root / trunk / libraries / libRaster / src / org / gvsig / raster / buffer / cache / RasterCache.java @ 11074
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1 | 11074 | 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 | |||
20 | package org.gvsig.raster.buffer.cache; |
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21 | |||
22 | import java.io.File; |
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23 | import java.io.FileNotFoundException; |
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24 | import java.io.IOException; |
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25 | |||
26 | import org.gvsig.raster.buffer.IBand; |
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27 | import org.gvsig.raster.buffer.RasterBand; |
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28 | import org.gvsig.raster.buffer.RasterBuffer; |
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29 | import org.gvsig.raster.dataset.IBuffer; |
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30 | import org.gvsig.raster.util.DataClassList; |
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31 | import org.gvsig.raster.util.Histogram; |
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32 | import org.gvsig.raster.util.HistogramException; |
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33 | import org.gvsig.raster.util.RasterUtilities; |
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34 | |||
35 | /*
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36 | * TODO: OPTIMIZACION: Trabajo de optimizaci?n en la velocidad e acceso a cach?.
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37 | * TODO: FUNCIONALIDAD: Acabar de implementar los m?todos de acceso a datos, intercambio de bandas, etc...
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38 | */
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39 | /**
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40 | * Esta clase representa un buffer de datos cacheado. El estar en cache significa que
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41 | * solo una parte de los datos estar?n en memoria y que gestiona, dependiendo de las
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42 | * peticiones, que partes hay que cargar a memoria y en que momento. Para esto el buffer
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43 | * no se llena de golpe sino que utiliza una clase que sirve los datos desde la fuente.
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44 | * Esta clase servidora de datos debe implementar el interfaz ICacheDatasetSourcepara
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45 | * servir datos de la forma requerida.
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46 | *
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47 | * @author Nacho Brodin (nachobrodin@gmail.com)
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48 | *
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49 | */
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50 | public class RasterCache extends RasterBuffer implements IBuffer { |
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51 | |||
52 | private Cache cache = null; |
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53 | private LRUAlgorithm lru = null; |
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54 | |||
55 | //TODO: FUNCIONALIDAD: Intercambio de bandas para el buffer cacheado
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56 | |||
57 | public class CacheBand extends RasterBand{ |
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58 | public ICacheDataSource[] cacheDataServer = null; |
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59 | |||
60 | public CacheBand(int height, int width){ |
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61 | super(height, width);
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62 | } |
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63 | |||
64 | public Object getLine(int line) { |
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65 | return null; |
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66 | } |
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67 | |||
68 | public void setLine(int line, Object value){ |
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69 | |||
70 | } |
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71 | |||
72 | public Object getBuf(){ |
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73 | return null; |
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74 | } |
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75 | |||
76 | public void setFileName(int numBand){ |
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77 | for (int i = 0; i < cacheDataServer.length; i++) |
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78 | ((CacheDataServer)cacheDataServer[i]).setName(null, numBand, i);
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79 | } |
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80 | } |
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81 | |||
82 | /**
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83 | * Constructor. Asigna las variables de inicializaci?n y crea la estructura de
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84 | * la cach? con los datos pasados.
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85 | * @param dataType Tipo de dato del buffer
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86 | * @param width Ancho del buffer
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87 | * @param height Alto del buffer
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88 | * @param nBands N?mero de bandas del buffer
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89 | */
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90 | public RasterCache(int dataType, int width, int height, int nBands){ |
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91 | cache = new Cache(nBands, dataType, width, height);
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92 | lru = new LRUAlgorithm(cache);
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93 | |||
94 | this.dataType = dataType;
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95 | this.width = width;
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96 | this.height = height;
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97 | this.nBands = nBands;
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98 | } |
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99 | |||
100 | /*
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101 | * (non-Javadoc)
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102 | * @see org.gvsig.raster.driver.IBuffer#isBandSwitchable()
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103 | */
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104 | public boolean isBandSwitchable(){ |
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105 | return true; |
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106 | } |
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107 | |||
108 | public void malloc(int dataType, int width, int height, int bandNr) { |
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109 | } |
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110 | |||
111 | /**
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112 | * Obtiene la cach?
