skrueger/geotools/AbstractStyledLayer.java

package skrueger.geotools;

import javax.swing.ImageIcon;

import org.apache.log4j.Logger;
import org.geotools.styling.Style;
import org.opengis.referencing.crs.CoordinateReferenceSystem;

import schmitzm.lang.LangUtil;
import skrueger.i8n.Translation;

import com.vividsolutions.jts.geom.Envelope;

/**
 * This class is a default implementation of {@link StyledLayerInterface}.
 * {@link StyledLayerInterface#dispose()} and {@link StyledLayerInterface#uncache()}
 * must be implemented by the sub class. This class only implements the "hold"
 * of an geo object of type {@code <E>}.
 * @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)
 * @version 1.0
 */
public abstract class AbstractStyledLayer<E> implements StyledLayerInterface<E> {
  /** Logger for warning- and error messages. */
  protected Logger LOGGER = LangUtil.createLogger(this);

  /** Holds the unique ID of the geo object. */
  protected String id = null;
  /** Holds a short (language-specific) description of the geo object. */
  protected Translation title = null;
  /** Holds a long (language-specific) description of the geo object. */
  protected Translation desc = null;
  /** Holds the (language-specific) keywords to describe the geo object. */
  protected Translation keywords = null;
  /** Holds an icon to represent the geo object */
  protected ImageIcon icon = null;
  /** Holds the geo object represeneted by the map */
  protected E geoObject = null;
  /** Holds the CRS of the geo object */
  protected CoordinateReferenceSystem crs = null;
  /** Holds the bounds of the geo object */
  protected Envelope envelope = null;
  /** Holds the display style for the geo object */
  protected Style style = null;

  /**
   * Creates a language specific styled layer.
   * @param geoObject the geo object
   * @param envelope the bounds of the geo object
   * @param crs the CRS of the geo object
   * @param id a unique ID for the geo 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
   * @param icon an icon for the object
   * @exception IllegalArgumentException if {@code null} is given as ID or
   *            geo object
   */
  public AbstractStyledLayer(E geoObject, Envelope envelope, CoordinateReferenceSystem crs, String id, Translation title, Translation desc, Translation keywords, Style style, ImageIcon icon) {
    if ( id == null )
      throw new IllegalArgumentException("ID is not allowed to be null!");
    if ( geoObject == null )
      throw new IllegalArgumentException("The GeoObject is not allowed to be null!");
    this.id        = id;
    this.geoObject = geoObject;
    this.crs       = crs;
    this.envelope  = envelope;
    setTitle( title );
    setDesc( desc );
    setKeywords( keywords );
    setStyle( style );
    setImageIcon( icon );
  }

  /**
   * Creates a non-translated styled layer.
   * @param geoObject the geo object
   * @param envelope the bounds of the geo object
   * @param crs the CRS of the geo object
   * @param id a unique ID for the geo object
   * @param title a short description
   * @param desc a long description
   * @param keywords keywords for the geo objects
   * @param style a display style
   * @param icon an icon for the object
   * @exception IllegalArgumentException if {@code null} is given as ID
   */
  public AbstractStyledLayer(E geoObject, Envelope envelope, CoordinateReferenceSystem crs, String id, String title, String desc, String keywords, Style style, ImageIcon icon ) {
    this(geoObject, envelope, crs, id, (Translation)null, null, null, style, icon);
    setTitle( title );
    setDesc( desc );
    setKeywords( keywords );
  }

  /**
   * Returns a ID for the geo object. The ID should be unique in a map ob
   * {@linkplain StyledLayerInterface styled layer objects}
   */
  public String getId() {
    return id;
  }

  /**
   * Returns a short (language-specific) description of the geo object.
   */
  public Translation getTitle() {
    return title;
  }

  /**
   * Sets a short (language-specific) description of the geo object.
   * If {@code title} is {@code null} an untranslated default title is set, so
   * {@link #getTitle()} never returns {@code null}.
   * @param title new description for the geo object
   */
  public void setTitle(Translation title) {
    this.title = (title != null) ? title : new Translation("untitled");
  }

