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1
28 package net.sf.jguard.example.swing;
29
30 import java.awt.event.ActionEvent  ;
31 import java.awt.event.ActionListener ;
32 import java.security.Principal ;
33 import java.util.Iterator ;
34 import java.util.Set ;
35
36 import javax.security.auth.Subject ;
37 import javax.security.auth.login.LoginContext ;
38 import javax.security.auth.login.LoginException ;
39 import javax.swing.JButton ;
40 import javax.swing.JFrame ;
41 import javax.swing.JOptionPane ;
42
43 import net.sf.jguard.core.principals.UserPrincipal;
44 import net.sf.jguard.example.swing.dialog.CheckPermissionDialog;
45
46 import org.apache.log4j.Logger;
47
48
52 public class JGuardSwingExample extends JFrame {
53
54 private static final Logger logger = Logger
55 .getLogger(JGuardSwingExample.class);
56 private static final long serialVersionUID = 417348431355013808L;
57
58 private Subject loggedSubject;
59
60
61 public JGuardSwingExample(){
62 super("jGuard Swing Example");
63
64 JButton loginButton = new JButton ("Log in");
65 loginButton.addActionListener(new ActionListener (){
66 public void actionPerformed(ActionEvent event){
67 handleLogin();
68 }
69 });
70 this.getContentPane().add(loginButton);
71
72 this.pack();
73 this.setLocation(400,200);
74 this.setVisible(true);
75 }
76
77 private void handleLogin(){
78
79 LoginContext lc = null;
80 try {
81 lc = new LoginContext ("jGuardSwingExample",new SwingCallbackHandler(this));
82 lc.login();
83 } catch (LoginException e) {
84 logger.error("LoginException : "+e.getMessage());
85 return;
86 }
87 lc.getSubject().getPrincipals().add(new UserPrincipal(lc.getSubject()));
88
89
90 loggedSubject=lc.getSubject();
91 if(logger.isInfoEnabled()){
92 Set ppals=lc.getSubject().getPrincipals();
93 logger.info("user logged with "+ppals.size()+" principals");
94 Iterator itPpals=ppals.iterator();
95 while(itPpals.hasNext()){
96 Principal ppal=(Principal )itPpals.next();
97 logger.info(ppal.getName()+" "+ppal.getClass());
98 }
99 }
100
101 Set principals = lc.getSubject().getPrincipals();
102 Iterator itPrincipals = principals.iterator();
103 StringBuffer strPpal = new StringBuffer ();
104 while (itPrincipals.hasNext()){
105 strPpal.append(((Principal )itPrincipals.next()).getName()+", ");
106 }
107
108 JOptionPane.showMessageDialog(this, "You are now logged as "+ strPpal.toString(), "Logged as", JOptionPane.INFORMATION_MESSAGE);
109
110
111 new CheckPermissionDialog(this,loggedSubject);
112 }
113
114 public static void main(String args[]){
115 new JGuardSwingExample();
116 }
117
118 }
119 |
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Java API By Example, From Geeks To Geeks.