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113 | * @return
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114 | */
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115 | public Cache getCache() {
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116 | return cache;
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117 | } |
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118 | |||
119 | /**
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120 | * Asigna la cache
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121 | * @param cache
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122 | */
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123 | public void setCache(Cache cache) { |
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124 | this.cache = cache;
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125 | this.lru.setCache(cache);
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126 | } |
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127 | |||
128 | //*********************************************************
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129 | |||
130 | public byte[][] getLineByte(int line) { |
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131 | try {
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132 | lru.cacheAccess(line, true);
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133 | } catch (InvalidPageNumberException e) {return null;} |
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134 | return cache.getAccessPage().getLineByte((line & cache.getOffset()));
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135 | } |
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136 | |||
137 | public short[][] getLineShort(int line) { |
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138 | try {
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139 | lru.cacheAccess(line, true);
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140 | } catch (InvalidPageNumberException e) {return null;} |
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141 | return cache.getAccessPage().getLineShort((line & cache.getOffset()));
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142 | } |
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143 | |||
144 | public int[][] getLineInt(int line) { |
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145 | try {
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146 | lru.cacheAccess(line, true);
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147 | } catch (InvalidPageNumberException e) {return null;} |
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148 | return cache.getAccessPage().getLineInt((line & cache.getOffset()));
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149 | } |
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150 | |||
151 | public float[][] getLineFloat(int line) { |
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152 | try {
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153 | lru.cacheAccess(line, true);
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154 | } catch (InvalidPageNumberException e) {return null;} |
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155 | return cache.getAccessPage().getLineFloat((line & cache.getOffset()));
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156 | } |
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157 | |||
158 | public double[][] getLineDouble(int line) { |
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159 | try {
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160 | lru.cacheAccess(line, true);
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161 | } catch (InvalidPageNumberException e) {return null;} |
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162 | return cache.getAccessPage().getLineDouble((line & cache.getOffset()));
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163 | } |
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164 | |||
165 | //*********************************************************
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166 | |||
167 | public void setLineByte(byte[][] data, int line) { |
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168 | try {
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169 | lru.cacheAccess(line, false);
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170 | } catch (InvalidPageNumberException e) {return;} |
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171 | cache.getAccessPage().setLineByte(data, (line & cache.getOffset())); |
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172 | } |
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173 | |||
174 | public void setLineShort(short[][] data, int line) { |
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175 | try {
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176 | lru.cacheAccess(line, false);
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177 | } catch (InvalidPageNumberException e) {return;} |
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178 | cache.getAccessPage().setLineShort(data, (line & cache.getOffset())); |
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179 | } |
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180 | |||
181 | public void setLineInt(int[][] data, int line) { |
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182 | try {
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183 | lru.cacheAccess(line, false);
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184 | } catch (InvalidPageNumberException e) {return;} |
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185 | cache.getAccessPage().setLineInt(data, (line & cache.getOffset())); |
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186 | } |
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187 | |||
188 | public void setLineFloat(float[][] data, int line) { |
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189 | try {
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190 | lru.cacheAccess(line, false);
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191 | } catch (InvalidPageNumberException e) {return;} |
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192 | cache.getAccessPage().setLineFloat(data, (line & cache.getOffset())); |
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193 | } |
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194 | |||
195 | public void setLineDouble(double[][] data, int line) { |
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196 | try {
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197 | lru.cacheAccess(line, false);
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198 | } catch (InvalidPageNumberException e) {return;} |
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199 | cache.getAccessPage().setLineDouble(data, (line & cache.getOffset())); |
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200 | } |
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201 | |||
202 | //*********************************************************
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203 | |||
