/[schmitzm]/trunk/src/skrueger/geotools/StyledFS.java
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Contents of /trunk/src/skrueger/geotools/StyledFS.java

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Revision 769 - (show annotations)
Sun Mar 21 11:02:34 2010 UTC (14 years, 11 months ago) by alfonx
File size: 8790 byte(s)
Made an interface and a Abstract class for AttributeMetaData
1 /*******************************************************************************
2 * Copyright (c) 2009 Martin O. J. Schmitz.
3 *
4 * This file is part of the SCHMITZM library - a collection of utility
5 * classes based on Java 1.6, focusing (not only) on Java Swing
6 * and the Geotools library.
7 *
8 * The SCHMITZM project is hosted at:
9 * http://wald.intevation.org/projects/schmitzm/
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public License
13 * as published by the Free Software Foundation; either version 3
14 * of the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License (license.txt)
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 * or try this link: http://www.gnu.org/licenses/lgpl.html
25 *
26 * Contributors:
27 * Martin O. J. Schmitz - initial API and implementation
28 * Stefan A. Krüger - additional utility classes
29 ******************************************************************************/
30 package skrueger.geotools;
31
32 import java.io.File;
33 import java.io.IOException;
34 import java.net.URL;
35 import java.util.Date;
36 import java.util.Random;
37
38 import javax.swing.ImageIcon;
39 import javax.swing.JPanel;
40
41 import org.apache.log4j.Logger;
42 import org.geotools.data.FeatureSource;
43 import org.geotools.feature.FeatureCollection;
44 import org.geotools.styling.Style;
45 import org.opengis.feature.simple.SimpleFeature;
46 import org.opengis.feature.simple.SimpleFeatureType;
47 import org.opengis.feature.type.AttributeDescriptor;
48 import org.opengis.filter.Filter;
49 import org.opengis.referencing.crs.CoordinateReferenceSystem;
50
51 import schmitzm.geotools.io.GeoImportUtil;
52 import schmitzm.geotools.styling.StylingUtil;
53 import skrueger.AttributeMetadataImpl;
54 import skrueger.i8n.Translation;
55
56 import com.vividsolutions.jts.geom.Envelope;
57
58 /**
59 * This class enables a non Atlas context to use the Atlas LayerPanel
60 * {@link JPanel} as a {@link MapContextManagerInterface}
61 *
62 * @author <a href="mailto:[email protected]">Stefan Alfons Kr&uuml;ger</a>
63 *
64 * TODO Rename to StyledShapefile
65 */
66 public class StyledFS implements StyledFeatureSourceInterface {
67 private static final Logger LOGGER = Logger.getLogger(StyledFS.class);
68
69 private final FeatureSource<SimpleFeatureType, SimpleFeature> fs;
70
71 /** Caching the CRS of the layer **/
72 CoordinateReferenceSystem crs = null;
73
74 /**
75 * A unique ID which identifies the Layer in the Atlas. It's more important
76 * than it should be ;-)
77 */
78 private String id;
79
80 private Style style;
81
82 private Translation title;
83
84 private Translation desc;
85
86 private File sldFile;
87
88 private AttributeMetadataMap map;
89
90 private Filter filter = Filter.INCLUDE;
91
92 /**
93 * This class enables a non Atlas context to use the Atlas LayerPanel
94 * {@link JPanel} as a {@link MapContextManagerInterface}
95 *
96 * @param fs
97 * {@link FeatureSource} that is beeing styled.
98 *
99 * @param sldFile
100 * may be <code>null</code>. Otherwise the SLD {@link File} to
101 * import and associate with this {@link StyledFS}
102 */
103 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
104 File sldFile) {
105
106 this.fs = fs;
107
108 id = StyledFS.class.getSimpleName()
109 + new Random(new Date().getTime()).nextInt(10000000);
110
111 this.sldFile = sldFile;
112
113 // datei existiert, dann lesen
114 if (sldFile != null && sldFile.exists()) {
115 try {
116 style = StylingUtil.loadSLD(sldFile)[0];
117 } catch (Exception e) {
118 LOGGER.warn("Reading SLD failed: " + sldFile, e);
119 style = null;
120 }
121 }
122
123 title = new Translation();
124 desc = new Translation();
125
126 if (sldFile != null) {
127 title.fromOneLine(sldFile.getName());
128 desc.fromOneLine(sldFile.getAbsolutePath());
129 }
130
131 }
132
133 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs) {
134 this(fs, null);
135 }
136
137 public void dispose() {
138 }
139
140 /**
141 * Returns human readable {@link String} of the CRS natively used by this
142 * {@link DpLayer}
143 *
144 * If CRS == null, it will call {@link #getGeoObject()}
145 *
146 */
147 public String getCRSString() {
148 if (getCrs() == null)
149 return "CRS?";
150
151 return getCrs().getName().getCode();
152 }
153
