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

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Revision 769 - (hide annotations)
Sun Mar 21 11:02:34 2010 UTC (14 years, 11 months ago) by alfonx
File size: 9306 byte(s)
Made an interface and a Abstract class for AttributeMetaData
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 alfonx 534 import java.util.HashMap;
33 alfonx 681 import java.util.List;
34 alfonx 244 import java.util.Vector;
35    
36     import org.apache.log4j.Logger;
37     import org.geotools.data.DefaultQuery;
38     import org.geotools.data.FeatureSource;
39     import org.geotools.data.Query;
40     import org.geotools.feature.FeatureCollection;
41 alfonx 335 import org.opengis.feature.simple.SimpleFeature;
42     import org.opengis.feature.simple.SimpleFeatureType;
43 alfonx 332 import org.opengis.feature.type.AttributeDescriptor;
44 alfonx 244 import org.opengis.filter.Filter;
45    
46 alfonx 534 import schmitzm.geotools.feature.FeatureUtil;
47 alfonx 244 import schmitzm.geotools.gui.FeatureCollectionTableModel;
48 alfonx 464 import skrueger.AttributeMetadata;
49 alfonx 769 import skrueger.AttributeMetadataImpl;
50 alfonx 244
51     import com.vividsolutions.jts.geom.Envelope;
52    
53     /**
54     * This class extends the the {@link FeatureCollectionTableModel} with the
55 alfonx 769 * functionalities of the {@link AttributeMetadataImpl}.
56 alfonx 244 * <ul>
57     * <li>column names are translated according to
58 alfonx 769 * {@link AttributeMetadataImpl#getTitle()}</li>
59 alfonx 244 * <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>
60 alfonx 534 * <li>Any filter defined in the {@link StyledFeaturesInterface} will be
61     * applied.</li>
62 alfonx 244 * </ul>
63     *
64 alfonx 428 * @author Stefan A. Krüger
65 alfonx 244 */
66     public class StyledFeatureCollectionTableModel extends
67     FeatureCollectionTableModel {
68     final static private Logger LOGGER = Logger
69     .getLogger(StyledFeatureCollectionTableModel.class);
70 alfonx 769 /** Contains the complete {@link AttributeMetadataImpl}-Map of the styled layer. */
71     protected AttributeMetadataMap<? extends AttributeMetadata> amdMap = null;
72 alfonx 244 /** Holds the current filter on the table */
73     protected Filter filter = null;
74     /** Holds the Bounds for all features. Only set once during the constructor **/
75     protected Envelope bounds;
76 alfonx 534 /**
77     * Tooltips für die Spaltennamen. Wird nur beim Aufruf von
78     * {@link #reorganize} befuellt.
79     */
80     protected String[] colTooltips = null;
81 alfonx 244
82 alfonx 681 /** A cache for the #sortedValuesVisibleOnly() **/
83 alfonx 769 protected List<? extends AttributeMetadata> amdMapVisibleOnly = null;
84 alfonx 681
85 alfonx 244 /**
86     * Creates a new table model for a styled layer.
87     *
88 alfonx 428 * @param styledFeatures
89 alfonx 244 * the styled layer
90     * @param filter
91     * filter applied to the table
92     */
93 alfonx 534 public StyledFeatureCollectionTableModel(
94     StyledFeaturesInterface<?> styledFeatures) {
95 alfonx 428 setStyledFeatures(styledFeatures);
96 alfonx 244 }
97    
98     /**
99 alfonx 681 * This overwritten method filters the values for NODATA-values defined in
100 alfonx 769 * the {@link AttributeMetadataImpl}
101 alfonx 681 */
102     @Override
103     public Object getValueAt(int row, int col) {
104     Object rawValue = super.getValueAt(row, col);
105     return amdMap.sortedValuesVisibleOnly().get(col).fiterNodata(rawValue);
106     }
107    
108     /**
109 alfonx 244 * Sets a new data source for the table.
110     *
111     * @param fs
112     * the feature source
113 alfonx 534 * @param amdm
114 alfonx 769 * {@link AttributeMetadataImpl}-Map to define the visible attributes
115 alfonx 244 * and translation
116     */
117 alfonx 534 protected void setFeatureSource(
118     FeatureSource<SimpleFeatureType, SimpleFeature> fs,
119 alfonx 769 AttributeMetadataMap<? extends AttributeMetadata> amdm, Filter filter) throws Exception {
120 alfonx 534
121 alfonx 244 if (filter == null)
122     filter = Filter.INCLUDE;
123    
124 alfonx 534 // this.featureSource = fs;
125 alfonx 244 this.filter = filter;
126 alfonx 534 this.amdMap = amdm;
127 alfonx 681 this.amdMapVisibleOnly = amdMap.sortedValuesVisibleOnly();
128 alfonx 244
129 alfonx 428 FeatureCollection<SimpleFeatureType, SimpleFeature> fc = null;
130 alfonx 244 if (fs != null) {
131    
132     bounds = fs.getBounds();
133    
134 alfonx 464 final SimpleFeatureType schema = fs.getSchema();
135     Query query = new DefaultQuery(schema.getTypeName(), filter);
136 alfonx 534 if (amdm != null) {
137 alfonx 244 Vector<String> visibleAttrNames = new Vector<String>();
138 alfonx 534
139 alfonx 607 // Add the column with the geometry (usually "the_geom") always
140 alfonx 534 visibleAttrNames.add(schema.getGeometryDescriptor()
141     .getLocalName());
142    
143     // Add other visible attributes as ordered by weights
144 alfonx 681 for (AttributeMetadata a : amdMapVisibleOnly) {
145 alfonx 534 visibleAttrNames.add(a.getLocalName());
146 alfonx 244 }
147    
148 alfonx 681 // Tested with 2.6.x trunk from 2009-11-26 and it now works. So
149     // we only request the properties we need!
