001    //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/model/crs/CRSFactory.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     53177 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    package org.deegree.model.crs;
044    
045    import org.deegree.crs.configuration.CRSConfiguration;
046    import org.deegree.crs.configuration.CRSProvider;
047    import org.deegree.crs.exceptions.CRSConfigurationException;
048    import org.deegree.framework.log.ILogger;
049    import org.deegree.framework.log.LoggerFactory;
050    
051    /**
052     * 
053     * The <code>CRSFactory</code> class wraps the access to the CRSProvider in the org.deegree.crs package by supplying a
054     * static create method, thus encapsulating the access to the CoordinateSystems.
055     * 
056     * @author <a href="mailto:bezema@lat-lon.de">Rutger Bezema</a>
057     * 
058     * @author last edited by: $Author: rbezema $
059     * 
060     * @version $Revision: 9521 $, $Date: 2008-01-14 15:36:19 +0100 (Mo, 14 Jan 2008) $
061     * 
062     */
063    public class CRSFactory {
064    
065        private static ILogger LOG = LoggerFactory.getLogger( CRSFactory.class );
066    
067        /**
068         * e.g. epgs:4326
069         * 
070         * @param name
071         * @return a CoordinateSystem corresponding to the given name
072         * @throws UnknownCRSException
073         *             if the crs-name is not known
074         */
075        public static CoordinateSystem create( String name )
076                                                            throws UnknownCRSException {
077            CRSConfiguration crsConfig = CRSConfiguration.getCRSConfiguration();
078            CRSProvider crsProvider = crsConfig.getProvider();
079            org.deegree.crs.coordinatesystems.CoordinateSystem realCRS = null;
080            try {
081                realCRS = crsProvider.getCRSByID( name );
082            } catch ( CRSConfigurationException e ) {
083                LOG.logError( e.getMessage(), e );
084            }
085            if ( realCRS == null ) {
086                throw new UnknownCRSException( name );
087            }
088            LOG.logDebug( "Successfully created the crs with id: " + name );
089            return new CoordinateSystem( realCRS, name );
090        }
091    }