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

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Revision 1159 - (hide annotations)
Fri Oct 22 17:56:28 2010 UTC (14 years, 4 months ago) by alfonx
File size: 10763 byte(s)
First and very basic support for WFS in AtlasStyler
1 alfonx 244 /*******************************************************************************
2     * Copyright (c) 2009 Martin O. J. Schmitz.
3     *
4     * This file is part of the SCHMITZM library - a collection of utility
5 alfonx 256 * classes based on Java 1.6, focusing (not only) on Java Swing
6 alfonx 244 * 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 alfonx 862 * Stefan A. Tzeggai - additional utility classes
29 alfonx 244 ******************************************************************************/
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 alfonx 770 import org.geotools.feature.NameImpl;
45 alfonx 244 import org.geotools.styling.Style;
46 alfonx 336 import org.opengis.feature.simple.SimpleFeature;
47     import org.opengis.feature.simple.SimpleFeatureType;
48 alfonx 332 import org.opengis.feature.type.AttributeDescriptor;
49 alfonx 426 import org.opengis.filter.Filter;
50 alfonx 244 import org.opengis.referencing.crs.CoordinateReferenceSystem;
51    
52 alfonx 454 import schmitzm.geotools.io.GeoImportUtil;
53 alfonx 244 import schmitzm.geotools.styling.StylingUtil;
54 alfonx 769 import skrueger.AttributeMetadataImpl;
55 alfonx 244 import skrueger.i8n.Translation;
56    
57     import com.vividsolutions.jts.geom.Envelope;
58    
59     /**
60     * This class enables a non Atlas context to use the Atlas LayerPanel
61     * {@link JPanel} as a {@link MapContextManagerInterface}
62     *
63 alfonx 888 * @author <a href="mailto:[email protected]">Stefan Alfons Tzeggai</a>
64 alfonx 620 *
65 alfonx 863 * TODO Rename to StyledShapefile
66 alfonx 244 */
67     public class StyledFS implements StyledFeatureSourceInterface {
68     private static final Logger LOGGER = Logger.getLogger(StyledFS.class);
69    
70 alfonx 336 private final FeatureSource<SimpleFeatureType, SimpleFeature> fs;
71 alfonx 863
72 alfonx 620 /** Caching the CRS of the layer **/
73     CoordinateReferenceSystem crs = null;
74 alfonx 244
75     /**
76     * A unique ID which identifies the Layer in the Atlas. It's more important
77     * than it should be ;-)
78     */
79 alfonx 1159 final private String id;
80 alfonx 244
81     private Style style;
82    
83     private Translation title;
84    
85     private Translation desc;
86    
87     private File sldFile;
88    
89 alfonx 863 /** A map of simple attribute names to their meta-data **/
90     private AttributeMetadataMap<AttributeMetadataImpl> map;
91 alfonx 244
92 alfonx 426 private Filter filter = Filter.INCLUDE;
93    
94 alfonx 244 /**
95     * This class enables a non Atlas context to use the Atlas LayerPanel
96     * {@link JPanel} as a {@link MapContextManagerInterface}
97     *
98     * @param fs
99     * {@link FeatureSource} that is beeing styled.
