/[schmitzm]/branches/1.0-gt2-2.6/src/skrueger/geotools/StyledFS.java
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Revision 583 - (hide annotations)
Thu Nov 26 14:22:57 2009 UTC (15 years, 3 months ago) by alfonx
File size: 8870 byte(s)
Much more efficitent to implement  getFeatureCollectionFiltered() with getFeatureSource().getFeature(filter) than creating a memoryFeatureCollection adnuse subfeatures on that!
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     * Stefan A. Krüger - additional utility classes
29     ******************************************************************************/
30     package skrueger.geotools;
31    
32     import java.io.File;
33     import java.io.FileNotFoundException;
34     import java.io.IOException;
35     import java.net.URL;
36     import java.util.Date;
37     import java.util.Random;
38    
39     import javax.swing.ImageIcon;
40     import javax.swing.JPanel;
41    
42     import org.apache.log4j.Logger;
43     import org.geotools.data.FeatureSource;
44 alfonx 426 import org.geotools.data.store.EmptyFeatureCollection;
45 alfonx 244 import org.geotools.feature.FeatureCollection;
46     import org.geotools.styling.Style;
47 alfonx 336 import org.opengis.feature.simple.SimpleFeature;
48     import org.opengis.feature.simple.SimpleFeatureType;
49 alfonx 332 import org.opengis.feature.type.AttributeDescriptor;
50 alfonx 426 import org.opengis.filter.Filter;
51 alfonx 244 import org.opengis.referencing.crs.CoordinateReferenceSystem;
52    
53 alfonx 454 import schmitzm.geotools.io.GeoImportUtil;
54 alfonx 244 import schmitzm.geotools.styling.StylingUtil;
55 alfonx 464 import skrueger.AttributeMetadata;
56 alfonx 244 import skrueger.i8n.Translation;
57    
58     import com.vividsolutions.jts.geom.Envelope;
59    
60     /**
61     * This class enables a non Atlas context to use the Atlas LayerPanel
62     * {@link JPanel} as a {@link MapContextManagerInterface}
63     *
64     * @author <a href="mailto:[email protected]">Stefan Alfons Kr&uuml;ger</a>
65     */
66     public class StyledFS implements StyledFeatureSourceInterface {
67     private static final Logger LOGGER = Logger.getLogger(StyledFS.class);
68    
69 alfonx 336 private final FeatureSource<SimpleFeatureType, SimpleFeature> fs;
70 alfonx 244
71     /**
72     * A unique ID which identifies the Layer in the Atlas. It's more important
73     * than it should be ;-)
74     */
75     private String id;
76    
77     private Style style;
78    
79     private Translation title;
80    
81     private Translation desc;
82    
83     private File sldFile;
84    
85 alfonx 420 private AttributeMetadataMap map;
86 alfonx 244
87 alfonx 426 private Filter filter = Filter.INCLUDE;
88    
89 alfonx 244 /**
90     * This class enables a non Atlas context to use the Atlas LayerPanel
91     * {@link JPanel} as a {@link MapContextManagerInterface}
92     *
93     * @param fs
94     * {@link FeatureSource} that is beeing styled.
95     *
96     * @param sldFile
97     * may be <code>null</code>. Otherwise the SLD {@link File} to
98     * import and associate with this {@link StyledFS}
99     */
100 alfonx 426 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
101     File sldFile) {
102 alfonx 244
103     this.fs = fs;
104     id = StyledFS.class.getSimpleName()
105     + new Random(new Date().getTime()).nextInt(10000000);
106    
107     this.sldFile = sldFile;
108    
109 alfonx 336 if (sldFile != null && sldFile.exists()) {
110 alfonx 244 try {
111     style = StylingUtil.loadSLD(sldFile)[0];
112     } catch (FileNotFoundException e) {
113     LOGGER
114     .debug("The SLD file passed was empty. Leaving the Style untouched. (We are in the constructor.. so its null");
115     } catch (Exception e) {
116     LOGGER.warn("Reading SLD failed: " + sldFile, e);
117     }
118     }
119     title = new Translation();
120 alfonx 426 desc = new Translation();
121 alfonx 244
122 alfonx 426 if (sldFile != null) {
123     title.fromOneLine(sldFile.getName());
124     desc.fromOneLine(sldFile.getAbsolutePath());
125     }
126    
127 alfonx 244 }
128    
129 alfonx 426 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs) {
130     this(fs, null);
131     }
132    
133 alfonx 244 public void dispose() {
134     }
135    
136     /**
137 alfonx 336 * Returns human readable {@link String} of the CRS natively used by this
138 alfonx 244 * {@link DpLayer}
139     *
140 alfonx 336 * If CRS == null, it will call {@link #getGeoObject()}
141 alfonx 244 *
142     */
143     public String getCRSString() {
144     if (getCrs() == null)
145     return "CRS?";
146    
147     return getCrs().getName().getCode();
148     }
149    
150     public CoordinateReferenceSystem getCrs() {
151 alfonx 454 CoordinateReferenceSystem crs = fs.getSchema().getCoordinateReferenceSystem();
152     if (fs.getSchema().getCoordinateReferenceSystem() == null) {
153     LOGGER.warn("Could not determine the CRS of "+getTitle()+". Using default "+GeoImportUtil.getDefaultCRS());
154     crs = GeoImportUtil.getDefaultCRS();
155     }
156     return crs;
157 alfonx 244 }
158    
159     public Translation getDesc() {
160     return desc;
161     }
162    
163     public Envelope getEnvelope() {
164     try {
165     return fs.getBounds();
166     } catch (IOException e) {
167     e.printStackTrace();
168     return null;
169     }
170     }
171    
172 alfonx 336 public FeatureSource<SimpleFeatureType, SimpleFeature> getGeoObject() {
173 alfonx 244 return fs;
174     }
175    
176     public String getId() {
177     return id;
178     }
179    
180     public ImageIcon getImageIcon() {
181     return null;
182     }
183    
184     public URL getInfoURL() {
185     return null;
186     }
187    
188     public Translation getKeywords() {
189     return null;
190     }
191    
192     public Style getStyle() {
193     return style;
194     }
195    
196     public Translation getTitle() {
197     return title;
198     }
199    
200     public boolean isDisposed() {
201     return false;
202     }
203    
204     /**
205     * If true, this layer will not be shown in the legend. Default = false
206     */
207     /**
208     *
209     * Killed by SK: 6. April 09: Ein Layer soll nicht generell auf
210     * verstecken/nicht verstecken gestellt werden können. Das sind
211     * Eigenschaften der Karte/MapContext, ebenso wie die Reihenfolge der Layer.
