root / trunk / libraries / libRaster / src / org / gvsig / raster / dataset / serializer / StatisticsRmfSerializer.java @ 12383
History | View | Annotate | Download (8.58 KB)
| 1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
|---|---|
| 2 |
*
|
| 3 |
* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
|
| 4 |
*
|
| 5 |
* This program is free software; you can redistribute it and/or
|
| 6 |
* modify it under the terms of the GNU General Public License
|
| 7 |
* as published by the Free Software Foundation; either version 2
|
| 8 |
* of the License, or (at your option) any later version.
|
| 9 |
*
|
| 10 |
* This program is distributed in the hope that it will be useful,
|
| 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
* GNU General Public License for more details.
|
| 14 |
*
|
| 15 |
* You should have received a copy of the GNU General Public License
|
| 16 |
* along with this program; if not, write to the Free Software
|
| 17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 18 |
*/
|
| 19 |
package org.gvsig.raster.dataset.serializer; |
| 20 |
|
| 21 |
import java.io.IOException; |
| 22 |
import java.io.Reader; |
| 23 |
import java.io.StringReader; |
| 24 |
|
| 25 |
import org.gvsig.raster.dataset.io.rmf.ClassSerializer; |
| 26 |
import org.gvsig.raster.dataset.io.rmf.ParsingException; |
| 27 |
import org.gvsig.raster.dataset.properties.DatasetStatistics; |
| 28 |
import org.kxml2.io.KXmlParser; |
| 29 |
import org.xmlpull.v1.XmlPullParserException; |
| 30 |
|
| 31 |
/**
|
| 32 |
* <P>
|
| 33 |
* Clase para convertir a XML las estadisticas y obtener las estad?sticas desde XML.
|
| 34 |
* Esta clase implementa el interfaz IRmfBlock con los m?todos de escritura y
|
| 35 |
* lectura. Estos ser?n utilizados por el gestor de ficheros RMF para escribir y
|
| 36 |
* leer datos.
|
| 37 |
* </P>
|
| 38 |
* <P>
|
| 39 |
* La estructura XML de las estad?sticas es la siguiente:
|
| 40 |
* </P>
|
| 41 |
* <P>
|
| 42 |
*\<Statistics\> <BR>
|
| 43 |
* \<Max\>0\</Max\><BR>
|
| 44 |
* \<SecondMax\>0\</SecondMax\><BR>
|
| 45 |
* \<Min\>0\</Min\><BR>
|
| 46 |
* \<SecondMin\>0\</SecondMin\><BR>
|
| 47 |
* \<Maximun\>0\</Maximun\><BR>
|
| 48 |
* \<Minimun\>0\</Minimun\><BR>
|
| 49 |
* \<Mean\>0\</Mean\><BR>
|
| 50 |
* \<Variance\>0\</Variance\><BR>
|
| 51 |
* \<BandCount\>0\</BandCount\><BR>
|
| 52 |
* \<TailTrim\>1.0:23 2.0:34 .... \</TailTrim\><BR>
|
| 53 |
*\</Statistics\><BR>
|
| 54 |
*</P>
|
| 55 |
*
|
| 56 |
* @version 23/04/2007
|
| 57 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
| 58 |
*
|
| 59 |
*/
|
| 60 |
public class StatisticsRmfSerializer extends ClassSerializer { |
| 61 |
|
| 62 |
//TAGS
|
| 63 |
public static final String MAIN_TAG = "Statistics"; |
| 64 |
public static final String BAND = "Band"; |
| 65 |
public static final String MIN = "Min"; |
| 66 |
public static final String MAX = "Max"; |
| 67 |
public static final String SNDMIN = "SecondMin"; |
| 68 |
public static final String SNDMAX = "SecondMax"; |
| 69 |
public static final String MAXIMUN = "Maximun"; |
| 70 |
public static final String MINIMUN = "Minimun"; |
| 71 |
public static final String MEAN = "Mean"; |
| 72 |
public static final String VARIANCE = "Variance"; |
| 73 |
public static final String BANDCOUNT = "BandCount"; |
| 74 |
public static final String TAILTRIM = "TailTrim"; |
| 75 |
public static final String KEY = "Key"; |
| 76 |
public static final String VALUE = "Value"; |
| 77 |
|
| 78 |
private DatasetStatistics stat = null; |
| 79 |
|
| 80 |
/**
|
| 81 |
* Constructor. Asigna la tabla a serializar.
|
| 82 |
* @param ColorTable tabla a convertir en XML
|
| 83 |
*/
|
| 84 |
public StatisticsRmfSerializer(DatasetStatistics stat) {
|
| 85 |
this.stat = stat;
|
| 86 |
} |
| 87 |
|
| 88 |
/**
|
| 89 |
* Constructor.