  /**
   * Sets a short (non-translated) description of the geo object.
   * If {@code title} is {@code null} an untranslated default title is set, so
   * {@link #getTitle()} never returns {@code null}.
   * @param title new description for the geo object
   */
  public void setTitle(String title) {
    setTitle( title != null ? new Translation(title): (Translation)null );
  }

  /**
   * Returns a long (language-specific) description of the object.
   */
  public Translation getDesc() {
    return desc;
  }

  /**
   * Sets a long (language-specific) description of the object.
   * If {@code desc} is {@code null} an (untranslated) empty description is set, so
   * {@link #getDesc()} never returns {@code null}.
   * @param desc new description for the geo object
  */
  public void setDesc(Translation desc) {
    this.desc = (desc != null) ? desc : new Translation("");
  }

  /**
   * Sets a long (non-translated) description of the object.
   * If {@code desc} is {@code null} an (untranslated) empty description is set, so
   * {@link #getDesc()} never returns {@code null}.
   * @param desc new description for the geo object
  */
  public void setDesc(String desc) {
    setDesc( desc != null ? new Translation(desc) : (Translation)null);
  }

  /**
   * Returns a (language-specific) key word sequence for the geo object.
   */
  public Translation getKeywords() {
    return keywords;
  }

  /**
   * Sets a (language-specific) key word sequence for the geo object.
   * If {@code keywords} is {@code null} an (untranslated) empty string is set, so
   * {@link #getKeywords()} never returns {@code null}.
   * @param keywords Keywords
   */
  public void setKeywords(Translation keywords) {
    this.keywords = (keywords != null) ? keywords : new Translation("");
  }

  /**
   * Sets a (non-translated) key word sequence for the geo object.
   * If {@code keywords} is {@code null} an (untranslated) empty string is set, so
   * {@link #getKeywords()} never returns {@code null}.
   * @param keywords Keywords
   */
  public void setKeywords(String keywords) {
    setKeywords( keywords != null ? new Translation(keywords) : (Translation)null);
  }

  /**
   * Returns the geo object representet in the map. Sub classes must override
   * this method to implement "late loading" on first call.
   * @return {@link #geoObject}
   */
  public E getGeoObject() {
    return geoObject;
  }

  /**
   * Returns the bounds of the geo object.
   */
  public Envelope getEnvelope() {
    return envelope;
  }

  /**
   * Returns the {@link CoordinateReferenceSystem} of the geo object.
   */
  public CoordinateReferenceSystem getCrs() {
    return crs;
  }

  /**
   * Returns {@link #crs CoordinateReferenceSystem.toString()}. This method
   * can be overriden to create a "nicer" description.
   */
  public String getCRSString() {
    return crs.toString();
  }

  /**
   * Returns an icon, which represents the geo object.
   */
  public ImageIcon getImageIcon() {
    return null;
  }

  /**
   * Sets an icon, which represents the geo object.
   * @param icon an icon
   */
  public void setImageIcon(ImageIcon icon) {
    this.icon = icon;
  }

  /**
   * Returns the display style for the geo object.
   */
  public Style getStyle() {
    return style;
  }

  /**
   * Sets the display style for the geo object.
   * If {@code style} is {@code null} an default style is set, so
   * {@link #getStyle()} never returns {@code null}.
   * @see #createDefaultStyle()
   */
  public void setStyle(Style style) {
    this.style = (style != null) ? style : createDefaultStyle();
  }

