root / trunk / libraries / libRaster / src / org / gvsig / raster / datastruct / serializer / ColorTableRmfSerializer.java @ 12504
History | View | Annotate | Download (6.88 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.datastruct.serializer; |
| 20 |
|
| 21 |
import java.io.IOException; |
| 22 |
import java.io.Reader; |
| 23 |
import java.io.StringReader; |
| 24 |
|
| 25 |
import org.gvsig.raster.dataset.IBuffer; |
| 26 |
import org.gvsig.raster.dataset.io.rmf.ClassSerializer; |
| 27 |
import org.gvsig.raster.dataset.io.rmf.ParsingException; |
| 28 |
import org.gvsig.raster.datastruct.ColorTable; |
| 29 |
import org.kxml2.io.KXmlParser; |
| 30 |
import org.xmlpull.v1.XmlPullParserException; |
| 31 |
|
| 32 |
/**
|
| 33 |
* <P>
|
| 34 |
* Clase para convertir a XML una tabla de color y obtener la tabla desde XML.
|
| 35 |
* Esta clase implementa el interfaz IRmfBlock con los m?todos de escritura y
|
| 36 |
* lectura. Estos ser?n utilizados por el gestor de ficheros RMF para escribir y
|
| 37 |
* leer datos.
|
| 38 |
* </P>
|
| 39 |
* <P>
|
| 40 |
* La estructura XML de una tabla de color es la siguiente:
|
| 41 |
* </P>
|
| 42 |
* <P>
|
| 43 |
*\<ColorTable\> <BR>
|
| 44 |
* \<Type\>0\</Type\><BR>
|
| 45 |
* \<Range\>5000:6000 3500:5000 .... 0:-2000\</Range\><BR>
|
| 46 |
* \<RGB\>-16777216 -16777216 .... -13158401 -16763905\</RGB\><BR>
|
| 47 |
* \<Names\>clase1 clase2 .... claseN \</Names\><BR>
|
| 48 |
*\</ColorTable\><BR>
|
| 49 |
*</P>
|
| 50 |
*
|
| 51 |
* @version 23/04/2007
|
| 52 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
| 53 |
*
|
| 54 |
*/
|
| 55 |
public class ColorTableRmfSerializer extends ClassSerializer { |
| 56 |
|
| 57 |
//TAGS
|
| 58 |
public static final String MAIN_TAG = "ColorTable"; |
| 59 |
public static final String TYPE = "Type"; |
| 60 |
public static final String RGB = "RGB"; |
| 61 |
public static final String NAMES = "Names"; |
| 62 |
public static final String RANGE = "Range"; |
| 63 |
public static final String NAME = "PaletteName"; |
| 64 |
|
| 65 |
private ColorTable colorTable = null; |
| 66 |
|
| 67 |
/**
|
| 68 |
* Constructor. Asigna la tabla a serializar.
|
| 69 |
* @param ColorTable tabla a convertir en XML
|
| 70 |
*/
|
| 71 |
public ColorTableRmfSerializer(ColorTable colorTable) {
|
| 72 |
this.colorTable = colorTable;
|
| 73 |
} |
| 74 |
|
| 75 |
/**
|
| 76 |
* Constructor.
|
| 77 |
*/
|
| 78 |
public ColorTableRmfSerializer() {
|
| 79 |
} |
| 80 |
|
| 81 |
/*
|
| 82 |
* (non-Javadoc)
|
| 83 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#read(java.lang.String)
|
| 84 |
*/
|
| 85 |
public void read(String xml) throws ParsingException { |
| 86 |
int type = 0; |
| 87 |
String paletteName = ""; |
| 88 |
int[] rgb = null; |
| 89 |
double[] range = null; |
| 90 |
String[] names = null; |
| 91 |
|
| 92 |
KXmlParser parser = new KXmlParser();
|
| 93 |
Reader reader = new StringReader(xml); |
| 94 |
try {
|
| 95 |
parser.setInput(reader); |
| 96 |
} catch (XmlPullParserException e) {
|
| 97 |
throw new ParsingException(xml); |
| 98 |
} |
| 99 |
try {
|
| 100 |
int tag = parser.nextTag();
|
| 101 |
|
| 102 |
if ( parser.getEventType() != KXmlParser.END_DOCUMENT ){
|
| 103 |
parser.require(KXmlParser.START_TAG, null, MAIN_TAG);
|
| 104 |
while(tag != KXmlParser.END_DOCUMENT) {
|
| 105 |
switch(tag) {
|
| 106 |
case KXmlParser.START_TAG:
|
| 107 |
if(parser.getName() != null) { |
| 108 |
if (parser.getName().compareTo(MAIN_TAG) == 0) { |
| 109 |
type = Integer.parseInt(parserString(parser, TYPE, null)); |
| 110 |
paletteName = parserString(parser, NAME, null);
|
| 111 |
String rgbList = parserString(parser, RGB, null); |
| 112 |
if(rgbList != null && rgb == null) { |
| 113 |
rgb = convertStringInIntArray(rgbList); |
| 114 |
rgbList = null;
|
| 115 |
} |
| 116 |
String nameList = parserString(parser, NAMES, null); |
| 117 |
if(nameList != null && names == null) { |
| 118 |
