001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/graphics/LazyRasterLayer.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 package org.deegree.graphics;
037
038 import java.io.IOException;
039 import java.util.ArrayList;
040 import java.util.List;
041
042 import org.deegree.framework.log.ILogger;
043 import org.deegree.framework.log.LoggerFactory;
044 import org.deegree.io.JDBCConnection;
045 import org.deegree.io.oraclegeoraster.GeoRasterDescription;
046 import org.deegree.model.coverage.grid.Format;
047 import org.deegree.model.coverage.grid.GridCoverage;
048 import org.deegree.model.coverage.grid.GridCoverageExchange;
049 import org.deegree.model.coverage.grid.GridCoverageReader;
050 import org.deegree.model.crs.CRSFactory;
051 import org.deegree.model.crs.CoordinateSystem;
052 import org.deegree.model.crs.UnknownCRSException;
053 import org.deegree.model.spatialschema.Envelope;
054 import org.deegree.model.spatialschema.GeometryFactory;
055 import org.deegree.ogcwebservices.InvalidParameterValueException;
056 import org.deegree.ogcwebservices.wcs.configuration.Directory;
057 import org.deegree.ogcwebservices.wcs.configuration.DirectoryResolution;
058 import org.deegree.ogcwebservices.wcs.configuration.Extension;
059 import org.deegree.ogcwebservices.wcs.configuration.File;
060 import org.deegree.ogcwebservices.wcs.configuration.FileResolution;
061 import org.deegree.ogcwebservices.wcs.configuration.OracleGeoRasterResolution;
062 import org.deegree.ogcwebservices.wcs.configuration.Resolution;
063 import org.deegree.ogcwebservices.wcs.configuration.Shape;
064 import org.deegree.ogcwebservices.wcs.configuration.ShapeResolution;
065 import org.deegree.ogcwebservices.wcs.describecoverage.CoverageOffering;
066
067 /**
068 *
069 *
070 *
071 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
072 * @author last edited by: $Author: mschneider $
073 *
074 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
075 */
076 public class LazyRasterLayer extends AbstractLayer {
077
078 private ILogger LOG = LoggerFactory.getLogger( LazyRasterLayer.class );
079
080 private Extension resource;
081
082 private CoverageOffering coverageOffering;
083
084 /**
085 *
086 * @param name
087 * @param coverageOffering
088 * @throws Exception
089 */
090 public LazyRasterLayer( String name, CoverageOffering coverageOffering ) throws Exception {
091 super( name );
092 this.coverageOffering = coverageOffering;
093 resource = coverageOffering.getExtension();
094 }
095
096 /**
097 *
098 * @param name
099 * @param crs
100 * @param coverageOffering
101 * @throws Exception
102 */
103 public LazyRasterLayer( String name, CoordinateSystem crs, CoverageOffering coverageOffering ) throws Exception {
104 super( name, crs );
105 this.coverageOffering = coverageOffering;
106 if ( coverageOffering != null ) {
107 resource = coverageOffering.getExtension();
108 }
109 }
110
111 /**
112 * @param crs
113 * @throws Exception
114 *
115 */
116 public void setCoordinatesSystem( CoordinateSystem crs )
117 throws Exception {
118 // not supported yet
119 }
120
121 /*
122 * (non-Javadoc)
123 *
124 * @see org.deegree.graphics.AbstractLayer#getBoundingBox()
125 */
126 @Override
127 public Envelope getBoundingBox() {
128 return coverageOffering.getDomainSet().getSpatialDomain().getEnvelops()[0];
129 }
130
131 /**
132 *
133 * @param envelope
134 * @param resolution
135 * @return grid coverage for envelope and resolution
136 * @throws IOException
137 * @throws InvalidParameterValueException
138 */
139 public GridCoverage getRaster( Envelope envelope, double resolution )
140 throws InvalidParameterValueException, IOException {
141
142 Resolution[] resolutions = resource.getResolutions( resolution );
143
144 String nativeCRS = coverageOffering.getSupportedCRSs().getNativeSRSs()[0].getCodes()[0];
145 CoordinateSystem crs;
146 try {
147 crs = CRSFactory.create( nativeCRS );
148 } catch ( UnknownCRSException e ) {
149 throw new InvalidParameterValueException( e );
150 }
151 envelope = GeometryFactory.createEnvelope( envelope.getMin(), envelope.getMax(), crs );
152
153 GridCoverageReader reader = null;
154 if ( resolutions[0] instanceof FileResolution ) {
155 reader = getFileReader( resolutions, envelope );
156 } else if ( resolutions[0] instanceof ShapeResolution ) {
