001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/portal/standard/sos/configuration/SOSClientConfiguration.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    package org.deegree.portal.standard.sos.configuration;
037    
038    import java.io.InputStreamReader;
039    import java.net.URL;
040    import java.util.HashMap;
041    
042    /**
043     * enables access to the configuration parameters of the sos client. Mainly these are the names and addresses of the
044     * sensor observation services to be called
045     *
046     * @author <a href="mailto:che@wupperverband.de.de">Christian Heier</a>
047     * @author last edited by: $Author: mays$
048     *
049     * @version $Revision: 18195 $, $Date: 28.05.2008 17:06:48$
050     */
051    public class SOSClientConfiguration {
052    
053        private static SOSClientConfiguration conf = null;
054    
055        private HashMap<String, URL> sosResources = null;
056    
057        /**
058         * Creates a new SOSClientConfiguration object.
059         *
060         * @param sosResources
061         */
062        SOSClientConfiguration( HashMap<String, URL> sosResources ) {
063            this.sosResources = sosResources;
064        }
065    
066        /**
067         *
068         *
069         * @param confURL
070         *
071         * @return SOSClientConfiguration instance
072         *
073         * @throws Exception
074         */
075        public synchronized static SOSClientConfiguration getInstance( URL confURL )
076                                throws Exception {
077            InputStreamReader isr = new InputStreamReader( confURL.openStream() );
078            conf = ConfigurationFactory.createConfiguration( isr );
079            isr.close();
080    
081            return conf;
082        }
083    
084        /**
085         *
086         *
087         * @return SOSClientConfiguration instance
088         */
089        public static SOSClientConfiguration getInstance() {
090            if ( conf == null ) {
091                conf = new SOSClientConfiguration( new HashMap<String, URL>() );
092            }
093    
094            return conf;
095        }
096    
097        /**
098         *
099         * @param sos
100         * @return returns the address of the submitted sensor observation service
101         */
102        public URL getSOSAddress( String sos ) {
103            return this.sosResources.get( sos );
104        }
105    
106        /**
107         *
108         * @return returns the names of the sensor observation services known by the client
109         */
110        public String[] getSOSNames() {
111            return sosResources.keySet().toArray( new String[sosResources.size()] );
112        }
113    }