names = nameList.split(" ");
|
| 119 |
nameList = null;
|
| 120 |
} |
| 121 |
String rangeList = parserString(parser, RANGE, null); |
| 122 |
if(rangeList != null && range == null) { |
| 123 |
range = convertStringInDoubleArray(rangeList); |
| 124 |
rangeList = null;
|
| 125 |
} |
| 126 |
} |
| 127 |
} |
| 128 |
break;
|
| 129 |
case KXmlParser.END_TAG:
|
| 130 |
break;
|
| 131 |
case KXmlParser.TEXT:
|
| 132 |
break;
|
| 133 |
} |
| 134 |
tag = parser.next(); |
| 135 |
} |
| 136 |
parser.require(KXmlParser.END_DOCUMENT, null, null); |
| 137 |
} |
| 138 |
|
| 139 |
} catch (XmlPullParserException e) {
|
| 140 |
throw new ParsingException(xml); |
| 141 |
} catch (IOException e) { |
| 142 |
throw new ParsingException(xml); |
| 143 |
} |
| 144 |
|
| 145 |
colorTable = new ColorTable(paletteName);
|
| 146 |
colorTable.setNameClass(names); |
| 147 |
colorTable.setColorTable(rgb); |
| 148 |
/*
|
| 149 |
colorTable.setType(type);
|
| 150 |
if(colorTable.getType() == IBuffer.TYPE_FLOAT || colorTable.getType() == IBuffer.TYPE_DOUBLE)
|
| 151 |
colorTable.setDoubleRange(range);
|
| 152 |
else if(colorTable.getType() == IBuffer.TYPE_BYTE || colorTable.getType() == IBuffer.TYPE_SHORT || colorTable.getType() == IBuffer.TYPE_INT) {
|
| 153 |
int[] r = new int[range.length];
|
| 154 |
for (int i = 0; i < range.length; i++)
|
| 155 |
r[i] = (int)range[i];
|
| 156 |
colorTable.setIntRange(r);
|
| 157 |
}
|
| 158 |
*/
|
| 159 |
} |
| 160 |
|
| 161 |
/*
|
| 162 |
* (non-Javadoc)
|
| 163 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#write()
|
| 164 |
*/
|
| 165 |
public String write() { |
| 166 |
|
| 167 |
StringBuffer b = new StringBuffer(); |
| 168 |
|
| 169 |
b.append("<" + MAIN_TAG + ">\n"); |
| 170 |
|
| 171 |
/*
|
| 172 |
putProperty(b, TYPE, colorTable.getType(), 1);
|
| 173 |
putProperty(b, NAME, colorTable.getName(), 1);
|
| 174 |
|
| 175 |
b.append("\t<" + RGB + ">");
|
| 176 |
if(colorTable.getType() == IBuffer.TYPE_BYTE || colorTable.getType() == IBuffer.TYPE_SHORT || colorTable.getType() == IBuffer.TYPE_INT) {
|
| 177 |
for (int rgb = 0; rgb < colorTable.getColorTable().length; rgb++)
|
| 178 |
b.append(colorTable.getColorTable()[rgb] + " ");
|
| 179 |
}
|
| 180 |
if(colorTable.getType() == IBuffer.TYPE_FLOAT || colorTable.getType() == IBuffer.TYPE_DOUBLE) {
|
| 181 |
for (int rgb = 0; rgb < colorTable.getColorTable().length; rgb++)
|
| 182 |
b.append(colorTable.getColorTable()[rgb] + " ");
|
| 183 |
}
|
| 184 |
b.append("</" + RGB + ">\n");
|
| 185 |
|
| 186 |
b.append("\t<" + NAMES + ">");
|
| 187 |
for (int rgb = 0; rgb < colorTable.getNameClass().length; rgb++)
|
| 188 |
b.append(colorTable.getNameClass()[rgb] + " ");
|
| 189 |
b.append("</" + NAMES + ">\n");
|
| 190 |
|
| 191 |
b.append("\t<" + RANGE + ">");
|
| 192 |
if(colorTable.getType() == IBuffer.TYPE_BYTE || colorTable.getType() == IBuffer.TYPE_SHORT || colorTable.getType() == IBuffer.TYPE_INT) {
|
| 193 |
for (int rgb = 0; rgb < colorTable.getIntRange().length; rgb++)
|
| 194 |
b.append(colorTable.getIntRange()[rgb] + " ");
|
| 195 |
}
|
| 196 |
if(colorTable.getType() == IBuffer.TYPE_FLOAT || colorTable.getType() == IBuffer.TYPE_DOUBLE) {
|
| 197 |
for (int rgb = 0; rgb < colorTable.getDoubleRange().length; rgb++)
|
| 198 |
b.append(colorTable.getDoubleRange()[rgb] + " ");
|
| 199 |
}
|
| 200 |
*/
|
| 201 |
b.append("</" + RANGE + ">\n"); |
| 202 |
|
| 203 |
b.append("</" + MAIN_TAG + ">"); |
| 204 |
|
| 205 |
return b.toString();
|
| 206 |
} |
| 207 |
|
| 208 |
/*
|
| 209 |
* (non-Javadoc)
|
| 210 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#getResult()
|
| 211 |
*/
|
| 212 |
public Object getResult() { |
| 213 |
return colorTable;
|
| 214 |
} |
| 215 |
|
| 216 |
/*
|
| 217 |
* (non-Javadoc)
|
| 218 |
* @see org.gvsig.raster.dataset.io.rmf.IRmfBlock#getMainTag()
|
| 219 |
*/
|
| 220 |
public String getMainTag() { |
| 221 |
return MAIN_TAG;
|
| 222 |
} |
| 223 |
} |