/[schmitzm]/trunk/src/skrueger/geotools/StyledFeatureCollectionTableModel.java
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trunk/src/skrueger/geotools/StyledFeatureCollectionTableModel.java revision 55 by mojays, Fri Apr 17 14:26:14 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  /**  
32   * This class extends the the {@link FeatureCollectionTableModel} with the  import java.util.Vector;
33   * functionalities of the {@link AttributeMetaData} of {@linkplain StyledMapInterface styled objects}.  
34   * <ul>  import org.apache.log4j.Logger;
35   *   <li>column names are translated according to {@link AttributeMetaData#getTitle()}</li>  import org.geotools.data.DefaultQuery;
36   *   <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>  import org.geotools.data.FeatureSource;
37   * </ul>  import org.geotools.data.Query;
38   * @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)  import org.geotools.feature.FeatureCollection;
39   *  import org.opengis.feature.simple.SimpleFeature;
40   */  import org.opengis.feature.simple.SimpleFeatureType;
41  public class StyledFeatureCollectionTableModel extends FeatureCollectionTableModel {  import org.opengis.feature.type.AttributeDescriptor;
42      import org.opengis.filter.Filter;
43    protected Map<Integer,AttributeMetaData> visibleAMD = null;  
44      import schmitzm.geotools.gui.FeatureCollectionTableModel;
45    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {  import skrueger.AttributeMetadata;
46      super();  
47      setFeatureCollection(map);  import com.vividsolutions.jts.geom.Envelope;
48    }  
49      /**
50    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {   * This class extends the the {@link FeatureCollectionTableModel} with the
51      super();   * functionalities of the {@link AttributeMetadata}.
52      setFeatureCollection(map);   * <ul>
53    }   * <li>column names are translated according to
54       * {@link AttributeMetadata#getTitle()}</li>
55    protected void setFeatureSource(FeatureSource fs, Map<Integer,AttributeMetaData> amd) throws Exception {   * <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>
56      FeatureCollection fc = null;   * <li>Any filter defined in the {@link StyledFeaturesInterface} will be applied.</li>
57      this.visibleAMD      = null;   * </ul>
58      if ( fs != null ) {   *
59        Query query = new DefaultQuery();   * @author Stefan A. Krüger
60        if ( amd != null ) {   */
61          // determine the names of the visible Attributes  public class StyledFeatureCollectionTableModel extends
62          this.visibleAMD = StyledMapUtil.getVisibleAttributeMetaData(amd, true);                  FeatureCollectionTableModel {
63          Vector<String> visibleAttrNames = new Vector<String>();          final static private Logger LOGGER = Logger
64          for ( int attrIdx : visibleAMD.keySet() )                          .getLogger(StyledFeatureCollectionTableModel.class);
65            visibleAttrNames.add( fs.getSchema().getAttributeType(attrIdx).getLocalName() );          /** Contains the complete {@link AttributeMetadata}-Map of the styled layer. */
66          // create a query for the visible attributes            protected AttributeMetadataMap origAMD = null;
67          query = new DefaultQuery(          /** Holds the current filter on the table */
68                         fs.getSchema().getTypeName(),          protected Filter filter = null;
69                         Filter.INCLUDE,          /** Holds the Bounds for all features. Only set once during the constructor **/
70                         visibleAttrNames.toArray(new String[0])          protected Envelope bounds;
71          );  
72        }          
73        fc = fs.getFeatures(query);          /**
74      }           * Creates a new table model for a styled layer.
75      setFeatureCollection( fc );           *
76    }           * @param styledFeatures
77               *            the styled layer
78    public void setFeatureCollection(StyledFeatureCollectionInterface map) {           * @param filter
79      try {           *            filter applied to the table
80        if ( map == null )           */
81          setFeatureSource(null,null);          public StyledFeatureCollectionTableModel(StyledFeaturesInterface<?> styledFeatures) {
82        else {                  setStyledFeatures(styledFeatures);
83          FeatureCollection fc     = map.getGeoObject();          }
84          String            fcName = fc.getFeatureType().getTypeName();  
85          FeatureSource     fs     = new MemoryDataStore(fc).getFeatureSource(fcName);          /**
86          setFeatureSource(fs, map.getAttributeMetaDataMap());           * Sets a new data source for the table.
87        }           *
88      } catch (Exception err) {           * @param fs
89        throw new RuntimeException(err);           *            the feature source
90      }           * @param amd
91    }           *            {@link AttributeMetadata}-Map to define the visible attributes
92               *            and translation
93    public void setFeatureCollection(StyledFeatureSourceInterface map) {           */
94      try {          protected void setFeatureSource(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
95        if ( map == null )                          AttributeMetadataMap amd, Filter filter)
96          setFeatureSource(null,null);                          throws Exception {
97        else                  
98          setFeatureSource(map.getGeoObject(), map.getAttributeMetaDataMap());                  if (filter == null)
99      } catch (Exception err) {                          filter = Filter.INCLUDE;
100        throw new RuntimeException(err);  
101      }  //              this.featureSource = fs;
102    }                  this.filter = filter;
103                      this.origAMD = amd;
104    @Override  
105    public void reorganize() {                  FeatureCollection<SimpleFeatureType, SimpleFeature> fc = null;
106      super.reorganize();                  if (fs != null) {
107      // translate the column names  
108      if ( visibleAMD != null ) {                          bounds = fs.getBounds();
109        Iterator<Integer> keys = visibleAMD.keySet().iterator();  
110        for (int i=0; i<colNames.length && keys.hasNext(); i++) {                          final SimpleFeatureType schema = fs.getSchema();
111          Translation title = visibleAMD.get( keys.next() ).getTitle();                          Query query = new DefaultQuery(schema.getTypeName(), filter);
112          if ( !I8NUtil.isEmpty(title) )                          if (amd != null) {
113            colNames[i] = title.toString();                                  Vector<String> visibleAttrNames = new Vector<String>();
114        }                                  // Add the column with the geometry (usually "the_geom")
115      }                                  
116    }                                  for (AttributeDescriptor aDesc : schema.getAttributeDescriptors()) {
117  }                                          
118                                            // Always add the geometry
119                                            if (schema.getGeometryDescriptor()
120                                                    .getName().equals(aDesc.getName())) {
121                                                    visibleAttrNames.add(schema.getGeometryDescriptor()
122                                                                    .getLocalName());
123                                                    continue;
124                                            }
125                                            
126                                            if (amd.get(aDesc.getName()).isVisible())
127                                                    visibleAttrNames.add(aDesc.getName().getLocalPart());
128                                    }
129    
130                                    // create a query for the visible attributes
131                                    String[] properties = visibleAttrNames.toArray(new String[] {});
132    
133                                    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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