204 | public byte[] getLineFromBandByte(int line, int band) { |
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205 | try {
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206 | lru.cacheAccess(line, true);
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207 | } catch (InvalidPageNumberException e) {return null;} |
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208 | return cache.getAccessPage().getLineFromBandByte((line & cache.getOffset()), band);
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209 | } |
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210 | |||
211 | public short[] getLineFromBandShort(int line, int band) { |
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212 | try {
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213 | lru.cacheAccess(line, true);
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214 | } catch (InvalidPageNumberException e) {return null;} |
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215 | return cache.getAccessPage().getLineFromBandShort((line & cache.getOffset()), band);
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216 | } |
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217 | |||
218 | public int[] getLineFromBandInt(int line, int band) { |
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219 | try {
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220 | lru.cacheAccess(line, true);
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221 | } catch (InvalidPageNumberException e) {return null;} |
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222 | return cache.getAccessPage().getLineFromBandInt((line & cache.getOffset()), band);
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223 | } |
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224 | |||
225 | public float[] getLineFromBandFloat(int line, int band) { |
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226 | try {
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227 | lru.cacheAccess(line, true);
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228 | } catch (InvalidPageNumberException e) {return null;} |
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229 | return cache.getAccessPage().getLineFromBandFloat((line & cache.getOffset()), band);
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230 | } |
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231 | |||
232 | public double[] getLineFromBandDouble(int line, int band) { |
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233 | try {
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234 | lru.cacheAccess(line, true);
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235 | } catch (InvalidPageNumberException e) {return null;} |
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236 | return cache.getAccessPage().getLineFromBandDouble((line & cache.getOffset()), band);
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237 | } |
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238 | |||
239 | //*********************************************************
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240 | |||
241 | public void setLineInBandByte(byte[] data, int line, int band) { |
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242 | try {
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243 | lru.cacheAccess(line, false);
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244 | } catch (InvalidPageNumberException e) {return;} |
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245 | cache.getAccessPage().setLineInBandByte(data, (line & cache.getOffset()), band); |
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246 | } |
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247 | |||
248 | public void setLineInBandShort(short[] data, int line, int band) { |
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249 | try {
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250 | lru.cacheAccess(line, false);
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251 | } catch (InvalidPageNumberException e) {return;} |
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252 | cache.getAccessPage().setLineInBandShort(data, (line & cache.getOffset()), band); |
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253 | } |
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254 | |||
255 | public void setLineInBandInt(int[] data, int line, int band) { |
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256 | try {
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257 | lru.cacheAccess(line, false);
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258 | } catch (InvalidPageNumberException e) {return;} |
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259 | cache.getAccessPage().setLineInBandInt(data, (line & cache.getOffset()), band); |
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260 | } |
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261 | |||
262 | public void setLineInBandFloat(float[] data, int line, int band) { |
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263 | try {
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264 | lru.cacheAccess(line, false);
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265 | } catch (InvalidPageNumberException e) {return;} |
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266 | cache.getAccessPage().setLineInBandFloat(data, (line & cache.getOffset()), band); |
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267 | } |
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268 | |||
269 | public void setLineInBandDouble(double[] data, int line, int band) { |
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270 | try {
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271 | lru.cacheAccess(line, false);
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272 | } catch (InvalidPageNumberException e) {return;} |
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273 | cache.getAccessPage().setLineInBandDouble(data, (line & cache.getOffset()), band); |
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274 | } |
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275 | |||
276 | //*********************************************************
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277 | |||
278 | public byte getElemByte(int line, int col, int band) { |
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279 | try {
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280 | lru.cacheAccess(line, true);
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281 | } catch (InvalidPageNumberException e) {
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282 | return (byte)getNoDataValue(); //No leemos el dato |
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283 | } |
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284 | return cache.getAccessPage().getElemByte((line & cache.getOffset()), col, band);
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285 | } |
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286 | |||
287 | public short getElemShort(int line, int col, int band) { |
