去掉
        strIP = IngnoreIPDot(strIP);

        //將去掉'.'的IP地址字符串轉換為長整數
        BigInteger bigIntIP = StringToBigInt(strIP);

        //查找IP地址所屬單位
        strResult = CheckIPInList(bigIntIP);
        JOptionPane anOptionPane = new JOptionPane(); //彈出對話框
        anOptionPane.showMessageDialog(this, strResult, "查詢結果",
                                       JOptionPane.PLAIN_MESSAGE);
    }

    /**********************************************
     這個函數的作用就是檢查輸入的IP地址的格式是否正確
     **********************************************/
    private boolean CheckIPFormat(String strIP) {
        int intLen = strIP.length();
        int index = 0;

        if (strIP.length() > 15)
            return false;

        while (index < intLen) {
            if ( ( (strIP.charAt(index) >= '0') && (strIP.charAt(index) <= '9'))
                || (strIP.charAt(index) == '.')) {
                index++;
            }
            else
                break;
        }

        if (index < intLen)
            return false;

        return true;
    }

    /********************************************************
     這個函數的作用就是將IP地址中間的‘.’去掉將其連成一純數字字符串
     *********************************************************/
    private String IngnoreIPDot(String strIP) {
        String strTmp = new String("");
        strIP = strIP.trim();
        StringTokenizer token = new StringTokenizer(strIP, ".");
        while (token.hasMoreElements()) {
            strTmp = strTmp.concat( (String) token.nextElement());
        }

        return strTmp;
    }

    /**********************************************
         這個函數的作用就是將數字字符串轉換為長整數
     **********************************************/
    private BigInteger StringToBigInt(String strIP) {
        return new BigInteger(strIP);
    }

    /**********************************************
         這個函數的作用就是在已有IP地址列表中查找此IP地址，如果
         找到就返回該IP地址的所屬單位，如果找不到就報錯
     **********************************************/
    public String CheckIPInList(BigInteger bigIntIP) {
        SAXParseIPInfo parseIPInfo = new SAXParseIPInfo();
        try {
            parseIPInfo.ParseIPInfo();
        }
        catch (Exception e) {
            e.printStackTrace();
        }

        Vector startIPVector = parseIPInfo.GetStartIPVector();
        Vector endIPVector = parseIPInfo.GetEndIPVector();
        Vector localVector = parseIPInfo.GetLocalVector();
        int intLen = endIPVector.size();

        for (int i = 1; i < intLen; i++) {
            BigInteger bigIntStartIP = StringToBigInt(
                IngnoreIPDot( (String) startIPVector.elementAt(i)));
            BigInteger bigIntEndIP = StringToBigInt(
                IngnoreIPDot( (String) endIPVector.elementAt(i)));

            if ( ( (bigIntIP.compareTo(bigIntStartIP) == 1) &&
                  (bigIntIP.compareTo(bigIntEndIP) == -1))
                || (bigIntIP.compareTo(bigIntStartIP) == 0)
                || (bigIntIP.compareTo(bigIntEndIP) == 0)) {
                String strResult = "此IP屬于";
                strResult = strResult.concat( (String) localVector.elementAt(i));
                return strResult;
            }
        }
        return "對不起，此IP不屬于清華大學！";
    }

    void exitButton_actionPerformed(ActionEvent e) {
        System.exit(0);
    }

}

class IPAssignFrm_queryButton_actionAdapter implements java.awt.event.
    ActionListener {
    IPAssignFrm adaptee;

    IPAssignFrm_queryButton_actionAdapter(IPAssignFrm adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.queryButton_actionPerformed(e);
    }
}

class IPInfoDataModel extends AbstractTableModel {
    private Object[][] arrIPInfo;
    private Vector startIPVector;
    private Vector endIPVector;
    private Vector localVector;

    public IPInfoDataModel() {
        SAXParseIPInfo parseIPInfo = new SAXParseIPInfo();
        try {
            parseIPInfo.ParseIPInfo();
        }
        catch (Exception e) {
            e.printStackTrace();
        }

        startIPVector = parseIPInfo.GetStartIPVector();
        endIPVector = parseIPInfo.GetEndIPVector();
        localVector = parseIPInfo.GetLocalVector();
        int intLen = startIPVector.size();

        arrIPInfo = new Object[intLen][3];
        for (int i = 0; i < intLen; i++) {
            arrIPInfo[i] = new Object[3];
        }

        for (int m = 0; m < intLen-1; m++) {
            //System.out.print(m);
            arrIPInfo[m][0] = startIPVector.elementAt(m);
            arrIPInfo[m][1] = endIPVector.elementAt(m);
            arrIPInfo[m][2] = localVector.elementAt(m);
        }

    }

    public int getColumnCount() {
        return arrIPInfo[0].length;
    }

    public int getRowCount() {
        return arrIPInfo.length - 1;
    }

    public Object getValueAt(int row, int col) {
        return arrIPInfo[row][col];
    }

    public boolean isCellEditable(int row, int col) {
        return false;
    }
}

class IPAssignFrm_exitButton_actionAdapter implements java.awt.event.
    ActionListener {
    IPAssignFrm adaptee;

    IPAssignFrm_exitButton_actionAdapter(IPAssignFrm adaptee) {
        this.adaptee = adaptee;
    }

    public void actionPerformed(ActionEvent e) {
        adaptee.exitButton_actionPerformed(e);
    }
}