svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / GeoRasterWriter.java @ 12066
History | View | Annotate | Download (12.7 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.dataset.io.features.WriteFileFormatFeatures; |
31 |
import org.gvsig.raster.shared.Extent; |
32 |
import org.gvsig.raster.util.RasterUtilities; |
33 |
import org.gvsig.raster.util.extensionPoints.ExtensionPoint; |
34 |
import org.gvsig.raster.util.extensionPoints.ExtensionPoints; |
35 |
import org.gvsig.raster.util.extensionPoints.ExtensionPointsSingleton; |
36 |
|
37 |
|
38 |
/**
|
39 |
* Clase abstracta de la que heredan los drivers de escritura. Tiene los
|
40 |
* m?todos abstractos que debe implementar cualquier driver de escritura
|
41 |
* y las funcionalidades y opciones soportadas comunes a todos ellos.
|
42 |
*
|
43 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
44 |
*/
|
45 |
public abstract class GeoRasterWriter { |
46 |
|
47 |
public static final int MODE_FILEWRITE = 1; |
48 |
public static final int MODE_DATAWRITE = 2; |
49 |
|
50 |
public static TreeMap fileFeature = new TreeMap(); |
51 |
protected String outFileName = null; |
52 |
protected String inFileName = null; |
53 |
protected int sizeWindowX = 0; |
54 |
protected int sizeWindowY = 0; |
55 |
protected int ulX = 0; |
56 |
protected int ulY = 0; |
57 |
protected IDataWriter dataWriter = null; |
58 |
protected int nBands = 0; |
59 |
protected String ident = null; |
60 |
protected String driver = null; |
61 |
protected Params driverParams = null; |
62 |
protected Extent extent = null; |
63 |
protected int percent = 0; |
64 |
protected int dataType = IBuffer.TYPE_BYTE; |
65 |
|
66 |
/**
|
67 |
* Obtiene la lista de extensiones registradas
|
68 |
* @return Lista de extensiones registradas o null si no hay ninguna
|
69 |
*/
|
70 |
public static String[] getDriversExtensions(){ |
71 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
72 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
73 |
if(extensionPoint == null) |
74 |
return null; |
75 |
|
76 |
String[] list = new String[extensionPoint.size()]; |
77 |
Set values = extensionPoint.entrySet();
|
78 |
int i = 0; |
79 |
for (Iterator it = values.iterator(); it.hasNext(); ) { |
80 |
list[i] = (String)((Map.Entry)it.next()).getKey(); |
81 |
i++; |
82 |
} |
83 |
|
84 |
return list;
|
85 |
} |
86 |
|
87 |
/**
|
88 |
* Obtiene la lista de extensiones de ficheros sobre los que se puede salvar en un determinado
|
89 |
* tipo de datos. Como par?metro de la funci?n se especifica el tipo de datos sobre el que se
|
90 |
* desea consultar.
|
91 |
* Este m?todo consulta para cada driver registrado que extensiones soportan un tipoi
|
92 |
* @return Lista de extensiones registradas que soportan el tipo de datos pasado por par?metro.
|
93 |
*/
|
94 |
public static ArrayList getExtensionsSupported(int dataType, int bands) throws RasterDriverException { |
95 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
96 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
97 |
if(extensionPoint == null) |
98 |
return null; |
99 |
Set values = extensionPoint.entrySet();
|
100 |
ArrayList result = new ArrayList(); |
101 |
for (Iterator it = values.iterator(); it.hasNext(); ) { |
102 |
Map.Entry entry = ((Map.Entry)it.next()); |
103 |
String ext = (String)entry.getKey(); |
104 |
Class writerClass = (Class)entry.getValue(); |
105 |
Class [] args = {String.class}; |
106 |
try {
|
107 |
Constructor hazNuevo = writerClass.getConstructor(args);
|
108 |
Object [] args2 = {ext}; |
109 |
GeoRasterWriter grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
110 |
if(grw.isSupportedThisExtension(ext, dataType, bands))
|
111 |
result.add(ext); |
112 |
} catch (SecurityException e) { |
113 |
throw new RasterDriverException("Error SecurityException in open"); |
114 |
} catch (NoSuchMethodException e) { |
115 |
throw new RasterDriverException("Error NoSuchMethodException in open"); |
116 |
} catch (IllegalArgumentException e) { |
117 |
throw new RasterDriverException("Error IllegalArgumentException in open"); |
118 |
} catch (InstantiationException e) { |
119 |
throw new RasterDriverException("Error InstantiationException in open"); |
120 |
} catch (IllegalAccessException e) { |
121 |
throw new RasterDriverException("Error IllegalAccessException in open"); |
122 |
} catch (InvocationTargetException e) { |
