net.sf.dynamicreports.design.transformation.expressions.PageXofYNumberExpression Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of dynamicreports-core Show documentation
Show all versions of dynamicreports-core Show documentation
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.design.transformation.expressions;
import java.text.MessageFormat;
import java.util.List;
import net.sf.dynamicreports.report.builder.expression.AbstractComplexExpression;
import net.sf.dynamicreports.report.constant.Constants;
import net.sf.dynamicreports.report.definition.ReportParameters;
import net.sf.dynamicreports.report.definition.expression.DRIExpression;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.Validate;
/**
* @author Ricardo Mariaca ([email protected])
*/
public class PageXofYNumberExpression extends AbstractComplexExpression {
private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;
private int index;
public PageXofYNumberExpression(DRIExpression pageNumberFormatExpression, int index) {
addExpression(pageNumberFormatExpression);
this.index = index;
}
@Override
public String evaluate(List values, ReportParameters reportParameters) {
String pattern = (String) values.get(0);
Validate.isTrue(StringUtils.contains(pattern, "{0}"), "Wrong format pattern \"" + pattern + "\", missing argument {0}");
Validate.isTrue(StringUtils.contains(pattern, "{1}"), "Wrong format pattern \"" + pattern + "\", missing argument {1}");
Validate.isTrue(pattern.indexOf("{0}") < pattern.indexOf("{1}"), "Wrong format pattern \"" + pattern + "\", argument {0} must be before {1}");
int index1 = pattern.indexOf("{0}");
if (index == 0) {
pattern = pattern.substring(0, index1 + 3);
}
else {
pattern = pattern.substring(index1 + 3);
}
MessageFormat format = new MessageFormat(pattern, reportParameters.getLocale());
String result = format.format(new Object[]{reportParameters.getPageNumber(), reportParameters.getPageNumber()});
return result;
}
}