administratorgui.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 adm
import javax.swing.*;
import javax.swing.table.DefaultTableModel;

import java.awt.*;
import java.awt.event.*;

public class AdministratorGUI extends WindowAdapter implements Runnable,ActionListener{
	private static Administrator currentAdm;
	private JFrame frame;
	private JLabel admNumLabel,pwLabel,statusLabel;
	private JFormattedTextField idField;
	private JPasswordField pwField;
	private JButton pwButton;
	private final static String ADD="add";
	//private final static String CONFIRM="confirm";
	private final static String DEL="del";
	private final static String REPW="repassword";
	private final static String OK="ok";
	private final static String EXIT="exit";
	private static String pw1,pw2;
	private boolean repassword=false;
	
	public AdministratorGUI(Administrator adm){
		currentAdm=adm;
	}
	
	public void run(){
		frame.setDefaultLookAndFeelDecorated(true);
		frame=new JFrame("Administrator 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();
		//System.out.println(type);
		if(type.equals(ADD)){
			statusLabel.setText("");
			pwButton.setEnabled(true);
			pwField.setEnabled(true);
			pwLabel.setText("Input a password:");
			pwLabel.setForeground(Color.RED);
		}
		else if(type.equals(OK)){
			if(repassword){  //want to repassword
				if(pw1==null){ //if enter firstly
					pw1=new String(pwField.getPassword());
					pwLabel.setText("INPUT AGAIN:");
					pwField.setText("");
					pwField.requestFocusInWindow();
					return;
				}
				else{  //enter secondly
					pw2=new String(pwField.getPassword());
					if(pw1.equals(pw2)){
						Server.getServerDatabase().findAdm(currentAdm.getID()).setPassword(pw1);
						JOptionPane.showMessageDialog(frame,"ID:"+currentAdm.getID()+
								" Password has been changed! Please secure it!",
								"Change Successfull",JOptionPane.INFORMATION_MESSAGE);
					}
					else{ //passwords aren't equal
						JOptionPane.showMessageDialog(frame,"Two passwords doesn't equal!",
								"Change failed",JOptionPane.ERROR_MESSAGE);
					}
					pwLabel.setText("");
					pwField.setText("");
					pwField.setEnabled(false);
					pwButton.setEnabled(false);
					statusLabel.setText("");
					pw1=pw2=null;
					repassword=false;
					return;
				}				
			}
			//want to add new adm
			if(pw1==null){ //if enter firstly
				pw1=new String(pwField.getPassword());
				pwLabel.setText("INPUT AGAIN:");
				pwField.setText("");
				pwField.requestFocusInWindow();				
			}
			else{  //enter secondly
				pw2=new String(pwField.getPassword());
				if(pw1.equals(pw2)){ //if passwords equal
					
					//System.out.println("id"+id);
					Server.getServerDatabase().addAdm(new Administrator(pw1));
					int id=Server.getServerDatabase().getNewAdmID();
					JOptionPane.showMessageDialog(frame,"New administrator added.  ID:"+
							Server.getServerDatabase().getNewAdmID()+
							"  Please secure your password.",
							"Add Successful",JOptionPane.INFORMATION_MESSAGE);
				}
				else{ //passwords aren't equal
					JOptionPane.showMessageDialog(frame,"Two passwords doesn't equal!",
							"Add failed",JOptionPane.ERROR_MESSAGE);
				}
				pwLabel.setText("");
				pwField.setText("");
				pwField.setEnabled(false);
				pwButton.setEnabled(false);
				statusLabel.setText("");
				resetNumber();
				pw1=pw2=null;
			}
		}
		else if(type.equals(DEL)){
			int admID=Integer.parseInt(idField.getText());
			if(!checkIDField(admID))
				return;
			int choice=JOptionPane.showConfirmDialog(frame,
					"Are you sure to delete this administrator, ID:"+idField.getText()+"?",
					"Delete Confirm",
					JOptionPane.YES_NO_OPTION);
			//System.out.println("m type"+choice);
			if(choice==1){   //do not want to del
				statusLabel.setText("");
				return;
			}
			Server.getServerDatabase().delAdm(admID);
			resetNumber();
			statusLabel.setText("");
		}
		else if(type.equals(REPW)){
			if(!repassword){
				repassword=true;
				pwLabel.setText("Input a new password:");
				pwLabel.setForeground(Color.RED);
				pwField.setEnabled(true);
				pwButton.setEnabled(true);
			}
		}
		else{
			frame.dispose();
			ServerControlGUI.admGUIExit();
		}
	}
	
	public void windowClosing(WindowEvent we){
		ServerControlGUI.admGUIExit();
	}
	
	private Container makeMainPane(){
		Container original=new JPanel();
		original.setLayout(new BoxLayout(original,BoxLayout.Y_AXIS));
		
		JPanel numPane=new JPanel(new GridLayout(3,1));
		
		JLabel currentAdmLabel;
		if(currentAdm==null)
			currentAdmLabel=new JLabel();
		else
			currentAdmLabel=new JLabel("Current Administrator's ID:"+currentAdm.getID());
		admNumLabel=new JLabel("Number of Administrators:"+Server.getServerDatabase().getAdmNum());
		admNumLabel.setHorizontalAlignment(SwingConstants.CENTER);
		currentAdmLabel.setHorizontalAlignment(SwingConstants.CENTER);
		statusLabel=new JLabel();
		numPane.add(currentAdmLabel);
		numPane.add(admNumLabel);		
		numPane.add(statusLabel);
		
		JPanel idPane=new JPanel(new GridLayout(1,2));
		JLabel idLabel=new JLabel("Administrator's ID:");
		idField=new JFormattedTextField();
		idField.setValue(new Integer(0));
		idPane.add(idLabel);
		idPane.add(idField);
		
		JPanel buttonPane=new JPanel(new GridLayout(1,4));
		JButton button=new JButton("Add New");  //button add
		button.setMnemonic(KeyEvent.VK_A);
		button.setActionCommand(ADD);
		button.addActionListener(this);
		button.setToolTipText("To add a new administrator.");
		buttonPane.add(button);
		button=new JButton("Delete");  //del button
		button.setMnemonic(KeyEvent.VK_D);
		button.setToolTipText("To delete an administrator from database.");
		button.setActionCommand(DEL);
		button.addActionListener(this);
		buttonPane.add(button);
		button=new JButton("Repassword"); //repassword button
		button.setMnemonic(KeyEvent.VK_R);
		button.setToolTipText("To change current administrator's password.");
		button.setActionCommand(REPW);
		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);
		
		JPanel pwPane=new JPanel(new GridLayout(1,3));
		pwLabel=new JLabel();
		pwField=new JPasswordField();
		pwField.setActionCommand(OK);
		pwField.addActionListener(this);
		pwField.setEchoChar('●');
		pwField.setEnabled(false);		
		pwButton=new JButton("OK");
		pwButton.setEnabled(false);
		pwButton.setActionCommand(OK);
		pwButton.addActionListener(this);
		pwPane.add(pwLabel);
		pwPane.add(pwField);
		pwPane.add(pwButton);
		
		original.add(numPane);
		original.add(idPane);
		original.add(buttonPane);
		original.add(pwPane);
		return original;
	}
	
	private boolean checkIDField(int id){
		if(id<=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().containsAdm(id)) { //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;
	}
	
	private void resetNumber(){
		//System.out.println("called");
		admNumLabel.setText("Administrator Number:"+Server.getServerDatabase().getAdmNum());
	}
}