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288 | try {
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289 | lru.cacheAccess(line, true);
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290 | } catch (InvalidPageNumberException e) {
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291 | return (short)getNoDataValue(); //No leemos el dato |
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292 | } |
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293 | return cache.getAccessPage().getElemShort((line & cache.getOffset()), col, band);
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294 | } |
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295 | |||
296 | public int getElemInt(int line, int col, int band) { |
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297 | try {
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298 | lru.cacheAccess(line, true);
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299 | } catch (InvalidPageNumberException e) {
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300 | return (int)getNoDataValue(); //No leemos el dato |
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301 | } |
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302 | return cache.getAccessPage().getElemInt((line & cache.getOffset()), col, band);
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303 | } |
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304 | |||
305 | public float getElemFloat(int line, int col, int band) { |
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306 | try {
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307 | lru.cacheAccess(line, true);
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308 | } catch (InvalidPageNumberException e) {
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309 | return (float)getNoDataValue(); //No leemos el dato |
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310 | } |
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311 | return cache.getAccessPage().getElemFloat((line & cache.getOffset()), col, band);
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312 | } |
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313 | |||
314 | public double getElemDouble(int line, int col, int band) { |
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315 | try {
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316 | lru.cacheAccess(line, true);
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317 | } catch (InvalidPageNumberException e) {
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318 | return (double)getNoDataValue(); //No leemos el dato |
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319 | } |
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320 | return cache.getAccessPage().getElemDouble((line & cache.getOffset()), col, band);
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321 | } |
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322 | |||
323 | //*********************************************************
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324 | |||
325 | public void setElem(int line, int col, int band, byte data) { |
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326 | try {
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327 | lru.cacheAccess(line, false);
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328 | } catch (InvalidPageNumberException e) { return;} |
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329 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, data); |
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330 | } |
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331 | |||
332 | public void setElem(int line, int col, int band, short data) { |
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333 | try {
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334 | lru.cacheAccess(line, false);
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335 | } catch (InvalidPageNumberException e) {return;} |
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336 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, data); |
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337 | } |
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338 | |||
339 | public void setElem(int line, int col, int band, int data) { |
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340 | try {
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341 | lru.cacheAccess(line, false);
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342 | } catch (InvalidPageNumberException e) {return;} |
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343 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, data); |
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344 | } |
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345 | |||
346 | public void setElem(int line, int col, int band, float data) { |
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347 | try {
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348 | lru.cacheAccess(line, false);
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349 | } catch (InvalidPageNumberException e) {return;} |
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350 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, data); |
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351 | } |
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352 | |||
353 | public void setElem(int line, int col, int band, double data) { |
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354 | try {
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355 | lru.cacheAccess(line, false);
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356 | } catch (InvalidPageNumberException e) {return;} |
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357 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, data); |
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358 | } |
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359 | |||
360 | //*********************************************************
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361 | |||
362 | public void getElemByte(int line, int col, byte[] data) { |
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363 | try {
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364 | lru.cacheAccess(line, true);
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365 | } catch (InvalidPageNumberException e) {
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366 | for (int iBand = 0; iBand < data.length; iBand++) |
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367 | data[iBand] = (byte)getNoDataValue();
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368 | } |
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369 | cache.getAccessPage().getElemByte((line & cache.getOffset()), col, data); |
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370 | } |
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371 | |||
372 | public void getElemShort(int line, int col, short[] data) { |
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373 | try {
