1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.log4j.chainsaw;
18
19 import java.awt.event.ActionEvent;
20 import javax.swing.AbstractAction;
21 import org.apache.log4j.Logger;
22
23 /**
24 * Encapsulates the action to exit.
25 *
26 * @author <a href="mailto:oliver@puppycrawl.com">Oliver Burn</a>
27 * @version 1.0
28 */
29 class ExitAction
30 extends AbstractAction
31 {
32 /** use to log messages **/
33 private static final Logger LOG = Logger.getLogger(ExitAction.class);
34 /** The instance to share **/
35 public static final ExitAction INSTANCE = new ExitAction();
36
37 /** Stop people creating instances **/
38 private ExitAction() {}
39
40 /**
41 * Will shutdown the application.
42 * @param aIgnore ignored
43 */
44 public void actionPerformed(ActionEvent aIgnore) {
45 LOG.info("shutting down");
46 System.exit(0);
47 }
48 }