/*
* Geotoolkit - An Open Source Java GIS Toolkit
* http://www.geotoolkit.org
*
* (C) 2011, Geomatys
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotoolkit.processing.util.converter;
import org.apache.sis.measure.NumberRange;
import org.apache.sis.util.UnconvertibleObjectException;
import org.geotoolkit.feature.util.converter.SimpleConverter;
/**
* Implementation of ObjectConverter to convert a String into a NumberRange array.
*
* @author Quentin Boileau
* @module
*/
public class StringToNumberRangeConverter extends SimpleConverter<String, NumberRange[]> {
private static StringToNumberRangeConverter INSTANCE;
private StringToNumberRangeConverter(){
}
public static StringToNumberRangeConverter getInstance(){
if(INSTANCE == null){
INSTANCE = new StringToNumberRangeConverter();
}
return INSTANCE;
}
@Override
public Class<String> getSourceClass() {
return String.class;
}
@Override
public Class<NumberRange[]> getTargetClass() {
return NumberRange[].class ;
}
/**
*Convert a String into an NumberRange array.
*
* <p> The input String must be format like :
* "min1,max1:min2,max2: ..."
* </p>
*
* <p>
* Examples:
* <ul>
* <li><code>5,10:128,25:220,95</code></li>
* </ul>
* </p>
*
*/
@Override
public NumberRange[] apply(final String s) throws UnconvertibleObjectException {
if(s == null) throw new UnconvertibleObjectException("Empty NumberRange");
final String[] range = s.split(":");
final int nbRange = range.length;
final NumberRange[] ranges = new NumberRange[nbRange];
//each range
for(int i = 0 ; i<nbRange; i++){
final String[] aRange = range[i].split(",");
String min = aRange[0];
String max = aRange[1];
double dblMin = Double.valueOf(min);
double dblMax = Double.valueOf(max);
if(dblMin>dblMax){
throw new UnconvertibleObjectException("Invalid NumberRange Min/Max :"+min+"/"+max);
}
ranges[i] = new NumberRange<>(Double.class, dblMin, true, dblMax, true);
}
return ranges;
}
}