001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/ogcwebservices/wpvs/WPVServiceFactory.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.ogcwebservices.wpvs;
038
039 import java.io.IOException;
040 import java.net.URL;
041
042 import org.deegree.framework.xml.InvalidConfigurationException;
043 import org.deegree.ogcwebservices.wpvs.configuration.WPVSConfiguration;
044 import org.deegree.ogcwebservices.wpvs.configuration.WPVSConfigurationDocument;
045 import org.xml.sax.SAXException;
046
047 /**
048 * Factory class for creating instances of <code>WFService</code>.
049 *
050 * @author <a href="mailto:taddei@lat-lon.de">Ugo Taddei</a>
051 * @author last edited by: $Author: mschneider $
052 *
053 * $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
054 *
055 */
056 public class WPVServiceFactory {
057
058 private static WPVSConfiguration CONFIG;
059
060 private WPVServiceFactory() {
061 // prevent instantiation
062 }
063
064 /**
065 * Creates an instance of a WPVService
066 *
067 * @return a wpvService class with the WPVSConfiguration if the WPVSConfiguration ==
068 * <code>null</code> null will be returned.
069 */
070 public static WPVService createInstance() {
071 if ( CONFIG != null )
072 return new WPVService( CONFIG );
073 return null;
074 }
075
076 /**
077 * Creates a new instance of a WPVService based on <code>config</code>
078 *
079 * @param config
080 * the configuration object used to initalize the new instance
081 * @return a new WPVService Instance, instantiated with the given WPVSConfiguration
082 */
083 public static WPVService getInstance( WPVSConfiguration config ) {
084 return new WPVService( config );
085 }
086
087 /**
088 * Sets the <code>WPVSConfiguration</code>. Afterwards, all <code>WPVSService</code>
089 * instances returned by <code>createInstance()</code> will use this configuration.
090 *
091 * @param wpvsConfiguration
092 */
093 public synchronized static void setConfiguration( WPVSConfiguration wpvsConfiguration ) {
094 CONFIG = wpvsConfiguration;
095 }
096
097 /**
098 * Sets the service configuration used in this object to be that pointed at by the
099 * serviceConfigurationURL
100 *
101 * @param serviceConfigurationURL
102 * the URL pointing at the configuration file for a WPV Service
103 * @throws InvalidConfigurationException
104 * if the configuration is invalid
105 * @throws IOException
106 */
107 public synchronized static void setConfiguration( URL serviceConfigurationURL )
108 throws InvalidConfigurationException, IOException {
109 try {
110 WPVSConfigurationDocument wpvsConfigDoc = new WPVSConfigurationDocument();
111 wpvsConfigDoc.load( serviceConfigurationURL );
112 WPVServiceFactory.setConfiguration( wpvsConfigDoc.parseConfiguration() );
113 } catch ( InvalidConfigurationException e ) {
114 throw new InvalidConfigurationException( "WPVServiceFactory", e.getMessage() );
115 } catch ( SAXException e ) {
116 throw new InvalidConfigurationException( "WPVServiceFactory", e.getMessage() );
117 }
118 }
119 }