root / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / GeoRasterWriter.java @ 11079
History | View | Annotate | Download (8.16 KB)
1 | 10939 | nacho | /* 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.Iterator; |
||
25 | import java.util.Map; |
||
26 | import java.util.Set; |
||
27 | import java.util.TreeMap; |
||
28 | |||
29 | import org.gvsig.raster.shared.Extent; |
||
30 | |||
31 | |||
32 | /**
|
||
33 | * Clase abstracta de la que heredan los drivers de escritura. Tiene los
|
||
34 | * m?todos abstractos que debe implementar cualquier driver de escritura
|
||
35 | * y las funcionalidades y opciones soportadas comunes a todos ellos.
|
||
36 | * @author Nacho Brodin (nachobrodin@gmail.com)
|
||
37 | */
|
||
38 | public abstract class GeoRasterWriter { |
||
39 | |||
40 | public static int blockSizeDefault = 256; |
||
41 | |||
42 | private static TreeMap supportedExtensions = null; |
||
43 | public static TreeMap typeList = new TreeMap(); |
||
44 | protected String outFileName = null; |
||
45 | protected String inFileName = null; |
||
46 | protected int sizeWindowX = 0; |
||
47 | protected int sizeWindowY = 0; |
||
48 | protected int ulX = 0; |
||
49 | protected int ulY = 0; |
||
50 | protected IDataWriter dataWriter = null; |
||
51 | protected int nBands = 0; |
||
52 | protected String ident = null; |
||
53 | protected String driver = null; |
||
54 | |||
55 | /**
|
||
56 | * Registra un formato de escritura
|
||
57 | * @param ext Extensi?n del fichero registrado
|
||
58 | * @param clase Clase que maneja el formato registrado
|
||
59 | */
|
||
60 | public static void registerWriterExtension(String ext, Class clase) { |
||
61 | if (supportedExtensions == null) { |
||
62 | supportedExtensions = new TreeMap(); |
||
63 | } |
||
64 | |||
65 | ext = ext.toLowerCase(); |
||
66 | //System.out.println("Write RASTER: extension '" + ext + "' supported.");
|
||
67 | supportedExtensions.put(ext, clase); |
||
68 | } |
||
69 | |||
70 | /**
|
||
71 | * Obtiene la lista de extensiones registradas
|
||
72 | * @return Lista de extensiones registradas o null si no hay ninguna
|
||
73 | */
|
||
74 | public static String[] getDriversExtensions(){ |
||
75 | if (supportedExtensions.size() == 0) |
||
76 | return null; |
||
77 | String[] list = new String[supportedExtensions.size()]; |
||
78 | Set values = supportedExtensions.entrySet();
|
||
79 | int i = 0; |
||
80 | for (Iterator it=values.iterator(); it.hasNext(); ) { |
||
81 | list[i] = (String)((Map.Entry)it.next()).getKey(); |
||
82 | i++; |
||
83 | } |
||
84 | |||
85 | return list;
|
||
86 | } |
||
87 | |||
88 | /**
|
||
89 | * Obtiene la lista de tipos de driver
|
||
90 | * @return Lista de tipos de driver registradas o null si no hay ninguno
|
||
91 | */
|
||
92 | public static String[] getDriversType(){ |
||
93 | if (typeList.size() == 0) |
||
94 | return null; |
||
95 | String[] list = new String[typeList.size()]; |
||
96 | Set values = typeList.entrySet();
|
||
97 | int i = 0; |
||
98 | for (Iterator it=values.iterator(); it.hasNext(); ) { |
||
99 | list[i] = (String)((Map.Entry)it.next()).getValue(); |
||
100 | i++; |
||
101 | } |
||
102 | |||
103 | return list;
|
||
104 | } |
||
105 | |||
106 | /**
|
||
107 | * Obtiene el tipo de driver a partir de la extensi?n
|
||
108 | * @param ext Extensi?n
|
||
109 | * @return Tipo
|
||
110 | */
|
||
111 | public static String getDriverType(String ext){ |
||
112 | return (String)typeList.get(ext); |
||
113 | } |
||
114 | |||
115 | /**
|
||
116 | * Devuelve el n?mero de drivers soportados
|
||
117 | * @return N?mero de drivers soportados
|
||
118 | */
|
||
119 | public static int getNDrivers() { |
||
120 | return supportedExtensions.size();
|
||
121 | } |
||
122 | |||
123 | /**
|
||
124 | * Devuelve el n?mero de tipos de driver registrados
|
||
125 | * @return N?mero de tipos de driver soportados
|
||
126 | */
|
||
127 | public static int getNTypes() { |
||
128 | return typeList.size();
|
||
129 | } |
||
130 | |||
131 | /**
|
||
132 | * Devuelve el identificador del driver
|
||
133 | * @return Identificador del driver
|
||
134 | */
|
||
135 | public String getIdent() { |
||
136 | return ident;
|
||
137 | } |
||
138 | |||
139 | /**
|
||
140 | * Obtiene el nombre del driver.
|
||
141 | * @return Nombre del driver
|
||
142 | */
|
||
143 | public String getDriverName() { |
||
144 | return driver;
|
||
145 | } |
||
146 | |||
147 | /**
|
||
148 | *
|
||
149 | * @return
|
||
150 | */
|
||
151 | public String getDriverType() { |
||
152 | return driver;
|
||
153 | } |
||
154 | |||
155 | /**
|
||
156 | * Factoria para obtener escritores de los distintos tipos de raster.
