//////////////////////////////////////////////////
//Server.java
//071026 11:40   hejia
//////////////////////////////////////////////////


import java.io.*;
import java.net.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.swing.Timer;

public class Server /*++Timer++*/implements ActionListener
{ 
 public static void main(String args[])
    {
   	  ServerSocket server=null;
      Server_thread thread;
      Socket you=null;
      int clientNumber=0;
      Timer time;
      Server_thread t[];
      
      //String temp1=null;
      //StringBuffer Content= new StringBuffer("");
      
      FileWindows win=new FileWindows();
      //File Store _ADD
      
      while(true) 
       {  
          try{  
       			server=new ServerSocket(4331);
             }
          catch(IOException e1) 
             { 
                System.out.println("正在監聽"); //ServerSocket對象不能重復創建
             } 
          try{  
          	    System.out.println(" 等待客戶呼叫");
                you=server.accept();  //程序將在此等候客戶端的連接
                clientNumber++;   //記錄客戶數目 
                System.out.println("客戶的地址:"+you.getInetAddress());
             }
         catch (IOException e)
             {  
             	System.out.println("正在等待客戶");
             }
         if(you!=null) 
             {  
               /*Old_Editon*/ 
               // new Server_thread(you,clientNumber/*,temp1*/).start();  
               //為每個客戶啟動一個專門的線程 
               
               /*New_Editon*/ 
                Server_thread t[clientNumber]= new Server_thread(you,clientNumber/*,temp1*/); 
                Server_thread t[clientNumber].start();
             }
       }     
    }
    
    public void actionPerformed(ActionEvent e) 
    {  
       if(e.getSource()==time)
       {
        //	Server_thread t[clientNumber].send(); 
        //每隔一定時間，向所有客戶端發送更新的數據
        //相應的在Server_thread中應添加 public void send();
       }
    }
}


class Server_thread extends Thread
{  
   Socket socket;
   int clientNumber;
   DataOutputStream out=null;
   DataInputStream  in=null;
   static String temp=null;
   static StringBuffer Content= new StringBuffer("");
   
   Server_thread(Socket t,int clientNum/*,String temp1*/)
   {
   	  socket=t;
   	  this.clientNumber=clientNum;
   	  //temp=temp1;
   	  
      try { 
             out=new DataOutputStream(socket.getOutputStream());
             in=new DataInputStream(socket.getInputStream());
          }
      catch (IOException e)
          {}
   }  
   public /*static*/ synchronized void save(String s)
   {
   	     // int num1=this.clientNumber;
   	     // String num=" "+(String)num1;
   	      
   	     Content.append(s/*+num*/+"\n");
   	     temp=Content.toString();
   	     
   	     //保存聊天記錄于user.dat 
   	   	 try{  
            File f=new File("user.dat"); 
            FileWriter out1=new FileWriter(f);
            char a[]=temp.toCharArray(); 
            
            out1.write(a,0,a.length);
            out1.close();
            }
         catch(IOException e)
         {  System.out.println("File read Error");
         }  
   	        
   }
   
   public /*static*/ String read()
   {	
          return temp;
   }
   
   public void run()        
   { 
    String s=null;
    while(true)
      {  
      
         try{  
             s=in.readUTF();//堵塞狀態，除非讀取到信息
             //Content.append(s+"\n");
             save(s);
             out.writeUTF(read());
             
             /*  quesion=false;
               StringTokenizer fenxi=new StringTokenizer(s," ,");
                 while(fenxi.hasMoreTokens())
                   {  String temp=fenxi.nextToken();
                      try{  a[i]=Double.valueOf(temp).doubleValue();i++;
                         }
                      catch(NumberFormatException e)
                         {  out.writeUTF("請輸入數字字符");
                            quesion=true;
                         }
                   }
                if(quesion==false)
                {  double p=(a[0]+a[1]+a[2])/2.0;
                   out.writeUTF(" "+Math.sqrt(p*(p-a[0])*(p-a[1])*(p-a[2])));
                }
                */
            }
         catch (IOException e) 
            {  System.out.println("客戶離開");
               return;
            }
      }
   } 
}
  
