skrueger/geotools/StyledFeatureCollection.java

package skrueger.geotools;

import java.net.URL;
import java.util.Map;
import java.util.HashMap;
import javax.swing.ImageIcon;

import org.geotools.styling.Style;
import org.geotools.feature.FeatureCollection;
import org.geotools.feature.FeatureType;
import org.geotools.feature.AttributeType;

import schmitzm.geotools.feature.FeatureUtil;

import skrueger.i8n.Translation;
import skrueger.AttributeMetaData;


/**
 * This class provides a simple implementation of {@link StyledMapInterface}
 * for {@link FeatureCollection}. The uncache functionality is not supported,
 * because this class bases on an existing {@link FeatureCollection} object in
 * memory.
 * @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)
 * @version 1.0
 */
public class StyledFeatureCollection extends AbstractStyledMap<FeatureCollection> implements StyledFeatureCollectionInterface {

  /** Holds the meta data for displaying a legend. */
  protected Map<Integer,AttributeMetaData> attrMetaData = null;

  /**
   * Creates a styled {@link FeatureCollection} with language-specific informations.
   * @param fc the {@link FeatureCollection}
   * @param id a unique ID for the object
   * @param title a (language-specific) short description
   * @param desc a (language-specific) long description
   * @param keywords (language-specific) keywords for the geo objects
   * @param style a display style (if {@code null}, a default style is created)
   * @param attrMetaData meta data for displaying a legend
   * @param icon an icon for the object (can be {@code null})
   * @exception IllegalArgumentException if {@code null} is given as ID or geo object
   */
  public StyledFeatureCollection(FeatureCollection fc, String id, Translation title, Translation desc, Translation keywords, Style style, Map<Integer,AttributeMetaData> attrMetaData, ImageIcon icon) {
    super(fc, fc.getBounds(), fc.getSchema().getDefaultGeometry().getCoordinateSystem(), id, title, desc, keywords, style, icon);
    setAttributeMetaData( attrMetaData );
  }

  /**
   * Creates a styled {@link FeatureCollection} with language-specific informations.
   * @param fc the {@link FeatureCollection}
   * @param id a unique ID for the object
   * @param title a (language-specific) short description
   * @param desc a (language-specific) long description
   * @param keywords (language-specific) keywords for the geo objects
   * @param style a display style with attribute meta data information
   * @param icon an icon for the object (can be {@code null})
   * @exception IllegalArgumentException if {@code null} is given as ID or geo object
   */
  public StyledFeatureCollection(FeatureCollection fc, String id, Translation title, Translation desc, Translation keywords, StyledMapStyle<Map<Integer,AttributeMetaData>> style, ImageIcon icon) {
    super(fc, fc.getBounds(), fc.getSchema().getDefaultGeometry().getCoordinateSystem(), id, title, desc, keywords, style != null ? style.getGeoObjectStyle() : null, icon);
    setAttributeMetaData( style != null ? style.getMetaData() : null );
  }

  /**
   * Creates a styled {@link FeatureCollection} with a language-specific title,
   * no long description, no keywords, default attribute meta data and no icon.
   * @param fc the {@link FeatureCollection}
   * @param id a unique ID for the object
   * @param title a short description
   * @param style a display style (if {@code null}, a default style is created)
   * @exception IllegalArgumentException if {@code null} is given as ID or geo object
   * @see #createDefaultAttributeMetaDataMap(FeatureCollection)
   */
  public StyledFeatureCollection(FeatureCollection fc, String id, Translation title, Style style) {
    this(fc, id, title, null, null, style, null, null);
  }

