001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/ogcwebservices/wpvs/WMSInvoker.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 Aennchenstraße 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
044 package org.deegree.ogcwebservices.wpvs;
045
046 import java.awt.Color;
047 import java.awt.Graphics2D;
048 import java.awt.Image;
049 import java.awt.image.BufferedImage;
050 import java.util.Map;
051
052 import org.deegree.datatypes.values.Values;
053 import org.deegree.framework.log.ILogger;
054 import org.deegree.framework.log.LoggerFactory;
055 import org.deegree.framework.util.IDGenerator;
056 import org.deegree.framework.util.StringTools;
057 import org.deegree.ogcwebservices.OGCWebService;
058 import org.deegree.ogcwebservices.OGCWebServiceException;
059 import org.deegree.ogcwebservices.wms.operation.GetMap;
060 import org.deegree.ogcwebservices.wms.operation.GetMapResult;
061 import org.deegree.ogcwebservices.wpvs.configuration.AbstractDataSource;
062 import org.deegree.ogcwebservices.wpvs.configuration.LocalWMSDataSource;
063 import org.deegree.ogcwebservices.wpvs.utils.ImageUtils;
064 import org.deegree.ogcwebservices.wpvs.utils.ResolutionStripe;
065
066 /**
067 * Invoker for a Web Map Service.
068 *
069 * @author <a href="mailto:taddei@lat-lon.de">Ugo Taddei</a>
070 * @author last edited by: $Author: apoth $
071 *
072 * $Revision: 9345 $, $Date: 2007-12-27 17:22:25 +0100 (Do, 27 Dez 2007) $
073 */
074 public class WMSInvoker extends GetViewServiceInvoker {
075
076 private static final ILogger LOG = LoggerFactory.getLogger( WMSInvoker.class );
077
078 private int id;
079
080 /**
081 * Creates a new instance of this class.
082 *
083 * @param owner
084 * the handler that owns this invoker
085 * @param id
086 * which can be used to sort all the request/responses in the resolutionStripe.
087 */
088 public WMSInvoker( ResolutionStripe owner, int id ) {
089 super( owner );
090 this.id = id;
091 }
092
093 @Override
094 public void invokeService( AbstractDataSource dataSource ) {
095 // int count = 0;
096 if ( !( dataSource != null && ( AbstractDataSource.LOCAL_WMS == dataSource.getServiceType() || AbstractDataSource.REMOTE_WMS == dataSource.getServiceType() ) ) ) {
097 LOG.logError( "The given AbstractDataSource is no LocalWMSDataSource instance. It is needed for a WMSInvoker" );
098 throw new RuntimeException( "DataSource should be a WMS-instance for a WMSInvoker" );
099 }
100 OGCWebService service = null;
101 try {
102 service = dataSource.getOGCWebService();
103 } catch ( OGCWebServiceException ogcwe ) {
104 LOG.logError( ogcwe.getMessage() );
105 throw new RuntimeException( ogcwe );
106 }
107
108 Object response = null;
109 try {
110 GetMap getMapRequest = createGetMapRequest( (LocalWMSDataSource) dataSource );
111 if ( getMapRequest == null ) {
112 return;
113 }
114 LOG.logDebug( "WMS request: " + getMapRequest );
115 /**
116 * Invoke the wms service.
117 */
118 response = service.doService( getMapRequest );
119 } catch ( OGCWebServiceException ogcwse ) {
120 if ( !Thread.currentThread().isInterrupted() ) {
121 LOG.logError( StringTools.concat( 500, "Error when performing WMS GetMap: ", ogcwse.getMessage() ) );
122 }
123 return;
124 }
125 if ( response != null ) {
126 if ( response instanceof GetMapResult ) {
127 BufferedImage responseImage = null;
128 // the exception may be inside the response
129 if ( ( (GetMapResult) response ).getException() != null ) {
130 resolutionStripe.setTextureRetrievalException( dataSource.getName().getFormattedString() + id,
131 ( (GetMapResult) response ).getException() );
132 } else {
133 responseImage = (BufferedImage) ( (GetMapResult) response ).getMap();
134 // LOG.logDebug( StringTools.concat( 100, "WMS RESULT: ", response ) );
135 if ( responseImage != null ) {
136 Color[] colors = ( (LocalWMSDataSource) dataSource ).getTransparentColors();
137 if ( colors != null && colors.length > 0 ) {
138 ImageUtils imgUtil = new ImageUtils( colors );
139 Image img = imgUtil.filterImage( responseImage );
140 Graphics2D g2d = (Graphics2D) responseImage.getGraphics();
141 g2d.drawImage( img, 0, 0, null );
142 g2d.dispose();
143 }
144 resolutionStripe.addTexture( ( dataSource.getName().getFormattedString() + id ), responseImage );
145 }
146 }
147 }
148 }
149 }
150
151 /**
152 * Creates a new GetMap request for the given datasource.
153 *
154 * @param ds
155 * the WMs datasource
156 * @param box
157 * the surface to be used as the bouding box
158 * @return a new GetMap request
159 */
160 private GetMap createGetMapRequest( LocalWMSDataSource ds ) {
161
162 GetMap getMapRequest = ds.getPartialGetMapRequest();
163
164 Values elevation = null;
165 Values time = null;
166 Map<String, Values> sampleDim = null;
167
168 // int tileSize = owner.getMaxTileSize();
169 int tileWidth = resolutionStripe.getRequestWidthForBBox();
170 int tileHeight = resolutionStripe.getRequestHeightForBBox();
171 if ( tileWidth == -1 || tileHeight == -1 ) {
172 LOG.logError( StringTools.concat( 500,
173 "Not creating WMS-GetMap because the height or the width of the image are -1: " ) );
174 return null;
175 }
176 // GeometryUtils.getImageSizeForSurface( (RankedSurface)box, owner.getMaxTileSize());
177
178 IDGenerator idg = IDGenerator.getInstance();
179 getMapRequest = GetMap.create( getMapRequest.getVersion(), String.valueOf( idg.generateUniqueID() ),
180 getMapRequest.getLayers(), elevation, sampleDim, getMapRequest.getFormat(),
181 tileWidth, tileHeight, resolutionStripe.getCRSName().getFormattedString(),
182 resolutionStripe.getSurface().getEnvelope(), getMapRequest.getTransparency(),
183 getMapRequest.getBGColor(), getMapRequest.getExceptions(), time, null, null,
184 null );
185
186 return getMapRequest;
187 }
188 }