svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / GeoRasterWriter.java @ 12522
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1 | 10939 | nacho | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | */
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19 | package org.gvsig.raster.dataset; |
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20 | |||
21 | import java.io.IOException; |
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22 | import java.lang.reflect.Constructor; |
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23 | import java.lang.reflect.InvocationTargetException; |
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24 | 11960 | nacho | import java.util.ArrayList; |
25 | 10939 | nacho | import java.util.Iterator; |
26 | import java.util.Map; |
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27 | import java.util.Set; |
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28 | import java.util.TreeMap; |
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29 | |||
30 | 12470 | nacho | import org.cresques.cts.IProjection; |
31 | 11981 | nacho | import org.gvsig.raster.dataset.io.features.WriteFileFormatFeatures; |
32 | 12383 | nacho | import org.gvsig.raster.datastruct.Extent; |
33 | 11284 | nacho | import org.gvsig.raster.util.RasterUtilities; |
34 | 11237 | nacho | import org.gvsig.raster.util.extensionPoints.ExtensionPoint; |
35 | import org.gvsig.raster.util.extensionPoints.ExtensionPoints; |
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36 | import org.gvsig.raster.util.extensionPoints.ExtensionPointsSingleton; |
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37 | 10939 | nacho | |
38 | |||
39 | /**
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40 | * Clase abstracta de la que heredan los drivers de escritura. Tiene los
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41 | * m?todos abstractos que debe implementar cualquier driver de escritura
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42 | * y las funcionalidades y opciones soportadas comunes a todos ellos.
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43 | 11237 | nacho | *
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44 | 10939 | nacho | * @author Nacho Brodin (nachobrodin@gmail.com)
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45 | */
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46 | public abstract class GeoRasterWriter { |
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47 | |||
48 | 11237 | nacho | public static final int MODE_FILEWRITE = 1; |
49 | public static final int MODE_DATAWRITE = 2; |
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50 | |||
51 | 11967 | nacho | public static TreeMap fileFeature = new TreeMap(); |
52 | 10939 | nacho | protected String outFileName = null; |
53 | protected String inFileName = null; |
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54 | protected int sizeWindowX = 0; |
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55 | protected int sizeWindowY = 0; |
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56 | protected int ulX = 0; |
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57 | protected int ulY = 0; |
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58 | protected IDataWriter dataWriter = null; |
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59 | protected int nBands = 0; |
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60 | protected String ident = null; |
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61 | protected String driver = null; |
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62 | 11981 | nacho | protected Params driverParams = null; |
63 | 11237 | nacho | protected Extent extent = null; |
64 | 11522 | nacho | protected int percent = 0; |
65 | 11947 | nacho | protected int dataType = IBuffer.TYPE_BYTE; |
66 | 12470 | nacho | protected IProjection proj = null; |
67 | 10939 | nacho | |
68 | /**
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69 | * Obtiene la lista de extensiones registradas
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70 | * @return Lista de extensiones registradas o null si no hay ninguna
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71 | */
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72 | public static String[] getDriversExtensions(){ |
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73 | 11237 | nacho | ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
74 | ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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75 | if(extensionPoint == null) |
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76 | return null; |
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77 | |||
78 | String[] list = new String[extensionPoint.size()]; |
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79 | Set values = extensionPoint.entrySet();
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80 | 10939 | nacho | int i = 0; |
81 | 11237 | nacho | for (Iterator it = values.iterator(); it.hasNext(); ) { |
82 | 10939 | nacho | list[i] = (String)((Map.Entry)it.next()).getKey(); |
83 | i++; |
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84 | } |
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85 | |||
86 | return list;
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87 | } |
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88 | |||
89 | /**
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90 | 11960 | nacho | * Obtiene la lista de extensiones de ficheros sobre los que se puede salvar en un determinado
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91 | * tipo de datos. Como par?metro de la funci?n se especifica el tipo de datos sobre el que se
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92 | * desea consultar.
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93 | * Este m?todo consulta para cada driver registrado que extensiones soportan un tipoi
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94 | * @return Lista de extensiones registradas que soportan el tipo de datos pasado por par?metro.
