001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/framework/util/LoggingInterceptor.java $
002    //$Id: LoggingInterceptor.java 18195 2009-06-18 15:55:39Z mschneider $
003    /*----------------------------------------------------------------------------
004     This file is part of deegree, http://deegree.org/
005     Copyright (C) 2001-2009 by:
006       Department of Geography, University of Bonn
007     and
008       lat/lon GmbH
009    
010     This library is free software; you can redistribute it and/or modify it under
011     the terms of the GNU Lesser General Public License as published by the Free
012     Software Foundation; either version 2.1 of the License, or (at your option)
013     any later version.
014     This library is distributed in the hope that it will be useful, but WITHOUT
015     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
016     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
017     details.
018     You should have received a copy of the GNU Lesser General Public License
019     along with this library; if not, write to the Free Software Foundation, Inc.,
020     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
021    
022     Contact information:
023    
024     lat/lon GmbH
025     Aennchenstr. 19, 53177 Bonn
026     Germany
027     http://lat-lon.de/
028    
029     Department of Geography, University of Bonn
030     Prof. Dr. Klaus Greve
031     Postfach 1147, 53001 Bonn
032     Germany
033     http://www.geographie.uni-bonn.de/deegree/
034    
035     e-mail: info@deegree.org
036    ----------------------------------------------------------------------------*/
037    
038    package org.deegree.framework.util;
039    
040    import java.lang.reflect.InvocationTargetException;
041    import java.lang.reflect.Method;
042    
043    /**
044     * Logging interceptor to log the entering and exiting of a method call.
045     *
046     * @author <a href="mailto:tfr@users.sourceforge.net">Torsten Friebe </A>
047     *
048     * @author last edited by: $Author: mschneider $
049     *
050     * @version 2.0, $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
051     *
052     * @see <a href="http://www.dofactory.com/patterns/PatternChain.aspx">Chain of Responsibility Design
053     *      Pattern </a>
054     *
055     * @since 2.0
056     */
057    public class LoggingInterceptor extends Interceptor {
058    
059        /**
060         * @param nextInterceptor pointing to the next intersection
061         */
062        public LoggingInterceptor( Interceptor nextInterceptor ) {
063            this.nextInterceptor = nextInterceptor;
064        }
065    
066        @Override
067        protected Object handleInvocation( Method method, Object[] params )
068                                throws IllegalAccessException, InvocationTargetException {
069            LOG.logDebug( ">Invoke " + method.getName() + " on " + getTarget() );
070            Object result = nextInterceptor.handleInvocation( method, params );
071            LOG.logDebug( "<Finish " + method.getName() + " on " + getTarget() );
072            return result;
073        }
074    
075    }