Source Code Cross Referenced for WMSMapLayer.java in  » GIS » GeoTools-2.4.1 » org » geotools » demo » mappane » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.demo.mappane 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *    GeoTools - OpenSource mapping toolkit
003:         *    http://geotools.org
004:         *    (C) 2002-2006, GeoTools Project Managment Committee (PMC)
005:         *
006:         *    This library is free software; you can redistribute it and/or
007:         *    modify it under the terms of the GNU Lesser General Public
008:         *    License as published by the Free Software Foundation;
009:         *    version 2.1 of the License.
010:         *
011:         *    This library is distributed in the hope that it will be useful,
012:         *    but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         *    Lesser General Public License for more details.
015:         */
016:        package org.geotools.demo.mappane;
017:
018:        import java.awt.Component;
019:        import java.awt.event.ComponentEvent;
020:        import java.awt.event.ComponentListener;
021:        import java.awt.image.BufferedImage;
022:        import java.io.BufferedReader;
023:        import java.io.IOException;
024:        import java.io.InputStream;
025:        import java.io.InputStreamReader;
026:        import java.net.URL;
027:        import java.net.URLConnection;
028:        import java.util.HashMap;
029:        import java.util.Iterator;
030:        import java.util.Set;
031:
032:        import javax.imageio.ImageIO;
033:        import javax.swing.SwingUtilities;
034:
035:        import org.apache.commons.lang.StringUtils;
036:        import org.geotools.coverage.grid.GridCoverage2D;
037:        import org.geotools.coverage.grid.GridCoverageFactory;
038:        import org.geotools.data.DataUtilities;
039:        import org.geotools.data.FeatureSource;
040:        import org.geotools.data.ows.CRSEnvelope;
041:        import org.geotools.data.ows.Layer;
042:        import org.geotools.data.wms.WebMapServer;
043:        import org.geotools.data.wms.request.GetMapRequest;
044:        import org.geotools.factory.CommonFactoryFinder;
045:        import org.geotools.factory.FactoryRegistryException;
046:        import org.geotools.geometry.jts.ReferencedEnvelope;
047:        import org.geotools.map.DefaultMapLayer;
048:        import org.geotools.map.MapContext;
049:        import org.geotools.map.MapLayer;
050:        import org.geotools.map.event.MapBoundsEvent;
051:        import org.geotools.map.event.MapBoundsListener;
052:        import org.geotools.map.event.MapLayerEvent;
053:        import org.geotools.referencing.CRS;
054:        import org.geotools.resources.coverage.FeatureUtilities;
055:        import org.geotools.styling.FeatureTypeStyle;
056:        import org.geotools.styling.RasterSymbolizer;
057:        import org.geotools.styling.Rule;
058:        import org.geotools.styling.Style;
059:        import org.geotools.styling.StyleFactory;
060:        import org.geotools.styling.Symbolizer;
061:        import org.opengis.referencing.FactoryException;
062:        import org.opengis.referencing.crs.CoordinateReferenceSystem;
063:
064:        public class WMSMapLayer extends DefaultMapLayer implements  MapLayer,
065:                MapBoundsListener, ComponentListener {
066:            static GridCoverageFactory gcf = new GridCoverageFactory();
067:            private Layer layer;
068:            private WebMapServer wms;
069:            GridCoverage2D grid;
070:            private ReferencedEnvelope bbox;
071:            private ReferencedEnvelope bounds;
072:            private int width = 400;
073:            private int height = 200;
074:            private StyleFactory factory = CommonFactoryFinder
075:                    .getStyleFactory(null);
076:            private boolean transparent = true;
077:            private String bgColour;