  /**
   * Creates a styled {@link FeatureCollection} with non-translated informations.
   * @param fc the {@link FeatureCollection}
   * @param id a unique ID for the object
   * @param title a short description
   * @param desc a long description
   * @param keywords keywords for the geo objects
   * @param style a display style (if {@code null}, a default style is created)
   * @param attrMetaData meta data for displaying a legend
   * @param icon an icon for the object (can be {@code null})
   * @exception IllegalArgumentException if {@code null} is given as ID or geo object
   */
  public StyledFeatureCollection(FeatureCollection fc, String id, String title, String desc, String keywords, Style style, Map<Integer,AttributeMetaData> attrMetaData, ImageIcon icon) {
    this(fc, id, (Translation)null, null, null, style, attrMetaData, icon);
    setTitle(title);
    setDesc(desc);
    setKeywords(keywords);
  }

  /**
   * Creates a styled {@link FeatureCollection} with non-translated informations.
   * @param fc the {@link FeatureCollection}
   * @param id a unique ID for the object
   * @param title a short description
   * @param desc a long description
   * @param keywords keywords for the geo objects
   * @param style a display style with attribute meta data information
   * @param icon an icon for the object (can be {@code null})
   * @exception IllegalArgumentException if {@code null} is given as ID or geo object
   */
  public StyledFeatureCollection(FeatureCollection fc, String id, String title, String desc, String keywords, StyledMapStyle<Map<Integer,AttributeMetaData>> style, ImageIcon icon) {
    this(fc,
         id,
         title,
         desc,
         keywords,
         style != null ? style.getGeoObjectStyle() : null,
         style != null ? style.getMetaData() : null,
         icon
    );
  }

  /**
   * Creates a styled {@link FeatureCollection} with a non-translated title,
   * no long description, no keywords, default attribute meta data and no icon.
   * @param fc the {@link FeatureCollection}
   * @param id a unique ID for the object
   * @param title a short description
   * @param style a display style (if {@code null}, a default style is created)
   * @exception IllegalArgumentException if {@code null} is given as ID or geo object
   * @see #createDefaultAttributeMetaDataMap(FeatureCollection)
   */
  public StyledFeatureCollection(FeatureCollection fc, String id, String title, Style style) {
    this(fc, id, title, null, null, style, null, null);
  }

  /**
   * Creates a styled {@link FeatureCollection} with a non-translated title,
   * no long description, no keywords, default attribute meta data and no icon.
   * @param fc the {@link FeatureCollection}
   * @param id a unique ID for the object
   * @param title a short description
   * @param style a display style (if {@code null}, a default style is created)
   * @exception IllegalArgumentException if {@code null} is given as ID or geo object
   * @see #createDefaultAttributeMetaDataMap(FeatureCollection)
   */
  public StyledFeatureCollection(FeatureCollection fc, String id, String title, StyledMapStyle<Map<Integer,AttributeMetaData>> style) {
    this(
      fc,
      id,
      title,
      null,
      null,
      style != null ? style.getGeoObjectStyle() : null,
      style != null ? style.getMetaData() : null,
      null
    );
  }

  /**
   * Creates a default style for the {@link FeatureCollection}.
   * @see FeatureUtil#createDefaultStyle(FeatureCollection)
   */
  protected Style createDefaultStyle() {
    return FeatureUtil.createDefaultStyle( geoObject );
  }

  /**
   * Returns the meta data needed for displaying a legend.
   */
  public Map<Integer,AttributeMetaData> getAttributeMetaDataMap() {
    return attrMetaData;
  }

  /**
   * Sets the meta data needed for displaying a legend.
   * If {@code legendData} is {@code null} an empty map is set, so
   * {@link #getAttributeMetaDataMap()} never returns {@code null}.
   * @param attrMetaData map of attribute meta data
   */
  public void setAttributeMetaData(Map<Integer,AttributeMetaData> attrMetaData) {
    this.attrMetaData = (attrMetaData != null) ? attrMetaData : createDefaultAttributeMetaDataMap(geoObject);
  }

