001    //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/ogcwebservices/csw/CSWFactory.java $
002    /*----------------    FILE HEADER  ------------------------------------------
003    
004     This file is part of deegree.
005     Copyright (C) 2001-2008 by:
006     EXSE, Department of Geography, University of Bonn
007     http://www.giub.uni-bonn.de/deegree/
008     lat/lon GmbH
009     http://www.lat-lon.de
010    
011     This library is free software; you can redistribute it and/or
012     modify it under the terms of the GNU Lesser General Public
013     License as published by the Free Software Foundation; either
014     version 2.1 of the License, or (at your option) any later version.
015    
016     This library is distributed in the hope that it will be useful,
017     but WITHOUT ANY WARRANTY; without even the implied warranty of
018     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
019     Lesser General Public License for more details.
020    
021     You should have received a copy of the GNU Lesser General Public
022     License along with this library; if not, write to the Free Software
023     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
024    
025     Contact:
026    
027     Andreas Poth
028     lat/lon GmbH
029     Aennchenstr. 19
030     53115 Bonn
031     Germany
032     E-Mail: poth@lat-lon.de
033    
034     Prof. Dr. Klaus Greve
035     Department of Geography
036     University of Bonn
037     Meckenheimer Allee 166
038     53115 Bonn
039     Germany
040     E-Mail: greve@giub.uni-bonn.de
041    
042     
043     ---------------------------------------------------------------------------*/
044    
045    package org.deegree.ogcwebservices.csw;
046    
047    import java.io.IOException;
048    import java.net.URL;
049    
050    import org.deegree.framework.log.ILogger;
051    import org.deegree.framework.log.LoggerFactory;
052    import org.deegree.framework.xml.InvalidConfigurationException;
053    import org.deegree.ogcwebservices.OGCWebServiceException;
054    import org.deegree.ogcwebservices.csw.configuration.CatalogueConfiguration;
055    import org.xml.sax.SAXException;
056    
057    /**
058     * Service factory to create a catalog service.
059     * 
060     * @author <a href="mailto:tfr@users.sourceforge.net">Torsten Friebe </a>
061     * @author <a href="mailto:mschneider@lat-lon.de">Markus Schneider </a>
062     * 
063     * @author last edited by: $Author: apoth $
064     * 
065     * @version 2.0, $Revision: 9345 $, $Date: 2007-12-27 17:22:25 +0100 (Do, 27 Dez 2007) $
066     * 
067     * @todo all instances of the service should be pooled.
068     * @todo Usage of {@link org.deegree.ogcwebservices.OGCServiceFaxctoy OGC service factory}
069     */
070    
071    public final class CSWFactory {
072    
073        private static CatalogueConfiguration CONFIG;
074    
075        private static final ILogger LOG = LoggerFactory.getLogger( CSWFactory.class );
076    
077        // @todo the factory has a pool of service instances
078    
079        /**
080         * Hidden constructur
081         * 
082         */
083        private CSWFactory() {
084            // nothing to do
085        }
086    
087        /**
088         * must be synchronized
089         * 
090         * @param catalogConfiguration
091         * 
092         */
093        public static void setConfiguration( CatalogueConfiguration catalogConfiguration ) {
094            CONFIG = catalogConfiguration;
095    
096            // if service instance are already created
097            // destroy all instances
098            // create new service instances and put in pool
099    
100            LOG.logInfo( CONFIG.getServiceIdentification().getServiceType().getCode() + " (" + CONFIG.getVersion()
101                         + ") service pool initialized." );
102    
103        }
104    
105        /**
106         * @param serviceConfigurationUrl
107         * @throws InvalidConfigurationException
108         */
109        public static void setConfiguration( URL serviceConfigurationUrl )
110                                throws InvalidConfigurationException {
111            try {
112                CSWFactory.setConfiguration( CatalogueConfiguration.createConfiguration( serviceConfigurationUrl ) );
113            } catch ( IOException e ) {
114                LOG.logError( e.getMessage(), e );
115                throw new InvalidConfigurationException( "CSWFactory", e.getMessage() );
116            } catch ( SAXException e ) {
117                LOG.logError( e.getMessage(), e );
118                throw new InvalidConfigurationException( "CSWFactory", e.getMessage() );
119            }
120    
121        }
122    
123        /**
124         * 
125         * @return
126         * @throws OGCWebServiceException
127         * 
128         * @TODO
129         */
130        public static CatalogueService getService()
131                                throws OGCWebServiceException {
132            if ( CONFIG == null ) {
133                throw new OGCWebServiceException( CSWFactory.class.getName(), "CSW has no configuration" );
134            }
135            // get an instance of the service from the pool
136            return CatalogueService.create( CONFIG ); // @TODO get instance from pool
137        }
138    
139        /**
140         * @param config
141         * @return
142         * @throws OGCWebServiceException
143         */
144        public static CatalogueService getUncachedService( CatalogueConfiguration config )
145                                throws OGCWebServiceException {
146            return CatalogueService.create( config );
147        }
148    
149        /**
150         * 
151         */
152        public static void reset() {
153            // stop all service instances
154            // clear pool
155        }
156    
157    }