|
| 90 |
*/
|
| 91 |
public StatisticsRmfSerializer() {
|
| 92 |
} |
| 93 |
|
| 94 |
/**
|
| 95 |
* Parsea el tag Band para extraer la lista de valores (Values) asociada a una banda.
|
| 96 |
* @param parser KXmlParser
|
| 97 |
* @return Array de long
|
| 98 |
* @throws XmlPullParserException
|
| 99 |
* @throws IOException
|
| 100 |
*/
|
| 101 |
private long[] parserStatBandValues(KXmlParser parser, int band, double[] max, double[] min, double[] sndmax, double[] sndmin, double[] mean, double[] variance) throws XmlPullParserException, IOException { |
| 102 |
boolean maxOk = false, minOk = false, sndmaxOk = false, sndminOk = false, meanOk = false, varianceOk = false; |
| 103 |
long[] valueList = null; |
| 104 |
boolean end = false; |
| 105 |
int tag = parser.next();
|
| 106 |
while (!end) {
|
| 107 |
switch(tag) {
|
| 108 |
case KXmlParser.START_TAG:
|
| 109 |
if(parser.getName() != null) { |
| 110 |
if (parser.getName().compareTo(MAX) == 0) |
| 111 |
maxOk = true;
|
| 112 |
if (parser.getName().compareTo(MIN) == 0) |
| 113 |
minOk = true;
|
| 114 |
if (parser.getName().compareTo(SNDMAX) == 0) |
| 115 |
sndmaxOk = true;
|
| 116 |
if (parser.getName().compareTo(SNDMIN) == 0) |
| 117 |
sndminOk = true;
|
| 118 |
if (parser.getName().compareTo(MEAN) == 0) |
| 119 |
meanOk = true;
|
| 120 |
if (parser.getName().compareTo(VARIANCE) == 0) |
| 121 |
varianceOk = true;
|
| 122 |
} |
| 123 |
break;
|
| 124 |
case KXmlParser.END_TAG:
|
| 125 |
if (parser.getName().compareTo(BAND) == 0) |
| 126 |
end = true;
|
| 127 |
break;
|
| 128 |
case KXmlParser.TEXT:
|
| 129 |
if(maxOk) {
|
| 130 |
max[band] = Double.parseDouble(parser.getText());
|
| 131 |
maxOk = false;
|
| 132 |
} |
| 133 |
if(minOk) {
|
| 134 |
min[band] = Double.parseDouble(parser.getText());
|
| 135 |
minOk = false;
|
| 136 |
} |
| 137 |
if(sndmaxOk) {
|
| 138 |
sndmax[band] = Double.parseDouble(parser.getText());
|
| 139 |
sndmaxOk = false;
|
| 140 |
} |
| 141 |
if(sndminOk) {
|
| 142 |
sndmin[band] = Double.parseDouble(parser.getText());
|
| 143 |
sndminOk = false;
|
| 144 |
} |
| 145 |
if(meanOk) {
|
| 146 |
mean[band] = Double.parseDouble(parser.getText());
|
| 147 |
meanOk = false;
|
| 148 |
} |
| 149 |
if(varianceOk) {
|
| 150 |
variance[band] = Double.parseDouble(parser.getText());
|
| 151 |
varianceOk = false;
|
| 152 |
} |
| 153 |
break;
|
| 154 |
} |
| 155 |
if (!end)
|
| 156 |
tag = parser.next(); |
| 157 |
} |
| 158 |
return valueList;
|
| 159 |
} |
| 160 |
|
| 161 |
/*
|
| 162 |
* (non-Javadoc)
|
| 163 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#read(java.lang.String)
|
| 164 |
*/
|
| 165 |
public void read(String xml) throws ParsingException { |
| 166 |
int bandCount = 0; |
| 167 |
double[] max = null; |
| 168 |
double[] min = null; |
| 169 |
double[] secondMax = null; |
| 170 |
double[] secondMin = null; |
| 171 |
double[] mean = null; |
| 172 |
double[] variance = null; |
| 173 |
|
| 174 |
KXmlParser parser = new KXmlParser();
|
| 175 |
Reader reader = new StringReader(xml); |
| 176 |
try {
|
| 177 |
parser.setInput(reader); |
| 178 |
} catch (XmlPullParserException e) {
|
| 179 |
throw new ParsingException(xml); |
| 180 |
} |
| 181 |
try {
|
| 182 |
int tag = parser.nextTag();
|
| 183 |
|
| 184 |
if ( parser.getEventType() != KXmlParser.END_DOCUMENT ){
|
| 185 |
