001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 * 
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 * 
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.log4j.chainsaw;
018
019import java.awt.event.ActionEvent;
020import javax.swing.AbstractAction;
021import org.apache.log4j.Logger;
022
023/**
024 * Encapsulates the action to exit.
025 *
026 * @author <a href="mailto:oliver@puppycrawl.com">Oliver Burn</a>
027 * @version 1.0
028 */
029class ExitAction
030    extends AbstractAction
031{
032    /** use to log messages **/
033    private static final Logger LOG = Logger.getLogger(ExitAction.class);
034    /** The instance to share **/
035    public static final ExitAction INSTANCE = new ExitAction();
036
037    /** Stop people creating instances **/
038    private ExitAction() {}
039
040    /**
041     * Will shutdown the application.
042     * @param aIgnore ignored
043     */
044    public void actionPerformed(ActionEvent aIgnore) {
045        LOG.info("shutting down");
046        System.exit(0);
047    }
048}