net.sf.jguard.authentication
Class PassiveCallbackHandler

java.lang.Object
  net.sf.jguard.authentication.PassiveCallbackHandler

All Implemented Interfaces:

javax.security.auth.callback.CallbackHandler

public class PassiveCallbackHandler

extends java.lang.Object

implements javax.security.auth.callback.CallbackHandler

this class comes from the article called "all that jaas" posted on javaword.com in 2002. http://www.javaworld.com/javaworld/jw-09-2002/jw-0913-jaas.html

PassiveCallbackHandler has constructor that takes a username and password so its handle() method does not have to prompt the user for input. Useful for server-side applications.

Author:

Paul Feuer and John Musser, Charles Gay

Constructor Summary

PassiveCallbackHandler(java.lang.String user, java.lang.String pass)
Creates a callback handler with the give username and password.

Method Summary

void	clearPassword() Clears out password state.
void	handle(javax.security.auth.callback.Callback[] callbacks) Handles the specified set of Callbacks.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PassiveCallbackHandler

public PassiveCallbackHandler(java.lang.String user,
                              java.lang.String pass)

Creates a callback handler with the give username and password.

Parameters:

user -

pass -

Method Detail

handle

public void handle(javax.security.auth.callback.Callback[] callbacks)
            throws java.io.IOException,
                   javax.security.auth.callback.UnsupportedCallbackException

Handles the specified set of Callbacks. Uses the username and password that were supplied to our constructor to popluate the Callbacks. This class supports NameCallback and PasswordCallback.

Specified by:

handle in interface javax.security.auth.callback.CallbackHandler

Parameters:

callbacks - the callbacks to handle

Throws:

java.io.IOException - if an input or output error occurs.

javax.security.auth.callback.UnsupportedCallbackException - if the callback is not an instance of NameCallback or PasswordCallback

clearPassword

public void clearPassword()

Clears out password state.