/*
public class Example10_9
{  public static void main(String args[])
    {  FileWindows win=new FileWindows();
    }
}
 */

class  FileWindows extends Frame implements ActionListener
	{
    FileDialog filedialog_save,filedialog_load;//聲明2個文件對話筐
    MenuBar menubar;
    Menu menu,menu1;
    MenuItem itemOpen,itemSave,itemShow;
    TextArea text;
    
    BufferedReader in;  
    FileReader file_reader;
    BufferedWriter out; 
    FileWriter tofile;
    FileWindows()
    {  super("服務器端控制臺");     
       
       //setSize(260,270);               
       //setVisible(true);    
       menubar=new MenuBar();   
       menu=new Menu("文件");
       menu1=new Menu("查看聊天記錄"); 
   
       itemShow=new MenuItem("查看");
       itemOpen=new MenuItem("打開文件");
       itemSave=new MenuItem("保存文件"); 
       itemShow.addActionListener(this); 
       itemOpen.addActionListener(this); 
       itemSave.addActionListener(this);
       
       //ADD MenuItem
       menu1.add(itemShow);
       menu.add(itemOpen);
       menu.add(itemSave);
       menubar.add(menu); 
       menubar.add(menu1); 
       setMenuBar(menubar);    
       setBounds(250,250,260,270);
          
       filedialog_save=new FileDialog(this,"保存文件話框",FileDialog.SAVE);
       filedialog_load=new FileDialog(this,"打開文件話框",FileDialog.LOAD);
       filedialog_save.addWindowListener(new WindowAdapter()
                                  {public void windowClosing(WindowEvent e)
                                       {  filedialog_save.setVisible(false);
                                       }
                                  });
       filedialog_load.addWindowListener(new WindowAdapter()//對話框增加適配器
                                  {public void windowClosing(WindowEvent e)
                                       {  filedialog_load.setVisible(false);
                                       }
                                  });
       addWindowListener(new WindowAdapter() 
                                  {public void windowClosing(WindowEvent e)
                                       {  System.exit(0);}
                                       });
       text=new TextArea(10,10);
       add(text,BorderLayout.CENTER);
       setVisible(true);  
  }
  
  public void actionPerformed(ActionEvent e) 
  {  
   	int b;
  	char tom[]=new char[25];
  	String ss=null,temp="";
        	
  	if(e.getSource()==itemOpen)
       {  
       	  filedialog_load.setVisible(true);
          text.setText(null);
          String s;
          if(filedialog_load.getFile()!=null)
             {  
               try{  
             		  File file= new  
                      File(filedialog_load.getDirectory(),filedialog_load.getFile());
                      file_reader=new FileReader(file);
                      in=new BufferedReader(file_reader);
                      while((s=in.readLine())!=null)
                           text.append(s+'\n'); 
                      in.close();
                      file_reader.close();
                   }
                catch(IOException e2){}
             }
        }
     else if(e.getSource()==itemSave)
        {  
           filedialog_save.setVisible(true);
           if(filedialog_save.getFile()!=null)
              { 
              	try {  
              		   File file=new
                       File(filedialog_save.getDirectory(),filedialog_save.getFile());
                       tofile=new FileWriter(file);
                       out=new BufferedWriter(tofile);
                       out.write(text.getText(),0,(text.getText()).length());
                       out.close();
                       tofile.close();
                     }
                catch(IOException e2){}
              }
        }
      else if(e.getSource()==itemShow)
        {
        
        	
        	 
      		try{  
           	     //File f=new  File("Client.txt");
   	      		 //FileInputStream in =new FileInputStream(f);
          		 FileReader in = new FileReader("user.dat");
          
          		 while((b=in.read(tom,0,25))!=-1) 
               		 { 
                      ss=new String (tom,0,b);
                      temp+=ss;
                      //text.appendText(ss+"\n");
                 	  //System.out.print(s);
              		  }
           			in.close();
           			text.setText(temp);
          		 }
          	catch(IOException ee)
         {  System.out.println("File read Error"+ee);
         } 
         
            //text.appendText(ss+"\n");
              
        }
   } 
}