  /**
   * Creates non-translated default meta data for a {@link FeatureCollection}
   * with all attributes visible and no unit set.
   * @param fc a {@link FeatureCollection}
   */
  public static Map<Integer,AttributeMetaData> createDefaultAttributeMetaDataMap(FeatureCollection fc) {
    HashMap<Integer,AttributeMetaData> metaDataMap = new HashMap<Integer,AttributeMetaData>();
    FeatureType ftype = fc.getSchema();
    for (int i=0; i<ftype.getAttributeCount(); i++) {
      AttributeType aType = ftype.getAttributeType(i);
      if ( aType != ftype.getDefaultGeometry() )
        metaDataMap.put(
          i,
          new AttributeMetaData(
            i,  // Column no.
            true, // visible
            new Translation( aType.getName() ), // Column name
            new Translation(), // description
            "" // Unit
          )
        );
    }
    return metaDataMap;
  }

  /**
   * Simply sets the {@link #geoObject}, {@link #crs}, {@link #envelope} and
   * {@link #attrMetaData} to {@code null}.
   */
  public void dispose() {
    this.geoObject    = null;
    this.envelope     = null;
    this.crs          = null;
    this.attrMetaData = null;
  }

  /**
   * Tests whether the geo object is disposed.
   */
  public boolean isDisposed() {
    return geoObject == null;
  }

  /**
   * Does nothing, because the {@link AbstractStyledMap} bases on existing
   * objects (in memory) which can not be uncached and reloaded.
   */
  public void uncache() {
    LOGGER.warn("Uncache functionality is not supported. Object remains in memory.");
  }


  /*
   * (non-Javadoc)
   * @see skrueger.geotools.StyledMapInterface#getInfoURL()
   */
        public URL getInfoURL() {
                return null;
        }

