    001    //$HeadURL$
    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.model.coverage.grid.oracle;
    038
    039    import java.io.IOException;
    040    import java.lang.reflect.Constructor;
    041
    042    import org.deegree.framework.log.ILogger;
    043    import org.deegree.framework.log.LoggerFactory;
    044    import org.deegree.io.oraclegeoraster.GeoRasterDescription;
    045    import org.deegree.model.coverage.grid.Format;
    046    import org.deegree.model.coverage.grid.GCReaderAccess;
    047    import org.deegree.model.coverage.grid.GridCoverageReader;
    048    import org.deegree.model.spatialschema.Envelope;
    049    import org.deegree.ogcwebservices.wcs.describecoverage.CoverageOffering;
    050
    051    /**
    052     *
    053     *
    054     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
    055     * @author last edited by: $Author: poth $
    056     *
    057     * @version $Revision: 6251 $, $Date: 2007-03-19 16:59:28 +0100 (Mo, 19 Mrz 2007) $
    058     */
    059    public class GeoRasterReaderAccess implements GCReaderAccess {
    060
    061        private static final ILogger LOG = LoggerFactory.getLogger( GeoRasterReaderAccess.class );
    062
    063        /**
    064         * Creates a OracleGeoRasterGridCoverageReader instance from the given parameters.
    065         *
    066         * @param description
    067         * @param envelope
    068         * @param format
    069         * @return the GridCoverageReader
    070         * @throws IOException
    071         */
    072        public GridCoverageReader createGridCoverageReader( Object descriptor, CoverageOffering description,
    073                                                            Envelope envelope, Format format )
    074                                throws IOException {
    075            GeoRasterDescription grDesc = (GeoRasterDescription) descriptor;
    076            GridCoverageReader gcr = null;
    077            try {
    078                Class<?> gridCoverageReaderClass = Class.forName( "org.deegree.model.coverage.grid.oracle.OracleGeoRasterGridCoverageReader" );
    079
    080                // get constructor
    081                Class<?>[] parameterTypes = new Class[] { GeoRasterDescription.class, CoverageOffering.class,
    082                                                         Envelope.class, Format.class };
    083                Constructor<?> constructor = gridCoverageReaderClass.getConstructor( parameterTypes );
    084
    085                // call constructor
    086                Object arglist[] = new Object[] { grDesc, description, envelope, format };
    087                gcr = (GridCoverageReader) constructor.newInstance( arglist );
    088            } catch ( ClassNotFoundException e ) {
    089                LOG.logError( e.getMessage(), e );
    090                throw new IOException( "Cannot find Oracle raster library: " + e.getMessage() );
    091            } catch ( Exception e ) {
    092                LOG.logError( e.getMessage(), e );
    093                throw new IOException( e.getMessage() );
    094            }
    095            return gcr;
    096
    097        }
    098    }