gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.lib / org.gvsig.raster.lib.impl / src / main / java / org / gvsig / raster / impl / store / properties / MultiProviderStatistics.java @ 8703
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1 | 2443 | nbrodin | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | package org.gvsig.raster.impl.store.properties; |
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23 | |||
24 | import java.util.List; |
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25 | |||
26 | import org.gvsig.fmap.dal.coverage.RasterLibrary; |
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27 | import org.gvsig.fmap.dal.coverage.exception.FileNotOpenException; |
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28 | import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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29 | import org.gvsig.fmap.dal.coverage.exception.RasterDriverException; |
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30 | import org.gvsig.fmap.dal.coverage.exception.RmfSerializerException; |
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31 | import org.gvsig.fmap.dal.coverage.store.props.Statistics; |
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32 | import org.gvsig.raster.impl.provider.RasterProvider; |
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33 | |||
34 | |||
35 | /**
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36 | * Estadisticas asociadas a un fichero raster formado por multiples ficheros.
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37 | *
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38 | * @author Nacho Brodin (nachobrodin@gmail.com)
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39 | */
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40 | public class MultiProviderStatistics extends AbstractStatistics { |
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41 | protected Statistics[] statList = null; |
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42 | protected int nBands = 0; |
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43 | protected boolean forceToRecalc = false; |
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44 | protected RasterProvider provider = null; |
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45 | |||
46 | /**
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47 | * Constructor
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48 | */
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49 | public MultiProviderStatistics() {
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50 | } |
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51 | |||
52 | /**
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53 | * Constructor
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54 | */
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55 | public MultiProviderStatistics(List<RasterProvider> providerList, RasterProvider provider) { |
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56 | this(providerList);
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57 | this.provider = provider;
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58 | } |
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59 | |||
60 | /**
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61 | * Constructor
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62 | */
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63 | @SuppressWarnings("unused") |
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64 | private MultiProviderStatistics(RasterProvider[] providerList) { |
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65 | statList = new Statistics[providerList.length];
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66 | |||
67 | for(int i = 0; i < providerList.length; i ++) { |
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68 | statList[i] = providerList[i].getStatistics(); |
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69 | this.nBands += providerList[i].getBandCount();
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70 | } |
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71 | } |
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72 | |||
73 | /**
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74 | * Constructor
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75 | */
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76 | private MultiProviderStatistics(List<RasterProvider> providerList) { |
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77 | statList = new Statistics[providerList.size()];
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78 | for(int i = 0; i < providerList.size(); i ++) { |
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79 | if(providerList.get(i) != null) { |
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80 | statList[i] = providerList.get(i).getStatistics(); |
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81 | this.nBands += providerList.get(i).getBandCount();
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82 | } |
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83 | } |
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84 | } |
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85 | |||
86 | /**
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87 | * Constructor
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88 | */
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89 | @SuppressWarnings("unused") |
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90 | private MultiProviderStatistics(Statistics[] statList, int nBands) { |
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91 | this.nBands = nBands;
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92 | this.statList = statList;
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93 | for(int nDataset = 0; nDataset < statList.length; nDataset ++) { |
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94 | try {
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95 | statList[nDataset].calculate(RasterLibrary.statisticsScale); |
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96 | } catch (FileNotOpenException e) {
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97 | } catch (RasterDriverException e) {
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98 | } catch (ProcessInterruptedException e) {
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99 | } |
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100 | } |
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101 | constructStats(nBands); |
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102 | } |
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103 | |||
104 | /**
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105 | * Adds a new data store to the statistics list
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106 | * @param provider
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107 | */
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108 | public void addProvider(RasterProvider provider) { |
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109 | Statistics[] statListAux = new Statistics[statList.length + 1]; |
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110 | for(int i = 0; i < statList.length; i ++) { |
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111 | statListAux[i] = statList[i]; |
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112 | } |
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113 | statListAux[statList.length] = provider.getStatistics(); |
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114 | statList = statListAux; |
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115 | } |
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116 | |||
117 | /**
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118 | * Calcula las estadisticas recorriendo todo el fichero.
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119 | */
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120 | public void calculate(double scale)throws FileNotOpenException, RasterDriverException, ProcessInterruptedException { |
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121 | if (!forceToRecalc) {
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122 | if (!isCalculated()) {
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123 | try {
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124 | provider.loadObjectFromRmf(SimpleProviderStatistics.class, this);
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125 | } catch (RmfSerializerException e) {
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126 | // Si no se puede cargar del RMF, recalcularemos las estadisticas.
