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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 428 by alfonx, Sun Oct 4 14:28:07 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.Iterator;
33   * functionalities of the {@link AttributeMetaData} of {@linkplain StyledMapInterface styled objects}.  import java.util.Map;
34   * <ul>  import java.util.Vector;
35   *   <li>column names are translated according to {@link AttributeMetaData#getTitle()}</li>  
36   *   <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>  import org.apache.log4j.Logger;
37   * </ul>  import org.geotools.data.DefaultQuery;
38   * @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)  import org.geotools.data.FeatureSource;
39   *  import org.geotools.data.Query;
40   */  import org.geotools.feature.FeatureCollection;
41  public class StyledFeatureCollectionTableModel extends FeatureCollectionTableModel {  import org.opengis.feature.simple.SimpleFeature;
42      import org.opengis.feature.simple.SimpleFeatureType;
43    protected Map<Integer,AttributeMetaData> visibleAMD = null;  import org.opengis.feature.type.AttributeDescriptor;
44      import org.opengis.filter.Filter;
45    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {  
46      super();  import schmitzm.geotools.gui.FeatureCollectionTableModel;
47      setFeatureCollection(map);  import skrueger.AttributeMetaData;
48    }  import skrueger.i8n.I8NUtil;
49      import skrueger.i8n.Translation;
50    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {  
51      super();  import com.vividsolutions.jts.geom.Envelope;
52      setFeatureCollection(map);  
53    }  /**
54       * This class extends the the {@link FeatureCollectionTableModel} with the
55    protected void setFeatureSource(FeatureSource fs, Map<Integer,AttributeMetaData> amd) throws Exception {   * functionalities of the {@link AttributeMetaData}.
56      FeatureCollection fc = null;   * <ul>
57      this.visibleAMD      = null;   * <li>column names are translated according to
58      if ( fs != null ) {   * {@link AttributeMetaData#getTitle()}</li>
59        Query query = new DefaultQuery();   * <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>
60        if ( amd != null ) {   * <li>Any filter defined in the {@link StyledFeaturesInterface} will be applied.</li>
61          // determine the names of the visible Attributes   * </ul>
62          this.visibleAMD = StyledMapUtil.getVisibleAttributeMetaData(amd, true);   *
63          Vector<String> visibleAttrNames = new Vector<String>();   * @author Stefan A. Krüger
64          for ( int attrIdx : visibleAMD.keySet() )   */
65            visibleAttrNames.add( fs.getSchema().getAttributeType(attrIdx).getLocalName() );  public class StyledFeatureCollectionTableModel extends
66          // create a query for the visible attributes                    FeatureCollectionTableModel {
67          query = new DefaultQuery(          final static private Logger LOGGER = Logger
68                         fs.getSchema().getTypeName(),                          .getLogger(StyledFeatureCollectionTableModel.class);
69                         Filter.INCLUDE,          /** Contains only the visible elements of the {@link AttributeMetaData}-Map */
70                         visibleAttrNames.toArray(new String[0])          protected Map<Integer, AttributeMetaData> visibleAMD = null;
71          );  //      /** Holds the data source for the table as {@code FeatureSource}. */
72        }  //      protected FeatureSource featureSource = null;
73        fc = fs.getFeatures(query);          /** Contains the complete {@link AttributeMetaData}-Map of the styled layer. */
74      }          protected Map<Integer, AttributeMetaData> origAMD = null;
75      setFeatureCollection( fc );          /** Holds the current filter on the table */
76    }          protected Filter filter = null;
77              /** Holds the Bounds for all features. Only set once during the constructor **/
78    public void setFeatureCollection(StyledFeatureCollectionInterface map) {          protected Envelope bounds;
79      try {  
80        if ( map == null )          
81          setFeatureSource(null,null);          /**
82        else {           * Creates a new table model for a styled layer.
83          FeatureCollection fc     = map.getGeoObject();           *
84          String            fcName = fc.getFeatureType().getTypeName();           * @param styledFeatures
85          FeatureSource     fs     = new MemoryDataStore(fc).getFeatureSource(fcName);           *            the styled layer
86          setFeatureSource(fs, map.getAttributeMetaDataMap());           * @param filter
87        }           *            filter applied to the table
88      } catch (Exception err) {           */
89        throw new RuntimeException(err);          public StyledFeatureCollectionTableModel(StyledFeaturesInterface<?> styledFeatures) {
90      }                  setStyledFeatures(styledFeatures);
91    }          }
92      
93    public void setFeatureCollection(StyledFeatureSourceInterface map) {          /**
94      try {           * Sets a new data source for the table.
