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net.sf.jasperreports.engine.convert.ReportConverter Maven / Gradle / Ivy
/*
* ============================================================================
* GNU Lesser General Public License
* ============================================================================
*
* JasperReports - Free Java report-generating library.
* Copyright (C) 2001-2009 JasperSoft Corporation http://www.jaspersoft.com
*
* 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; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* JasperSoft Corporation
* 539 Bryant Street, Suite 100
* San Francisco, CA 94107
* http://www.jaspersoft.com
*/
/*
* Contributors:
* Ryan Johnson - [email protected]
* Carlton Moore - [email protected]
*/
package net.sf.jasperreports.engine.convert;
import java.awt.Color;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import net.sf.jasperreports.engine.JRBand;
import net.sf.jasperreports.engine.JRDefaultStyleProvider;
import net.sf.jasperreports.engine.JRElement;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRGroup;
import net.sf.jasperreports.engine.JRPen;
import net.sf.jasperreports.engine.JRPrintElement;
import net.sf.jasperreports.engine.JRPrintFrame;
import net.sf.jasperreports.engine.JRPrintPage;
import net.sf.jasperreports.engine.JRReport;
import net.sf.jasperreports.engine.JRReportTemplate;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JRSection;
import net.sf.jasperreports.engine.JRStyle;
import net.sf.jasperreports.engine.JRStyleContainer;
import net.sf.jasperreports.engine.JRStyleSetter;
import net.sf.jasperreports.engine.JRTemplate;
import net.sf.jasperreports.engine.JRTemplateReference;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.base.JRBaseObjectFactory;
import net.sf.jasperreports.engine.base.JRBasePrintFrame;
import net.sf.jasperreports.engine.base.JRBasePrintPage;
import net.sf.jasperreports.engine.base.JRBaseStyle;
import net.sf.jasperreports.engine.design.JasperDesign;
import net.sf.jasperreports.engine.util.JRExpressionUtil;
import net.sf.jasperreports.engine.util.JRProperties;
import net.sf.jasperreports.engine.xml.JRXmlTemplateLoader;
import org.apache.commons.collections.SequencedHashMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* @author Sanda Zaharia ([email protected] )
* @version $Id: ReportConverter.java 2777 2009-05-12 13:18:02Z teodord $
*/
public class ReportConverter
{
private static final Log log = LogFactory.getLog(ReportConverter.class);
public static final Color GRID_LINE_COLOR = new Color(170, 170, 255);
private final JRReport report;
private JasperPrint jasperPrint;
private JRPrintPage page;
int pageWidth;
private int offsetY;
private int upColumns;
private int downColumns;
/**
* List containing page elements in a given order
*/
private List pageElements = new ArrayList();
private StyleFactory styleFactory;
protected Map stylesMap;
protected final boolean cacheStyles;
/**
*
*/
public ReportConverter(JRReport report, boolean ignoreContent, boolean cacheStyles)
{
this.report = report;
this.cacheStyles = cacheStyles;
if (report instanceof JasperDesign)
{
((JasperDesign)report).preprocess();
}
convert(ignoreContent);
}
/**
*
*/
protected void convert(boolean ignoreContent)
{
jasperPrint = new JasperPrint();
jasperPrint.setDefaultFont(report.getDefaultFont());
jasperPrint.setFormatFactoryClass(report.getFormatFactoryClass());
//FIXME locale and timezone settings jasperprint object
//jasperPrint.setLocaleCode(JRDataUtils.getLocaleCode(Locale.getDefault()));
//jasperPrint.setTimeZoneId(JRDataUtils.getTimeZoneId(TimeZone.getDefault()));
//FIXMEFONT the locale is important for font
//jasperPrint.setLocaleCode(report.getProperty(JRProperties.PROPERTY_PREFIX + "locale"));
//JRStyledTextAttributeSelector.setLocale(locale);
jasperPrint.setName(report.getName());
jasperPrint.setOrientation(report.getOrientation());
jasperPrint.setPageWidth(report.getPageWidth());
jasperPrint.setPageHeight(report.getPageHeight());
JRProperties.transferProperties(report, jasperPrint, JasperPrint.PROPERTIES_PRINT_TRANSFER_PREFIX);
setStyles(report);
if (!ignoreContent)
{
pageWidth = report.getPageWidth();
page = new JRBasePrintPage();
offsetY = report.getTopMargin();
addBand(report.getBackground());
addBand(report.getTitle());
addBand(report.getPageHeader());
upColumns = offsetY;
addBand(report.getColumnHeader());
JRGroup[] groups = report.getGroups();
if (groups != null)
{
for (int i = 0; i < groups.length ; i++)
{
addSection(groups[i].getGroupHeaderSection());
}
}
addSection(report.getDetailSection());
if (groups != null)
{
for (int i = 0; i < groups.length ; i++)
{
