/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright 2014 Pentaho Corporation. All rights reserved.
*/
package org.pentaho.platform.plugin.services.security.userrole;
import org.pentaho.platform.security.userroledao.messages.Messages;
import org.springframework.dao.DataAccessException;
import org.springframework.security.userdetails.UserDetails;
import org.springframework.security.userdetails.UserDetailsService;
import org.springframework.security.userdetails.UsernameNotFoundException;
import java.util.ArrayList;
import java.util.List;
/**
* This class contains a list of UserDetailsService objects. Requests to load UserDetails will be delegated down to the
* list in a round-robbin fashion until a match is found. This first UserDetailsService to return a match will be used.
* <p/>
* Created by nbaker on 5/13/14.
*/
public class ChainedUserDetailsService implements UserDetailsService {
private List<UserDetailsService> delegates = new ArrayList<UserDetailsService>();
public ChainedUserDetailsService( List<UserDetailsService> delegates ) {
this.delegates.addAll( delegates );
}
@Override public UserDetails loadUserByUsername( String s ) throws UsernameNotFoundException, DataAccessException {
for ( UserDetailsService delegate : delegates ) {
try {
UserDetails details = delegate.loadUserByUsername( s );
if ( details != null ) {
return details;
}
} catch ( UsernameNotFoundException ignored ) {
// ignore and continue;
}
}
throw new UsernameNotFoundException( Messages.getInstance().getString(
"UserRoleDaoUserDetailsService.ERROR_0001_USER_NOT_FOUND" ) );
}
}