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}