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	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	}