154 public CoordinateReferenceSystem getCrs() {
155 if (crs == null) {
156 crs = fs.getSchema()
157 .getCoordinateReferenceSystem();
158 if (fs.getSchema().getCoordinateReferenceSystem() == null) {
159 LOGGER.warn("Could not determine the CRS of " + getTitle()
160 + ". Using default " + GeoImportUtil.getDefaultCRS());
161 crs = GeoImportUtil.getDefaultCRS();
162 }
163 }
164 return crs;
165 }
166
167 public Translation getDesc() {
168 return desc;
169 }
170
171 public Envelope getEnvelope() {
172 try {
173 return fs.getBounds();
174 } catch (IOException e) {
175 e.printStackTrace();
176 return null;
177 }
178 }
179
180 public FeatureSource<SimpleFeatureType, SimpleFeature> getGeoObject() {
181 return fs;
182 }
183
184 public String getId() {
185 return id;
186 }
187
188 public ImageIcon getImageIcon() {
189 return null;
190 }
191
192 public URL getInfoURL() {
193 return null;
194 }
195
196 public Translation getKeywords() {
197 return null;
198 }
199
200 public Style getStyle() {
201 return style;
202 }
203
204 public Translation getTitle() {
205 return title;
206 }
207
208 public boolean isDisposed() {
209 return false;
210 }
211
212 /**
213 * If true, this layer will not be shown in the legend. Default = false
214 */
215 /**
216 *
217 * Killed by SK: 6. April 09: Ein Layer soll nicht generell auf
218 * verstecken/nicht verstecken gestellt werden können. Das sind
219 * Eigenschaften der Karte/MapContext, ebenso wie die Reihenfolge der Layer.
220 * Im Atlas verwaltet deshalb nun die Klasse skrueger.atlas.Map welche Layer
221 * nicht in der Legende auftauchen sollen. Meines Wissens hat keiner bisher
222 * die Funktion genutzt.
223 *
224 * // public boolean isHideInLegend() { // return false; // }
225 */
226
227 public void setDesc(Translation dec) {
228 this.desc = dec;
229 }
230
231 public void setImageIcon(ImageIcon icon) {
232 }
233
234 public void setKeywords(Translation keywords) {
235 }
236
237 public void setStyle(Style style) {
238 this.style = style;
239
240 }
241
242 public void setTitle(Translation title) {
243 this.title = title;
244
245 }
246
247 public void uncache() {
248 }
249
250 /**
251 *
252 */
253 public AttributeMetadataMap getAttributeMetaDataMap() {
254 if (map == null) {
255
256 map = new AttributeMetadataImplMap();
257
258 // Leaving out the first one, it will be the_geom
259 for (int i = 1; i < fs.getSchema().getAttributeCount(); i++) {
260 AttributeDescriptor attDesc = fs.getSchema().getDescriptor(i);
261
262 AttributeMetadataImpl attMetaData = new AttributeMetadataImpl(attDesc
263 .getName(), map.getLanguages());
264 map.put(attDesc.getName(), attMetaData);
265 }
266 }
267 return map;
268 }
269
270 /**
271 * @return The {@link File} where the SLD was loaded from or
272 * <code>null</code> if there didn't exist a {@link File}.
273 *
274 * @author <a href="mailto:[email protected]">Stefan Alfons
275 * Kr&uuml;ger</a>
276 */
277 public File getSldFile() {
278 return sldFile;
279 }
280
281 public void setSldFile(File sldFile) {
282 this.sldFile = sldFile;
283 }
284
285 /**
286 * Returns the features of the {@link FeatureSource}.
287 *
288 * @see {@link StyledFeaturesInterface}
289 */
290 @Override
291 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollection() {
292 FeatureCollection<SimpleFeatureType, SimpleFeature> features;
293 try {
294 features = getGeoObject().getFeatures();
295 } catch (IOException e) {
296 throw new RuntimeException(
297 "Error getting the features of the FeatureSource");
298 }
299 return features;
300 }
301
302 /**
303 * Same as {@link #getGeoObject()} method, but complies to the
304 * {@link StyledFeaturesInterface}
305 *
306 * @see {@link StyledFeaturesInterface}
307 */
308 @Override
309 public FeatureSource<SimpleFeatureType, SimpleFeature> getFeatureSource() {
310 return getGeoObject();
311 }
312
313 @Override
314 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollectionFiltered() {
315 // final FeatureCollection<SimpleFeatureType, SimpleFeature> fc =
316 // getFeatureCollection();
317 // if (filter == Filter.EXCLUDE)
318 // return new EmptyFeatureCollection(fc.getSchema());
319 // if (filter == Filter.INCLUDE)
320 // return fc;
321 // return fc.subCollection(filter);
322
323 try {
324 return getFeatureSource().getFeatures(filter);
325 } catch (IOException e) {
326 throw new RuntimeException(e);
327 }
328 }
329
330 @Override
331 public Filter getFilter() {
332 return filter;
333 }
334
335 @Override
336 public void setFilter(Filter filter) {
337 this.filter = filter;
338 }
339
340 @Override
341 public SimpleFeatureType getSchema() {
342 return getGeoObject().getSchema();
343 }
344
345 }

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