clientgui.java

JAVA实现的聊天工具,可以容纳最多10个用户 1.本系统需要JDK1.5 或更高版本的支持。 2.serverDatabase为服务器端的数据文件. 若使用现有数据,可用帐号:1, 密码

//started from ServerControlGUI to deal with clients
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class ClientGUI extends WindowAdapter implements Runnable,ActionListener,ListSelectionListener/**/{
	private JFrame frame;
	private JFormattedTextField idField;
	private JLabel statusLabel;
	private static JLabel totalNumLabel,onlineNumLabel;
	private JScrollPane scrollPane;
	private JTable table;
	private boolean isMultiRowSelected=false;
	private int[] rows;
	private final static String SEARCH="search";
	private final static String DEL="del";
	private final static String VIEWALL="all";
	private final static String ONLINE="online";
	private final static String FRIEND="friend";
	private final static String EXIT="exit";
	
	public void run(){
		frame.setDefaultLookAndFeelDecorated(true);
		frame=new JFrame("Client Management");
		frame.addWindowListener(this);
		frame.setContentPane(makeMainPane());
		//frame.setResizable(false);
		frame.pack();
		frame.setLocationRelativeTo(null);
		frame.setVisible(true);
	}
	
	public void actionPerformed(ActionEvent ae){
		String type=ae.getActionCommand();
		if(type.equals(SEARCH)){
			int clientID=Integer.parseInt(idField.getText());
			if(!checkIDField(clientID))
				return;
			statusLabel.setText("Information of ID:"+idField.getText());
			statusLabel.setForeground(Color.BLACK);
			SearchClientTableModel.initiate(clientID);
			table.setModel(new SearchClientTableModel());
			SearchClientTableModel.setTableWidth(table);
			scrollPane.setPreferredSize(new Dimension(table.getPreferredSize().width,200));
		}
		else if(type.equals(DEL)){
			if(isMultiRowSelected){  //maybe adm wants to del more than one clients
				int choice=JOptionPane.showConfirmDialog(frame,
						"Are you sure to delete ALL these clients?",
						"Delete Confirm",
						JOptionPane.YES_NO_OPTION);
				if(choice==1)   //do not want to del
					return;
				for(int k=0;k<rows.length;k++){
					long id=((Long)table.getValueAt(rows[k],0)).longValue();
					Server.getServerDatabase().delClient(id); //del it from database
				}
			}
			else{
				int clientID=Integer.parseInt(idField.getText());
				if(!checkIDField(clientID))
					return;
				//0:yes  1:no
				int choice=JOptionPane.showConfirmDialog(frame,
						"Are you sure to delete this client, ID:"+idField.getText()+"?",
						"Delete Confirm",
						JOptionPane.YES_NO_OPTION);
				//System.out.println("m type"+choice);
				if(choice==1)   //do not want to del
					return;
				//table.setModel(new DefaultTableModel()); //clear content of the table
				Server.getServerDatabase().delClient(clientID); //del it from database
			}
			
			//to update info(rebuild the table)			
			ServerControlGUI.resetNumber();
			resetNumber();			
			int registeredNumber=(int)Server.getServerDatabase().getRegisteredClient();
			if(registeredNumber==0){
				table.setModel(new DefaultTableModel());
				statusLabel.setText("No registered client!");
				statusLabel.setForeground(Color.RED);
			}
			else{
				AllClientTableModel.initiate(registeredNumber);
				table.setModel(new AllClientTableModel());
				AllClientTableModel.setTableWidth(table);
				statusLabel.setText("All Registered Clients' Information:");
				statusLabel.setForeground(Color.BLACK);
				//scrollPane.setPreferredSize(new Dimension(table.getPreferredSize().width,200));
			}
		}
		
		else if(type.equals(VIEWALL)){
			int registeredNumber=(int)Server.getServerDatabase().getRegisteredClient();
			if(registeredNumber==0){
				statusLabel.setText("No registered client!");
				statusLabel.setForeground(Color.RED);
				table.setModel(new DefaultTableModel());
				return;
			}
			statusLabel.setText("All Registered Clients' Information:");
			statusLabel.setForeground(Color.BLACK);
			AllClientTableModel.initiate(registeredNumber);
			table.setModel(new AllClientTableModel());
			AllClientTableModel.setTableWidth(table);
			scrollPane.setPreferredSize(new Dimension(table.getPreferredSize().width,200));
		}
		
