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

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Revision 770 - (hide annotations)
Sun Mar 21 11:36:11 2010 UTC (14 years, 11 months ago) by alfonx
File size: 8902 byte(s)
Had to switch the AttributeMetadata key from org.opengis.feature.type.Name to geotools.NameImpl. That sounds not-so-nice, because it is generally better to program against an interface instead of an implementation, BUT NameImpl implements Serializable which is a big help when i want to map that AttributeMetaDataMap in another project.
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.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     * @author <a href="mailto:[email protected]">Stefan Alfons Kr&uuml;ger</a>
64 alfonx 620 *
65     * 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 620
72     /** 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     private String id;
80    
81     private Style style;
82    
83     private Translation title;
84    
85     private Translation desc;
86    
87     private File sldFile;
88    
89 alfonx 420 private AttributeMetadataMap map;
90 alfonx 244
91 alfonx 426 private Filter filter = Filter.INCLUDE;
92    
93 alfonx 244 /**
94     * This class enables a non Atlas context to use the Atlas LayerPanel
95     * {@link JPanel} as a {@link MapContextManagerInterface}
96     *
97     * @param fs
98     * {@link FeatureSource} that is beeing styled.
99     *
100     * @param sldFile
101     * may be <code>null</code>. Otherwise the SLD {@link File} to
102     * import and associate with this {@link StyledFS}
103     */
104 alfonx 426 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
105     File sldFile) {
106 alfonx 244
107     this.fs = fs;
108 alfonx 620
109 alfonx 244 id = StyledFS.class.getSimpleName()
110     + new Random(new Date().getTime()).nextInt(10000000);
111    
112     this.sldFile = sldFile;
113    
114 alfonx 620 // datei existiert, dann lesen
115 alfonx 336 if (sldFile != null && sldFile.exists()) {
116 alfonx 244 try {
117     style = StylingUtil.loadSLD(sldFile)[0];
118     } catch (Exception e) {
119     LOGGER.warn("Reading SLD failed: " + sldFile, e);
120 alfonx 620 style = null;
121 alfonx 244 }
122     }
123 alfonx 620
124 alfonx 244 title = new Translation();
125 alfonx 426 desc = new Translation();
126 alfonx 244
127 alfonx 426 if (sldFile != null) {
128     title.fromOneLine(sldFile.getName());
129     desc.fromOneLine(sldFile.getAbsolutePath());
130     }
131    
132 alfonx 244 }
133    
134 alfonx 426 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs) {
135     this(fs, null);
136     }
137    
138 alfonx 244 public void dispose() {
139     }
140    
141     /**
142 alfonx 336 * Returns human readable {@link String} of the CRS natively used by this
143 alfonx 244 * {@link DpLayer}
144     *
145 alfonx 336 * If CRS == null, it will call {@link #getGeoObject()}
146 alfonx 244 *
147     */
148     public String getCRSString() {
149     if (getCrs() == null)
150     return "CRS?";
151    
152     return getCrs().getName().getCode();
153     }
154    
155     public CoordinateReferenceSystem getCrs() {
156 alfonx 620 if (crs == null) {
157     crs = fs.getSchema()
158     .getCoordinateReferenceSystem();
159     if (fs.getSchema().getCoordinateReferenceSystem() == null) {
160     LOGGER.warn("Could not determine the CRS of " + getTitle()
161     + ". Using default " + GeoImportUtil.getDefaultCRS());
162     crs = GeoImportUtil.getDefaultCRS();
163     }
164 alfonx 454 }
165     return crs;
166 alfonx 244 }
167    
168     public Translation getDesc() {
169     return desc;
170     }
171    
172     public Envelope getEnvelope() {
173     try {
174     return fs.getBounds();
175     } catch (IOException e) {
176     e.printStackTrace();
177     return null;
178     }
179     }
180    
181 alfonx 336 public FeatureSource<SimpleFeatureType, SimpleFeature> getGeoObject() {
182 alfonx 244 return fs;
183     }
184    
185     public String getId() {
186     return id;
187     }
188    
189     public ImageIcon getImageIcon() {
190     return null;
191     }
192    
193     public URL getInfoURL() {
194     return null;
195     }
196    
197     public Translation getKeywords() {
198     return null;
199     }
200    
201     public Style getStyle() {
202     return style;
203     }
204    
205     public Translation getTitle() {
206     return title;
207     }
208    
209     public boolean isDisposed() {
210     return false;
211     }
212    
213     /**
214     * If true, this layer will not be shown in the legend. Default = false
215     */
216     /**
217     *
218     * Killed by SK: 6. April 09: Ein Layer soll nicht generell auf
219     * verstecken/nicht verstecken gestellt werden können. Das sind
220     * Eigenschaften der Karte/MapContext, ebenso wie die Reihenfolge der Layer.
