/[schmitzm]/branches/2.0-GP14/src/skrueger/geotools/StyledFeatureCollectionTableModel.java
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revision 46 by mojays, Fri Apr 17 11:44:05 2009 UTC revision 127 by mojays, Sat May 30 14:29:58 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.Vector;
17    
18    import org.apache.log4j.Logger;
19    import org.geotools.data.DefaultQuery;
20    import org.geotools.data.FeatureSource;
21    import org.geotools.data.Query;
22    import org.geotools.data.memory.MemoryDataStore;
23    import org.geotools.feature.FeatureCollection;
24    import org.opengis.filter.Filter;
25    
26  import schmitzm.geotools.gui.FeatureCollectionTableModel;  import schmitzm.geotools.gui.FeatureCollectionTableModel;
27    import skrueger.AttributeMetaData;
28    import skrueger.i8n.I8NUtil;
29    import skrueger.i8n.Translation;
30    
31    import com.vividsolutions.jts.geom.Envelope;
32    
33    /**
34     * This class extends the the {@link FeatureCollectionTableModel} with the
35     * functionalities of the {@link AttributeMetaData} of
36     * {@linkplain StyledMapInterface styled objects}.
37     * <ul>
38     *   <li>column names are translated according to {@link AttributeMetaData#getTitle()}</li>
39     *   <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>
40     * </ul>
41     * @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)
42     */
43  public class StyledFeatureCollectionTableModel extends FeatureCollectionTableModel {  public class StyledFeatureCollectionTableModel extends FeatureCollectionTableModel {
44        final static private Logger LOGGER = Logger.getLogger(StyledFeatureCollectionTableModel.class);
45      /** Holds the data source as styled map. */
46      protected StyledMapInterface<?> map = null;
47      /** Contains only the visible elements of the {@link AttributeMetaData}-Map */
48      protected Map<Integer, AttributeMetaData> visibleAMD = null;
49      /** Holds the data source for the table as {@code FeatureSource}. */
50      protected FeatureSource featureSource = null;
51      /** Contains the complete {@link AttributeMetaData}-Map of the styled layer. */
52      protected Map<Integer, AttributeMetaData> origAMD = null;
53      /** Holds the current filter on the table */
54      protected Filter filter = null;
55      /** Holds the Bounds for all features. Only set once during the constructor **/
56      protected Envelope bounds;
57    
58      /**
59       * Creates a new table model for a styled map.
60       * @param map the styled map
61       */
62    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {
63      super(null);      this(map,Filter.INCLUDE);
64    }    }
65      
66      /**
67       * Creates a new table model for a styled map.
68       * @param map the styled map
69       * @param filter filter applied to the table
70       */
71      public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map, Filter filter) {
72        super();
73        setFeatureCollection(map, filter);
74      }
75    
76      /**
77       * Creates a new table model for a styled map.
78       * @param map the styled map
79       */
80    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {
81      super(null);      this(map,Filter.INCLUDE);
82    }    }
83    
84    public String[] createColumnNames() {    /**
85      return new String[0];     * Creates a new table model for a styled map.
86       * @param map the styled map
87       * @param filter filter applied to the table
88       */
89      public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map, Filter filter) {
90        super();
91        setFeatureCollection(map, filter);
92      }
93    
94      /**
95       * Sets a new data source for the table.