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374 | lru.cacheAccess(line, true);
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375 | } catch (InvalidPageNumberException e) {
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376 | for (int iBand = 0; iBand < data.length; iBand++) |
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377 | data[iBand] = (short)getNoDataValue();
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378 | } |
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379 | cache.getAccessPage().getElemShort((line & cache.getOffset()), col, data); |
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380 | } |
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381 | |||
382 | public void getElemInt(int line, int col, int[] data) { |
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383 | try {
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384 | lru.cacheAccess(line, true);
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385 | } catch (InvalidPageNumberException e) {
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386 | for (int iBand = 0; iBand < data.length; iBand++) |
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387 | data[iBand] = (int)getNoDataValue();
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388 | } |
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389 | cache.getAccessPage().getElemInt((line & cache.getOffset()), col, data); |
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390 | } |
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391 | |||
392 | public void getElemFloat(int line, int col, float[] data) { |
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393 | try {
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394 | lru.cacheAccess(line, true);
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395 | } catch (InvalidPageNumberException e) {
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396 | for (int iBand = 0; iBand < data.length; iBand++) |
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397 | data[iBand] = (float)getNoDataValue();
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398 | } |
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399 | cache.getAccessPage().getElemFloat((line & cache.getOffset()), col, data); |
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400 | } |
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401 | |||
402 | public void getElemDouble(int line, int col, double[] data) { |
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403 | try {
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404 | lru.cacheAccess(line, true);
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405 | } catch (InvalidPageNumberException e) {
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406 | for (int iBand = 0; iBand < data.length; iBand++) |
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407 | data[iBand] = (double)getNoDataValue();
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408 | } |
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409 | cache.getAccessPage().getElemDouble((line & cache.getOffset()), col, data); |
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410 | } |
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411 | |||
412 | //*********************************************************
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413 | |||
414 | public void setElemByte(int line, int col, byte[] data) { |
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415 | try {
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416 | lru.cacheAccess(line, false);
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417 | } catch (InvalidPageNumberException e) {return;} |
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418 | cache.getAccessPage().setElemByte((line & cache.getOffset()), col, data); |
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419 | } |
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420 | |||
421 | public void setElemShort(int line, int col, short[] data) { |
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422 | try {
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423 | lru.cacheAccess(line, false);
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424 | } catch (InvalidPageNumberException e) {return;} |
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425 | cache.getAccessPage().setElemShort((line & cache.getOffset()), col, data); |
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426 | } |
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427 | |||
428 | public void setElemInt(int line, int col, int[] data) { |
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429 | try {
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430 | lru.cacheAccess(line, false);
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431 | } catch (InvalidPageNumberException e) {return;} |
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432 | cache.getAccessPage().setElemInt((line & cache.getOffset()), col, data); |
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433 | } |
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434 | |||
435 | public void setElemFloat(int line, int col, float[] data) { |
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436 | try {
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437 | lru.cacheAccess(line, false);
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438 | } catch (InvalidPageNumberException e) {return;} |
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439 | cache.getAccessPage().setElemFloat((line & cache.getOffset()), col, data); |
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440 | } |
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441 | |||
442 | public void setElemDouble(int line, int col, double[] data) { |
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443 | try {
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444 | lru.cacheAccess(line, false);
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445 | } catch (InvalidPageNumberException e) {return;} |
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446 | cache.getAccessPage().setElemDouble((line & cache.getOffset()), col, data); |
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447 | } |
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448 | |||
449 | /*
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450 | * (non-Javadoc)
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451 | * @see org.gvsig.fmap.driver.IBuffer#getBandBuffer(int)
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452 | */
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453 | public IBuffer getBandBuffer(int iBand){ |
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454 | RasterCache rasterCache = new RasterCache(getDataType(), getWidth(), getHeight(), 1); |
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455 | CacheStruct cs = new CacheStruct();
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456 | cs.setHPag(cache.getCacheStruct().getHPag()); |
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457 | cs.setOffset(cache.getCacheStruct().getOffset()); |