221     * Im Atlas verwaltet deshalb nun die Klasse skrueger.atlas.Map welche Layer
222     * nicht in der Legende auftauchen sollen. Meines Wissens hat keiner bisher
223     * die Funktion genutzt.
224     *
225     * // public boolean isHideInLegend() { // return false; // }
226     */
227    
228     public void setDesc(Translation dec) {
229     this.desc = dec;
230     }
231    
232     public void setImageIcon(ImageIcon icon) {
233     }
234    
235     public void setKeywords(Translation keywords) {
236     }
237    
238     public void setStyle(Style style) {
239     this.style = style;
240    
241     }
242    
243     public void setTitle(Translation title) {
244     this.title = title;
245    
246     }
247    
248     public void uncache() {
249     }
250    
251     /**
252     *
253     */
254 alfonx 420 public AttributeMetadataMap getAttributeMetaDataMap() {
255 alfonx 244 if (map == null) {
256    
257 alfonx 769 map = new AttributeMetadataImplMap();
258 alfonx 244
259     // Leaving out the first one, it will be the_geom
260     for (int i = 1; i < fs.getSchema().getAttributeCount(); i++) {
261 alfonx 464 AttributeDescriptor attDesc = fs.getSchema().getDescriptor(i);
262 alfonx 244
263 alfonx 770 AttributeMetadataImpl attMetaData = new AttributeMetadataImpl( new NameImpl(attDesc
264     .getName().getNamespaceURI(), attDesc
265     .getName().getLocalPart()), map.getLanguages());
266 alfonx 464 map.put(attDesc.getName(), attMetaData);
267 alfonx 244 }
268     }
269     return map;
270     }
271    
272     /**
273     * @return The {@link File} where the SLD was loaded from or
274 alfonx 426 * <code>null</code> if there didn't exist a {@link File}.
275 alfonx 244 *
276     * @author <a href="mailto:[email protected]">Stefan Alfons
277     * Kr&uuml;ger</a>
278     */
279     public File getSldFile() {
280     return sldFile;
281     }
282 alfonx 620
283 alfonx 244 public void setSldFile(File sldFile) {
284     this.sldFile = sldFile;
285     }
286    
287     /**
288     * Returns the features of the {@link FeatureSource}.
289     *
290     * @see {@link StyledFeaturesInterface}
291     */
292     @Override
293 alfonx 447 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollection() {
294     FeatureCollection<SimpleFeatureType, SimpleFeature> features;
295 alfonx 244 try {
296     features = getGeoObject().getFeatures();
297     } catch (IOException e) {
298     throw new RuntimeException(
299     "Error getting the features of the FeatureSource");
300     }
301     return features;
302     }
303    
304     /**
305     * Same as {@link #getGeoObject()} method, but complies to the
306     * {@link StyledFeaturesInterface}
307     *
308     * @see {@link StyledFeaturesInterface}
309     */
310     @Override
311 alfonx 426 public FeatureSource<SimpleFeatureType, SimpleFeature> getFeatureSource() {
312 alfonx 244 return getGeoObject();
313     }
314    
315 alfonx 426 @Override
316     public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollectionFiltered() {
317 alfonx 620 // final FeatureCollection<SimpleFeatureType, SimpleFeature> fc =
318     // getFeatureCollection();
319     // if (filter == Filter.EXCLUDE)
320     // return new EmptyFeatureCollection(fc.getSchema());
321     // if (filter == Filter.INCLUDE)
322     // return fc;
323     // return fc.subCollection(filter);
324    
325 alfonx 607 try {
326     return getFeatureSource().getFeatures(filter);
327     } catch (IOException e) {
328     throw new RuntimeException(e);
329     }
330 alfonx 426 }
331    
332     @Override
333     public Filter getFilter() {
334     return filter;
335     }
336    
337     @Override
338     public void setFilter(Filter filter) {
339     this.filter = filter;
340     }
341    
342     @Override
343     public SimpleFeatureType getSchema() {
344     return getGeoObject().getSchema();
345     }
346    
347 alfonx 244 }

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