        public boolean isHideInLegend() {
                return false;
        }
}
1	mojays	2	package skrueger.geotools;
2
3			import java.net.URL;
4			import java.util.Map;
5			import java.util.HashMap;
6			import javax.swing.ImageIcon;
7
8			import org.geotools.styling.Style;
9			import org.geotools.feature.FeatureCollection;
10			import org.geotools.feature.FeatureType;
11			import org.geotools.feature.AttributeType;
12
13			import schmitzm.geotools.feature.FeatureUtil;
14
15			import skrueger.i8n.Translation;
16			import skrueger.AttributeMetaData;
17
18
19			/**
20			* This class provides a simple implementation of {@link StyledMapInterface}
21			* for {@link FeatureCollection}. The uncache functionality is not supported,
22			* because this class bases on an existing {@link FeatureCollection} object in
23			* memory.
24			* @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)
25			* @version 1.0
26			*/
27			public class StyledFeatureCollection extends AbstractStyledMap<FeatureCollection> implements StyledFeatureCollectionInterface {
28
29			/** Holds the meta data for displaying a legend. */
30			protected Map<Integer,AttributeMetaData> attrMetaData = null;
31
32			/**
33			* Creates a styled {@link FeatureCollection} with language-specific informations.
34			* @param fc the {@link FeatureCollection}
35			* @param id a unique ID for the object
36			* @param title a (language-specific) short description
37			* @param desc a (language-specific) long description
38			* @param keywords (language-specific) keywords for the geo objects
39			* @param style a display style (if {@code null}, a default style is created)
40			* @param attrMetaData meta data for displaying a legend
41			* @param icon an icon for the object (can be {@code null})
42			* @exception IllegalArgumentException if {@code null} is given as ID or geo object
43			*/
44			public StyledFeatureCollection(FeatureCollection fc, String id, Translation title, Translation desc, Translation keywords, Style style, Map<Integer,AttributeMetaData> attrMetaData, ImageIcon icon) {
45			super(fc, fc.getBounds(), fc.getSchema().getDefaultGeometry().getCoordinateSystem(), id, title, desc, keywords, style, icon);
46			setAttributeMetaData( attrMetaData );
47			}
48
49			/**
50			* Creates a styled {@link FeatureCollection} with language-specific informations.
51			* @param fc the {@link FeatureCollection}
52			* @param id a unique ID for the object
53			* @param title a (language-specific) short description
54			* @param desc a (language-specific) long description
55			* @param keywords (language-specific) keywords for the geo objects
56			* @param style a display style with attribute meta data information
57			* @param icon an icon for the object (can be {@code null})
58			* @exception IllegalArgumentException if {@code null} is given as ID or geo object
59			*/
60			public StyledFeatureCollection(FeatureCollection fc, String id, Translation title, Translation desc, Translation keywords, StyledMapStyle<Map<Integer,AttributeMetaData>> style, ImageIcon icon) {
61			super(fc, fc.getBounds(), fc.getSchema().getDefaultGeometry().getCoordinateSystem(), id, title, desc, keywords, style != null ? style.getGeoObjectStyle() : null, icon);
62			setAttributeMetaData( style != null ? style.getMetaData() : null );
63			}
64
65			/**
66			* Creates a styled {@link FeatureCollection} with a language-specific title,
67			* no long description, no keywords, default attribute meta data and no icon.
68			* @param fc the {@link FeatureCollection}
69			* @param id a unique ID for the object
70			* @param title a short description
71			* @param style a display style (if {@code null}, a default style is created)
72			* @exception IllegalArgumentException if {@code null} is given as ID or geo object
73			* @see #createDefaultAttributeMetaDataMap(FeatureCollection)
74			*/
75			public StyledFeatureCollection(FeatureCollection fc, String id, Translation title, Style style) {
76			this(fc, id, title, null, null, style, null, null);
77			}
78
79			/**
80			* Creates a styled {@link FeatureCollection} with non-translated informations.
81			* @param fc the {@link FeatureCollection}
82			* @param id a unique ID for the object
83			* @param title a short description
84			* @param desc a long description
85			* @param keywords keywords for the geo objects
86			* @param style a display style (if {@code null}, a default style is created)
87			* @param attrMetaData meta data for displaying a legend
88			* @param icon an icon for the object (can be {@code null})
89			* @exception IllegalArgumentException if {@code null} is given as ID or geo object
90			*/
91			public StyledFeatureCollection(FeatureCollection fc, String id, String title, String desc, String keywords, Style style, Map<Integer,AttributeMetaData> attrMetaData, ImageIcon icon) {
92			this(fc, id, (Translation)null, null, null, style, attrMetaData, icon);
93			setTitle(title);
94			setDesc(desc);
95			setKeywords(keywords);
96			}
97
98			/**
99			* Creates a styled {@link FeatureCollection} with non-translated informations.
100			* @param fc the {@link FeatureCollection}
101			* @param id a unique ID for the object