078:            private String exceptions = "application/vnd.ogc.se_inimage";
079:
080:            public WMSMapLayer(WebMapServer wms, Layer layer) {
081:                super ((FeatureSource) null, null, "");
082:                this .layer = layer;
083:                this .wms = wms;
084:                setDefaultStyle();
085:                setGrid();
086:            }
087:
088:            public void setDefaultStyle() {
089:                RasterSymbolizer symbolizer = factory.createRasterSymbolizer();
090:
091:                // SLDParser stylereader = new SLDParser(factory,sld);
092:                // org.geotools.styling.Style[] style = stylereader.readXML();
093:                Style style = factory.createStyle();
094:                Rule[] rules = new Rule[1];
095:                rules[0] = factory.createRule();
096:                rules[0].setSymbolizers(new Symbolizer[] { symbolizer });
097:
098:                FeatureTypeStyle type = factory.createFeatureTypeStyle(rules);
099:                style.addFeatureTypeStyle(type);
100:                setStyle(style);
101:            }
102:
103:            private void setGrid() {
104:                GetMapRequest mapRequest = wms.createGetMapRequest();
105:                mapRequest.addLayer(layer);
106:                //System.out.println(width + " " + height);
107:                mapRequest.setDimensions(getWidth(), getHeight());
108:                mapRequest.setFormat("image/png");
109:
110:                if (bgColour != null) {
111:                    mapRequest.setBGColour(bgColour);
112:                }
113:
114:                mapRequest.setExceptions(exceptions);
115:
116:                Set srs = layer.getSrs();
117:                String crs = "EPSG:4326";
118:
119:                if (srs.contains("EPSG:4326")) { // really we should get the underlying
120:                    // map pane CRS
121:                    crs = "EPSG:4326";
122:                } else {
123:                    crs = (String) srs.iterator().next();
124:                }
125:
126:                //System.out.println("crs = " + crs);
127:                if (bbox == null) {
128:                    HashMap bboxes = layer.getBoundingBoxes();
129:                    Set keys = bboxes.keySet();
130:                    String k = "";
131:
132:                    for (Iterator it = keys.iterator(); it.hasNext(); k = (String) it
133:                            .next()) {
134:                        //System.out.println(k + " -> " + bboxes.get(k));
135:                    }
136:
137:                    CRSEnvelope bb = (CRSEnvelope) bboxes.get(crs);
138:
139:                    if (bb == null) { // something bad happened
140:                        bb = layer.getLatLonBoundingBox();
141:                        bb.setEPSGCode("EPSG:4326"); // for some reason WMS doesn't
142:                        // set
143:                        // this.
144:
145:                        crs = "EPSG:4326";
146:                    }
147:
148:                    CoordinateReferenceSystem coordinateReferenceSystem = null;
149:
150:                    try {
151:                        coordinateReferenceSystem = CRS.decode(crs);
152:                    } catch (FactoryRegistryException e) {
153:                        // TODO Auto-generated catch block
154:                        e.printStackTrace();
155:                    } catch (FactoryException e) {
156:                        // TODO Auto-generated catch block
157:                        e.printStackTrace();
158:                    }
159:
160:                    bbox = new ReferencedEnvelope(bb.getMinX(), bb.getMaxX(),
161:                            bb.getMinY(), bb.getMaxY(),
162:                            coordinateReferenceSystem);
163:
164:                    bounds = bbox;
165:                }
166:
167:                // fix the bounds for the shape of the window.
