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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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.
*
* JasperReports 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 JasperReports. If not, see .
*/
package net.sf.jasperreports.engine.util;
import java.text.DecimalFormat;
import java.text.FieldPosition;
import java.text.NumberFormat;
import java.text.ParsePosition;
import net.sf.jasperreports.engine.JRConstants;
/**
* @author Teodor Danciu ([email protected])
*/
public class DurationNumberFormat extends NumberFormat
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
private final DecimalFormat twoDecimalsFormat = new DecimalFormat("00");
@Override
public StringBuffer format(
double number,
StringBuffer toAppendTo,
FieldPosition pos
)
{
return format((long)number, toAppendTo, pos);
}
@Override
public StringBuffer format(
long number,
StringBuffer toAppendTo,
FieldPosition pos
)
{
long seconds = number;
long hours = seconds / 3600;
seconds -= hours * 3600;
long minutes = seconds / 60;
seconds -= minutes * 60;
toAppendTo.append(twoDecimalsFormat.format(hours));
toAppendTo.append(":");
toAppendTo.append(twoDecimalsFormat.format(minutes));
toAppendTo.append(":");
toAppendTo.append(twoDecimalsFormat.format(seconds));
return toAppendTo;
}
@Override
public Number parse(String source, ParsePosition parsePosition)
{
if (source != null && source.trim().length() > 0)
{
String[] tokens = source.split(":");
if (tokens.length > 3)
{
throw new NumberFormatException();
}
else
{
long seconds = 3600 * Long.parseLong(tokens[0]);
if (tokens.length > 1)
{
seconds += 60 * Long.parseLong(tokens[1]);
}
if (tokens.length > 2)
{
seconds += Long.parseLong(tokens[2]);
}
parsePosition.setIndex(source.length());
return seconds;
}
}
return null;
}
}