123 |
throw new RasterDriverException("Error in open"); |
124 |
} |
125 |
} |
126 |
return result;
|
127 |
} |
128 |
|
129 |
/**
|
130 |
* Obtiene la lista de tipos de driver
|
131 |
* @return Lista de tipos de driver registradas o null si no hay ninguno
|
132 |
*/
|
133 |
public static String[] getDriversType(){ |
134 |
if (fileFeature.size() == 0) |
135 |
return null; |
136 |
String[] list = new String[fileFeature.size()]; |
137 |
Set values = fileFeature.entrySet();
|
138 |
int i = 0; |
139 |
for (Iterator it=values.iterator(); it.hasNext(); ) { |
140 |
list[i] = ((WriteFileFormatFeatures)((Map.Entry)it.next()).getValue()).getDriverName();
|
141 |
i++; |
142 |
} |
143 |
|
144 |
return list;
|
145 |
} |
146 |
|
147 |
/**
|
148 |
* Obtiene el tipo de driver a partir de la extensi?n
|
149 |
* @param ext Extensi?n
|
150 |
* @return Tipo
|
151 |
*/
|
152 |
public static String getDriverType(String ext){ |
153 |
return ((WriteFileFormatFeatures)fileFeature.get(ext)).getDriverName();
|
154 |
} |
155 |
|
156 |
/**
|
157 |
* Devuelve el n?mero de drivers soportados
|
158 |
* @return N?mero de drivers soportados
|
159 |
*/
|
160 |
public static int getNDrivers() { |
161 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
162 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
163 |
return extensionPoint.size();
|
164 |
} |
165 |
|
166 |
/**
|
167 |
* Devuelve el n?mero de tipos de driver registrados
|
168 |
* @return N?mero de tipos de driver soportados
|
169 |
*/
|
170 |
public static int getNTypes() { |
171 |
return fileFeature.size();
|
172 |
} |
173 |
|
174 |
/**
|
175 |
* Devuelve el identificador del driver
|
176 |
* @return Identificador del driver
|
177 |
*/
|
178 |
public String getIdent() { |
179 |
return ident;
|
180 |
} |
181 |
|
182 |
/**
|
183 |
* Obtiene el nombre del driver.
|
184 |
* @return Nombre del driver
|
185 |
*/
|
186 |
public String getDriverName() { |
187 |
return driver;
|
188 |
} |
189 |
|
190 |
/**
|
191 |
*
|
192 |
* @return
|
193 |
*/
|
194 |
public String getDriverType() { |
195 |
return driver;
|
196 |
} |
197 |
|
198 |
/**
|
199 |
* Asigna el porcentaje de incremento. Esto es usado por el driver para actualizar
|
200 |
* la variable percent
|
201 |
* @param percent
|
202 |
*/
|
203 |
public void setPercent(int percent) { |
204 |
this.percent = percent;
|
205 |
} |
206 |
|
207 |
/**
|
208 |
* Porcentaje de escritura completado.
|
209 |
* @return Entero con el porcentaje de escritura.
|
210 |
*/
|
211 |
public int getPercent() { |
212 |
return percent;
|
213 |
} |
214 |
|
215 |
/**
|
216 |
* Factoria para obtener escritores de los distintos tipos de raster.
|
217 |
*
|
218 |
* @param fName Nombre del fichero.
|
219 |
* @return GeoRasterWriter, o null si hay problemas.
|
220 |
*/
|
221 |
public static GeoRasterWriter getWriter(String fName) throws NotSupportedExtensionException, RasterDriverException { |
222 |
String ext = RasterUtilities.getExtensionFromFileName(fName);
|
223 |
GeoRasterWriter grw = null;
|
224 |
|
225 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
226 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
227 |
|
228 |
if(extensionPoint.get(ext) == null) |
229 |
return grw;
|
230 |
|
231 |
Class clase = (Class) extensionPoint.get(ext); |
232 |
Class [] args = {String.class}; |
233 |
try {
|
234 |
Constructor hazNuevo = clase.getConstructor(args);
|
235 |
Object [] args2 = {fName}; |
236 |
grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
237 |
} catch (SecurityException e) { |
238 |
throw new RasterDriverException("Error SecurityException in open"); |
239 |
} catch (NoSuchMethodException e) { |
240 |
throw new RasterDriverException("Error NoSuchMethodException in open"); |
241 |
} catch (IllegalArgumentException e) { |
242 |
throw new RasterDriverException("Error IllegalArgumentException in open"); |
243 |
} catch (InstantiationException e) { |
244 |
throw new RasterDriverException("Error InstantiationException in open"); |
245 |
} catch (IllegalAccessException e) { |
246 |
throw new RasterDriverException("Error IllegalAccessException in open"); |
247 |
} catch (InvocationTargetException e) { |
248 |
throw new NotSupportedExtensionException("Error in open"); |
249 |
} |
250 |
return grw;
|
251 |
} |
252 |
|
253 |
/**
|
254 |
* Factoria para obtener escritores de los distintos tipos de raster.
