root / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / GeoRasterWriter.java @ 11981
History | View | Annotate | Download (13.3 KB)
1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
---|---|
2 |
*
|
3 |
* Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
|
4 |
*
|
5 |
* This program is free software; you can redistribute it and/or
|
6 |
* modify it under the terms of the GNU General Public License
|
7 |
* as published by the Free Software Foundation; either version 2
|
8 |
* of the License, or (at your option) any later version.
|
9 |
*
|
10 |
* This program is distributed in the hope that it will be useful,
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
13 |
* GNU General Public License for more details.
|
14 |
*
|
15 |
* You should have received a copy of the GNU General Public License
|
16 |
* along with this program; if not, write to the Free Software
|
17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
18 |
*/
|
19 |
package org.gvsig.raster.dataset; |
20 |
|
21 |
import java.io.IOException; |
22 |
import java.lang.reflect.Constructor; |
23 |
import java.lang.reflect.InvocationTargetException; |
24 |
import java.util.ArrayList; |
25 |
import java.util.Iterator; |
26 |
import java.util.Map; |
27 |
import java.util.Set; |
28 |
import java.util.TreeMap; |
29 |
|
30 |
import org.gvsig.raster.RasterLibrary; |
31 |
import org.gvsig.raster.dataset.io.features.WriteFileFormatFeatures; |
32 |
import org.gvsig.raster.shared.Extent; |
33 |
import org.gvsig.raster.util.RasterUtilities; |
34 |
import org.gvsig.raster.util.extensionPoints.ExtensionPoint; |
35 |
import org.gvsig.raster.util.extensionPoints.ExtensionPoints; |
36 |
import org.gvsig.raster.util.extensionPoints.ExtensionPointsSingleton; |
37 |
|
38 |
|
39 |
/**
|
40 |
* Clase abstracta de la que heredan los drivers de escritura. Tiene los
|
41 |
* m?todos abstractos que debe implementar cualquier driver de escritura
|
42 |
* y las funcionalidades y opciones soportadas comunes a todos ellos.
|
43 |
*
|
44 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
45 |
*/
|
46 |
public abstract class GeoRasterWriter { |
47 |
|
48 |
public static final int MODE_FILEWRITE = 1; |
49 |
public static final int MODE_DATAWRITE = 2; |
50 |
|
51 |
public static TreeMap fileFeature = new TreeMap(); |
52 |
protected String outFileName = null; |
53 |
protected String inFileName = null; |
54 |
protected int sizeWindowX = 0; |
55 |
protected int sizeWindowY = 0; |
56 |
protected int ulX = 0; |
57 |
protected int ulY = 0; |
58 |
protected IDataWriter dataWriter = null; |
59 |
protected int nBands = 0; |
60 |
protected String ident = null; |
61 |
protected String driver = null; |
62 |
protected Params driverParams = null; |
63 |
protected Extent extent = null; |
64 |
protected int percent = 0; |
65 |
protected int dataType = IBuffer.TYPE_BYTE; |
66 |
|
67 |
/**
|
68 |
* Carga los par?metros comunes a todos los drivers en el objeto WriterParams.
|
69 |
*/
|
70 |
/*public void loadParams() {
|
71 |
driverParams.clear();
|
72 |
|
73 |
driverParams.setParam( "blocksize",
|
74 |
String.valueOf(RasterLibrary.blockHeight),
|
75 |
Params.CHOICE,
|
76 |
new String[]{ "1", "8", "16", "32", "64", "128", "256", "512", "1024"});
|
77 |
|
78 |
driverParams.setParam( "georef",
|
79 |
"true",
|
80 |
Params.CHECK,
|
81 |
null);
|
82 |
}*/
|
83 |
|
84 |
/**
|
85 |
* Obtiene la lista de extensiones registradas
|
86 |
* @return Lista de extensiones registradas o null si no hay ninguna
|
87 |
*/
|
88 |
public static String[] getDriversExtensions(){ |
89 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
90 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
91 |
if(extensionPoint == null) |
92 |
return null; |
93 |
|
94 |
String[] list = new String[extensionPoint.size()]; |
95 |
Set values = extensionPoint.entrySet();
|
96 |
int i = 0; |
97 |
for (Iterator it = values.iterator(); it.hasNext(); ) { |
98 |
list[i] = (String)((Map.Entry)it.next()).getKey(); |
99 |
i++; |
100 |
} |
101 |
|
102 |
return list;
|
103 |
} |
104 |
|
105 |
/**
|
106 |
* Obtiene la lista de extensiones de ficheros sobre los que se puede salvar en un determinado
|
107 |
* tipo de datos. Como par?metro de la funci?n se especifica el tipo de datos sobre el que se
|
108 |
* desea consultar.