212     * Im Atlas verwaltet deshalb nun die Klasse skrueger.atlas.Map welche Layer
213     * nicht in der Legende auftauchen sollen. Meines Wissens hat keiner bisher
214     * die Funktion genutzt.
215     *
216     * // public boolean isHideInLegend() { // return false; // }
217     */
218    
219     public void setDesc(Translation dec) {
220     this.desc = dec;
221     }
222    
223     public void setImageIcon(ImageIcon icon) {
224     }
225    
226     public void setKeywords(Translation keywords) {
227     }
228    
229     public void setStyle(Style style) {
230     this.style = style;
231    
232     }
233    
234     public void setTitle(Translation title) {
235     this.title = title;
236    
237     }
238    
239     public void uncache() {
240     }
241    
242     /**
243     *
244     */
245 alfonx 420 public AttributeMetadataMap getAttributeMetaDataMap() {
246 alfonx 244 if (map == null) {
247    
248 alfonx 533 map = new AttributeMetadataMap(new String[] {Translation.getActiveLang()});
249 alfonx 244
250     // Leaving out the first one, it will be the_geom
251     for (int i = 1; i < fs.getSchema().getAttributeCount(); i++) {
252 alfonx 464 AttributeDescriptor attDesc = fs.getSchema().getDescriptor(i);
253 alfonx 244
254 alfonx 533 AttributeMetadata attMetaData = new AttributeMetadata(attDesc.getName(), map.getLanguages());
255 alfonx 464 map.put(attDesc.getName(), attMetaData);
256 alfonx 244 }
257     }
258     return map;
259     }
260    
261     /**
262     * @return The {@link File} where the SLD was loaded from or
263 alfonx 426 * <code>null</code> if there didn't exist a {@link File}.
264 alfonx 244 *
265     * @author <a href="mailto:[email protected]">Stefan Alfons
266     * Kr&uuml;ger</a>
267     */
268     public File getSldFile() {
269     return sldFile;
270     }
271    
272     public void setSldFile(File sldFile) {
273     this.sldFile = sldFile;
274     }
275    
276     /**
277     * Returns the features of the {@link FeatureSource}.
278     *
279     * @see {@link StyledFeaturesInterface}
280     */
281     @Override
282 alfonx 447 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollection() {
283     FeatureCollection<SimpleFeatureType, SimpleFeature> features;
284 alfonx 244 try {
285     features = getGeoObject().getFeatures();
286     } catch (IOException e) {
287     throw new RuntimeException(
288     "Error getting the features of the FeatureSource");
289     }
290     return features;
291     }
292    
293     /**
294     * Same as {@link #getGeoObject()} method, but complies to the
295     * {@link StyledFeaturesInterface}
296     *
297     * @see {@link StyledFeaturesInterface}
298     */
299     @Override
300 alfonx 426 public FeatureSource<SimpleFeatureType, SimpleFeature> getFeatureSource() {
301 alfonx 244 return getGeoObject();
302     }
303    
304 alfonx 426 @Override
305     public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollectionFiltered() {
306 alfonx 583 // final FeatureCollection<SimpleFeatureType, SimpleFeature> fc = getFeatureCollection();
307     // if (filter == Filter.EXCLUDE)
308     // return new EmptyFeatureCollection(fc.getSchema());
309     // if (filter == Filter.INCLUDE)
310     // return fc;
311     // return fc.subCollection(filter);
312    
313     try {
314     return getFeatureSource().getFeatures(filter);
315     } catch (IOException e) {
316     throw new RuntimeException(e);
317     }
318 alfonx 426 }
319    
320     @Override
321     public Filter getFilter() {
322     return filter;
323     }
324    
325     @Override
326     public void setFilter(Filter filter) {
327     this.filter = filter;
328     }
329    
330     @Override
331     public SimpleFeatureType getSchema() {
332     return getGeoObject().getSchema();
333     }
334    
335 alfonx 244 }

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