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127 | } |
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128 | } |
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129 | if (isCalculated())
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130 | return;
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131 | } |
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132 | |||
133 | for(int nDataset = 0; nDataset < statList.length; nDataset ++) { |
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134 | 2579 | nbrodin | if(forceToRecalc)
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135 | statList[nDataset].forceToRecalc(); |
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136 | 2443 | nbrodin | statList[nDataset].calculate(scale); |
137 | } |
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138 | |||
139 | try {
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140 | constructStats(nBands); |
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141 | } catch (ArrayIndexOutOfBoundsException e) { |
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142 | throw new RasterDriverException("Error en el acceso al array de m?ximos y m?nimos"); |
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143 | } |
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144 | |||
145 | calculated = true;
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146 | forceToRecalc = false;
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147 | try {
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148 | provider.saveObjectToRmf(Statistics.class, this);
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149 | } catch (RmfSerializerException e) {
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150 | // No salva a rmf
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151 | } |
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152 | |||
153 | } |
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154 | |||
155 | public void resetPercent() { |
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156 | for (int i = 0; i < statList.length; i++) { |
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157 | statList[i].resetPercent(); |
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158 | } |
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159 | } |
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160 | |||
161 | public int getPercent() { |
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162 | int sum = 0; |
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163 | for (int i = 0; i < statList.length; i++) { |
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164 | sum += statList[i].getPercent(); |
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165 | } |
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166 | return sum / statList.length;
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167 | } |
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168 | |||
169 | public void forceToRecalc() { |
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170 | this.forceToRecalc = true; |
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171 | } |
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172 | |||
173 | /**
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174 | * Construye todos los datos del DatasetStadistics actual a partir de toda la
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175 | * lista de DatasetStatistics que tiene este objeto.
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176 | *
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177 | * @param len
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178 | * @throws ArrayIndexOutOfBoundsException
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179 | */
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180 | private void constructStats(int len) throws ArrayIndexOutOfBoundsException { |
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181 | max = new double[len]; |
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182 | min = new double[len]; |
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183 | secondMax = new double[len]; |
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184 | secondMin = new double[len]; |
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185 | maxByteUnsigned = new double[len]; |
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186 | minByteUnsigned = new double[len]; |
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187 | secondMaxByteUnsigned = new double[len]; |
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188 | secondMinByteUnsigned = new double[len]; |
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189 | mean = new double[len]; |
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190 | variance = new double[len]; |
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191 | nValues = new long[len]; |
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192 | |||
193 | int count = 0; |
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194 | for(int i = 0; i < statList.length; i ++) { |
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195 | if(statList[i].getMax() == null) |
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196 | return;
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197 | for(int j = 0; j < statList[i].getMax().length; j ++) { |
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198 | max[count] = statList[i].getMax()[j]; |
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199 | min[count] = statList[i].getMin()[j]; |
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200 | secondMax[count] = statList[i].getSecondMax()[j]; |
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201 | secondMin[count] = statList[i].getSecondMin()[j]; |
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202 | maxByteUnsigned[count] = statList[i].getMaxByteUnsigned()[j]; |
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203 | minByteUnsigned[count] = statList[i].getMinByteUnsigned()[j]; |
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204 | secondMaxByteUnsigned[count] = statList[i].getSecondMaxByteUnsigned()[j]; |
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205 | secondMinByteUnsigned[count] = statList[i].getSecondMinByteUnsigned()[j]; |
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206 | mean[count] = statList[i].getMean()[j]; |
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207 | variance[count] = statList[i].getVariance()[j]; |
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208 | nValues[count] = statList[i].getNumberOfValues()[j]; |
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209 | count ++; |
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210 | } |
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211 | } |
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212 | } |
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213 | |||
214 | /**
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215 | * Obtiene el flag que informa de si las estad?sticas est?n calculadas o no.
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216 | * @return true indica que est?n calculadas y false que no lo est?n
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217 | */
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218 | public boolean isCalculated() { |
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219 | return calculated;
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220 | } |
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221 | |||
222 | public int getBandCount() { |
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223 | if(bandCount <= 0) { |
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224 | for(int i = 0; i < statList.length; i ++) |
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225 | bandCount += statList[i].getBandCount(); |
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226 | } |
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227 | return bandCount;
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228 | } |
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229 | |||
230 | public void setBandCount(int bandCount) { |
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231 | this.bandCount = bandCount;
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232 | } |
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233 | |||
234 | |||
235 | /**
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236 | * Returns the number of providers.
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237 | * @return
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238 | */
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239 | public int getNumberOfProviders() { |
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240 | return statList != null ? statList.length :0; |
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241 | } |
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242 | |||
243 | public Statistics cloneStatistics() {
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244 | MultiProviderStatistics s = new MultiProviderStatistics();
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245 | s.statList = statList; |
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246 | s.nBands = nBands; |
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247 | return super.cloneStatistics(s); |
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248 | } |
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249 | |||
250 | } |