root / tags / v1_0_2_Build_909 / libraries / libCq CMS for java.old / src / org / cresques / io / GeoRasterWriter.java @ 11150
History | View | Annotate | Download (8.23 KB)
1 |
/*
|
---|---|
2 |
* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
|
3 |
*
|
4 |
* Copyright (C) 2004-5.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 2
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program is distributed in the hope that it will be useful,
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program; if not, write to the Free Software
|
18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
19 |
*
|
20 |
* For more information, contact:
|
21 |
*
|
22 |
* cresques@gmail.com
|
23 |
*/
|
24 |
package org.cresques.io; |
25 |
|
26 |
import java.io.IOException; |
27 |
import java.lang.reflect.Constructor; |
28 |
import java.lang.reflect.InvocationTargetException; |
29 |
import java.util.Iterator; |
30 |
import java.util.Map; |
31 |
import java.util.Set; |
32 |
import java.util.TreeMap; |
33 |
|
34 |
import org.cresques.geo.ViewPortData; |
35 |
import org.cresques.px.PxRaster; |
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 |
* @author Nacho Brodin (brodin_ign@gva.es)
|
43 |
*/
|
44 |
public abstract class GeoRasterWriter { |
45 |
|
46 |
public static int blockSizeDefault = 256; |
47 |
|
48 |
private static TreeMap supportedExtensions = null; |
49 |
protected static TreeMap typeList = new TreeMap(); |
50 |
protected String outFileName = null; |
51 |
protected String inFileName = null; |
52 |
protected int sizeWindowX = 0; |
53 |
protected int sizeWindowY = 0; |
54 |
protected int ulX = 0; |
55 |
protected int ulY = 0; |
56 |
protected PxRaster currentRaster;
|
57 |
protected IDataWriter dataWriter = null; |
58 |
protected int nBands = 0; |
59 |
protected String ident = null; |
60 |
protected String driver = null; |
61 |
|
62 |
/**
|
63 |
* Registra un formato de escritura
|
64 |
* @param ext Extensi?n del fichero registrado
|
65 |
* @param clase Clase que maneja el formato registrado
|
66 |
*/
|
67 |
public static void registerWriterExtension(String ext, Class clase) { |
68 |
if (supportedExtensions == null) { |
69 |
supportedExtensions = new TreeMap(); |
70 |
} |
71 |
|
72 |
ext = ext.toLowerCase(); |
73 |
System.out.println("Write RASTER: extension '" + ext + "' supported."); |
74 |
supportedExtensions.put(ext, clase); |
75 |
} |
76 |
|
77 |
/**
|
78 |
* Obtiene la lista de extensiones registradas
|
79 |
* @return Lista de extensiones registradas o null si no hay ninguna
|
80 |
*/
|
81 |
public static String[] getDriversExtensions(){ |
82 |
if (supportedExtensions.size() == 0) |
83 |
return null; |
84 |
String[] list = new String[supportedExtensions.size()]; |
85 |
Set values = supportedExtensions.entrySet();
|
86 |
int i = 0; |
87 |
for (Iterator it=values.iterator(); it.hasNext(); ) { |
88 |
list[i] = (String)((Map.Entry)it.next()).getKey(); |
89 |
i++; |
90 |
} |
91 |
|
92 |
return list;
|
93 |
} |
94 |
|
95 |
/**
|
96 |
* Obtiene la lista de tipos de driver
|
97 |
* @return Lista de tipos de driver registradas o null si no hay ninguno
|
98 |
*/
|
99 |
public static String[] getDriversType(){ |
100 |
if (typeList.size() == 0) |
101 |
return null; |
102 |
String[] list = new String[typeList.size()]; |
103 |
Set values = typeList.entrySet();
|
104 |
int i = 0; |
105 |
for (Iterator it=values.iterator(); it.hasNext(); ) { |
106 |
list[i] = (String)((Map.Entry)it.next()).getValue(); |
107 |
i++; |
108 |
} |
109 |
|
110 |
return list;
|
111 |
} |
112 |
|
113 |
/**
|
114 |
* Obtiene el tipo de driver a partir de la extensi?n
|
115 |
* @param ext Extensi?n
|
116 |
* @return Tipo
|
117 |
*/
|
118 |
public static String getDriverType(String ext){ |
119 |
return (String)typeList.get(ext); |
120 |
} |
121 |
|
122 |
/**
|
123 |
* Devuelve el n?mero de drivers soportados
|
124 |
* @return N?mero de drivers soportados
|
125 |
*/
|
126 |
public static int getNDrivers() { |
127 |
return supportedExtensions.size();
|
128 |
} |
129 |
|
130 |
/**
|
131 |
* Devuelve el n?mero de tipos de driver registrados
|
132 |
* @return N?mero de tipos de driver soportados
|
133 |
*/
|
134 |
public static int getNTypes() { |
135 |
return typeList.size();
|
136 |
} |
137 |
|
138 |
/**
|
139 |
* Devuelve el identificador del driver
|
140 |
* @return Identificador del driver
|
141 |
*/
|
142 |
public String getIdent() { |
143 |
return ident;
|
144 |
} |
145 |
|
146 |
/**
|
147 |
* Obtiene el nombre del driver.
