/[schmitzm]/trunk/src/skrueger/geotools/StyledFeatureCollectionTableModel.java
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trunk/src/skrueger/geotools/StyledFeatureCollectionTableModel.java revision 57 by mojays, Fri Apr 17 15:26:14 2009 UTC branches/1.0-gt2-2.6/src/skrueger/geotools/StyledFeatureCollectionTableModel.java revision 490 by alfonx, Fri Oct 23 12:35:59 2009 UTC
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1  /** SCHMITZM - This file is part of the java library of Martin O.J. Schmitz (SCHMITZM)  /*******************************************************************************
2     * Copyright (c) 2009 Martin O. J. Schmitz.
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.   * This file is part of the SCHMITZM library - a collection of utility
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   * classes based on Java 1.6, focusing (not only) on Java Swing
6     * and the Geotools library.
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.   * The SCHMITZM project is hosted at:
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.   * http://wald.intevation.org/projects/schmitzm/
10   **/   *
11  package skrueger.geotools;   * 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  import java.util.Iterator;   * as published by the Free Software Foundation; either version 3
14  import java.util.Map;   * of the License, or (at your option) any later version.
15  import java.util.TreeMap;   *
16  import java.util.Vector;   * This program is distributed in the hope that it will be useful,
17     * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  import org.geotools.data.DefaultQuery;   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  import org.geotools.data.FeatureSource;   * GNU General Public License for more details.
20  import org.geotools.data.Query;   *
21  import org.geotools.data.memory.MemoryDataStore;   * You should have received a copy of the GNU Lesser General Public License (license.txt)
22  import org.geotools.feature.FeatureCollection;   * along with this program; if not, write to the Free Software
23  import org.opengis.filter.Filter;   * 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  import schmitzm.geotools.gui.FeatureCollectionTableModel;   *
26  import skrueger.AttributeMetaData;   * Contributors:
27  import skrueger.i8n.I8NUtil;   *     Martin O. J. Schmitz - initial API and implementation
28  import skrueger.i8n.Translation;   *     Stefan A. Krüger - additional utility classes
29     ******************************************************************************/
30  /**  package skrueger.geotools;
31   * This class extends the the {@link FeatureCollectionTableModel} with the  
32   * functionalities of the {@link AttributeMetaData} of  import java.util.Vector;
33   * {@linkplain StyledMapInterface styled objects}.  
34   * <ul>  import org.apache.log4j.Logger;
35   * <li>column names are translated according to  import org.geotools.data.DefaultQuery;
36   * {@link AttributeMetaData#getTitle()}</li>  import org.geotools.data.FeatureSource;
37   * <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>  import org.geotools.data.Query;
38   * </ul>  import org.geotools.feature.FeatureCollection;
39   *  import org.opengis.feature.simple.SimpleFeature;
40   * @author <a href="mailto:[email protected]">Martin Schmitz</a>  import org.opengis.feature.simple.SimpleFeatureType;
41   *         (University of Bonn/Germany)  import org.opengis.feature.type.AttributeDescriptor;
42   *  import org.opengis.filter.Filter;
43   */  
44  public class StyledFeatureCollectionTableModel extends  import schmitzm.geotools.gui.FeatureCollectionTableModel;
45      FeatureCollectionTableModel {  import skrueger.AttributeMetadata;
46    
47    protected Map<Integer, AttributeMetaData> visibleAMD = null;  import com.vividsolutions.jts.geom.Envelope;
48    
49    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {  /**
50      this(map,Filter.INCLUDE);   * This class extends the the {@link FeatureCollectionTableModel} with the
51    }   * functionalities of the {@link AttributeMetadata}.
52     * <ul>
53    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map, Filter filter) {   * <li>column names are translated according to
54      super();   * {@link AttributeMetadata#getTitle()}</li>
55      setFeatureCollection(map, filter);   * <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>
56    }   * <li>Any filter defined in the {@link StyledFeaturesInterface} will be applied.</li>
57     * </ul>
58    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {   *
59      this(map,Filter.INCLUDE);   * @author Stefan A. Krüger
60    }   */
61    public class StyledFeatureCollectionTableModel extends
62    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map, Filter filter) {                  FeatureCollectionTableModel {
63      super();          final static private Logger LOGGER = Logger
64      setFeatureCollection(map, filter);                          .getLogger(StyledFeatureCollectionTableModel.class);
65    }          /** Contains the complete {@link AttributeMetadata}-Map of the styled layer. */
66            protected AttributeMetadataMap origAMD = null;
67    protected void setFeatureSource(FeatureSource fs, Map<Integer, AttributeMetaData> amd, Filter filter) throws Exception {          /** Holds the current filter on the table */
68      this.visibleAMD = null;          protected Filter filter = null;
69      if ( filter == null )          /** Holds the Bounds for all features. Only set once during the constructor **/
70        filter = Filter.INCLUDE;          protected Envelope bounds;
71        
72      FeatureCollection fc = null;          
73      if (fs != null) {          /**
74        Query query = new DefaultQuery();           * Creates a new table model for a styled layer.
75        if (amd != null) {           *
76          // determine the names of the visible Attributes           * @param styledFeatures
77          this.visibleAMD = StyledMapUtil.getVisibleAttributeMetaData(amd, true);           *            the styled layer
78          Vector<String> visibleAttrNames = new Vector<String>();           * @param filter
79          // Add the column with the geometry (usually "the_geom")           *            filter applied to the table
80          visibleAttrNames.add(fs.getSchema().getDefaultGeometry().getLocalName());           */
81          for (int attrIdx : visibleAMD.keySet())          public StyledFeatureCollectionTableModel(StyledFeaturesInterface<?> styledFeatures) {
82            visibleAttrNames.add(fs.getSchema().getAttributeType(attrIdx).getLocalName());                  setStyledFeatures(styledFeatures);
83            }
84          // create a query for the visible attributes  
85          String[] properties = visibleAttrNames.toArray(new String[0]);          /**
86          query = new DefaultQuery(fs.getSchema().getTypeName(), filter, properties);           * Sets a new data source for the table.
