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    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  }