001 /* Copyright 2006-2009 the original author or authors. 002 * 003 * Licensed under the Apache License, Version 2.0 (the "License"); 004 * you may not use this file except in compliance with the License. 005 * You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software 010 * distributed under the License is distributed on an "AS IS" BASIS, 011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 * See the License for the specific language governing permissions and 013 * limitations under the License. 014 */ 015 package org.codehaus.groovy.grails.plugins.springsecurity.facebook; 016 017 import org.springframework.security.AuthenticationException; 018 019 /** 020 * Used to tigger a redirect to the Facebook login page. 021 * 022 * @author <a href='mailto:beckwithb@studentsonly.com'>Burt Beckwith</a> 023 */ 024 public class FacebookAuthenticationRequiredException extends AuthenticationException { 025 026 private static final long serialVersionUID = -1162739729449839527L; 027 028 /** 029 * Default constructor. 030 */ 031 public FacebookAuthenticationRequiredException() { 032 super("External Authentication Required"); 033 } 034 }