100     *
101     * @param sldFile
102     * may be <code>null</code>. Otherwise the SLD {@link File} to
103     * import and associate with this {@link StyledFS}
104 alfonx 1159 *
105     * @param id
106     * <code>null</code> is allowed and will autogenerate an id
107 alfonx 244 */
108 alfonx 426 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
109 alfonx 1159 File sldFile, String id) {
110 alfonx 244
111     this.fs = fs;
112 alfonx 620
113 alfonx 1159 if (id == null) {
114     this.id = StyledFS.class.getSimpleName()
115     + new Random(new Date().getTime()).nextInt(10000000);
116     } else {
117     this.id = id;
118     }
119 alfonx 244
120     this.sldFile = sldFile;
121    
122 alfonx 620 // datei existiert, dann lesen
123 alfonx 336 if (sldFile != null && sldFile.exists()) {
124 alfonx 244 try {
125     style = StylingUtil.loadSLD(sldFile)[0];
126     } catch (Exception e) {
127     LOGGER.warn("Reading SLD failed: " + sldFile, e);
128 alfonx 620 style = null;
129 alfonx 244 }
130     }
131 alfonx 620
132 alfonx 244 title = new Translation();
133 alfonx 426 desc = new Translation();
134 alfonx 244
135 alfonx 426 if (sldFile != null) {
136     title.fromOneLine(sldFile.getName());
137     desc.fromOneLine(sldFile.getAbsolutePath());
138     }
139    
140 alfonx 244 }
141    
142 alfonx 426 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs) {
143 alfonx 1159 this(fs, (File) null, null);
144 alfonx 426 }
145    
146 alfonx 1159 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
147     String id) {
148     this(fs, null, id);
149     }
150    
151 alfonx 244 public void dispose() {
152     }
153    
154     /**
155 alfonx 336 * Returns human readable {@link String} of the CRS natively used by this
156 alfonx 244 * {@link DpLayer}
157     *
158 alfonx 336 * If CRS == null, it will call {@link #getGeoObject()}
159 alfonx 244 *
160     */
161     public String getCRSString() {
162     if (getCrs() == null)
163     return "CRS?";
164    
165     return getCrs().getName().getCode();
166     }
167    
168     public CoordinateReferenceSystem getCrs() {
169 alfonx 620 if (crs == null) {
170 alfonx 863 crs = fs.getSchema().getCoordinateReferenceSystem();
171 alfonx 894 if (crs == null) {
172    
173     crs = fs.getSchema().getGeometryDescriptor()
174     .getCoordinateReferenceSystem();
175 alfonx 1159
176 alfonx 894 if (crs == null) {
177     LOGGER.warn("Could not determine the CRS of " + getTitle()
178     + ". Using default "
179     + GeoImportUtil.getDefaultCRS());
180     crs = GeoImportUtil.getDefaultCRS();
181     }
182 alfonx 620 }
183 alfonx 454 }
184     return crs;
185 alfonx 244 }
186    
187     public Translation getDesc() {
188     return desc;
189     }
190    
191     public Envelope getEnvelope() {
192     try {
193     return fs.getBounds();
194     } catch (IOException e) {
195     e.printStackTrace();
196     return null;
197     }
198     }
199    
200 alfonx 336 public FeatureSource<SimpleFeatureType, SimpleFeature> getGeoObject() {
201 alfonx 244 return fs;
202     }
203    
204     public String getId() {
205     return id;
206     }
207    
208     public ImageIcon getImageIcon() {
209     return null;
210     }
211    
212     public URL getInfoURL() {
213     return null;
214     }
215    
216     public Translation getKeywords() {
217     return null;
218     }
219    
220     public Style getStyle() {
221     return style;
222     }
223    
224     public Translation getTitle() {
225     return title;
226     }
227    
228     public boolean isDisposed() {
229     return false;
230     }
231    
232     /**
233     * If true, this layer will not be shown in the legend. Default = false
234     */
235     /**
236     *
237     * Killed by SK: 6. April 09: Ein Layer soll nicht generell auf
238     * verstecken/nicht verstecken gestellt werden können. Das sind
239     * Eigenschaften der Karte/MapContext, ebenso wie die Reihenfolge der Layer.
240     * Im Atlas verwaltet deshalb nun die Klasse skrueger.atlas.Map welche Layer
241     * nicht in der Legende auftauchen sollen. Meines Wissens hat keiner bisher
242     * die Funktion genutzt.
243     *
244     * // public boolean isHideInLegend() { // return false; // }
245     */
246    
247     public void setDesc(Translation dec) {
248     this.desc = dec;
249     }
250    
251     public void setImageIcon(ImageIcon icon) {
252     }
253    
254     public void setKeywords(Translation keywords) {
255     }
256    
257     public void setStyle(Style style) {
258     this.style = style;
259    
260     }
261    
262     public void setTitle(Translation title) {
263     this.title = title;
264    
265     }
266    
267     public void uncache() {
268     }
269    
270     /**
271     *
272     */
273 alfonx 863 public AttributeMetadataMap<AttributeMetadataImpl> getAttributeMetaDataMap() {
274 alfonx 244 if (map == null) {
275    
276 alfonx 769 map = new AttributeMetadataImplMap();
277 alfonx 244
278 alfonx 863 // // Leaving out the first one, it will be the_geom
279     // for (int i = 1; i < fs.getSchema().getAttributeCount(); i++) {
280     // AttributeDescriptor attDesc = fs.getSchema().getDescriptor(i);
281     //
282     // AttributeMetadataImpl attMetaData = new AttributeMetadataImpl(
283     // new NameImpl(attDesc
284     // .getName().getNamespaceURI(), attDesc
285     // .getName().getLocalPart()), map.getLanguages());
286     // map.put(attDesc.getName(), attMetaData);
287     // }
288    
289 alfonx 244 // Leaving out the first one, it will be the_geom
290     for (int i = 1; i < fs.getSchema().getAttributeCount(); i++) {
291 alfonx 464 AttributeDescriptor attDesc = fs.getSchema().getDescriptor(i);
292 alfonx 244
293 alfonx 863 // TODO AttributeMetadataAS would be nicer, which would not work
294     // with Translations ;-)
295     AttributeMetadataImpl attMetaData = new AttributeMetadataImpl(
296     new NameImpl(attDesc.getName().getNamespaceURI(),
297 alfonx 1159 attDesc.getName().getLocalPart()),
298     map.getLanguages());
299 alfonx 863 if (String.class.isAssignableFrom(attDesc.getType()
300     .getBinding())) {
301 alfonx 775 // For Strings we add the "" as NODATA values
302     attMetaData.addNodataValue("");
303     }
304 alfonx 464 map.put(attDesc.getName(), attMetaData);
305 alfonx 244 }
306     }
307     return map;
308     }
309    
310     /**
311     * @return The {@link File} where the SLD was loaded from or
312 alfonx 426 * <code>null</code> if there didn't exist a {@link File}.