87        }           *
88        fc = fs.getFeatures(query);           * @param fs
89      }           *            the feature source
90      setFeatureCollection(fc);           * @param amd
91    }           *            {@link AttributeMetadata}-Map to define the visible attributes
92             *            and translation
93    public void setFeatureCollection(StyledFeatureCollectionInterface map, Filter filter) {           */
94      try {          protected void setFeatureSource(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
95        if (map == null)                          AttributeMetadataMap amd, Filter filter)
96          setFeatureSource(null, null, null);                          throws Exception {
97        else {                  
98          FeatureCollection fc = map.getGeoObject();                  if (filter == null)
99          String fcName = fc.getFeatureType().getTypeName();                          filter = Filter.INCLUDE;
100          FeatureSource fs = new MemoryDataStore(fc).getFeatureSource(fcName);  
101          setFeatureSource(fs, map.getAttributeMetaDataMap(), filter);  //              this.featureSource = fs;
102        }                  this.filter = filter;
103      } catch (Exception err) {                  this.origAMD = amd;
104        throw new RuntimeException(err);  
105      }                  FeatureCollection<SimpleFeatureType, SimpleFeature> fc = null;
106    }                  if (fs != null) {
107    
108    public void setFeatureCollection(StyledFeatureSourceInterface map, Filter filter) {                          bounds = fs.getBounds();
109      try {  
110        if (map == null)                          final SimpleFeatureType schema = fs.getSchema();
111          setFeatureSource(null, null, null);                          Query query = new DefaultQuery(schema.getTypeName(), filter);
112        else                          if (amd != null) {
113          setFeatureSource(map.getGeoObject(), map.getAttributeMetaDataMap(), filter);                                  Vector<String> visibleAttrNames = new Vector<String>();
114      } catch (Exception err) {                                  // Add the column with the geometry (usually "the_geom")
115        throw new RuntimeException(err);                                  
116      }                                  for (AttributeDescriptor aDesc : schema.getAttributeDescriptors()) {
117    }                                          
118                                            // Always add the geometry
119    @Override                                          if (schema.getGeometryDescriptor()
120    public void reorganize() {                                                  .getName().equals(aDesc.getName())) {
121      super.reorganize();                                                  visibleAttrNames.add(schema.getGeometryDescriptor()
122      // translate the column names                                                                  .getLocalName());
123      if (visibleAMD != null) {                                                  continue;
124        Iterator<Integer> keys = visibleAMD.keySet().iterator();                                          }
125        for (int i = 0; i < colNames.length && keys.hasNext(); i++) {                                          
126          Translation title = visibleAMD.get(keys.next()).getTitle();                                          if (amd.get(aDesc.getName()).isVisible())
127          if (!I8NUtil.isEmpty(title)) {                                                  visibleAttrNames.add(aDesc.getName().getLocalPart());
128            System.out.println("set colname " + i + " to " + title.toString());                                  }
129            colNames[i] = title.toString();  
130          }                                  // create a query for the visible attributes
131        }                                  String[] properties = visibleAttrNames.toArray(new String[] {});
132      }  
133      fireTableStructureChanged();                                  LOGGER.debug("Query contains the following attributes: "
134    }                                                  + visibleAttrNames);
135  }  
136    
137                                    /**
138                                     * I got NPEs when properties contained only [the_geom] ?!??!!??
139                                     */
140                                    if (properties.length > 1) {
141                                            query = new DefaultQuery(schema.getTypeName(), filter,
142                                                            properties);
143                                    } else {
144                                            query = new DefaultQuery(schema.getTypeName(), filter);
145                                    }
146                            }
147                            fc = fs.getFeatures(query);
148                    }
149                    setFeatureCollection(fc);
150            }
151    
152            /**
153             * Converts the {@code StyledFeatureCollection} to a {@code FeatureSource}
154             * and sets this as the new data source for the table.
155             *
156             * @param fs
157             *            the feature source
158             * @param amd
159             *            {@link AttributeMetadata}-Map to define the visible attributes
160             *            and translation
161             */
162            public void setStyledFeatures(StyledFeaturesInterface<?> styledFeatures) {
163                    try {
164                            if (styledFeatures == null)
165                                    setFeatureSource(null, null, null);
166                            else {
167                                    setFeatureSource(styledFeatures.getFeatureSource(), styledFeatures.getAttributeMetaDataMap(), styledFeatures.getFilter());
168                            }
169                    } catch (Exception err) {
170                            throw new RuntimeException(err);
171                    }
172            }
173    
174            /**
175             * After calling {@code super.reorganize(.)} this method replaced the column
176             * descriptions with the titles of the {@code AttributeMetaData}.
177             *
178             * @param fireTableStructureChanged
179             *            indicates whether a table event is initiated after reorganize
180             */
181            @Override
182            protected void reorganize(boolean fireTableStructureChanged) {
183                    
184                    super.reorganize(false);
185                    
186                    // translate the column names
187                    if (origAMD != null) {
188                            for (int i = 0; i < colNames.length; i++) {
189                                    colNames[i] = origAMD.get(colNames[i]).getTitle().toString();
190                            }
191                            
192                    }
193                    if (fireTableStructureChanged)
194                            fireTableStructureChanged();
195            }
196    
197            /**
198             * @return Cached bounds for the whole dataset (without applying the filter)
199             *         or <code>null</code>
200             */
201            public Envelope getBounds() {
202                    return bounds;
203            }
204    }

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