/[schmitzm]/trunk/src/skrueger/geotools/StyledFeatureCollectionTableModel.java
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revision 46 by mojays, Fri Apr 17 11:44:05 2009 UTC revision 112 by mojays, Wed May 13 09:18:53 2009 UTC
# Line 1  Line 1 
1    /** SCHMITZM - This file is part of the java library of Martin O.J. Schmitz (SCHMITZM)
2    
3        This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
4        This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
5        You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
6    
7        Diese Bibliothek ist freie Software; Sie dürfen sie unter den Bedingungen der GNU Lesser General Public License, wie von der Free Software Foundation veröffentlicht, weiterverteilen und/oder modifizieren; entweder gemäß Version 2.1 der Lizenz oder (nach Ihrer Option) jeder späteren Version.
8        Diese Bibliothek wird in der Hoffnung weiterverbreitet, daß sie nützlich sein wird, jedoch OHNE IRGENDEINE GARANTIE, auch ohne die implizierte Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Mehr Details finden Sie in der GNU Lesser General Public License.
9        Sie sollten eine Kopie der GNU Lesser General Public License zusammen mit dieser Bibliothek erhalten haben; falls nicht, schreiben Sie an die Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA.
10     **/
11  package skrueger.geotools;  package skrueger.geotools;
12    
13    
14    import java.util.Iterator;
15    import java.util.Map;
16    import java.util.TreeMap;
17    import java.util.Vector;
18    
19    import org.apache.log4j.Logger;
20    import org.geotools.data.DefaultQuery;
21    import org.geotools.data.FeatureSource;
22    import org.geotools.data.Query;
23    import org.geotools.data.memory.MemoryDataStore;
24    import org.geotools.feature.FeatureCollection;
25    import org.opengis.filter.Filter;
26    
27    import com.vividsolutions.jts.geom.Envelope;
28    
29  import schmitzm.geotools.gui.FeatureCollectionTableModel;  import schmitzm.geotools.gui.FeatureCollectionTableModel;
30    import skrueger.AttributeMetaData;
31    import skrueger.i8n.I8NUtil;
32    import skrueger.i8n.Translation;
33    
34    /**
35     * This class extends the the {@link FeatureCollectionTableModel} with the
36     * functionalities of the {@link AttributeMetaData} of
37     * {@linkplain StyledMapInterface styled objects}.
38     * <ul>
39     *   <li>column names are translated according to {@link AttributeMetaData#getTitle()}</li>
40     *   <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>
41     * </ul>
42     * @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)
43     */
44  public class StyledFeatureCollectionTableModel extends FeatureCollectionTableModel {  public class StyledFeatureCollectionTableModel extends FeatureCollectionTableModel {
45        final static private Logger LOGGER = Logger.getLogger(StyledFeatureCollectionTableModel.class);
46      /** Holds the data source as styled map. */
47      protected StyledMapInterface<?> map = null;
48      /** Contains only the visible elements of the {@link AttributeMetaData}-Map */
49      protected Map<Integer, AttributeMetaData> visibleAMD = null;
50      /** Holds the data source for the table as {@code FeatureSource}. */
51      protected FeatureSource featureSource = null;
52      /** Contains the complete {@link AttributeMetaData}-Map of the styled layer. */
53      protected Map<Integer, AttributeMetaData> origAMD = null;
54      /** Holds the current filter on the table */
55      protected Filter filter = null;
56      /** Holds the Bounds for all features. Only set once during the constructor **/
57      protected Envelope bounds;
58    
59      /**
60       * Creates a new table model for a styled map.
61       * @param map the styled map
62       */
63    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {
64      super(null);      this(map,Filter.INCLUDE);
65    }    }
66      
67      /**
68       * Creates a new table model for a styled map.
69       * @param map the styled map
70       * @param filter filter applied to the table
71       */
72      public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map, Filter filter) {
73        super();
74        setFeatureCollection(map, filter);
75      }
76    
77      /**
78       * Creates a new table model for a styled map.
79       * @param map the styled map
80       */
81    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {
82      super(null);      this(map,Filter.INCLUDE);
83    }    }
84    
85    public String[] createColumnNames() {    /**
86      return new String[0];     * Creates a new table model for a styled map.
87       * @param map the styled map
88       * @param filter filter applied to the table
89       */
90      public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map, Filter filter) {
91        super();
92        setFeatureCollection(map, filter);
93      }
94    
95      /**
96       * Sets a new data source for the table.