|
109 |
* Este m?todo consulta para cada driver registrado que extensiones soportan un tipoi
|
110 |
* @return Lista de extensiones registradas que soportan el tipo de datos pasado por par?metro.
|
111 |
*/
|
112 |
public static ArrayList getExtensionsSupported(int dataType, int bands) throws RasterDriverException { |
113 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
114 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
115 |
if(extensionPoint == null) |
116 |
return null; |
117 |
Set values = extensionPoint.entrySet();
|
118 |
ArrayList result = new ArrayList(); |
119 |
for (Iterator it = values.iterator(); it.hasNext(); ) { |
120 |
Map.Entry entry = ((Map.Entry)it.next()); |
121 |
String ext = (String)entry.getKey(); |
122 |
Class writerClass = (Class)entry.getValue(); |
123 |
Class [] args = {String.class}; |
124 |
try {
|
125 |
Constructor hazNuevo = writerClass.getConstructor(args);
|
126 |
Object [] args2 = {ext}; |
127 |
GeoRasterWriter grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
128 |
if(grw.isSupportedThisExtension(ext, dataType, bands))
|
129 |
result.add(ext); |
130 |
} catch (SecurityException e) { |
131 |
throw new RasterDriverException("Error SecurityException in open"); |
132 |
} catch (NoSuchMethodException e) { |
133 |
throw new RasterDriverException("Error NoSuchMethodException in open"); |
134 |
} catch (IllegalArgumentException e) { |
135 |
throw new RasterDriverException("Error IllegalArgumentException in open"); |
136 |
} catch (InstantiationException e) { |
137 |
throw new RasterDriverException("Error InstantiationException in open"); |
138 |
} catch (IllegalAccessException e) { |
139 |
throw new RasterDriverException("Error IllegalAccessException in open"); |
140 |
} catch (InvocationTargetException e) { |
141 |
throw new RasterDriverException("Error in open"); |
142 |
} |
143 |
} |
144 |
return result;
|
145 |
} |
146 |
|
147 |
/**
|
148 |
* Obtiene la lista de tipos de driver
|
149 |
* @return Lista de tipos de driver registradas o null si no hay ninguno
|
150 |
*/
|
151 |
public static String[] getDriversType(){ |
152 |
if (fileFeature.size() == 0) |
153 |
return null; |
154 |
String[] list = new String[fileFeature.size()]; |
155 |
Set values = fileFeature.entrySet();
|
156 |
int i = 0; |
157 |
for (Iterator it=values.iterator(); it.hasNext(); ) { |
158 |
list[i] = ((WriteFileFormatFeatures)((Map.Entry)it.next()).getValue()).getDriverName();
|
159 |
i++; |
160 |
} |
161 |
|
162 |
return list;
|
163 |
} |
164 |
|
165 |
/**
|
166 |
* Obtiene el tipo de driver a partir de la extensi?n
|
167 |
* @param ext Extensi?n
|
168 |
* @return Tipo
|
169 |
*/
|
170 |
public static String getDriverType(String ext){ |
171 |
return ((WriteFileFormatFeatures)fileFeature.get(ext)).getDriverName();
|
172 |
} |
173 |
|
174 |
/**
|
175 |
* Devuelve el n?mero de drivers soportados
|
176 |
* @return N?mero de drivers soportados
|
177 |
*/
|
178 |
public static int getNDrivers() { |
179 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
180 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
181 |
return extensionPoint.size();
|
182 |
} |
183 |
|
184 |
/**
|
185 |
* Devuelve el n?mero de tipos de driver registrados
|
186 |
* @return N?mero de tipos de driver soportados
|
187 |
*/
|
188 |
public static int getNTypes() { |
189 |
return fileFeature.size();
|
190 |
} |
191 |
|
192 |
/**
|
193 |
* Devuelve el identificador del driver
|
194 |
* @return Identificador del driver
|
195 |
*/
|
196 |
public String getIdent() { |
197 |
return ident;
|
198 |
} |
199 |
|
200 |
/**
|
201 |
* Obtiene el nombre del driver.
