    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/ogcwebservices/csw/CSWFactory.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.csw;
    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.InvalidConfigurationException;
    045    import org.deegree.ogcwebservices.OGCWebServiceException;
    046    import org.deegree.ogcwebservices.csw.configuration.CatalogueConfiguration;
    047    import org.xml.sax.SAXException;
    048
    049    /**
    050     * Service factory to create a catalog service.
    051     *
    052     * @author <a href="mailto:tfr@users.sourceforge.net">Torsten Friebe </a>
    053     * @author <a href="mailto:mschneider@lat-lon.de">Markus Schneider </a>
    054     *
    055     * @author last edited by: $Author: mschneider $
    056     *
    057     * @version 2.0, $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    058     *
    059     * @todo all instances of the service should be pooled.
    060     */
    061
    062    public final class CSWFactory {
    063
    064        private static CatalogueConfiguration CONFIG;
    065
    066        private static final ILogger LOG = LoggerFactory.getLogger( CSWFactory.class );
    067
    068        // @todo the factory has a pool of service instances
    069
    070        /**
    071         * Hidden constructur
    072         *
    073         */
    074        private CSWFactory() {
    075            // nothing to do
    076        }
    077
    078        /**
    079         * must be synchronized
    080         *
    081         * @param catalogConfiguration
    082         *
    083         */
    084        public synchronized static void setConfiguration( CatalogueConfiguration catalogConfiguration ) {
    085            CONFIG = catalogConfiguration;
    086
    087            // if service instance are already created
    088            // destroy all instances
    089            // create new service instances and put in pool
    090
    091            LOG.logInfo( CONFIG.getServiceIdentification().getServiceType().getCode() + " (" + CONFIG.getVersion()
    092                         + ") service pool initialized." );
    093
    094        }
    095
    096        /**
    097         * @param serviceConfigurationUrl
    098         * @throws InvalidConfigurationException
    099         */
    100        public synchronized static void setConfiguration( URL serviceConfigurationUrl )
    101                                throws InvalidConfigurationException {
    102            try {
    103                CSWFactory.setConfiguration( CatalogueConfiguration.createConfiguration( serviceConfigurationUrl ) );
    104            } catch ( IOException e ) {
    105                LOG.logError( e.getMessage(), e );
    106                throw new InvalidConfigurationException( "CSWFactory", e.getMessage() );
    107            } catch ( SAXException e ) {
    108                LOG.logError( e.getMessage(), e );
    109                throw new InvalidConfigurationException( "CSWFactory", e.getMessage() );
    110            }
    111
    112        }
    113
    114        /**
    115         *
    116         * @return a new service
    117         * @throws OGCWebServiceException
    118         *
    119         * @TODO
    120         */
    121        public synchronized static CatalogueService getService()
    122                                throws OGCWebServiceException {
    123            if ( CONFIG == null ) {
    124                throw new OGCWebServiceException( CSWFactory.class.getName(), "CSW has no configuration" );
    125            }
    126            // get an instance of the service from the pool
    127            return CatalogueService.create( CONFIG ); // @TODO get instance from pool
    128        }
    129
    130        /**
    131         * @param config
    132         * @return a new service
    133         * @throws OGCWebServiceException
    134         */
    135        public synchronized static CatalogueService getUncachedService( CatalogueConfiguration config )
    136                                throws OGCWebServiceException {
    137            return CatalogueService.create( config );
    138        }
    139
    140        /**
    141         *
    142         */
    143        public static void reset() {
    144            // stop all service instances
    145            // clear pool
    146        }
    147
    148    }