/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.security.auth.callback;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
/**
* Base class for data store driven {@code CallbackHandler}
* @author YOUR_NAME
* @since Nov 1, 2011
*/
public class AbstractCallbackHandler
{
/**
* User Name that we are interested in getting the password for
*/
protected String userName;
/**
* Given the callbacks, look for {@code NameCallback}
* @param callbacks
* @return
*/
protected String getUserName(Callback[] callbacks)
{
if(userName == null)
{
for (int i = 0; i < callbacks.length; i++)
{
Callback callback = callbacks[i];
if(callback instanceof NameCallback)
{
NameCallback nc = (NameCallback) callback;
userName = nc.getName();
break;
}
}
}
return userName;
}
}