001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/io/gpx/GPXReader.java $
002    /*----------------------------------------------------------------------------
003     This file is part of deegree, http://deegree.org/
004     Copyright (C) 2001-2009 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    
037    package org.deegree.io.gpx;
038    
039    import static org.deegree.framework.log.LoggerFactory.getLogger;
040    
041    import java.io.InputStream;
042    
043    import javax.xml.transform.Transformer;
044    import javax.xml.transform.TransformerConfigurationException;
045    import javax.xml.transform.TransformerException;
046    import javax.xml.transform.TransformerFactory;
047    import javax.xml.transform.dom.DOMResult;
048    import javax.xml.transform.stream.StreamSource;
049    
050    import org.deegree.framework.log.ILogger;
051    import org.deegree.framework.xml.XMLParsingException;
052    import org.deegree.model.feature.FeatureCollection;
053    import org.deegree.model.feature.GMLFeatureCollectionDocument;
054    import org.w3c.dom.Document;
055    
056    /**
057     * <code>GPXReader</code> is a VERY basic reader for .gpx files. The files are transformed via xslt to a gml feature
058     * collection.
059     *
060     * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
061     * @author last edited by: $Author: mschneider $
062     *
063     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
064     */
065    public class GPXReader {
066    
067        private static final ILogger LOG = getLogger( GPXReader.class );
068    
069        private static TransformerFactory factory = TransformerFactory.newInstance();
070    
071        /**
072         * @param in
073         * @return the resulting collection
074         */
075        public static FeatureCollection read( InputStream in ) {
076            try {
077                Transformer t = factory.newTransformer( new StreamSource( GPXReader.class.getResourceAsStream( "tofc.xsl" ) ) );
078                DOMResult target = new DOMResult();
079                t.transform( new StreamSource( in ), target );
080                GMLFeatureCollectionDocument doc = new GMLFeatureCollectionDocument();
081                doc.setRootElement( ( (Document) target.getNode() ).getDocumentElement() );
082                return doc.parse();
083            } catch ( TransformerConfigurationException e ) {
084                LOG.logError( "Unknown error", e );
085            } catch ( TransformerException e ) {
086                LOG.logError( "Unknown error", e );
087            } catch ( XMLParsingException e ) {
088                LOG.logError( "Unknown error", e );
089            }
090            return null;
091        }
092    
093    }