168:
169:                //System.out.println(bbox.toString());
170:                mapRequest.setSRS(crs);
171:                mapRequest.setBBox(bbox.getMinX() + "," + bbox.getMinY() + ","
172:                        + bbox.getMaxX() + "," + bbox.getMaxY());
173:                mapRequest.setTransparent(transparent);
174:
175:                URL request = mapRequest.getFinalURL();
176:
177:                //System.out.println(request.toString());
178:                InputStream is = null;
179:
180:                try {
181:                    URLConnection connection = request.openConnection();
182:                    String type = connection.getContentType();
183:                    is = connection.getInputStream();
184:
185:                    if (type.equalsIgnoreCase("image/png")) {
186:                        BufferedImage image = ImageIO.read(is);
187:
188:                        /*
189:                         * if (bbox == null) { Envelope2D env = new Envelope2D(bb
190:                         * .getCoordinateReferenceSystem(), bb.getMinX(), bb .getMinY(),
191:                         * bb.getLength(0), bb.getLength(1)); bbox = new
192:                         * ReferencedEnvelope(env); }
193:                         */
194:                        grid = gcf.create(layer.getTitle(), image, bbox);
195:                        //System.out.println("fetched new grid");
196:                        //if (featureSource == null)
197:                        featureSource = DataUtilities.source(FeatureUtilities
198:                                .wrapGridCoverage(grid));
199:
200:                        fireMapLayerListenerLayerChanged(new MapLayerEvent(
201:                                this , MapLayerEvent.DATA_CHANGED));
202:                    } else {
203:                        System.out.println("error content type is " + type);
204:
205:                        if (StringUtils.contains(type, "text")
206:                                || StringUtils.contains(type, "xml")) {
207:                            String line = "";
208:                            BufferedReader br = new BufferedReader(
209:                                    new InputStreamReader(is));
210:
211:                            while ((line = br.readLine()) != null) {
212:                                System.out.println(line);
213:                            }
214:                        }
215:                    }
216:                } catch (IOException e1) {
217:                    // TODO Auto-generated catch block
218:                    e1.printStackTrace();
219:                } catch (Exception ex) {
220:                    // TODO Auto-generated catch block
221:                    ex.printStackTrace();
222:                } finally {
223:                    try {
224:                        if (is != null) {
225:                            is.close();
226:                        }
227:                    } catch (IOException e) {
228:                        // TODO Auto-generated catch block
229:                        e.printStackTrace();
230:                    }
231:                }
232:            }
233:
234:            public void mapBoundsChanged(MapBoundsEvent event) {
235:                bbox = ((MapContext) event.getSource()).getAreaOfInterest();
236:
237:                //		System.out.println("old:" + bbox + "\n" + "new:"
238:                //				+ event.getOldAreaOfInterest());
239:                if (!bbox.equals(event.getOldAreaOfInterest())) {
240:                    System.out.println("bbox changed - fetching new grid");
241:
242:                    Thread t = new Thread() {
243:                        public void run() {
244:                            setGrid();
245:                        }
246:                    };
247:
248:                    SwingUtilities.invokeLater(t);
249:                }
250:            }
251:
252:            public int getHeight() {
253:                return height;
254:            }
255:
256:            public void setHeight(int height) {
257:                this .height = height;
258:            }
259:
260:            public int getWidth() {
261:                return width;
262:            }
263:
264:            public void setWidth(int width) {
265:                this .width = width;
266:            }
267:
268:            public GridCoverage2D getGrid() {
269:                return grid;
270:            }
271:
272:            public boolean isTransparent() {
273:                return transparent;
274:            }
275:
276:            public void setTransparent(boolean transparent) {
277:                this .transparent = transparent;
278:            }
279:
280:            public void componentHidden(ComponentEvent e) {
281:                // TODO Auto-generated method stub
282:            }
283:
284:            public void componentMoved(ComponentEvent e) {
285:                // TODO Auto-generated method stub
286:            }
287:
288:            public void componentResized(ComponentEvent e) {
289:                Component c = (Component) e.getSource();
290:                width = c.getWidth();
291:                height = c.getHeight();
292:            }
293:
294:            public void componentShown(ComponentEvent e) {
295:                Component c = (Component) e.getSource();
296:                width = c.getWidth();
297:                height = c.getHeight();
298:            }
299:
300:            public String getBgColour() {
301:                return bgColour;
302:            }
303:
304:            public void setBgColour(String bgColour) {
305:                this .bgColour = bgColour;
306:            }
307:
308:            public String getExceptions() {
309:                return exceptions;
310:            }
311:
312:            /**
313:             * Set the type of exception reports.
314:             * Valid values are:
315:             * "application/vnd.ogc.se_xml" (the default)
316:             * "application/vnd.ogc.se_inimage"
317:             * "application/vnd.ogc.se_blank"
318:             *
319:             * @param exceptions
320:             */
321:            public void setExceptions(String exceptions) {
322:                this .exceptions = exceptions;
323:            }
324:
325:            public ReferencedEnvelope getBounds() {
326:                //System.out.println("got bounds");
327:                return bounds;
328:            }
329:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.