157 reader = getShapeReader( resolutions, envelope );
158 } else if ( resolutions[0] instanceof DirectoryResolution ) {
159 reader = getDirectoryReader( resolutions, envelope );
160 } else if ( resolutions[0] instanceof OracleGeoRasterResolution ) {
161 reader = getOracleGeoRasterReader( resolutions, envelope );
162 } else {
163 throw new InvalidParameterValueException( "not supported coverage resolution: "
164 + resolutions[0].getClass().getName() );
165 }
166 return reader.read( null );
167 }
168
169 /**
170 *
171 * @param resolutions DirectoryResolutions
172 * @param env
173 * @return grid coverage reader for resolutions
174 * @throws IOException
175 * @throws InvalidParameterValueException
176 */
177 private GridCoverageReader getDirectoryReader( Resolution[] resolutions, Envelope env )
178 throws IOException, InvalidParameterValueException {
179
180 LOG.logInfo( "reading coverage from directories" );
181
182 Directory[] dirs = ( (DirectoryResolution) resolutions[0] ).getDirectories( env );
183
184 GridCoverageExchange gce = new GridCoverageExchange( null );
185 Format format = new Format( coverageOffering.getSupportedFormats().getNativeFormat() );
186
187 return gce.getReader( dirs, coverageOffering, env, format );
188 }
189
190 /**
191 *
192 * @param resolutions FileResolutions
193 * @param env
194 * @return grid coverage reader for resolutions
195 * @throws IOException
196 * @throws InvalidParameterValueException
197 */
198 private GridCoverageReader getFileReader( Resolution[] resolutions, Envelope env )
199 throws IOException, InvalidParameterValueException {
200
201 LOG.logInfo( "reading coverage from files" );
202
203 File[] files = ( (FileResolution) resolutions[0] ).getFiles();
204 List<File> list = new ArrayList<File>();
205 for ( int i = 0; i < files.length; i++ ) {
206 Envelope fileEnv = files[i].getEnvelope();
207 if ( fileEnv.intersects( env ) ) {
208 list.add( files[i] );
209 }
210 }
211 files = list.toArray( new File[list.size()] );
212
213 GridCoverageExchange gce = new GridCoverageExchange( null );
214 Format format = new Format( coverageOffering.getSupportedFormats().getNativeFormat() );
215
216 return gce.getReader( files, coverageOffering, env, format );
217 }
218
219 /**
220 *
221 * @param resolutions OracleGeoRasterResolution
222 * @param env
223 * @return grid coverage reader for resolutions
224 * @throws InvalidParameterValueException
225 * @throws IOException
226 */
227 private GridCoverageReader getOracleGeoRasterReader( Resolution[] resolutions, Envelope env )
228 throws InvalidParameterValueException, IOException {
229
230 LOG.logInfo( "reading coverage from oracle georaster" );
231
232 JDBCConnection jdbc = ( (OracleGeoRasterResolution) resolutions[0] ).getJDBCConnection();
233 String table = ( (OracleGeoRasterResolution) resolutions[0] ).getTable();
234 String rdtTable = ( (OracleGeoRasterResolution) resolutions[0] ).getRdtTable();
235 String column = ( (OracleGeoRasterResolution) resolutions[0] ).getColumn();
236 String identification = ( (OracleGeoRasterResolution) resolutions[0] ).getIdentification();
237 int level = ( (OracleGeoRasterResolution) resolutions[0] ).getLevel();
238 GeoRasterDescription grd = new GeoRasterDescription( jdbc, table, rdtTable, column, identification, level );
239
240 GridCoverageExchange gce = new GridCoverageExchange( null );
241 Format format = new Format( coverageOffering.getSupportedFormats().getNativeFormat() );
242
243 return gce.getReader( grd, coverageOffering, env, format );
244
245 }
246
247 /**
248 *
249 * @param resolutions ShapeResolution
250 * @param env
251 * @return grid coverage reader for resolutions
252 * @throws IOException
253 * @throws InvalidParameterValueException
254 */
255 private GridCoverageReader getShapeReader( Resolution[] resolutions, Envelope env )
256 throws IOException, InvalidParameterValueException {
257
258 LOG.logInfo( "reading coverage from shapes" );
259
260 Shape shape = ( (ShapeResolution) resolutions[0] ).getShape();
261
262 GridCoverageExchange gce = new GridCoverageExchange( null );
263 Format format = new Format( coverageOffering.getSupportedFormats().getNativeFormat() );
264 return gce.getReader( shape, coverageOffering, env, format );
265
266 }
267
268 }