001 //$HeadURL$
002 /*---------------- FILE HEADER ------------------------------------------
003 This file is part of deegree.
004 Copyright (C) 2001-2008 by:
005 Department of Geography, University of Bonn
006 http://www.giub.uni-bonn.de/deegree/
007 lat/lon GmbH
008 http://www.lat-lon.de
009
010 This library is free software; you can redistribute it and/or
011 modify it under the terms of the GNU Lesser General Public
012 License as published by the Free Software Foundation; either
013 version 2.1 of the License, or (at your option) any later version.
014 This library is distributed in the hope that it will be useful,
015 but WITHOUT ANY WARRANTY; without even the implied warranty of
016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
017 Lesser General Public License for more details.
018 You should have received a copy of the GNU Lesser General Public
019 License along with this library; if not, write to the Free Software
020 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
021 Contact:
022
023 Andreas Poth
024 lat/lon GmbH
025 Aennchenstr. 19
026 53177 Bonn
027 Germany
028 E-Mail: poth@lat-lon.de
029
030 Prof. Dr. Klaus Greve
031 Department of Geography
032 University of Bonn
033 Meckenheimer Allee 166
034 53115 Bonn
035 Germany
036 E-Mail: greve@giub.uni-bonn.de
037 ---------------------------------------------------------------------------*/
038
039 package org.deegree.model.coverage.grid.oracle;
040
041 import java.io.IOException;
042 import java.lang.reflect.Constructor;
043
044 import org.deegree.framework.log.ILogger;
045 import org.deegree.framework.log.LoggerFactory;
046 import org.deegree.io.oraclegeoraster.GeoRasterDescription;
047 import org.deegree.model.coverage.grid.Format;
048 import org.deegree.model.coverage.grid.GCReaderAccess;
049 import org.deegree.model.coverage.grid.GridCoverageReader;
050 import org.deegree.model.spatialschema.Envelope;
051 import org.deegree.ogcwebservices.wcs.describecoverage.CoverageOffering;
052
053 /**
054 *
055 *
056 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
057 * @author last edited by: $Author: poth $
058 *
059 * @version. $Revision: 6251 $, $Date: 2007-03-19 16:59:28 +0100 (Mo, 19 Mrz 2007) $
060 */
061 public class GeoRasterReaderAccess implements GCReaderAccess {
062
063 private static final ILogger LOG = LoggerFactory.getLogger( GeoRasterReaderAccess.class );
064
065 /**
066 * Creates a OracleGeoRasterGridCoverageReader instance from the given parameters.
067 *
068 * @param grDesc
069 * @param description
070 * @param envelope
071 * @param format
072 * @return the GridCoverageReader
073 * @throws IOException
074 */
075 public GridCoverageReader createGridCoverageReader( Object descriptor, CoverageOffering description,
076 Envelope envelope, Format format )
077 throws IOException {
078 GeoRasterDescription grDesc = (GeoRasterDescription) descriptor;
079 GridCoverageReader gcr = null;
080 try {
081 Class gridCoverageReaderClass = Class.forName( "org.deegree.model.coverage.grid.oracle.OracleGeoRasterGridCoverageReader" );
082
083 // get constructor
084 Class[] parameterTypes = new Class[] { GeoRasterDescription.class, CoverageOffering.class, Envelope.class,
085 Format.class };
086 Constructor constructor = gridCoverageReaderClass.getConstructor( parameterTypes );
087
088 // call constructor
089 Object arglist[] = new Object[] { grDesc, description, envelope, format };
090 gcr = (GridCoverageReader) constructor.newInstance( arglist );
091 } catch ( ClassNotFoundException e ) {
092 LOG.logError( e.getMessage(), e );
093 throw new IOException( "Cannot find Oracle raster library: " + e.getMessage() );
094 } catch ( Exception e ) {
095 LOG.logError( e.getMessage(), e );
096 throw new IOException( e.getMessage() );
097 }
098 return gcr;
099
100 }
101 }