		else if(type.equals(ONLINE)){
			int onlineNum=(int)Server.getServerDatabase().getOnlineClient();
			if(onlineNum==0){ //if no client online
				statusLabel.setText("No client online!");
				statusLabel.setForeground(Color.RED);
				table.setModel(new DefaultTableModel());
				return;
			}
			statusLabel.setText("Online Clients' Information");
			statusLabel.setForeground(Color.BLACK);
			OnlineClientTableModel.initiate(onlineNum,(LinkedList<Long>)
					Server.getServerDatabase().getOnlineClientsList());
			//System.out.println("online:"+Server.getServerDatabase().getOnlineClientsList());
			table.setModel(new OnlineClientTableModel());
			OnlineClientTableModel.setTableWidth(table);
			scrollPane.setPreferredSize(new Dimension(table.getPreferredSize().width,200));
		}
		
		else if(type.equals(FRIEND)){
			int clientID=Integer.parseInt(idField.getText());
			int friendNum;
			if(!checkIDField(clientID))
				return;
			friendNum=Server.getServerDatabase().findClient(clientID).getFriends().size();
			if(friendNum==0){			//if have no friend
				statusLabel.setText("ID: "+idField.getText()+" has no friend!");
				statusLabel.setForeground(Color.RED);
				table.setModel(new DefaultTableModel());
				return;
			}
			statusLabel.setText("ID:"+idField.getText()+" friends' information");
			statusLabel.setForeground(Color.BLACK);
			if(ClientFriendTableModel.initiate(friendNum,clientID,
					(LinkedList<Long>)Server.getServerDatabase().findClient(clientID).getFriends())){
				table.setModel(new ClientFriendTableModel());
				ClientFriendTableModel.setTableWidth(table);
				scrollPane.setPreferredSize(new Dimension(table.getPreferredSize().width,200));
			}
			else{
				statusLabel.setText("ID: "+idField.getText()+" has no friend!");
				statusLabel.setForeground(Color.RED);
				table.setModel(new DefaultTableModel());
			}
		}
		
		else{
			frame.dispose();
			ServerControlGUI.clientGUIExit();
		}
	}
	
	public void valueChanged(ListSelectionEvent lse){
		//System.out.println("valueChanged is called");
		int index=0; //index of the id column
		rows=table.getSelectedRows();
		if(rows.length==1){  //only one row is selected,row-count starts at 0
			for(int i=0;i<table.getColumnCount();i++){  //because the columns are repositionable
				if("ID".endsWith(table.getColumnName(i))){
					index=i;
					break;
				}
			}
			Long id=(Long)table.getValueAt(rows[0],index);
			idField.setText(id.toString());
			isMultiRowSelected=false;
		}
		else if(rows.length>1){
			isMultiRowSelected=true;
		}
	}
	
	public void windowClosing(WindowEvent we){
		ServerControlGUI.clientGUIExit();
	}
	
	private Container makeMainPane(){
		Container original=new JPanel();
		original.setLayout(new BoxLayout(original,BoxLayout.Y_AXIS));

		JPanel clientNumPane=new JPanel(new GridLayout(2,1));  //display registered and online client num
		totalNumLabel=new JLabel("Registered Client Number:"+Server.getServerDatabase().getRegisteredClient());
		totalNumLabel.setHorizontalAlignment(SwingConstants.CENTER);
		totalNumLabel.setToolTipText("This number will not update dynamically," +
				"restart this modul for the latest infomation");
		clientNumPane.add(totalNumLabel);
		onlineNumLabel=new JLabel("Online Client Number:"+Server.getServerDatabase().getOnlineClient());
		onlineNumLabel.setHorizontalAlignment(SwingConstants.CENTER);
		onlineNumLabel.setToolTipText("This number will not update dynamically," +
				"restart this modul for the latest infomation");
		clientNumPane.add(onlineNumLabel);
		
		//to input client id to search
		JPanel inputPane=new JPanel(new GridLayout(1,2));
		JLabel header=new JLabel("Client's ID:");
		idField=new JFormattedTextField();
		idField.setValue(new Long(0));
		inputPane.add(header);
		inputPane.add(idField);
		