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95 | */
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96 | 11967 | nacho | public static ArrayList getExtensionsSupported(int dataType, int bands) throws RasterDriverException { |
97 | 11960 | nacho | ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
98 | ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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99 | if(extensionPoint == null) |
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100 | return null; |
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101 | Set values = extensionPoint.entrySet();
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102 | ArrayList result = new ArrayList(); |
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103 | for (Iterator it = values.iterator(); it.hasNext(); ) { |
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104 | Map.Entry entry = ((Map.Entry)it.next()); |
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105 | String ext = (String)entry.getKey(); |
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106 | Class writerClass = (Class)entry.getValue(); |
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107 | Class [] args = {String.class}; |
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108 | try {
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109 | Constructor hazNuevo = writerClass.getConstructor(args);
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110 | Object [] args2 = {ext}; |
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111 | GeoRasterWriter grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
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112 | 11967 | nacho | if(grw.isSupportedThisExtension(ext, dataType, bands))
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113 | result.add(ext); |
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114 | 11960 | nacho | } catch (SecurityException e) { |
115 | throw new RasterDriverException("Error SecurityException in open"); |
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116 | } catch (NoSuchMethodException e) { |
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117 | throw new RasterDriverException("Error NoSuchMethodException in open"); |
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118 | } catch (IllegalArgumentException e) { |
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119 | throw new RasterDriverException("Error IllegalArgumentException in open"); |
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120 | } catch (InstantiationException e) { |
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121 | throw new RasterDriverException("Error InstantiationException in open"); |
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122 | } catch (IllegalAccessException e) { |
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123 | throw new RasterDriverException("Error IllegalAccessException in open"); |
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124 | } catch (InvocationTargetException e) { |
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125 | throw new RasterDriverException("Error in open"); |
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126 | } |
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127 | } |
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128 | return result;
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129 | } |
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130 | |||
131 | /**
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132 | 10939 | nacho | * Obtiene la lista de tipos de driver
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133 | * @return Lista de tipos de driver registradas o null si no hay ninguno
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134 | */
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135 | public static String[] getDriversType(){ |
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136 | 11967 | nacho | if (fileFeature.size() == 0) |
137 | 10939 | nacho | return null; |
138 | 11967 | nacho | String[] list = new String[fileFeature.size()]; |
139 | Set values = fileFeature.entrySet();
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140 | 10939 | nacho | int i = 0; |
141 | for (Iterator it=values.iterator(); it.hasNext(); ) { |
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142 | 11967 | nacho | list[i] = ((WriteFileFormatFeatures)((Map.Entry)it.next()).getValue()).getDriverName();
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143 | 10939 | nacho | i++; |
144 | } |
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145 | |||
146 | return list;
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147 | } |
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148 | |||
149 | /**
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150 | * Obtiene el tipo de driver a partir de la extensi?n
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151 | * @param ext Extensi?n
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152 | * @return Tipo
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153 | */
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154 | public static String getDriverType(String ext){ |
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155 | 11967 | nacho | return ((WriteFileFormatFeatures)fileFeature.get(ext)).getDriverName();
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156 | 10939 | nacho | } |
157 | |||
158 | /**
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159 | * Devuelve el n?mero de drivers soportados
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160 | * @return N?mero de drivers soportados
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161 | */
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162 | public static int getNDrivers() { |
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163 | 11237 | nacho | ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
164 | ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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165 | return extensionPoint.size();
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166 | 10939 | nacho | } |
167 | |||
168 | /**
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169 | * Devuelve el n?mero de tipos de driver registrados
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170 | * @return N?mero de tipos de driver soportados
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171 | */
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172 | public static int getNTypes() { |
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173 | 11967 | nacho | return fileFeature.size();
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174 | 10939 | nacho | } |
175 | |||
176 | /**
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177 | * Devuelve el identificador del driver
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178 | * @return Identificador del driver
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179 | */
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180 | public String getIdent() { |
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181 | return ident;
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182 | } |
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183 | |||
184 | /**
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185 | * Obtiene el nombre del driver.
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186 | * @return Nombre del driver
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187 | */
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188 | public String getDriverName() { |
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189 | return driver;
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190 | } |
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191 | |||
192 | /**
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193 | *
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194 | * @return
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195 | */
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196 | public String getDriverType() { |
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197 | return driver;
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198 | } |
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199 | |||
200 | /**
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201 | 11522 | nacho | * Asigna el porcentaje de incremento. Esto es usado por el driver para actualizar
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202 | * la variable percent
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203 | * @param percent
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204 | */
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205 | public void setPercent(int percent) { |
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206 | this.percent = percent;
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207 | } |
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208 | |||
209 | /**
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210 | * Porcentaje de escritura completado.