|
||
157 | *
|
||
158 | * @param fName Nombre del fichero.
|
||
159 | * @return GeoRasterWriter, o null si hay problemas.
|
||
160 | */
|
||
161 | public static GeoRasterWriter getWriter(String fName) { |
||
162 | String ext = fName.toLowerCase().substring(fName.lastIndexOf('.')+1); |
||
163 | GeoRasterWriter grw = null;
|
||
164 | |||
165 | if (!supportedExtensions.containsKey(ext))
|
||
166 | return grw;
|
||
167 | |||
168 | Class clase = (Class) supportedExtensions.get(ext); |
||
169 | Class [] args = {String.class}; |
||
170 | try {
|
||
171 | Constructor hazNuevo = clase.getConstructor(args);
|
||
172 | Object [] args2 = {fName}; |
||
173 | grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
||
174 | } catch (SecurityException e) { |
||
175 | e.printStackTrace(); |
||
176 | } catch (NoSuchMethodException e) { |
||
177 | e.printStackTrace(); |
||
178 | } catch (IllegalArgumentException e) { |
||
179 | e.printStackTrace(); |
||
180 | } catch (InstantiationException e) { |
||
181 | e.printStackTrace(); |
||
182 | } catch (IllegalAccessException e) { |
||
183 | e.printStackTrace(); |
||
184 | } catch (InvocationTargetException e) { |
||
185 | e.printStackTrace(); |
||
186 | } |
||
187 | return grw;
|
||
188 | } |
||
189 | |||
190 | /**
|
||
191 | * Factoria para obtener escritores de los distintos tipos de raster.
|
||
192 | *
|
||
193 | * @param fName Nombre del fichero.
|
||
194 | * @return GeoRasterWriter, o null si hay problemas.
|
||
195 | */
|
||
196 | public static GeoRasterWriter getWriter(IDataWriter dataWriter, |
||
197 | String outFileName,
|
||
198 | int blockSize,
|
||
199 | int nBands,
|
||
200 | Extent ex, |
||
201 | int compresion,
|
||
202 | int outSizeX,
|
||
203 | int outSizeY,
|
||
204 | int dataType) {
|
||
205 | String ext = outFileName.toLowerCase().substring(outFileName.lastIndexOf('.')+1); |
||
206 | GeoRasterWriter grw = null;
|
||
207 | |||
208 | if (!supportedExtensions.containsKey(ext))
|
||
209 | return grw;
|
||
210 | |||
211 | Class clase = (Class) supportedExtensions.get(ext); |
||
212 | Class [] args = {IDataWriter.class, String.class, Integer.class, Integer.class, |
||
213 | Extent.class, Integer.class, Integer.class, Integer.class, Integer.class}; |
||
214 | try {
|
||
215 | Constructor hazNuevo = clase.getConstructor(args);
|
||
216 | Object [] args2 = {dataWriter, outFileName, new Integer(blockSize), new Integer(nBands), |
||
217 | ex, new Integer(compresion), new Integer(outSizeX), new Integer(outSizeY), new Integer(dataType)}; |
||
218 | grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
||
219 | } catch (SecurityException e) { |
||
220 | e.printStackTrace(); |
||
221 | } catch (NoSuchMethodException e) { |
||
222 | e.printStackTrace(); |
||
223 | } catch (IllegalArgumentException e) { |
||
224 | e.printStackTrace(); |
||
225 | } catch (InstantiationException e) { |
||
226 | e.printStackTrace(); |
||
227 | } catch (IllegalAccessException e) { |
||
228 | e.printStackTrace(); |
||
229 | } catch (InvocationTargetException e) { |
||
230 | e.printStackTrace(); |
||
231 | } |
||
232 | return grw;
|
||
233 | } |
||
234 | |||
235 | /**
|
||
236 | * Asigna propiedades al driver a partir de un vector de
|
||
237 | * strings donde cada elemento tiene la estructura de
|
||
238 | * propiedad=valor.
|
||
239 | * @param props Propiedades
|
||
240 | */
|
||
241 | public abstract void setProps(String[] props); |
||
242 | |||
243 | /**
|
||
244 | * Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
|
||
245 | * @throws IOException
|
||
246 | */
|
||
247 | public abstract void fileWrite() throws IOException; |
||
248 | |||
249 | /**
|
||
250 | * Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
|
||
251 | * @throws IOException
|
||
252 | */
|
||
253 | public abstract void dataWrite() throws IOException; |
||
254 | |||
255 | /**
|
||
256 | * Cierra el driver
|
||
257 | */
|
||
258 | public abstract void writeClose(); |
||
259 | |||
260 | /**
|
||
261 | * Cancela el grabado de datos
|
||
262 | */
|
||
263 | public abstract void writeCancel(); |
||
264 | |||
265 | /**
|
||
266 | * Devuelve la configuraci?n de la ventana de dialogo
|
||
267 | * para las propiedades del driver de escritura que se est? tratando.
|
||
268 | * @return Texto XML con las propiedades
|
||
269 | */
|
||
270 | public abstract String getXMLPropertiesDialog(); |
||
271 | } |