		JPanel statusPane=new JPanel();
		statusLabel=new JLabel("All Registered Clients' Information:");
		statusLabel.setHorizontalAlignment(SwingConstants.CENTER);
		statusPane.add(statusLabel);
		
		//setup buttons
		JPanel buttonPane=new JPanel();
		buttonPane.setLayout(new GridLayout(1,6));
		JButton button;
		button=new JButton("Search");  //search button
		button.setMnemonic(KeyEvent.VK_S);
		button.setToolTipText("To search a client information.");
		button.setActionCommand(SEARCH);
		button.addActionListener(this);
		buttonPane.add(button);
		//button.add(Box.createHorizontalStrut(5));
		//button.add(Box.createHorizontalGlue());
		button=new JButton("Delete");  //del button
		button.setMnemonic(KeyEvent.VK_D);
		button.setToolTipText("To delete client(s) from database");
		button.setActionCommand(DEL);
		button.addActionListener(this);
		buttonPane.add(button);
		//button.add(Box.createHorizontalStrut(5));
		//button.add(Box.createHorizontalGlue());
		button=new JButton("View All");  //view-all button
		button.setMnemonic(KeyEvent.VK_A);
		button.setToolTipText("To view all registered clients.");
		button.setActionCommand(VIEWALL);
		button.addActionListener(this);
		buttonPane.add(button);
		//button.add(Box.createHorizontalStrut(5));
		//button.add(Box.createHorizontalGlue());
		button=new JButton("View Online"); //view-online button
		button.setMnemonic(KeyEvent.VK_O);
		button.setToolTipText("To view all online clients");
		button.setActionCommand(ONLINE);
		button.addActionListener(this);
		buttonPane.add(button);
		button=new JButton("View Friend"); //view-friend button
		button.setMnemonic(KeyEvent.VK_F);
		button.setToolTipText("To view a clients' friends.");
		button.setActionCommand(FRIEND);
		button.addActionListener(this);
		buttonPane.add(button);
		button=new JButton("Exit");   //exit buton
		button.setMnemonic(KeyEvent.VK_E);
		button.setActionCommand(EXIT);
		button.addActionListener(this);
		buttonPane.add(button);
		
		int registeredNumber=(int)Server.getServerDatabase().getRegisteredClient();
		if(registeredNumber==0){
			statusLabel.setText("No registered client!");
			statusLabel.setForeground(Color.RED);
			table=new JTable(new DefaultTableModel());
			//table.setDragEnabled(false);
		}
		else{
			AllClientTableModel.initiate(registeredNumber); //set first
			table=new JTable(new AllClientTableModel());
			//table.setDragEnabled(false);
			//setupFriendColumn(table,table.getColumnModel().getColumn(9)); //to make Friend-ID column combobox
			//table=new JTable();
			//scrollPane=new JScrollPane();
			//scrollPane=new JScrollPane(table,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
					//JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
				
			AllClientTableModel.setTableWidth(table);
			//scrollPane.setPreferredSize(new Dimension(table.getPreferredSize().width,200));			
		}
		//table.setSelectionMode(JTable)
		table.getSelectionModel().addListSelectionListener(this);
		//scrollPane=new JScrollPane();
		scrollPane=new JScrollPane(table,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
				JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
		scrollPane.setPreferredSize(new Dimension(table.getPreferredSize().width,200));
		
		original.add(clientNumPane);
		original.add(inputPane);
		original.add(buttonPane);
		original.add(statusPane);
		original.add(Box.createVerticalGlue());
		original.add(scrollPane);
		return original;
	}
	
	private boolean checkIDField(int clientID){
		if(clientID<=0){  			//if id is negative
			statusLabel.setText("ID: "+idField.getText()+"  is not valid");
			statusLabel.setForeground(Color.RED);
			table.setModel(new DefaultTableModel());
			return false;
		}
		if(!Server.getServerDatabase().contains(clientID)) { //if id dosen't exist
			statusLabel.setText("ID: "+idField.getText()+"  doesn't exsit!");
			statusLabel.setForeground(Color.RED);
			table.setModel(new DefaultTableModel());
			return false;
		}
		return true;
	}
	
	synchronized static void resetNumber(){
		totalNumLabel.setText("Registered Client Number:"+Server.getServerDatabase().getRegisteredClient());
		onlineNumLabel.setText("Online Client Number:"+Server.getServerDatabase().getOnlineClient());
	}
}