org.springframework.web.util.Log4jConfigListener Maven / Gradle / Ivy
/*
* Copyright 2002-2005 the original author or authors.
*
* 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.web.util;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
/**
* Bootstrap listener for custom Log4J initialization in a web environment.
* Delegates to Log4jWebConfigurer (see its javadoc for configuration details).
*
* WARNING: Assumes an expanded WAR file, both for loading the configuration
* file and for writing the log files. If you want to keep your WAR unexpanded or
* don't need application-specific log files within the WAR directory, don't use
* Log4J setup within the application (thus, don't use Log4jConfigListener or
* Log4jConfigServlet). Instead, use a global, VM-wide Log4J setup (for example,
* in JBoss) or JDK 1.4's java.util.logging (which is global too).
*
* This listener should be registered before ContextLoaderListener in web.xml,
* when using custom Log4J initialization.
*
*
For Servlet 2.2 containers and Servlet 2.3 ones that do not
* initalize listeners before servlets, use Log4jConfigServlet.
* See the ContextLoaderServlet javadoc for details.
*
* @author Juergen Hoeller
* @since 13.03.2003
* @see Log4jWebConfigurer
* @see Log4jConfigServlet
* @see org.springframework.web.context.ContextLoaderListener
* @see org.springframework.web.context.ContextLoaderServlet
* @see WebAppRootListener
*/
public class Log4jConfigListener implements ServletContextListener {
public void contextInitialized(ServletContextEvent event) {
Log4jWebConfigurer.initLogging(event.getServletContext());
}
public void contextDestroyed(ServletContextEvent event) {
Log4jWebConfigurer.shutdownLogging(event.getServletContext());
}
}