102			* @param title a short description
103			* @param desc a long description
104			* @param keywords keywords for the geo objects
105			* @param style a display style with attribute meta data information
106			* @param icon an icon for the object (can be {@code null})
107			* @exception IllegalArgumentException if {@code null} is given as ID or geo object
108			*/
109			public StyledFeatureCollection(FeatureCollection fc, String id, String title, String desc, String keywords, StyledMapStyle<Map<Integer,AttributeMetaData>> style, ImageIcon icon) {
110			this(fc,
111			id,
112			title,
113			desc,
114			keywords,
115			style != null ? style.getGeoObjectStyle() : null,
116			style != null ? style.getMetaData() : null,
117			icon
118			);
119			}
120
121			/**
122			* Creates a styled {@link FeatureCollection} with a non-translated title,
123			* no long description, no keywords, default attribute meta data and no icon.
124			* @param fc the {@link FeatureCollection}
125			* @param id a unique ID for the object
126			* @param title a short description
127			* @param style a display style (if {@code null}, a default style is created)
128			* @exception IllegalArgumentException if {@code null} is given as ID or geo object
129			* @see #createDefaultAttributeMetaDataMap(FeatureCollection)
130			*/
131			public StyledFeatureCollection(FeatureCollection fc, String id, String title, Style style) {
132			this(fc, id, title, null, null, style, null, null);
133			}
134
135			/**
136			* Creates a styled {@link FeatureCollection} with a non-translated title,
137			* no long description, no keywords, default attribute meta data and no icon.
138			* @param fc the {@link FeatureCollection}
139			* @param id a unique ID for the object
140			* @param title a short description
141			* @param style a display style (if {@code null}, a default style is created)
142			* @exception IllegalArgumentException if {@code null} is given as ID or geo object
143			* @see #createDefaultAttributeMetaDataMap(FeatureCollection)
144			*/
145			public StyledFeatureCollection(FeatureCollection fc, String id, String title, StyledMapStyle<Map<Integer,AttributeMetaData>> style) {
146			this(
147			fc,
148			id,
149			title,
150			null,
151			null,
152			style != null ? style.getGeoObjectStyle() : null,
153			style != null ? style.getMetaData() : null,
154			null
155			);
156			}
157
158			/**
159			* Creates a default style for the {@link FeatureCollection}.
160			* @see FeatureUtil#createDefaultStyle(FeatureCollection)
161			*/
162			protected Style createDefaultStyle() {
163			return FeatureUtil.createDefaultStyle( geoObject );
164			}
165
166			/**
167			* Returns the meta data needed for displaying a legend.
168			*/
169			public Map<Integer,AttributeMetaData> getAttributeMetaDataMap() {
170			return attrMetaData;
171			}
172
173			/**
174			* Sets the meta data needed for displaying a legend.
175			* If {@code legendData} is {@code null} an empty map is set, so
176			* {@link #getAttributeMetaDataMap()} never returns {@code null}.
177			* @param attrMetaData map of attribute meta data
178			*/
179			public void setAttributeMetaData(Map<Integer,AttributeMetaData> attrMetaData) {
180			this.attrMetaData = (attrMetaData != null) ? attrMetaData : createDefaultAttributeMetaDataMap(geoObject);
181			}
182
183			/**
184			* Creates non-translated default meta data for a {@link FeatureCollection}
185			* with all attributes visible and no unit set.
186			* @param fc a {@link FeatureCollection}
187			*/
188			public static Map<Integer,AttributeMetaData> createDefaultAttributeMetaDataMap(FeatureCollection fc) {
189			HashMap<Integer,AttributeMetaData> metaDataMap = new HashMap<Integer,AttributeMetaData>();
190			FeatureType ftype = fc.getSchema();
191			for (int i=0; i<ftype.getAttributeCount(); i++) {
192			AttributeType aType = ftype.getAttributeType(i);
193			if ( aType != ftype.getDefaultGeometry() )
194			metaDataMap.put(
195			i,
196			new AttributeMetaData(
197			i, // Column no.
198			true, // visible
199			new Translation( aType.getName() ), // Column name
200			new Translation(), // description
201			"" // Unit
202			)
203			);
204			}
205			return metaDataMap;
206			}
207
208			/**
209			* Simply sets the {@link #geoObject}, {@link #crs}, {@link #envelope} and
210			* {@link #attrMetaData} to {@code null}.
211			*/
212			public void dispose() {
213			this.geoObject = null;
214			this.envelope = null;
215			this.crs = null;
216			this.attrMetaData = null;
217			}
218
219			/**
220			* Tests whether the geo object is disposed.
221			*/
222			public boolean isDisposed() {
223			return geoObject == null;
224			}
225
226			/**
227			* Does nothing, because the {@link AbstractStyledMap} bases on existing
228			* objects (in memory) which can not be uncached and reloaded.
229			*/
230			public void uncache() {
231			LOGGER.warn("Uncache functionality is not supported. Object remains in memory.");
232			}
233
234
235			/*
236			* (non-Javadoc)
237			* @see skrueger.geotools.StyledMapInterface#getInfoURL()
238			*/
239			public URL getInfoURL() {
240			return null;
241			}
242
243			public boolean isHideInLegend() {
244			return false;
245			}
246			}