    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_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    }