313 alfonx 244 *
314 alfonx 894 * @author <a href="mailto:[email protected]">Stefan Alfons Tzeggai</a>
315 alfonx 244 */
316     public File getSldFile() {
317     return sldFile;
318     }
319 alfonx 863
320 alfonx 244 public void setSldFile(File sldFile) {
321     this.sldFile = sldFile;
322     }
323    
324     /**
325     * Returns the features of the {@link FeatureSource}.
326     *
327     * @see {@link StyledFeaturesInterface}
328     */
329     @Override
330 alfonx 447 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollection() {
331     FeatureCollection<SimpleFeatureType, SimpleFeature> features;
332 alfonx 244 try {
333     features = getGeoObject().getFeatures();
334     } catch (IOException e) {
335     throw new RuntimeException(
336     "Error getting the features of the FeatureSource");
337     }
338     return features;
339     }
340    
341     /**
342     * Same as {@link #getGeoObject()} method, but complies to the
343     * {@link StyledFeaturesInterface}
344     *
345     * @see {@link StyledFeaturesInterface}
346     */
347     @Override
348 alfonx 426 public FeatureSource<SimpleFeatureType, SimpleFeature> getFeatureSource() {
349 alfonx 244 return getGeoObject();
350     }
351    
352 alfonx 426 @Override
353     public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollectionFiltered() {
354 alfonx 620 // final FeatureCollection<SimpleFeatureType, SimpleFeature> fc =
355     // getFeatureCollection();
356     // if (filter == Filter.EXCLUDE)
357     // return new EmptyFeatureCollection(fc.getSchema());
358     // if (filter == Filter.INCLUDE)
359     // return fc;
360     // return fc.subCollection(filter);
361    
362 alfonx 607 try {
363 alfonx 1159 if (filter != Filter.INCLUDE)
364     return getFeatureSource().getFeatures(filter);
365     else
366     return getFeatureSource().getFeatures();
367 alfonx 607 } catch (IOException e) {
368     throw new RuntimeException(e);
369     }
370 alfonx 426 }
371    
372     @Override
373     public Filter getFilter() {
374     return filter;
375     }
376    
377     @Override
378     public void setFilter(Filter filter) {
379     this.filter = filter;
380     }
381    
382     @Override
383     public SimpleFeatureType getSchema() {
384     return getGeoObject().getSchema();
385     }
386    
387 alfonx 863 /**
388     * Tries to load a style from the file denoted in {@link #getSldFile()}. If
389     * the file doesn't exits, return <code>null</code>;
390 alfonx 894 *
391 alfonx 863 * @return <code>true</code> is style was loaded
392     */
393     public boolean loadStyle() {
394     if (getSldFile() == null)
395     return false;
396 alfonx 894
397 alfonx 863 try {
398     Style[] loadSLD = StylingUtil.loadSLD(getSldFile());
399     setStyle(loadSLD[0]);
400     return true;
401     } catch (Exception e) {
402     return false;
403     }
404    
405     }
406    
407 alfonx 1159 public void setTitle(String title) {
408     setTitle(new Translation(title));
409     }
410    
411     public void setDesc(String desc) {
412     setDesc(new Translation(desc));
413     }
414    
415 alfonx 244 }

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