96       * @param fs     the feature source
97       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
98       *               and translation
99       */
100      protected void setFeatureSource(FeatureSource fs, Map<Integer, AttributeMetaData> amd, Filter filter) throws Exception {
101        if ( filter == null )
102          filter = Filter.INCLUDE;
103        
104        this.featureSource = fs;
105        this.filter        = filter;
106        this.origAMD       = amd;
107        this.visibleAMD    = null;
108        
109        FeatureCollection fc = null;
110        if (fs != null) {
111            
112           bounds = fs.getBounds();
113            
114          Query query = new DefaultQuery(fs.getSchema().getTypeName(), filter);
115          if (amd != null) {
116            // determine the names of the visible Attributes
117            this.visibleAMD = StyledMapUtil.getVisibleAttributeMetaData(amd, true);
118            Vector<String> visibleAttrNames = new Vector<String>();
119            // Add the column with the geometry (usually "the_geom")
120            visibleAttrNames.add(fs.getSchema().getDefaultGeometry().getLocalName());
121            for (int attrIdx : visibleAMD.keySet())
122              visibleAttrNames.add(fs.getSchema().getAttributeType(attrIdx).getLocalName());
123    
124            // create a query for the visible attributes
125            String[] properties = visibleAttrNames.toArray(new String[0]);
126            
127            LOGGER.debug("Query contains the following attributes: " + visibleAttrNames);
128            
129            query = new DefaultQuery(fs.getSchema().getTypeName(), filter, properties);
130          }
131          fc = fs.getFeatures(query);
132    
133    // FAILS:!!!, even with  query = new DefaultQuery(fs.getSchema().getTypeName(), filter);
134                            // java.lang.UnsupportedOperationException: Unknown feature
135                            // attribute: PQM_MOD
136                            // at
137                            // schmitzm.geotools.feature.FeatureOperationTree.evaluate(FeatureOperationTree.java:93)
138                            // bounds = fc.getBounds();
139                            // SK, 17.4.2009
140                            //      
141                            // System.out.println("Filter = "+filter);
142                            // System.out.println("Size of FC = "+fc.size());
143                            // System.out.println("anz att= "+fc.getNumberOfAttributes());
144        }
145        setFeatureCollection(fc);
146      }
147    
148      /**
149       * Converts the {@code StyledFeatureCollection} to a {@code FeatureSource}
150       * and sets this as the new data source for the table.
151       * @param fs     the feature source
152       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
153       *               and translation
154       */
155      public void setFeatureCollection(StyledFeatureCollectionInterface map, Filter filter) {
156        this.map = map;
157        try {
158          if (map == null)
159            setFeatureSource(null, null, null);
160          else {
161            FeatureCollection fc = map.getGeoObject();
162            String fcName = fc.getSchema().getTypeName();
163            FeatureSource fs = new MemoryDataStore(fc).getFeatureSource(fcName);
164            setFeatureSource(fs, map.getAttributeMetaDataMap(), filter);
165          }
166        } catch (Exception err) {
167          throw new RuntimeException(err);
168        }
169      }
170    
171      /**
172       * Sets the {@code StyledFeatureCollection} as new data source for the table.
173       * @param fs     the feature source
174       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
175       *               and translation
176       */
177      public void setFeatureCollection(StyledFeatureSourceInterface map, Filter filter) {
178        this.map = map;
179        try {
180          if (map == null)
181            setFeatureSource(null, null, null);
182          else
183            setFeatureSource(map.getGeoObject(), map.getAttributeMetaDataMap(), filter);
184        } catch (Exception err) {
185          throw new RuntimeException(err);
186        }
187    }    }
188        
189    public int getRowCount() {    /**
190      return 0;     * Resets the filter for the table.
191       * @param filter a filter
192       */
193      public void setFilter(Filter filter) {
194        try{
195          setFeatureSource(this.featureSource, this.origAMD, filter);
196        } catch (Exception err) {
197            LOGGER.error("Setting the filter of the table model", err);
198          throw new RuntimeException(err);
199        }
200    }    }
201        
202    public Object getValueAt(int row, int col) {    /**
203      return "";     * @return <code>Filter.INCLUDE</code> or the {@link Filter} applied to the Features
204       */
205      public Filter getFilter() {
206              return this.filter;
207    }    }
208    
209      /**
210       * After calling {@code super.reorganize(.)} this method replaced the
211       * column descriptions with the titles of the {@code AttributeMetaData}.
212       * @param fireTableStructureChanged indicates whether a table event is
213       *        initiated after reorganize
214       */
215      @Override
216      protected void reorganize(boolean fireTableStructureChanged) {
217        super.reorganize(false);
218        // translate the column names
219        if (visibleAMD != null) {
220          Iterator<Integer> keys = visibleAMD.keySet().iterator();
221          for (int i = 0; i < colNames.length && keys.hasNext(); i++) {
222            Translation title = visibleAMD.get(keys.next()).getTitle();
223            if (!I8NUtil.isEmpty(title)) {
224    //          System.out.println("set colname " + i + " to " + title.toString());
225              colNames[i] = title.toString();
226            }
227          }
228        }
229        if ( fireTableStructureChanged )
230          fireTableStructureChanged();
231      }
232    
233      /**
234             * @returns Cached bounds for the whole dataset (without applying the
235             *          filter) or <code>null</code>
236             */
237            public Envelope getBounds() {
238                    return bounds;
239            }
240  }  }
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