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458 | cs.setNPags(cache.getCacheStruct().getNPags()); |
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459 | cs.setNBands(1);
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460 | cs.setNGroups(cache.getCacheStruct().getNGroups()); |
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461 | cs.setBitsPag(cache.getCacheStruct().getBitsPag()); |
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462 | cs.setNTotalPags((int)(getHeight() / cache.getCacheStruct().getHPag()));
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463 | cs.setDataType(cache.getCacheStruct().getDataType()); |
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464 | |||
465 | Cache c = new Cache(cs, getWidth());
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466 | rasterCache.setCache(c); |
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467 | |||
468 | IBand band = getBand(iBand); |
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469 | rasterCache.assignBand(0, band);
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470 | return rasterCache;
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471 | } |
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472 | |||
473 | /*
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474 | * (non-Javadoc)
|
||
475 | * @see org.gvsig.fmap.driver.IBuffer#replicateBand(int, int)
|
||
476 | */
|
||
477 | public void replicateBand(int orig, int dest) { |
||
478 | } |
||
479 | |||
480 | /*
|
||
481 | * (non-Javadoc)
|
||
482 | * @see org.gvsig.fmap.dataaccess.buffer.RasterBuffer#switchBands(int[])
|
||
483 | */
|
||
484 | public void switchBands(int[] bandPosition){ |
||
485 | |||
486 | } |
||
487 | |||
488 | //*********************************************************
|
||
489 | |||
490 | public RasterBuffer adjustRasterNearestNeighbourInterpolation(int w, int h, int[] bands) { |
||
491 | return null; |
||
492 | } |
||
493 | |||
494 | public RasterBuffer adjustRasterBilinearInterpolation(int w, int h, int[] bands) { |
||
495 | return null; |
||
496 | } |
||
497 | |||
498 | public RasterBuffer adjustRasterInverseDistanceInterpolation(int w, int h, int[] bands) { |
||
499 | return null; |
||
500 | } |
||
501 | |||
502 | public RasterBuffer adjustRasterBicubicSplineInterpolation(int w, int h, int[] bands) { |
||
503 | return null; |
||
504 | } |
||
505 | |||
506 | public RasterBuffer adjustRasterBSplineInterpolation(int w, int h, int[] bands) { |
||
507 | return null; |
||
508 | } |
||
509 | |||
510 | //*********************************************************
|
||
511 | |||
512 | public void assign(int band, byte value) { |
||
513 | for(int line = 0; line < height; line ++){ |
||
514 | boolean beginLine = true; //Para acelerar solo comprobar? si la p?gina est? en cach? cada vez que empieza una l?nea |
||
515 | for(int col = 0; col < width; col ++){ |
||
516 | try {
|
||
517 | if(beginLine){
|
||
518 | lru.cacheAccess(line, false);
|
||
519 | beginLine = false;
|
||
520 | } |
||
521 | } catch (InvalidPageNumberException e) {return;} |
||
522 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, value); |
||
523 | } |
||
524 | } |
||
525 | } |
||
526 | |||
527 | public void assign(int band, short value) { |
||
528 | for(int line = 0; line < height; line ++){ |
||
529 | boolean beginLine = true; //Para acelerar solo comprobar? si la p?gina est? en cach? cada vez que empieza una l?nea |
||
530 | for(int col = 0; col < width; col ++){ |
||
531 | try {
|
||
532 | if(beginLine){
|
||
533 | lru.cacheAccess(line, false);
|
||
534 | beginLine = false;
|
||
535 | } |
||
536 | } catch (InvalidPageNumberException e) {return;} |
||
537 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, value); |
||
538 | } |
||
539 | } |
||
540 | } |
||
541 | |||
542 | public void assign(int band, int value) { |
||
543 | for(int line = 0; line < height; line ++){ |
||
544 | boolean beginLine = true; //Para acelerar solo comprobar? si la p?gina est? en cach? cada vez que empieza una l?nea |
||
545 | for(int col = 0; col < width; col ++){ |
||
546 | try {
|
||
547 | if(beginLine){
|
||
548 | lru.cacheAccess(line, false);
|
||
549 | beginLine = false;
|
||
550 | } |
||
551 | } catch (InvalidPageNumberException e) {return;} |
||
552 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, value); |
||
553 | } |
||
554 | } |
||
555 | } |
||
556 | |||
557 | public void assign(int band, float value) { |
||
558 | for(int line = 0; line < height; line ++){ |
||
559 | boolean beginLine = true; //Para acelerar solo comprobar? si la p?gina est? en cach? cada vez que empieza una l?nea |
||
560 | for(int col = 0; col < width; col ++){ |
||
561 | try {
|
||
562 | if(beginLine){
|
||
563 | lru.cacheAccess(line, false);
|
||
564 | beginLine = false;
|
||
565 | } |
||
566 | } catch (InvalidPageNumberException e) {return;} |
||
567 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, value); |
||
568 | } |
||
569 | } |
||
570 | } |
||
571 | |||
572 | public void assign(int band, double value) { |
||
573 | for(int line = 0; line < height; line ++){ |
||
574 | boolean beginLine = true; //Para acelerar solo comprobar? si la p?gina est? en cach? cada vez que empieza una l?nea |
||
575 | for(int col = 0; col < width; col ++){ |
||
576 | try {
|
||
577 | if(beginLine){
|
||
578 | lru.cacheAccess(line, false);
|
||
579 | beginLine = false;
|
||
580 | } |
||
581 | } catch (InvalidPageNumberException e) {return;} |
||
582 | cache.getAccessPage().setElem((line & cache.getOffset()), col, band, value); |
||
583 | } |
||
584 | } |
||
585 | } |
||
586 | |||
587 | /*
|
||
588 | * (non-Javadoc)
|
||
589 | * @see org.gvsig.fmap.driver.IBuffer#cloneBuffer()
|
||
590 | */
|
||
591 | public IBuffer cloneBuffer(){
|
||
592 | return null; |
||
593 | } |
||
594 | |||
595 | /*
|
||
596 | * (non-Javadoc)
|
||
597 | * @see org.gvsig.fmap.driver.IBuffer#interchangeBands(int, int)
|
||
598 | */
|
||
599 | public void interchangeBands(int band1, int band2) { |
||
600 | IBand b1 = getBand(band1); |
||
601 | IBand b2 = getBand(band2); |
||
602 | |||
603 | try {
|
||
604 | cache.assignBand(band2, ((CacheBand)b1).cacheDataServer); |
||
605 | cache.assignBand(band1, ((CacheBand)b2).cacheDataServer); |
||
606 | } catch (IOException e) { |
||
607 | e.printStackTrace(); |
||
608 | } |
||
609 | |||
610 | } |
||
611 | |||
612 | /*
|
||
613 | * (non-Javadoc)
|
||
614 | * @see org.gvsig.fmap.driver.IBuffer#mallocOneBand(int, int, int, int)
|
||
615 | */
|
||
616 | public void mallocOneBand(int dataType, int width, int height, int band) { |
||
617 | |||
618 | } |
||
619 | |||
620 | /*
|
||
621 | * (non-Javadoc)
|
||
622 | * @see org.gvsig.raster.driver.IBuffer#getBand(int)
|
||
623 | */
|
||
624 | public IBand getBand(int band) { |
||
625 | CacheBand cb = new CacheBand(getHeight(), getWidth());
|
||
626 | cb.cacheDataServer = new CacheDataServer[cache.getNTotalPags()];
|
||
627 | |||
628 | try {
|
||
629 | cache.resetCache(); |
||
630 | } catch (IOException e) { |
||
631 | //TODO: EXCEPCIONES: Modificar el manejo de excepciones de RasterBuffer para q lance las apropiadas con cach?
