001    //$HeadURL$
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.ogcwebservices.wms.capabilities;
038    
039    import java.io.IOException;
040    import java.net.URL;
041    
042    import org.deegree.framework.log.ILogger;
043    import org.deegree.framework.log.LoggerFactory;
044    import org.deegree.framework.xml.NamespaceContext;
045    import org.deegree.framework.xml.XMLFragment;
046    import org.deegree.framework.xml.XMLParsingException;
047    import org.deegree.framework.xml.XMLTools;
048    import org.deegree.ogcbase.CommonNamespaces;
049    import org.w3c.dom.Element;
050    import org.xml.sax.SAXException;
051    
052    /**
053     *
054     *
055     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
056     * @author last edited by: $Author: poth $
057     *
058     * @version $Revision: 6251 $, $Date: 2007-03-19 16:59:28 +0100 (Mo, 19 Mrz 2007) $
059     */
060    public class WMSCapabilitiesDocumentFactory {
061    
062        private static NamespaceContext nsContext = CommonNamespaces.getNamespaceContext();
063    
064        private static final ILogger LOG = LoggerFactory.getLogger( WMSCapabilitiesDocumentFactory.class );
065    
066        /**
067         *
068         * @param url
069         * @return loaded version depending WMSCapabilitiesDocument
070         * @throws SAXException
071         * @throws IOException
072         * @throws XMLParsingException
073         */
074        public static WMSCapabilitiesDocument getWMSCapabilitiesDocument( URL url )
075                                throws IOException, SAXException, XMLParsingException {
076            LOG.logDebug( "WMS capabilities URL: ", url );
077            XMLFragment xml = new XMLFragment( url );
078            return getWMSCapabilitiesDocument( xml.getRootElement() );
079        }
080    
081        /**
082         *
083         * @param root
084         * @return the document object
085         * @throws XMLParsingException
086         */
087        public static WMSCapabilitiesDocument getWMSCapabilitiesDocument( Element root )
088                                throws XMLParsingException {
089            WMSCapabilitiesDocument caps = null;
090            String version = XMLTools.getRequiredNodeAsString( root, "./@version", nsContext );
091            if ( "1.1.0".equals( version ) || "1.1.1".equals( version ) ) {
092                caps = new WMSCapabilitiesDocument();
093            } else if ( "1.3.0".equals( version ) || "1.3".equals( version ) ) {
094                caps = new WMSCapabilitiesDocument_1_3_0();
095            } else if ( "1.0.0".equals( version ) ) {
096                caps = new WMSCapabilitiesDocument_1_0_0();
097            } else {
098                // TODO
099                // for now WMS 1.1.1 will be use das default; a correct implementation should
100                // realize a version negotiation
101                caps = new WMSCapabilitiesDocument();
102            }
103            caps.setRootElement( root );
104            return caps;
105        }
106    
107    }