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DynamicReports is an open source Java reporting library based on JasperReports. It allows to create dynamic report designs and it doesn't need a visual report designer.
You can very quickly create reports and produce documents that can be displayed, printed or exported into many popular formats such as PDF, Excel, Word and others.
/**
* DynamicReports - Free Java reporting library for creating reports dynamically
*
* Copyright (C) 2010 - 2016 Ricardo Mariaca
* http://www.dynamicreports.org
*
* This file is part of DynamicReports.
*
* DynamicReports 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.
*
* DynamicReports 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 DynamicReports. If not, see .
*/
package net.sf.dynamicreports.report.builder.datatype;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.ParseException;
import java.util.Locale;
import net.sf.dynamicreports.report.ReportUtils;
import net.sf.dynamicreports.report.base.datatype.AbstractDataType;
import net.sf.dynamicreports.report.constant.Constants;
import net.sf.dynamicreports.report.exception.DRException;
/**
* @author Ricardo Mariaca ([email protected])
*/
public abstract class NumberType extends AbstractDataType {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
@Override
public String valueToString(Number value, Locale locale) {
if (value != null) {
return new DecimalFormat(getPattern(), new DecimalFormatSymbols(locale)).format(value);
}
return null;
}
@Override
public T stringToValue(String value, Locale locale) throws DRException {
if (value != null) {
try {
return numberToValue(new DecimalFormat(getPattern(), new DecimalFormatSymbols(locale)).parse(value));
} catch (ParseException e) {
throw new DRException("Unable to convert string value to date", e);
}
}
return null;
}
protected abstract T numberToValue(Number number);
@SuppressWarnings("unchecked")
@Override
public Class getValueClass() {
return (Class) ReportUtils.getGenericClass(this, 0);
}
}