95        if ( map == null )           *
96          setFeatureSource(null,null);           * @param fs
97        else           *            the feature source
98          setFeatureSource(map.getGeoObject(), map.getAttributeMetaDataMap());           * @param amd
99      } catch (Exception err) {           *            {@link AttributeMetaData}-Map to define the visible attributes
100        throw new RuntimeException(err);           *            and translation
101      }           */
102    }          protected void setFeatureSource(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
103                              Map<Integer, AttributeMetaData> amd, Filter filter)
104    @Override                          throws Exception {
105    public void reorganize() {                  
106      super.reorganize();                  if (filter == null)
107      // translate the column names                          filter = Filter.INCLUDE;
108      if ( visibleAMD != null ) {  
109        Iterator<Integer> keys = visibleAMD.keySet().iterator();  //              this.featureSource = fs;
110        for (int i=0; i<colNames.length && keys.hasNext(); i++) {                  this.filter = filter;
111          Translation title = visibleAMD.get( keys.next() ).getTitle();                  this.origAMD = amd;
112          if ( !I8NUtil.isEmpty(title) )                  this.visibleAMD = null;
113            colNames[i] = title.toString();  
114        }                  FeatureCollection<SimpleFeatureType, SimpleFeature> fc = null;
115      }                  if (fs != null) {
116    }  
117  }                          bounds = fs.getBounds();
118    
119                            Query query = new DefaultQuery(fs.getSchema().getName().getLocalPart(), filter);
120                            if (amd != null) {
121                                    // determine the names of the visible Attributes
122                                    this.visibleAMD = StyledLayerUtil.getVisibleAttributeMetaData(
123                                                    amd, true);
124                                    Vector<String> visibleAttrNames = new Vector<String>();
125                                    // Add the column with the geometry (usually "the_geom")
126                                    visibleAttrNames.add(fs.getSchema().getGeometryDescriptor()
127                                                    .getLocalName());
128                                    for (int attrIdx : visibleAMD.keySet()) {
129    
130                                            /**
131                                             * If the user removed columns from the schema of the DBF
132                                             * file, there might exist AttributeMetaData for columns
133                                             * that don't exists. We check here to avoid an
134                                             * ArrayOutOfIndex.
135                                             */
136                                            if (attrIdx < fs.getSchema().getAttributeCount()) {
137                                                    final AttributeDescriptor attributeTypeAtIdx = fs.getSchema()
138                                                                    .getAttributeDescriptors().get(attrIdx);
139                                                    visibleAttrNames.add(attributeTypeAtIdx.getLocalName());
140                                            } else {
141                                                    LOGGER.warn("AttributeMetaData has been found for columnIdx="+attrIdx+", but fs.getSchema().getAttributeCount() = "+fs.getSchema().getAttributeCount()+". Ignored.");
142                                            }
143                                    }
144    
145                                    // create a query for the visible attributes
146                                    String[] properties = visibleAttrNames.toArray(new String[0]);
147    
148                                    LOGGER.debug("Query contains the following attributes: "
149                                                    + visibleAttrNames);
150    
151                                    query = new DefaultQuery(fs.getSchema().getTypeName(), filter,
152                                                    properties);
153                            }
154                            fc = fs.getFeatures(query);
155                    }
156                    setFeatureCollection(fc);
157            }
158    
159            /**
160             * Converts the {@code StyledFeatureCollection} to a {@code FeatureSource}
161             * and sets this as the new data source for the table.
162             *
163             * @param fs
164             *            the feature source
165             * @param amd
166             *            {@link AttributeMetaData}-Map to define the visible attributes
167             *            and translation
168             */
169            public void setStyledFeatures(StyledFeaturesInterface<?> styledFeatures) {
170                    try {
171                            if (styledFeatures == null)
172                                    setFeatureSource(null, null, null);
173                            else {
174                                    setFeatureSource(styledFeatures.getFeatureSource(), styledFeatures.getAttributeMetaDataMap(), styledFeatures.getFilter());
175                            }
176                    } catch (Exception err) {
177                            throw new RuntimeException(err);
178                    }
179            }
180    
181            /**
182             * After calling {@code super.reorganize(.)} this method replaced the column
183             * descriptions with the titles of the {@code AttributeMetaData}.
184             *
185             * @param fireTableStructureChanged
186             *            indicates whether a table event is initiated after reorganize
187             */
188            @Override
189            protected void reorganize(boolean fireTableStructureChanged) {
190                    super.reorganize(false);
191                    // translate the column names
192                    if (visibleAMD != null) {
193                            Iterator<Integer> keys = visibleAMD.keySet().iterator();
194                            for (int i = 0; i < colNames.length && keys.hasNext(); i++) {
195                                    Translation title = visibleAMD.get(keys.next()).getTitle();
196                                    if (!I8NUtil.isEmpty(title)) {
197                                            // System.out.println("set colname " + i + " to " +
198                                            // title.toString());
199                                            colNames[i] = title.toString();
200                                    }
201                            }
202                    }
203                    if (fireTableStructureChanged)
204                            fireTableStructureChanged();
205            }
206    
207            /**
208             * @return Cached bounds for the whole dataset (without applying the filter)
209             *         or <code>null</code>
210             */
211            public Envelope getBounds() {
212                    return bounds;
213            }
214    }

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