parser.require(KXmlParser.START_TAG, null, MAIN_TAG);
|
| 186 |
while(tag != KXmlParser.END_DOCUMENT) {
|
| 187 |
switch(tag) {
|
| 188 |
case KXmlParser.START_TAG:
|
| 189 |
if(parser.getName() != null) { |
| 190 |
if (parser.getName().compareTo(MAIN_TAG) == 0) { |
| 191 |
bandCount = Integer.parseInt(parserString(parser, BANDCOUNT, null)); |
| 192 |
if(max == null) { |
| 193 |
max = new double[bandCount]; |
| 194 |
min = new double[bandCount]; |
| 195 |
secondMax = new double[bandCount]; |
| 196 |
secondMin = new double[bandCount]; |
| 197 |
mean = new double[bandCount]; |
| 198 |
variance = new double[bandCount]; |
| 199 |
} |
| 200 |
for (int i = 0; i < bandCount; i++) |
| 201 |
parserStatBandValues(parser, i, max, min, secondMax, secondMin, mean, variance); |
| 202 |
} |
| 203 |
} |
| 204 |
break;
|
| 205 |
case KXmlParser.END_TAG:
|
| 206 |
break;
|
| 207 |
case KXmlParser.TEXT:
|
| 208 |
break;
|
| 209 |
} |
| 210 |
tag = parser.next(); |
| 211 |
} |
| 212 |
parser.require(KXmlParser.END_DOCUMENT, null, null); |
| 213 |
} |
| 214 |
|
| 215 |
} catch (XmlPullParserException e) {
|
| 216 |
throw new ParsingException(xml); |
| 217 |
} catch (IOException e) { |
| 218 |
throw new ParsingException(xml); |
| 219 |
} |
| 220 |
if(stat == null) |
| 221 |
stat = new DatasetStatistics(null); |
| 222 |
stat.setBandCount(bandCount); |
| 223 |
stat.setMax(max); |
| 224 |
stat.setMin(min); |
| 225 |
stat.setSecondMax(secondMax); |
| 226 |
stat.setSecondMin(secondMin); |
| 227 |
stat.setMean(mean); |
| 228 |
stat.setVariance(variance); |
| 229 |
stat.setCalculated(true);
|
| 230 |
} |
| 231 |
|
| 232 |
/*
|
| 233 |
* (non-Javadoc)
|
| 234 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#write()
|
| 235 |
*/
|
| 236 |
public String write() { |
| 237 |
StringBuffer b = new StringBuffer(); |
| 238 |
|
| 239 |
b.append("<" + MAIN_TAG + ">\n"); |
| 240 |
putProperty(b, BANDCOUNT, stat.getBandCount(), 1);
|
| 241 |
for (int i = 0; i < stat.getBandCount(); i++) { |
| 242 |
b.append("\t<" + BAND + ">\n"); |
| 243 |
putProperty(b, MAX, stat.getMax()[i], 2);
|
| 244 |
putProperty(b, MIN, stat.getMin()[i], 2);
|
| 245 |
putProperty(b, SNDMAX, stat.getSecondMax()[i], 2);
|
| 246 |
putProperty(b, SNDMIN, stat.getSecondMin()[i], 2);
|
| 247 |
putProperty(b, MEAN, stat.getMean()[i], 2);
|
| 248 |
putProperty(b, VARIANCE, stat.getVariance()[i], 2);
|
| 249 |
b.append("\t</" + BAND + ">\n"); |
| 250 |
} |
| 251 |
for (int i = 0; i < stat.getTailTrimCount(); i++) { |
| 252 |
b.append("\t<" + TAILTRIM + ">\n"); |
| 253 |
putProperty(b, KEY, ((Double)stat.getTailTrimValue(i)[0]).doubleValue(), 2); |
| 254 |
putProperty(b, VALUE, ((Double)stat.getTailTrimValue(i)[1]).doubleValue(), 2); |
| 255 |
b.append("\t</" + TAILTRIM + ">\n"); |
| 256 |
} |
| 257 |
b.append("</" + MAIN_TAG + ">"); |
| 258 |
return b.toString();
|
| 259 |
} |
| 260 |
|
| 261 |
/*
|
| 262 |
* (non-Javadoc)
|
| 263 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#getResult()
|
| 264 |
*/
|
| 265 |
public Object getResult() { |
| 266 |
return stat;
|
| 267 |
} |
| 268 |
|
| 269 |
/*
|
| 270 |
* (non-Javadoc)
|
| 271 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#getMainTag()
|
| 272 |
*/
|
| 273 |
public String getMainTag() { |
| 274 |
return MAIN_TAG;
|
| 275 |
} |
| 276 |
} |