KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > prefuse > util > io > PasswordAuthenticator


1 package prefuse.util.io;
2
3 import java.net.Authenticator JavaDoc;
4 import java.net.PasswordAuthentication JavaDoc;
5
6 /**
7  * A basic username/password authenticator for use with HTTP-Auth.
8  * The username or password can be reset for subsequent use as a different
9  * user or on a different website.
10  * @author <a HREF="http://jheer.org">jeffrey heer</a>
11  */
12 public class PasswordAuthenticator extends Authenticator JavaDoc {
13
14     private String JavaDoc m_username;
15     private String JavaDoc m_password;
16     private PasswordAuthentication JavaDoc m_auth;
17     
18     /**
19      * Create a new password authenticator.
20      * @param username the user name
21      * @param password the password
22      */
23     PasswordAuthenticator(String JavaDoc username, String JavaDoc password) {
24         this.m_password = password;
25         this.m_username = username;
26     }
27     
28     /**
29      * Get the password.
30      * @return the password
31      */
32     String JavaDoc getPassword() {
33         return m_password;
34     }
35
36     /**
37      * Set the password.
38      * @return the password to use
39      */
40     void setPassword(String JavaDoc password) {
41         this.m_password = password;
42         this.m_auth = null;
43     }
44
45     /**
46      * Get the user name.
47      * @return the user name
48      */
49     String JavaDoc getUsername() {
50         return m_username;
51     }
52     
53     /**
54      * Set the user name.
55      * @return the user name to use
56      */
57     void setUsername(String JavaDoc username) {
58         this.m_username = username;
59         this.m_auth = null;
60     }
61
62     /**
63      * Get the singleton PasswordAuthentication instance.
64      * @return the PasswordAuthentication instance
65      */
66     protected PasswordAuthentication JavaDoc getPasswordAuthentication() {
67         if ( m_auth == null ) {
68             m_auth = new PasswordAuthentication JavaDoc(
69                         m_username, m_password.toCharArray());
70         }
71         return m_auth;
72     }
73
74     // ------------------------------------------------------------------------
75
76     /**
77      * Creates a new PasswordAuthenticator for the given name and password and
78      * sets it as the default Authenticator for use within Java networking.
79      */
80     public static void setAuthentication(String JavaDoc username, String JavaDoc password) {
81         Authenticator.setDefault(new PasswordAuthenticator(username,password));
82     }
83     
84 } // end of class PasswordAuthenticator
85
Popular Tags