|
255 |
*
|
256 |
* @param fName Nombre del fichero.
|
257 |
* @return GeoRasterWriter, o null si hay problemas.
|
258 |
*/
|
259 |
public static GeoRasterWriter getWriter(IDataWriter dataWriter, |
260 |
String outFileName,
|
261 |
int nBands,
|
262 |
Extent ex, |
263 |
int outSizeX,
|
264 |
int outSizeY,
|
265 |
int dataType,
|
266 |
Params params) throws NotSupportedExtensionException, RasterDriverException {
|
267 |
String ext = outFileName.toLowerCase().substring(outFileName.lastIndexOf('.')+1); |
268 |
GeoRasterWriter grw = null;
|
269 |
|
270 |
ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
271 |
ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
|
272 |
|
273 |
if(extensionPoint.get(ext) == null) |
274 |
return grw;
|
275 |
|
276 |
Class clase = (Class) extensionPoint.get(ext); |
277 |
Class [] args = {IDataWriter.class, String.class, Integer.class, Extent.class, |
278 |
Integer.class, Integer.class, Integer.class, Params.class}; |
279 |
try {
|
280 |
Constructor hazNuevo = clase.getConstructor(args);
|
281 |
Object [] args2 = {dataWriter, outFileName, new Integer(nBands), ex, |
282 |
new Integer(outSizeX), new Integer(outSizeY), new Integer(dataType), params}; |
283 |
grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
284 |
} catch (SecurityException e) { |
285 |
throw new RasterDriverException("Error SecurityException in open"); |
286 |
} catch (NoSuchMethodException e) { |
287 |
throw new RasterDriverException("Error NoSuchMethodException in open"); |
288 |
} catch (IllegalArgumentException e) { |
289 |
throw new RasterDriverException("Error IllegalArgumentException in open"); |
290 |
} catch (InstantiationException e) { |
291 |
throw new RasterDriverException("Error InstantiationException in open"); |
292 |
} catch (IllegalAccessException e) { |
293 |
throw new RasterDriverException("Error IllegalAccessException in open"); |
294 |
} catch (InvocationTargetException e) { |
295 |
throw new NotSupportedExtensionException("Error in open"); |
296 |
} |
297 |
return grw;
|
298 |
} |
299 |
|
300 |
/**
|
301 |
* Obtiene los par?metros del driver.
|
302 |
* @return WriterParams
|
303 |
*/
|
304 |
public Params getParams() {
|
305 |
return driverParams;
|
306 |
} |
307 |
|
308 |
/**
|
309 |
* Asigna los par?metros del driver modificados por el cliente.
|
310 |
* @param Params
|
311 |
*/
|
312 |
public void setParams(Params params) { |
313 |
this.driverParams = params;
|
314 |
} |
315 |
|
316 |
/**
|
317 |
* Asigna propiedades al driver a partir de un vector de
|
318 |
* strings donde cada elemento tiene la estructura de
|
319 |
* propiedad=valor.
|
320 |
* @param props Propiedades
|
321 |
*/
|
322 |
//public abstract void setProps(String[] props);
|
323 |
|
324 |
/**
|
325 |
* Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
|
326 |
* @throws IOException
|
327 |
*/
|
328 |
public abstract void fileWrite() throws IOException; |
329 |
|
330 |
/**
|
331 |
* Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
|
332 |
* @throws IOException
|
333 |
*/
|
334 |
public abstract void dataWrite() throws IOException; |
335 |
|
336 |
/**
|
337 |
* Cierra el driver
|
338 |
*/
|
339 |
public abstract void writeClose(); |
340 |
|
341 |
/**
|
342 |
* Cancela el grabado de datos
|
343 |
*/
|
344 |
public abstract void writeCancel(); |
345 |
|
346 |
/**
|
347 |
* M?todo que pregunta si la extensi?n pasada por par?metro est? soportada
|
348 |
* con el tipo y n?mero de bandas indicadas.
|
349 |
* @param dataType Tipo de dato
|
350 |
* @param bands N?mero de bandas
|
351 |
* @param extensi?n
|
352 |
* @return true si est? soportada y false si no lo est?
|
353 |
*/
|
354 |
public boolean isSupportedThisExtension(String ext, int dataType, int bands) { |
355 |
WriteFileFormatFeatures features = (WriteFileFormatFeatures)fileFeature.get(ext); |
356 |
if(features == null) |
357 |
return false; |
358 |
int bandsSupported = features.getNBandsSupported();
|
359 |
if(bandsSupported != -1 && bandsSupported < bands) |
360 |
return false; |
361 |
int[] dt = features.getDataTypesSupported(); |
362 |
for (int i = 0; i < dt.length; i++) |
363 |
if(dataType == dt[i])
|
364 |
return true; |
365 |
return false; |
366 |
} |
367 |
} |