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211 | * @return Entero con el porcentaje de escritura.
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212 | */
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213 | public int getPercent() { |
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214 | return percent;
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215 | } |
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216 | |||
217 | /**
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218 | 10939 | nacho | * Factoria para obtener escritores de los distintos tipos de raster.
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219 | *
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220 | * @param fName Nombre del fichero.
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221 | * @return GeoRasterWriter, o null si hay problemas.
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222 | */
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223 | 11237 | nacho | public static GeoRasterWriter getWriter(String fName) throws NotSupportedExtensionException, RasterDriverException { |
224 | 11284 | nacho | String ext = RasterUtilities.getExtensionFromFileName(fName);
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225 | 10939 | nacho | GeoRasterWriter grw = null;
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226 | |||
227 | 11237 | nacho | ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
228 | ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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229 | |||
230 | if(extensionPoint.get(ext) == null) |
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231 | 10939 | nacho | return grw;
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232 | |||
233 | 11237 | nacho | Class clase = (Class) extensionPoint.get(ext); |
234 | 10939 | nacho | Class [] args = {String.class}; |
235 | try {
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236 | Constructor hazNuevo = clase.getConstructor(args);
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237 | Object [] args2 = {fName}; |
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238 | grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
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239 | } catch (SecurityException e) { |
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240 | 11237 | nacho | throw new RasterDriverException("Error SecurityException in open"); |
241 | 10939 | nacho | } catch (NoSuchMethodException e) { |
242 | 11237 | nacho | throw new RasterDriverException("Error NoSuchMethodException in open"); |
243 | 10939 | nacho | } catch (IllegalArgumentException e) { |
244 | 11237 | nacho | throw new RasterDriverException("Error IllegalArgumentException in open"); |
245 | 10939 | nacho | } catch (InstantiationException e) { |
246 | 11237 | nacho | throw new RasterDriverException("Error InstantiationException in open"); |
247 | 10939 | nacho | } catch (IllegalAccessException e) { |
248 | 11237 | nacho | throw new RasterDriverException("Error IllegalAccessException in open"); |
249 | 10939 | nacho | } catch (InvocationTargetException e) { |
250 | 11237 | nacho | throw new NotSupportedExtensionException("Error in open"); |
251 | 10939 | nacho | } |
252 | return grw;
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253 | } |
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254 | |||
255 | /**
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256 | * Factoria para obtener escritores de los distintos tipos de raster.
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257 | *
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258 | * @param fName Nombre del fichero.
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259 | * @return GeoRasterWriter, o null si hay problemas.
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260 | */
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261 | public static GeoRasterWriter getWriter(IDataWriter dataWriter, |
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262 | String outFileName,
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263 | int nBands,
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264 | Extent ex, |
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265 | int outSizeX,
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266 | int outSizeY,
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267 | 11310 | nacho | int dataType,
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268 | 12470 | nacho | Params params, |
269 | IProjection proj) throws NotSupportedExtensionException, RasterDriverException {
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270 | 10939 | nacho | String ext = outFileName.toLowerCase().substring(outFileName.lastIndexOf('.')+1); |
271 | GeoRasterWriter grw = null;
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272 | |||
273 | 11237 | nacho | ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
274 | ExtensionPoint extensionPoint = (ExtensionPoint)extensionPoints.get("RasterWriter");
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275 | |||
276 | if(extensionPoint.get(ext) == null) |
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277 | 10939 | nacho | return grw;
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278 | 11237 | nacho | |
279 | Class clase = (Class) extensionPoint.get(ext); |
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280 | 11310 | nacho | Class [] args = {IDataWriter.class, String.class, Integer.class, Extent.class, |
281 | 12470 | nacho | Integer.class, Integer.class, Integer.class, Params.class, IProjection.class}; |
282 | 10939 | nacho | try {
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283 | Constructor hazNuevo = clase.getConstructor(args);
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284 | 11310 | nacho | Object [] args2 = {dataWriter, outFileName, new Integer(nBands), ex, |
285 | 12470 | nacho | new Integer(outSizeX), new Integer(outSizeY), new Integer(dataType), params, proj}; |
286 | 10939 | nacho | grw = (GeoRasterWriter) hazNuevo.newInstance(args2); |
287 | } catch (SecurityException e) { |
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288 | 11237 | nacho | throw new RasterDriverException("Error SecurityException in open"); |
289 | 10939 | nacho | } catch (NoSuchMethodException e) { |
290 | 11237 | nacho | throw new RasterDriverException("Error NoSuchMethodException in open"); |
291 | 10939 | nacho | } catch (IllegalArgumentException e) { |
292 | 11237 | nacho | throw new RasterDriverException("Error IllegalArgumentException in open"); |
293 | 10939 | nacho | } catch (InstantiationException e) { |
294 | 11237 | nacho | throw new RasterDriverException("Error InstantiationException in open"); |
295 | 10939 | nacho | } catch (IllegalAccessException e) { |
296 | 11237 | nacho | throw new RasterDriverException("Error IllegalAccessException in open"); |
297 | 10939 | nacho | } catch (InvocationTargetException e) { |
298 | 11237 | nacho | throw new NotSupportedExtensionException("Error in open"); |
299 | 10939 | nacho | } |
300 | return grw;
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301 | } |
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302 | |||
303 | 11237 | nacho | /**
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304 | * Obtiene los par?metros del driver.