|
202 |
* @return Nombre del driver
|
203 |
*/
|
204 |
public String getDriverName() { |
205 |
return driver;
|
206 |
} |
207 |
|
208 |
/**
|
209 |
*
|
210 |
* @return
|
211 |
*/
|
212 |
public String getDriverType() { |
213 |
return driver;
|
214 |
} |
215 |
|
216 |
/**
|
217 |
* Asigna el porcentaje de incremento. Esto es usado por el driver para actualizar
|
218 |
* la variable percent
|
219 |
* @param percent
|
220 |
*/
|
221 |
public void setPercent(int percent) { |
222 |
this.percent = percent;
|
223 |
} |
224 |
|
225 |
/**
|
226 |
* Porcentaje de escritura completado.
|
227 |
* @return Entero con el porcentaje de escritura.
|
228 |
*/
|
229 |
public int getPercent() { |
230 |
return percent;
|
231 |
} |
232 |
|
233 |
/**
|
234 |
* Factoria para obtener escritores de los distintos tipos de raster.
|
235 |
*
|
236 |
* @param fName Nombre del fichero.
|
237 |
* @return GeoRasterWriter, o null si hay problemas.
|
238 |
*/
|
239 |
public static GeoRasterWriter getWriter(String fName) throws NotSupportedExtensionException, RasterDriverException { |
240 |
String ext = RasterUtilities.getExtensionFromFileName(fName);
|
241 |
GeoRasterWriter grw = null;
|
242 |
|
243 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
244 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
245 |
|
246 |
if(extensionPoint.get(ext) == null) |
247 |
return grw;
|
248 |
|
249 |
Class clase = (Class) extensionPoint.get(ext); |
250 |
Class [] args = {String.class}; |
251 |
try {
|
252 |
Constructor hazNuevo = clase.getConstructor(args);
|
253 |
Object [] args2 = {fName}; |
254 |
grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
255 |
} catch (SecurityException e) { |
256 |
throw new RasterDriverException("Error SecurityException in open"); |
257 |
} catch (NoSuchMethodException e) { |
258 |
throw new RasterDriverException("Error NoSuchMethodException in open"); |
259 |
} catch (IllegalArgumentException e) { |
260 |
throw new RasterDriverException("Error IllegalArgumentException in open"); |
261 |
} catch (InstantiationException e) { |
262 |
throw new RasterDriverException("Error InstantiationException in open"); |
263 |
} catch (IllegalAccessException e) { |
264 |
throw new RasterDriverException("Error IllegalAccessException in open"); |
265 |
} catch (InvocationTargetException e) { |
266 |
throw new NotSupportedExtensionException("Error in open"); |
267 |
} |
268 |
return grw;
|
269 |
} |
270 |
|
271 |
/**
|
272 |
* Factoria para obtener escritores de los distintos tipos de raster.
|
273 |
*
|
274 |
* @param fName Nombre del fichero.
|
275 |
* @return GeoRasterWriter, o null si hay problemas.
