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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.log4j.chainsaw;

import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import org.apache.log4j.Logger;

/**
 * Encapsulates the action to exit.
 *
 * @author Oliver Burn
 * @version 1.0
 */
class ExitAction
    extends AbstractAction
{
    /** use to log messages **/
    private static final Logger LOG = Logger.getLogger(ExitAction.class);
    /** The instance to share **/
    public static final ExitAction INSTANCE = new ExitAction();

    /** Stop people creating instances **/
    private ExitAction() {}

    /**
     * Will shutdown the application.
     * @param aIgnore ignored
     */
    public void actionPerformed(ActionEvent aIgnore) {
        LOG.info("shutting down");
        System.exit(0);
    }
}