org.sonar.api.utils.ParsingUtils Maven / Gradle / Ivy
/*
* Sonar, open source software quality management tool.
* Copyright (C) 2009 SonarSource SA
* mailto:contact AT sonarsource DOT com
*
* Sonar 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; either
* version 3 of the License, or (at your option) any later version.
*
* Sonar 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sonar; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.api.utils;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.Locale;
/**
* @since 1.10
*/
public final class ParsingUtils {
private ParsingUtils() {
}
public static double parseNumber(String number, Locale locale) throws ParseException {
if ("".equals(number)) {
return Double.NaN;
}
return NumberFormat.getNumberInstance(locale).parse(number).doubleValue();
}
public static double parseNumber(String number) throws ParseException {
return parseNumber(number, Locale.getDefault());
}
public static double scaleValue(double value) {
return scaleValue(value, 2);
}
public static double scaleValue(double value, int decimals) {
BigDecimal bd = BigDecimal.valueOf(value);
return bd.setScale(decimals, RoundingMode.HALF_UP).doubleValue();
}
}