|
||
632 | return null; |
||
633 | } |
||
634 | for (int iPage = 0; iPage < cache.getNTotalPags(); iPage++) |
||
635 | cb.cacheDataServer[iPage] = cache.getHddPage(iPage, band); |
||
636 | |||
637 | return cb;
|
||
638 | } |
||
639 | |||
640 | /*
|
||
641 | * (non-Javadoc)
|
||
642 | * @see org.gvsig.fmap.driver.IBuffer#copyBand(int, org.gvsig.fmap.dataaccess.buffer.IBand)
|
||
643 | */
|
||
644 | public void copyBand(int nBand, IBand band) { |
||
645 | if(band instanceof CacheBand){ |
||
646 | CacheBand cb = new CacheBand(band.getHeight(), band.getWidth());
|
||
647 | cb.cacheDataServer = new CacheDataServer[((CacheBand)band).cacheDataServer.length];
|
||
648 | |||
649 | for (int iPage = 0; iPage < cb.cacheDataServer.length; iPage++) { |
||
650 | cb.cacheDataServer[iPage] = new CacheDataServer(null, nBand, iPage); |
||
651 | String path = ((CacheBand)band).cacheDataServer[iPage].getPath();
|
||
652 | File f = new File(path); |
||
653 | if(f.exists()){
|
||
654 | try {
|
||
655 | RasterUtilities.copyFile(path, cb.cacheDataServer[iPage].getPath()); |
||
656 | } catch (FileNotFoundException e) { |
||
657 | //TODO: EXCEPCIONES: Modificar el manejo de excepciones de RasterBuffer para q lance las apropiadas con cach?
|
||
658 | e.printStackTrace(); |
||
659 | } catch (IOException e) { |
||
660 | e.printStackTrace(); |
||
661 | } |
||
662 | } |
||
663 | } |
||
664 | try {
|
||
665 | cache.deleteBand(nBand); |
||
666 | cache.assignBand(nBand, cb.cacheDataServer); |
||
667 | } catch (IOException e) { |
||
668 | e.printStackTrace(); |
||
669 | } |
||
670 | |||
671 | } |
||
672 | } |
||
673 | |||
674 | /*
|
||
675 | * (non-Javadoc)
|
||
676 | * @see org.gvsig.fmap.driver.IBuffer#assignBand(int, org.gvsig.fmap.dataaccess.buffer.IBand)
|
||
677 | */
|
||
678 | public void assignBand(int nBand, IBand band) { |
||
679 | if(band instanceof CacheBand) { |
||
680 | //((CacheBand)band).setFileName(nBand);
|
||
681 | try {
|
||
682 | cache.deleteBand(nBand); |
||
683 | cache.assignBand(nBand, ((CacheBand)band).cacheDataServer); |
||
684 | } catch (IOException e) { |
||
685 | //TODO: EXCEPCIONES: Modificar el manejo de excepciones de RasterBuffer para q lance las apropiadas con cach?
|
||
686 | return;
|
||
687 | } |
||
688 | |||
689 | } |
||
690 | } |
||
691 | |||
692 | /*
|
||
693 | * (non-Javadoc)
|
||
694 | * @see org.gvsig.fmap.driver.IBuffer#createBand(byte)
|
||
695 | */
|
||
696 | public IBand createBand(byte defaultValue) { |
||
697 | PageBandBuffer pageBuffer = new PageBandBuffer(getDataType(), getWidth(), cache.getHPag(), 1, true, 0); |
||
698 | IBand band = null;
|
||
699 | try {
|
||
700 | band = createBand(pageBuffer); |
||
701 | } catch (IOException e) { |
||
702 | return null; |
||
703 | } |
||
704 | loadPage(new Byte(defaultValue), pageBuffer); |
||
705 | return band;
|
||
706 | } |
||
707 | |||
708 | /*
|
||
709 | * (non-Javadoc)
|
||
710 | * @see org.gvsig.fmap.driver.IBuffer#assignBandToNotValid(int)
|
||
711 | */
|
||
712 | public void assignBandToNotValid(int iBand) { |
||
713 | PageBandBuffer pageBuffer = new PageBandBuffer(getDataType(), getWidth(), cache.getHPag(), 1, true, 0); |
||
714 | |||
715 | switch(getDataType()){
|
||
716 | case IBuffer.TYPE_BYTE: loadPage(new Byte((byte)getNotValidValue()), pageBuffer);break; |
||
717 | case IBuffer.TYPE_SHORT: loadPage(new Short((short)getNotValidValue()), pageBuffer);break; |
||
718 | case IBuffer.TYPE_INT: loadPage(new Integer((int)getNotValidValue()), pageBuffer);break; |
||
719 | case IBuffer.TYPE_FLOAT: loadPage(new Float((float)getNotValidValue()), pageBuffer);break; |
||
720 | case IBuffer.TYPE_DOUBLE: loadPage(new Double((double)getNotValidValue()), pageBuffer);break; |
||
721 | } |
||
722 | |||
723 | try {
|
||
724 | CacheBand cb = (CacheBand)createBand(pageBuffer); |
||
725 | cb.setFileName(iBand); |
||
726 | assignBand(iBand, cb); |
||
727 | } catch (IOException e) { |
||
728 | //TODO: EXCEPCIONES: Modificar el manejo de excepciones de RasterBuffer para q lance las apropiadas con cach?