150     // /**
151     // * I got NPEs when properties contained only [the_geom]
152     // ?!??!!??
153     // */
154     // if (properties.length > 1) {
155     query = new DefaultQuery(schema.getTypeName(), filter,
156     visibleAttrNames.toArray(new String[] {}));
157     // } else {
158     // query = new DefaultQuery(schema.getTypeName(), filter);
159     // }
160 alfonx 244 }
161     fc = fs.getFeatures(query);
162     }
163     setFeatureCollection(fc);
164     }
165    
166     /**
167     * Converts the {@code StyledFeatureCollection} to a {@code FeatureSource}
168     * and sets this as the new data source for the table.
169     *
170     * @param fs
171     * the feature source
172     * @param amd
173 alfonx 769 * {@link AttributeMetadataImpl}-Map to define the visible attributes
174 alfonx 244 * and translation
175     */
176 alfonx 428 public void setStyledFeatures(StyledFeaturesInterface<?> styledFeatures) {
177 alfonx 244 try {
178 alfonx 428 if (styledFeatures == null)
179 alfonx 244 setFeatureSource(null, null, null);
180     else {
181 alfonx 534 setFeatureSource(styledFeatures.getFeatureSource(),
182     styledFeatures.getAttributeMetaDataMap(),
183     styledFeatures.getFilter());
184 alfonx 244 }
185     } catch (Exception err) {
186     throw new RuntimeException(err);
187     }
188     }
189    
190     /**
191     * After calling {@code super.reorganize(.)} this method replaced the column
192     * descriptions with the titles of the {@code AttributeMetaData}.
193     *
194     * @param fireTableStructureChanged
195     * indicates whether a table event is initiated after reorganize
196     */
197     @Override
198     protected void reorganize(boolean fireTableStructureChanged) {
199 alfonx 534
200     featureArray = FeatureUtil.featuresToArray(featureTable);
201     if (featureArray == null || featureArray.length == 0) {
202     colNames = new String[0];
203     colTooltips = new String[0]; // Only set and used in
204 alfonx 681 // StyledFeatureCollectionTableModel
205 alfonx 534 colClass = new Class[0];
206     } else {
207     // Struktur der Tabelle vom AttributeMetaDtaaMap übernehmen
208     SimpleFeatureType schema = featureArray[0].getFeatureType();
209     // Pruefen, welche Attribute angezeigt werden
210     attrTypes.clear();
211 alfonx 681 for (AttributeMetadata amd : amdMapVisibleOnly) {
212 alfonx 534 AttributeDescriptor type = schema.getDescriptor(amd.getName());
213     if (attrFilter == null || attrFilter.accept(type))
214     attrTypes.add(type);
215     }
216     // Namen und Attribut-Indizes der angezeigten Spalten ermitteln
217     colNames = new String[attrTypes.size()];
218     colTooltips = new String[attrTypes.size()]; // Only set and used in
219 alfonx 681 // StyledFeatureCollectionTableModel
220 alfonx 534 colClass = new Class[attrTypes.size()];
221     attrIdxForCol = new int[attrTypes.size()];
222 alfonx 464 for (int i = 0; i < colNames.length; i++) {
223 alfonx 681 AttributeDescriptor descriptor = schema
224     .getDescriptor(amdMapVisibleOnly.get(i).getName());
225 alfonx 534
226     // Not so nice in 26: find the index of an attribute...
227     int idx = schema.getAttributeDescriptors().indexOf(descriptor);
228     attrIdxForCol[i] = idx;
229    
230     String attName = schema.getAttributeDescriptors().get(idx)
231     .getLocalName();
232     colNames[i] = amdMap.get(attName).getTitle().toString();
233     AttributeMetadata amd = amdMap.get(attName);
234 alfonx 681 colTooltips[i] = "<html>" + amd.getDesc().toString() + "<br>"
235     + amd.getName() + "</html>";
236     colClass[i] = schema.getAttributeDescriptors().get(idx)
237     .getType().getBinding();
238 alfonx 244 }
239     }
240 alfonx 534
241     // store feature indexes in HashMap to optimize findFeature(.)
242     featureIdx = new HashMap<String, Integer>();
243     for (int i = 0; i < featureArray.length; i++)
244     if (featureArray[i] != null)
245     featureIdx.put(featureArray[i].getID(), i);
246 alfonx 681 //
247     // // translate the column names
248     // if (amdMap != null) {
249     // for (int i = 0; i < colNames.length; i++) {
250     // colTooltips[i] = amdMap.get(colNames[i]).getDesc().toString()
251     // + "<br>" + colNames[i];
252     // colNames[i] = amdMap.get(colNames[i]).getTitle().toString();
253     //
254     // }
255     // }
256 alfonx 244 if (fireTableStructureChanged)
257     fireTableStructureChanged();
258 alfonx 534
259 alfonx 244 }
260    
261     /**
262     * @return Cached bounds for the whole dataset (without applying the filter)
263     * or <code>null</code>
264     */
265     public Envelope getBounds() {
266     return bounds;
267     }
268     }

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