001    //$HeadURL: 
002    /*----------------------------------------------------------------------------
003     This file is part of deegree, http://deegree.org/
004     Copyright (C) 2001-2010 by:
005     - Department of Geography, University of Bonn -
006     and
007     - lat/lon GmbH -
008    
009     This library is free software; you can redistribute it and/or modify it under
010     the terms of the GNU Lesser General Public License as published by the Free
011     Software Foundation; either version 2.1 of the License, or (at your option)
012     any later version.
013     This library is distributed in the hope that it will be useful, but WITHOUT
014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016     details.
017     You should have received a copy of the GNU Lesser General Public License
018     along with this library; if not, write to the Free Software Foundation, Inc.,
019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020    
021     Contact information:
022    
023     lat/lon GmbH
024     Aennchenstr. 19, 53177 Bonn
025     Germany
026     http://lat-lon.de/
027    
028     Department of Geography, University of Bonn
029     Prof. Dr. Klaus Greve
030     Postfach 1147, 53001 Bonn
031     Germany
032     http://www.geographie.uni-bonn.de/deegree/
033    
034     e-mail: info@deegree.org
035     ----------------------------------------------------------------------------*/
036    package org.deegree.portal.cataloguemanager.control;
037    
038    import java.io.File;
039    import java.io.IOException;
040    import java.net.URL;
041    
042    import org.deegree.enterprise.control.ajax.AbstractListener;
043    import org.deegree.enterprise.control.ajax.WebEvent;
044    import org.deegree.framework.log.ILogger;
045    import org.deegree.framework.log.LoggerFactory;
046    import org.deegree.framework.xml.XMLFragment;
047    import org.xml.sax.SAXException;
048    
049    /**
050     * 
051     * 
052     * 
053     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
054     * @author last edited by: $Author: jwilden $
055     * 
056     * @version $Revision: 25441 $, $Date: 2010-07-20 09:01:55 +0200 (Di, 20 Jul 2010) $
057     */
058    abstract class AbstractMetadataListener extends AbstractListener {
059    
060        private static final ILogger LOG = LoggerFactory.getLogger( AbstractMetadataListener.class );
061    
062        private static final String CONFIG = "CONFIGURATION";
063    
064        public static final String SEARCHRESULTINFO = "SEARCHRESULTINFO";
065    
066        public static final String CURRENTSEARCH = "CURRENTSEARCH";
067        
068        public static final String COUNTER = "COUNTER";
069    
070        private static CatalogueManagerConfiguration config;
071    
072        /**
073         * 
074         * @param event
075         * @return configuration of the metadata editor
076         * @throws IOException
077         */
078        CatalogueManagerConfiguration getCatalogueManagerConfiguration( WebEvent event )
079                                throws IOException {
080            config = (CatalogueManagerConfiguration) event.getSession().getAttribute( CONFIG );
081            if ( config == null ) {
082                config = loadConfiguration( event );
083                event.getSession().setAttribute( CONFIG, config );
084            }
085            return config;
086        }
087    
088        private CatalogueManagerConfiguration loadConfiguration( WebEvent event )
089                                throws IOException {
090            if ( config == null ) {
091                URL url = new File( event.getAbsolutePath( "WEB-INF/conf/cataloguemanager/cataloguemanager.xml" ) ).toURI().toURL();
092                try {
093                    config = new CatalogueManagerConfiguration( url );
094                } catch ( Exception e ) {
095                    e.printStackTrace();
096                    throw new IOException( e.getMessage() );
097                }
098            }
099            return config;
100        }
101    
102        /**
103         * 
104         * @param conf
105         * @param hlevel
106         * @return metadata template for passed hierarchy level
107         * @throws IOException
108         * @throws SAXException
109         */
110        protected XMLFragment loadMetadataTemplate( CatalogueManagerConfiguration conf, String hlevel )
111                                throws IOException, SAXException {
112    
113            String tmp = conf.getTemplateURL( hlevel );
114            URL url = conf.resolve( tmp );
115            LOG.logDebug( "reading template for hierarchylevel: " + hlevel + ": ", url );
116            return new XMLFragment( url );
117        }
118    
119    }