97       * @param fs     the feature source
98       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
99       *               and translation
100       */
101      protected void setFeatureSource(FeatureSource fs, Map<Integer, AttributeMetaData> amd, Filter filter) throws Exception {
102        if ( filter == null )
103          filter = Filter.INCLUDE;
104        
105        this.featureSource = fs;
106        this.filter        = filter;
107        this.origAMD       = amd;
108        this.visibleAMD    = null;
109        
110        FeatureCollection fc = null;
111        if (fs != null) {
112            
113           bounds = fs.getBounds();
114            
115          Query query = new DefaultQuery(fs.getSchema().getTypeName(), filter);
116          if (amd != null) {
117            // determine the names of the visible Attributes
118            this.visibleAMD = StyledMapUtil.getVisibleAttributeMetaData(amd, true);
119            Vector<String> visibleAttrNames = new Vector<String>();
120            // Add the column with the geometry (usually "the_geom")
121            visibleAttrNames.add(fs.getSchema().getDefaultGeometry().getLocalName());
122            for (int attrIdx : visibleAMD.keySet())
123              visibleAttrNames.add(fs.getSchema().getAttributeType(attrIdx).getLocalName());
124    
125            // create a query for the visible attributes
126            String[] properties = visibleAttrNames.toArray(new String[0]);
127            
128            LOGGER.debug("Query contains the following attributes: " + visibleAttrNames);
129            
130            query = new DefaultQuery(fs.getSchema().getTypeName(), filter, properties);
131          }
132          fc = fs.getFeatures(query);
133    
134    // FAILS:!!!, even with  query = new DefaultQuery(fs.getSchema().getTypeName(), filter);
135                            // java.lang.UnsupportedOperationException: Unknown feature
136                            // attribute: PQM_MOD
137                            // at
138                            // schmitzm.geotools.feature.FeatureOperationTree.evaluate(FeatureOperationTree.java:93)
139                            // bounds = fc.getBounds();
140                            // SK, 17.4.2009
141                            //      
142                            // System.out.println("Filter = "+filter);
143                            // System.out.println("Size of FC = "+fc.size());
144                            // System.out.println("anz att= "+fc.getNumberOfAttributes());
145        }
146        setFeatureCollection(fc);
147      }
148    
149      /**
150       * Converts the {@code StyledFeatureCollection} to a {@code FeatureSource}
151       * and sets this as the new data source for the table.
152       * @param fs     the feature source
153       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
154       *               and translation
155       */
156      public void setFeatureCollection(StyledFeatureCollectionInterface map, Filter filter) {
157        this.map = map;
158        try {
159          if (map == null)
160            setFeatureSource(null, null, null);
161          else {
162            FeatureCollection fc = map.getGeoObject();
163            String fcName = fc.getSchema().getTypeName();
164            FeatureSource fs = new MemoryDataStore(fc).getFeatureSource(fcName);
165            setFeatureSource(fs, map.getAttributeMetaDataMap(), filter);
166          }
167        } catch (Exception err) {
168          throw new RuntimeException(err);
169        }
170      }
171    
172      /**
173       * Sets the {@code StyledFeatureCollection} as new data source for the table.
174       * @param fs     the feature source
175       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
176       *               and translation
177       */
178      public void setFeatureCollection(StyledFeatureSourceInterface map, Filter filter) {
179        this.map = map;
180        try {
181          if (map == null)
182            setFeatureSource(null, null, null);
183          else
184            setFeatureSource(map.getGeoObject(), map.getAttributeMetaDataMap(), filter);
185        } catch (Exception err) {
186          throw new RuntimeException(err);
187        }
188    }    }
189        
190    public int getRowCount() {    /**
191      return 0;     * Resets the filter for the table.
192       * @param filter a filter
193       */
194      public void setFilter(Filter filter) {
195        try{
196          setFeatureSource(this.featureSource, this.origAMD, filter);
197        } catch (Exception err) {
198            LOGGER.error("Setting the filter of the table model", err);
199          throw new RuntimeException(err);
200        }
201    }    }
202        
203    public Object getValueAt(int row, int col) {    /**
204      return "";     * @return <code>Filter.INCLUDE</code> or the {@link Filter} applied to the Features
205       */
206      public Filter getFilter() {
207              return this.filter;
208    }    }
209    
210      /**
211       * After calling {@code super.reorganize(.)} this method replaced the
212       * column descriptions with the titles of the {@code AttributeMetaData}.
213       * @param fireTableStructureChanged indicates whether a table event is
214       *        initiated after reorganize
215       */
216      @Override
217      protected void reorganize(boolean fireTableStructureChanged) {
218        super.reorganize(false);
219        // translate the column names
220        if (visibleAMD != null) {
221          Iterator<Integer> keys = visibleAMD.keySet().iterator();
222          for (int i = 0; i < colNames.length && keys.hasNext(); i++) {
223            Translation title = visibleAMD.get(keys.next()).getTitle();
224            if (!I8NUtil.isEmpty(title)) {
225    //          System.out.println("set colname " + i + " to " + title.toString());
226              colNames[i] = title.toString();
227            }
228          }
229        }
230        if ( fireTableStructureChanged )
231          fireTableStructureChanged();
232      }
233    
234      /**
235             * @returns Cached bounds for the whole dataset (without applying the
236             *          filter) or <code>null</code>
237             */
238            public Envelope getBounds() {
239                    return bounds;
240            }
241  }  }
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