/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.security.authentication;

import org.springframework.security.core.AuthenticationException;


/**
 * Thrown if an authentication request is rejected because the credentials are not sufficiently trusted.
 * <p>
 * {@link org.springframework.security.access.AccessDecisionVoter}s will typically throw this exception if
 * they are dissatisfied with the level of the authentication, such as if performed using a remember-me mechanism or
 * anonymously. The {@code ExceptionTranslationFilter} will then typically cause the {@code AuthenticationEntryPoint}
 * to be called, allowing the principal to authenticate with a stronger level of authentication.
 *
 * @author Ben Alex
 */
public class InsufficientAuthenticationException extends AuthenticationException {
    //~ Constructors ===================================================================================================

    /**
     * Constructs an <code>InsufficientAuthenticationException</code> with the
     * specified message.
     *
     * @param msg the detail message
     */
    public InsufficientAuthenticationException(String msg) {
        super(msg);
    }

    /**
     * Constructs an <code>InsufficientAuthenticationException</code> with the
     * specified message and root cause.
     *
     * @param msg the detail message
     * @param t root cause
     */
    public InsufficientAuthenticationException(String msg, Throwable t) {
        super(msg, t);
    }
}