  /**
   * Creates a default style for the geo object. This style is used whenever
   * the style is set to {@code null}.
   * @see #setStyle(Style)
   */
  protected abstract Style createDefaultStyle();
}
1	package skrueger.geotools;
2
3	import javax.swing.ImageIcon;
4
5	import org.apache.log4j.Logger;
6	import org.geotools.styling.Style;
7	import org.opengis.referencing.crs.CoordinateReferenceSystem;
8
9	import schmitzm.lang.LangUtil;
10	import skrueger.i8n.Translation;
11
12	import com.vividsolutions.jts.geom.Envelope;
13
14	/**
15	* This class is a default implementation of {@link StyledLayerInterface}.
16	* {@link StyledLayerInterface#dispose()} and {@link StyledLayerInterface#uncache()}
17	* must be implemented by the sub class. This class only implements the "hold"
18	* of an geo object of type {@code <E>}.
19	* @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)
20	* @version 1.0
21	*/
22	public abstract class AbstractStyledLayer<E> implements StyledLayerInterface<E> {
23	/** Logger for warning- and error messages. */
24	protected Logger LOGGER = LangUtil.createLogger(this);
25
26	/** Holds the unique ID of the geo object. */
27	protected String id = null;
28	/** Holds a short (language-specific) description of the geo object. */
29	protected Translation title = null;
30	/** Holds a long (language-specific) description of the geo object. */
31	protected Translation desc = null;
32	/** Holds the (language-specific) keywords to describe the geo object. */
33	protected Translation keywords = null;
34	/** Holds an icon to represent the geo object */
35	protected ImageIcon icon = null;
36	/** Holds the geo object represeneted by the map */
37	protected E geoObject = null;
38	/** Holds the CRS of the geo object */
39	protected CoordinateReferenceSystem crs = null;
40	/** Holds the bounds of the geo object */
41	protected Envelope envelope = null;
42	/** Holds the display style for the geo object */
43	protected Style style = null;
44
45	/**
46	* Creates a language specific styled layer.
47	* @param geoObject the geo object
48	* @param envelope the bounds of the geo object
49	* @param crs the CRS of the geo object
50	* @param id a unique ID for the geo object
51	* @param title a (language-specific) short description
52	* @param desc a (language-specific) long description
53	* @param keywords (language-specific) keywords for the geo objects
54	* @param style a display style
55	* @param icon an icon for the object
56	* @exception IllegalArgumentException if {@code null} is given as ID or
57	* geo object
58	*/
59	public AbstractStyledLayer(E geoObject, Envelope envelope, CoordinateReferenceSystem crs, String id, Translation title, Translation desc, Translation keywords, Style style, ImageIcon icon) {
60	if ( id == null )
61	throw new IllegalArgumentException("ID is not allowed to be null!");
62	if ( geoObject == null )
63	throw new IllegalArgumentException("The GeoObject is not allowed to be null!");
64	this.id = id;
65	this.geoObject = geoObject;
66	this.crs = crs;
67	this.envelope = envelope;
68	setTitle( title );
69	setDesc( desc );
70	setKeywords( keywords );
71	setStyle( style );
72	setImageIcon( icon );
73	}
74
75	/**
76	* Creates a non-translated styled layer.
77	* @param geoObject the geo object
78	* @param envelope the bounds of the geo object
79	* @param crs the CRS of the geo object
80	* @param id a unique ID for the geo object
81	* @param title a short description
82	* @param desc a long description
83	* @param keywords keywords for the geo objects
84	* @param style a display style
85	* @param icon an icon for the object
86	* @exception IllegalArgumentException if {@code null} is given as ID
87	*/
88	public AbstractStyledLayer(E geoObject, Envelope envelope, CoordinateReferenceSystem crs, String id, String title, String desc, String keywords, Style style, ImageIcon icon ) {
89	this(geoObject, envelope, crs, id, (Translation)null, null, null, style, icon);
90	setTitle( title );
91	setDesc( desc );
92	setKeywords( keywords );
93	}
94
95	/**
96	* Returns a ID for the geo object. The ID should be unique in a map ob
97	* {@linkplain StyledLayerInterface styled layer objects}
98	*/
99	public String getId() {
100	return id;
101	}
102
103	/**
104	* Returns a short (language-specific) description of the geo object.
105	*/
106	public Translation getTitle() {
107	return title;
108	}
109
110	/**