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305 | * @return WriterParams
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306 | */
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307 | 11652 | bsanchez | public Params getParams() {
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308 | 11237 | nacho | return driverParams;
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309 | } |
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310 | |||
311 | 10939 | nacho | /**
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312 | 11237 | nacho | * Asigna los par?metros del driver modificados por el cliente.
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313 | 11652 | bsanchez | * @param Params
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314 | 11237 | nacho | */
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315 | 11652 | bsanchez | public void setParams(Params params) { |
316 | 11237 | nacho | this.driverParams = params;
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317 | } |
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318 | |||
319 | /**
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320 | 10939 | nacho | * Asigna propiedades al driver a partir de un vector de
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321 | * strings donde cada elemento tiene la estructura de
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322 | * propiedad=valor.
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323 | * @param props Propiedades
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324 | */
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325 | 11981 | nacho | //public abstract void setProps(String[] props);
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326 | 10939 | nacho | |
327 | /**
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328 | * Realiza la funci?n de compresi?n a partir de un GeoRasterFile.
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329 | * @throws IOException
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330 | */
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331 | public abstract void fileWrite() throws IOException; |
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332 | |||
333 | /**
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334 | * Realiza la funci?n de compresi?n a partir de los datos pasados por el cliente.
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335 | * @throws IOException
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336 | */
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337 | public abstract void dataWrite() throws IOException; |
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338 | |||
339 | /**
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340 | * Cierra el driver
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341 | */
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342 | public abstract void writeClose(); |
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343 | |||
344 | /**
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345 | * Cancela el grabado de datos
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346 | */
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347 | public abstract void writeCancel(); |
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348 | 11960 | nacho | |
349 | 12494 | nacho | /**
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350 | * A?ade la proyecci?n Wkt con la que salvar.
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351 | * @param wkt
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352 | * @throws GdalException
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353 | */
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354 | public abstract void setWkt(String wkt); |
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355 | |||
356 | 11960 | nacho | /**
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357 | 11967 | nacho | * M?todo que pregunta si la extensi?n pasada por par?metro est? soportada
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358 | * con el tipo y n?mero de bandas indicadas.
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359 | * @param dataType Tipo de dato
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360 | * @param bands N?mero de bandas
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361 | * @param extensi?n
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362 | * @return true si est? soportada y false si no lo est?
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363 | 11960 | nacho | */
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364 | 11967 | nacho | public boolean isSupportedThisExtension(String ext, int dataType, int bands) { |
365 | WriteFileFormatFeatures features = (WriteFileFormatFeatures)fileFeature.get(ext); |
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366 | if(features == null) |
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367 | return false; |
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368 | int bandsSupported = features.getNBandsSupported();
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369 | if(bandsSupported != -1 && bandsSupported < bands) |
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370 | return false; |
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371 | int[] dt = features.getDataTypesSupported(); |
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372 | for (int i = 0; i < dt.length; i++) |
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373 | if(dataType == dt[i])
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374 | return true; |
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375 | return false; |
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376 | } |
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377 | 10939 | nacho | } |