|
||
729 | e.printStackTrace(); |
||
730 | } |
||
731 | } |
||
732 | |||
733 | /**
|
||
734 | * Creaci?n de una banda a partir de una pagina de cache cargada con datos.
|
||
735 | * @param pageBuffer Pagina de cache cargada de datos
|
||
736 | * @param numBand N?mero de banda a la que representa
|
||
737 | * @return IBand
|
||
738 | * @throws IOException
|
||
739 | */
|
||
740 | private IBand createBand(PageBandBuffer pageBuffer) throws IOException{ |
||
741 | CacheDataServer[] ds = new CacheDataServer[cache.getNTotalPags()]; |
||
742 | for (int i = 0; i < cache.getNTotalPags(); i++) { |
||
743 | ds[i] = new CacheDataServer(null, 0, i); |
||
744 | ds[i].savePage(pageBuffer); |
||
745 | } |
||
746 | CacheBand band = new CacheBand(getHeight(), getWidth());
|
||
747 | band.cacheDataServer = ds; |
||
748 | return band;
|
||
749 | } |
||
750 | |||
751 | /**
|
||
752 | * Carga la p?gina con el valor pasado por par?metro. El valor ser? del mismo tipo de dato
|
||
753 | * que el buffer actual.
|
||
754 | * @param value Valor a inicializar
|
||
755 | * @param pageBuffer P?gina
|
||
756 | */
|
||
757 | private void loadPage(Object value, PageBandBuffer pageBuffer){ |
||
758 | switch(getDataType()){
|
||
759 | case IBuffer.TYPE_BYTE: for(int i = 0 ; i < getWidth(); i ++) |
||
760 | for(int j = 0 ; j < cache.getHPag(); j ++) |
||
761 | pageBuffer.setElem(j, i, 0, ((Byte)value).byteValue()); |
||
762 | break;
|
||
763 | case IBuffer.TYPE_SHORT: for(int i = 0 ; i < getWidth(); i ++) |
||
764 | for(int j = 0 ; j < cache.getHPag(); j ++) |
||
765 | pageBuffer.setElem(j, i, 0, ((Short)value).shortValue()); |
||
766 | break;
|
||
767 | case IBuffer.TYPE_INT: for(int i = 0 ; i < getWidth(); i ++) |
||
768 | for(int j = 0 ; j < cache.getHPag(); j ++) |
||
769 | pageBuffer.setElem(j, i, 0, ((Integer)value).intValue()); |
||
770 | break;
|
||
771 | case IBuffer.TYPE_FLOAT:for(int i = 0 ; i < getWidth(); i ++) |
||
772 | for(int j = 0 ; j < cache.getHPag(); j ++) |
||
773 | pageBuffer.setElem(j, i, 0, ((Float)value).floatValue()); |
||
774 | break;
|
||
775 | case IBuffer.TYPE_DOUBLE:for(int i = 0 ; i < getWidth(); i ++) |
||
776 | for(int j = 0 ; j < cache.getHPag(); j ++) |
||
777 | pageBuffer.setElem(j, i, 0, ((Double)value).doubleValue()); |
||
778 | break;
|
||
779 | } |
||
780 | } |
||
781 | |||
782 | public int getPercent() { |
||
783 | return super.percent; |
||
784 | } |
||
785 | } |