Java tutorial
/******************************************************************************* * Copyright SemanticBits, Northwestern University and Akaza Research * * Distributed under the OSI-approved BSD 3-Clause License. * See http://ncip.github.com/caaers/LICENSE.txt for details. ******************************************************************************/ /* 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 gov.nih.nci.cabig.caaers.web.security; import org.acegisecurity.event.authentication.AbstractAuthenticationEvent; import org.acegisecurity.event.authentication.AbstractAuthenticationFailureEvent; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.context.ApplicationEvent; import org.springframework.context.ApplicationListener; import org.springframework.util.ClassUtils; /** * Outputs authentication-related application events to Commons Logging. * <P> * All authentication events are logged at the warning level. * </p> * * @author Ben Alex * @version $Id: LoggerListener.java 1496 2006-05-23 13:38:33Z benalex $ */ public class LoggerListener implements ApplicationListener { // ~ Static fields/initializers // ===================================================================================== private static final Log logger = LogFactory.getLog(LoggerListener.class); // ~ Methods // ======================================================================================================== public void onApplicationEvent(ApplicationEvent event) { if (event instanceof AbstractAuthenticationEvent) { AbstractAuthenticationEvent authEvent = (AbstractAuthenticationEvent) event; if (logger.isWarnEnabled()) { String message = "Authentication event " + ClassUtils.getShortName(authEvent.getClass()) + ": " + authEvent.getAuthentication().getName() + "; details: " + authEvent.getAuthentication().getDetails(); if (event instanceof AbstractAuthenticationFailureEvent) { message = message + "; exception: " + ((AbstractAuthenticationFailureEvent) event).getException().getMessage(); } logger.warn(message); } } } }