|
276 |
*/
|
277 |
public static GeoRasterWriter getWriter(IDataWriter dataWriter, |
278 |
String outFileName,
|
279 |
int nBands,
|
280 |
Extent ex, |
281 |
int outSizeX,
|
282 |
int outSizeY,
|
283 |
int dataType,
|
284 |
Params params) throws NotSupportedExtensionException, RasterDriverException {
|
285 |
String ext = outFileName.toLowerCase().substring(outFileName.lastIndexOf('.')+1); |
286 |
GeoRasterWriter grw = null;
|
287 |
|
288 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
289 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
290 |
|
291 |
if(extensionPoint.get(ext) == null) |
292 |
return grw;
|
293 |
|
294 |
Class clase = (Class) extensionPoint.get(ext); |
295 |
Class [] args = {IDataWriter.class, String.class, Integer.class, Extent.class, |
296 |
Integer.class, Integer.class, Integer.class, Params.class}; |
297 |
try {
|
298 |
Constructor hazNuevo = clase.getConstructor(args);
|
299 |
Object [] args2 = {dataWriter, outFileName, new Integer(nBands), ex, |
300 |
new Integer(outSizeX), new Integer(outSizeY), new Integer(dataType), params}; |
301 |
grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
302 |
} catch (SecurityException e) { |
303 |
throw new RasterDriverException("Error SecurityException in open"); |
304 |
} catch (NoSuchMethodException e) { |
305 |
throw new RasterDriverException("Error NoSuchMethodException in open"); |
306 |
} catch (IllegalArgumentException e) { |
307 |
throw new RasterDriverException("Error IllegalArgumentException in open"); |
308 |
} catch (InstantiationException e) { |
309 |
throw new RasterDriverException("Error InstantiationException in open"); |
310 |
} catch (IllegalAccessException e) { |
311 |
throw new RasterDriverException("Error IllegalAccessException in open"); |
312 |
} catch (InvocationTargetException e) { |
313 |
throw new NotSupportedExtensionException("Error in open"); |
314 |
} |
315 |
return grw;
|
316 |
} |
317 |
|
318 |
/**
|
319 |
* Obtiene los par?metros del driver.
|
320 |
* @return WriterParams
|
321 |
*/
|
322 |
public Params getParams() {
|
323 |
return driverParams;
|
324 |
} |
325 |
|
326 |
/**
|
327 |
* Asigna los par?metros del driver modificados por el cliente.
|
328 |
* @param Params
|
329 |
*/
|
330 |
public void setParams(Params params) { |
331 |
this.driverParams = params;
|
332 |
} |
333 |
|
334 |
/**
|
335 |
* Asigna propiedades al driver a partir de un vector de
|
336 |
* strings donde cada elemento tiene la estructura de
|
337 |
* propiedad=valor.
|
338 |
* @param props Propiedades
|
339 |
*/
|
340 |
//public abstract void setProps(String[] props);
|
341 |
|
342 |
/**
|
343 |
* Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
|
344 |
* @throws IOException
|
345 |
*/
|
346 |
public abstract void fileWrite() throws IOException; |
347 |
|
348 |
/**
|
349 |
* Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
|
350 |
* @throws IOException
|
351 |
*/
|
352 |
public abstract void dataWrite() throws IOException; |
353 |
|
354 |
/**
|
355 |
* Cierra el driver
|
356 |
*/
|
357 |
public abstract void writeClose(); |
358 |
|
359 |
/**
|
360 |
* Cancela el grabado de datos
|
361 |
*/
|
362 |
public abstract void writeCancel(); |
363 |
|
364 |
/**
|
365 |
* M?todo que pregunta si la extensi?n pasada por par?metro est? soportada
|
366 |
* con el tipo y n?mero de bandas indicadas.
|
367 |
* @param dataType Tipo de dato
|
368 |
* @param bands N?mero de bandas
|
369 |
* @param extensi?n
|
370 |
* @return true si est? soportada y false si no lo est?
|
371 |
*/
|
372 |
public boolean isSupportedThisExtension(String ext, int dataType, int bands) { |
373 |
WriteFileFormatFeatures features = (WriteFileFormatFeatures)fileFeature.get(ext); |
374 |
if(features == null) |
375 |
return false; |
376 |
int bandsSupported = features.getNBandsSupported();
|
377 |
if(bandsSupported != -1 && bandsSupported < bands) |
378 |
return false; |
379 |
int[] dt = features.getDataTypesSupported(); |
380 |
for (int i = 0; i < dt.length; i++) |
381 |
if(dataType == dt[i])
|
382 |
return true; |
383 |
return false; |
384 |
} |
385 |
} |