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Spring Framework example source code file (Log4jConfigListener.java)

This example Spring Framework source code file (Log4jConfigListener.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

log4jconfiglistener, log4jconfiglistener, servlet, servletcontextlistener, servletcontextlistener

The Spring Framework Log4jConfigListener.java source code

/*
 * Copyright 2002-2008 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 {@link Log4jWebConfigurer} (see its javadoc for configuration details).
 *
 * <b>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 <code>java.util.logging (which is global too).
 *
 * <p>This listener should be registered before ContextLoaderListener in web.xml
 * when using custom log4j initialization.
 *
 * @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());
	}

}

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