001    package org.apache.fulcrum.yaafi.service.shutdown;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    import org.apache.avalon.framework.activity.Disposable;
023    
024    /**
025     * This class process the shutdown notification from the JVM.
026     *
027     * @author <a href="mailto:siegfried.goeschl@it20one.at">Siegfried Goeschl</a>
028     */
029    
030    public class Shutdown implements Runnable
031    {
032        /** The service manager tobe disposed */
033        private Disposable disposable;
034    
035        /** use System.exit() to shutdown the JVM */
036        private boolean useSystemExit;
037    
038        /**
039         * Constructor.
040         * @param disposable the instance to be disposed
041         * @param useSystemExit call System.exit()?
042         *
043         */
044        public Shutdown( Disposable disposable, boolean useSystemExit )
045        {
046            this.disposable = disposable;
047            this.useSystemExit = useSystemExit;
048        }
049    
050        /**
051         * @see java.lang.Runnable#run()
052         */
053        public void run()
054        {
055            try
056            {
057                this.disposable.dispose();
058            }
059            catch (Throwable t)
060            {
061                t.printStackTrace();
062            }
063    
064            this.disposable = null;
065    
066            if( this.useSystemExit )
067            {
068                System.exit(0);
069            }
070        }
071    }