111	* Sets a short (language-specific) description of the geo object.
112	* If {@code title} is {@code null} an untranslated default title is set, so
113	* {@link #getTitle()} never returns {@code null}.
114	* @param title new description for the geo object
115	*/
116	public void setTitle(Translation title) {
117	this.title = (title != null) ? title : new Translation("untitled");
118	}
119
120	/**
121	* Sets a short (non-translated) description of the geo object.
122	* If {@code title} is {@code null} an untranslated default title is set, so
123	* {@link #getTitle()} never returns {@code null}.
124	* @param title new description for the geo object
125	*/
126	public void setTitle(String title) {
127	setTitle( title != null ? new Translation(title): (Translation)null );
128	}
129
130	/**
131	* Returns a long (language-specific) description of the object.
132	*/
133	public Translation getDesc() {
134	return desc;
135	}
136
137	/**
138	* Sets a long (language-specific) description of the object.
139	* If {@code desc} is {@code null} an (untranslated) empty description is set, so
140	* {@link #getDesc()} never returns {@code null}.
141	* @param desc new description for the geo object
142	*/
143	public void setDesc(Translation desc) {
144	this.desc = (desc != null) ? desc : new Translation("");
145	}
146
147	/**
148	* Sets a long (non-translated) description of the object.
149	* If {@code desc} is {@code null} an (untranslated) empty description is set, so
150	* {@link #getDesc()} never returns {@code null}.
151	* @param desc new description for the geo object
152	*/
153	public void setDesc(String desc) {
154	setDesc( desc != null ? new Translation(desc) : (Translation)null);
155	}
156
157	/**
158	* Returns a (language-specific) key word sequence for the geo object.
159	*/
160	public Translation getKeywords() {
161	return keywords;
162	}
163
164	/**
165	* Sets a (language-specific) key word sequence for the geo object.
166	* If {@code keywords} is {@code null} an (untranslated) empty string is set, so
167	* {@link #getKeywords()} never returns {@code null}.
168	* @param keywords Keywords
169	*/
170	public void setKeywords(Translation keywords) {
171	this.keywords = (keywords != null) ? keywords : new Translation("");
172	}
173
174	/**
175	* Sets a (non-translated) key word sequence for the geo object.
176	* If {@code keywords} is {@code null} an (untranslated) empty string is set, so
177	* {@link #getKeywords()} never returns {@code null}.
178	* @param keywords Keywords
179	*/
180	public void setKeywords(String keywords) {
181	setKeywords( keywords != null ? new Translation(keywords) : (Translation)null);
182	}
183
184	/**
185	* Returns the geo object representet in the map. Sub classes must override
186	* this method to implement "late loading" on first call.
187	* @return {@link #geoObject}
188	*/
189	public E getGeoObject() {
190	return geoObject;
191	}
192
193	/**
194	* Returns the bounds of the geo object.
195	*/
196	public Envelope getEnvelope() {
197	return envelope;
198	}
199
200	/**
201	* Returns the {@link CoordinateReferenceSystem} of the geo object.
202	*/
203	public CoordinateReferenceSystem getCrs() {
204	return crs;
205	}
206
207	/**
208	* Returns {@link #crs CoordinateReferenceSystem.toString()}. This method
209	* can be overriden to create a "nicer" description.
210	*/
211	public String getCRSString() {
212	return crs.toString();
213	}
214
215	/**
216	* Returns an icon, which represents the geo object.
217	*/
218	public ImageIcon getImageIcon() {
219	return null;
220	}
221
222	/**
223	* Sets an icon, which represents the geo object.
224	* @param icon an icon
225	*/
226	public void setImageIcon(ImageIcon icon) {
227	this.icon = icon;
228	}
229
230	/**
231	* Returns the display style for the geo object.
232	*/
233	public Style getStyle() {
234	return style;
235	}
236
237	/**
238	* Sets the display style for the geo object.
239	* If {@code style} is {@code null} an default style is set, so
240	* {@link #getStyle()} never returns {@code null}.
241	* @see #createDefaultStyle()
242	*/
243	public void setStyle(Style style) {
244	this.style = (style != null) ? style : createDefaultStyle();
245	}
246
247	/**
248	* Creates a default style for the geo object. This style is used whenever
249	* the style is set to {@code null}.
250	* @see #setStyle(Style)
251	*/
252	protected abstract Style createDefaultStyle();
253	}