001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/portal/standard/sos/configuration/ConfigurationFactory.java $
002    
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    package org.deegree.portal.standard.sos.configuration;
038    
039    import java.io.FileReader;
040    import java.io.IOException;
041    import java.io.Reader;
042    import java.net.MalformedURLException;
043    import java.net.URI;
044    import java.net.URL;
045    import java.util.HashMap;
046    
047    import org.deegree.framework.xml.ElementList;
048    import org.deegree.framework.xml.XMLTools;
049    import org.deegree.ogcbase.CommonNamespaces;
050    import org.w3c.dom.Document;
051    import org.w3c.dom.Element;
052    import org.w3c.dom.Node;
053    import org.xml.sax.SAXException;
054    
055    /**
056     * @author <a href="mailto:che@wupperverband.de.de">Christian Heier</a>
057     * @author last edited by: $Author: mschneider $
058     *
059     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
060     */
061    public class ConfigurationFactory {
062        private static final URI SOSNS = CommonNamespaces.buildNSURI( "http://www.deegree.org/sosclient" );
063    
064        /**
065         *
066         *
067         * @param confFile
068         *
069         * @return Configuration
070         *
071         * @throws SAXException
072         * @throws IOException
073         * @throws Exception
074         */
075        public static SOSClientConfiguration createConfiguration( String confFile )
076                                throws SAXException, IOException, Exception {
077    
078            Reader reader = new FileReader( confFile );
079            SOSClientConfiguration conf = createConfiguration( reader );
080            reader.close();
081    
082            return conf;
083        }
084    
085        /**
086         *
087         *
088         * @param reader
089         *
090         * @return SOSClientConfiguration
091         *
092         * @throws SAXException
093         * @throws IOException
094         * @throws Exception
095         */
096        public static SOSClientConfiguration createConfiguration( Reader reader )
097                                throws SAXException, IOException, Exception {
098    
099            Document doc = XMLTools.parse( reader );
100    
101            // sos descriptions
102            Element element = doc.getDocumentElement();
103            ElementList el = XMLTools.getChildElements( "sos", SOSNS, element );
104            HashMap<String, URL> sosServers = createSOSDesc( el );
105    
106            return new SOSClientConfiguration( sosServers );
107        }
108    
109        /**
110         * creates a map of sos names and associated online resources
111         */
112        private static HashMap<String, URL> createSOSDesc( ElementList nl )
113                                throws MalformedURLException {
114    
115            HashMap<String, URL> sosServers = new HashMap<String, URL>();
116    
117            for ( int i = 0; i < nl.getLength(); i++ ) {
118                Element element = nl.item( i );
119                Node node = element.getElementsByTagNameNS( SOSNS.toString(), "name" ).item( 0 );
120                String name = node.getFirstChild().getNodeValue();
121                node = element.getElementsByTagNameNS( SOSNS.toString(), "onlineResource" ).item( 0 );
122    
123                String tmp = XMLTools.getStringValue( node );
124                sosServers.put( name, new URL( tmp ) );
125            }
126    
127            return sosServers;
128        }
129    
130    }