|
148 |
* @return Nombre del driver
|
149 |
*/
|
150 |
public String getDriverName() { |
151 |
return driver;
|
152 |
} |
153 |
|
154 |
/**
|
155 |
*
|
156 |
* @return
|
157 |
*/
|
158 |
public String getDriverType() { |
159 |
return driver;
|
160 |
} |
161 |
|
162 |
/**
|
163 |
* Factoria para obtener escritores de los distintos tipos de raster.
|
164 |
*
|
165 |
* @param fName Nombre del fichero.
|
166 |
* @return GeoRasterWriter, o null si hay problemas.
|
167 |
*/
|
168 |
public static GeoRasterWriter getWriter(String fName) { |
169 |
String ext = fName.toLowerCase().substring(fName.lastIndexOf('.')+1); |
170 |
GeoRasterWriter grw = null;
|
171 |
|
172 |
if (!supportedExtensions.containsKey(ext))
|
173 |
return grw;
|
174 |
|
175 |
Class clase = (Class) supportedExtensions.get(ext); |
176 |
Class [] args = {String.class}; |
177 |
try {
|
178 |
Constructor hazNuevo = clase.getConstructor(args);
|
179 |
Object [] args2 = {fName}; |
180 |
grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
181 |
} catch (SecurityException e) { |
182 |
e.printStackTrace(); |
183 |
} catch (NoSuchMethodException e) { |
184 |
e.printStackTrace(); |
185 |
} catch (IllegalArgumentException e) { |
186 |
e.printStackTrace(); |
187 |
} catch (InstantiationException e) { |
188 |
e.printStackTrace(); |
189 |
} catch (IllegalAccessException e) { |
190 |
e.printStackTrace(); |
191 |
} catch (InvocationTargetException e) { |
192 |
e.printStackTrace(); |
193 |
} |
194 |
return grw;
|
195 |
} |
196 |
|
197 |
/**
|
198 |
* Factoria para obtener escritores de los distintos tipos de raster.
|
199 |
*
|
200 |
* @param fName Nombre del fichero.
|
201 |
* @return GeoRasterWriter, o null si hay problemas.
|
202 |
*/
|
203 |
public static GeoRasterWriter getWriter(IDataWriter dataWriter, |
204 |
String outFileName,
|
205 |
int blockSize,
|
206 |
int nBands,
|
207 |
ViewPortData vp, |
208 |
int compresion,
|
209 |
int outSizeX,
|
210 |
int outSizeY,
|
211 |
int dataType) {
|
212 |
String ext = outFileName.toLowerCase().substring(outFileName.lastIndexOf('.')+1); |
213 |
GeoRasterWriter grw = null;
|
214 |
|
215 |
if (!supportedExtensions.containsKey(ext))
|
216 |
return grw;
|
217 |
|
218 |
Class clase = (Class) supportedExtensions.get(ext); |
219 |
Class [] args = {IDataWriter.class, String.class, Integer.class, Integer.class, |
220 |
ViewPortData.class, Integer.class, Integer.class, Integer.class}; |
221 |
try {
|
222 |
Constructor hazNuevo = clase.getConstructor(args);
|
223 |
Object [] args2 = {dataWriter, outFileName, new Integer(blockSize), new Integer(nBands), |
224 |
vp, new Integer(compresion), new Integer(outSizeX), new Integer(outSizeY)}; |
225 |
grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
226 |
} catch (SecurityException e) { |
227 |
e.printStackTrace(); |
228 |
} catch (NoSuchMethodException e) { |
229 |
e.printStackTrace(); |
230 |
} catch (IllegalArgumentException e) { |
231 |
e.printStackTrace(); |
232 |
} catch (InstantiationException e) { |
233 |
e.printStackTrace(); |
234 |
} catch (IllegalAccessException e) { |
235 |
e.printStackTrace(); |
236 |
} catch (InvocationTargetException e) { |
237 |
e.printStackTrace(); |
238 |
} |
239 |
return grw;
|
240 |
} |
241 |
|
242 |
/**
|
243 |
* Asigna propiedades al driver a partir de un vector de
|
244 |
* strings donde cada elemento tiene la estructura de
|
245 |
* propiedad=valor.
|
246 |
* @param props Propiedades
|
247 |
*/
|
248 |
public abstract void setProps(String[] props); |
249 |
|
250 |
/**
|
251 |
* Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
|
252 |
* @throws IOException
|
253 |
*/
|
254 |
public abstract void fileWrite() throws IOException; |
255 |
|
256 |
/**
|
257 |
* Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
|
258 |
* @throws IOException
|
259 |
*/
|
260 |
public abstract void dataWrite() throws IOException; |
261 |
|
262 |
/**
|
263 |
* Cierra el driver
|
264 |
*/
|
265 |
public abstract void writeClose(); |
266 |
|
267 |
/**
|
268 |
* Cancela el grabado de datos
|
269 |
*/
|
270 |
public abstract void writeCancel(); |
271 |
|
272 |
/**
|
273 |
* Devuelve la configuraci?n de la ventana de dialogo
|
274 |
* para las propiedades del driver de escritura que se est? tratando.
|
275 |
* @return Texto XML con las propiedades
|
276 |
*/
|
277 |
public abstract String getXMLPropertiesDialog(); |
278 |
} |