addSection(groups[i].getGroupFooterSection());
}
}
addBand(report.getColumnFooter());
downColumns = offsetY;
addBand(report.getPageFooter());
addBand(report.getLastPageFooter());
addBand(report.getSummary());
addBand(report.getNoData());
jasperPrint.setPageHeight(offsetY + report.getBottomMargin());
// column dotted delimitation
int colX = report.getLeftMargin();
for(int i = 0; i < report.getColumnCount(); i++)
{
addColumnSeparator(colX);
colX += report.getColumnWidth();
addColumnSeparator(colX);
colX += report.getColumnSpacing();
}
// page dotted contour line
addHorizontalGridLine(0, report.getTopMargin(), pageWidth);
addHorizontalGridLine(0, offsetY, pageWidth);
addVerticalGridLine(report.getLeftMargin(), 0, jasperPrint.getPageHeight());
addVerticalGridLine(pageWidth - report.getRightMargin(), 0, jasperPrint.getPageHeight());
page.setElements(pageElements);
jasperPrint.addPage(page);
}
}
protected void setStyles(JRReport report)
{
styleFactory = new StyleFactory();
stylesMap = new SequencedHashMap();
loadReportStyles(report);
try
{
for (Iterator it = stylesMap.values().iterator(); it.hasNext();)
{
JRStyle style = (JRStyle) it.next();
jasperPrint.addStyle(style);
}
}
catch (JRException e)
{
throw new JRRuntimeException(e);
}
JRStyle reportDefault = report.getDefaultStyle();
JRStyle printDefault = null;
if (reportDefault == null)
{
//search for the last default style
for (Iterator it = stylesMap.values().iterator(); it.hasNext();)
{
JRStyle style = (JRStyle) it.next();
if (style.isDefault())
{
printDefault = style;
}
}
}
else
{
printDefault = reportDefault;
}
if (printDefault != null)
{
jasperPrint.setDefaultStyle(printDefault);
}
}
protected void loadReportStyles(JRReport report)
{
JRReportTemplate[] templates = report.getTemplates();
if (templates != null)
{
Set loadedLocations = new HashSet();
for (int i = 0; i < templates.length; i++)
{
loadReportTemplateStyles(templates[i], loadedLocations);
}
}
collectStyles(report.getStyles());
}
protected void loadReportTemplateStyles(JRReportTemplate template, Set loadedLocations)
{
JRExpression sourceExpression = template.getSourceExpression();
if (sourceExpression != null)
{
String location = JRExpressionUtil.getSimpleExpressionText(sourceExpression);
if (location == null)
{
log.warn("Template source expression " + sourceExpression.getText()
+ "cannot be evaluated; some styles might remain unresolved.");
}
else
{
HashSet parentLocations = new HashSet();
loadTemplateStyles(location, loadedLocations, parentLocations);
}
}
}
protected void loadTemplateStyles(String location, Set loadedLocations, Set parentLocations)
{
if (!parentLocations.add(location))
{
throw new JRRuntimeException("Circular dependency found for template at location "
+ location);
}
if (!loadedLocations.add(location))
{
//already loaded
return;
}
JRTemplate template;
try
{
template = JRXmlTemplateLoader.load(location);
}
catch (Exception e)
{
log.warn("Could not load template from location " + location
+ "; some styles might remain unresolved.");
return;
}
JRTemplateReference[] includedTemplates = template.getIncludedTemplates();
if (includedTemplates != null)
{
for (int i = 0; i < includedTemplates.length; i++)
{
JRTemplateReference reference = includedTemplates[i];
loadTemplateStyles(reference.getLocation(), loadedLocations, parentLocations);
}
}
collectStyles(template.getStyles());
}
protected void collectStyles(JRStyle[] styles)
{
if (styles != null)
{
for (int i = 0; i < styles.length; i++)
{
JRStyle style = styles[i];
JRStyle copy = styleFactory.getStyle(style);
stylesMap.put(copy.getName(), copy);
}
}
}
/**
*
*/
private void addSection(JRSection section)
{
if (section != null)
{
JRBand[] bands = section.getBands();
if (bands != null && bands.length > 0)
{
for(int i = 0; i< bands.length; i++)
{
addBand(bands[i]);
}
}
}
}
/**
*
*/
private void addBand(JRBand band)
{
if (band != null)
{
JRBasePrintFrame frame = new JRBasePrintFrame(null);
frame.setX(report.getLeftMargin());
frame.setY(offsetY);
frame.setWidth(report.getPageWidth() - report.getLeftMargin() - report.getRightMargin());
frame.setHeight(band.getHeight());
band.visit(new ConvertVisitor(this, frame));
pageElements.add(frame);
offsetY += band.getHeight();
addBandSeparator(offsetY);
}
}
/**
*
*/
private void addBandSeparator(int bandY)
{
addHorizontalGridLine(0, bandY, pageWidth);
}
/**
*
*/
private void addColumnSeparator(int colX)
{
if (downColumns > upColumns)
{
addVerticalGridLine(colX, upColumns, downColumns - upColumns);
}
}
/**
*
*/
private void addHorizontalGridLine(int x, int y, int width)
{
JRPrintFrame printFrame = new JRBasePrintFrame(getDefaultStyleProvider());
printFrame.setX(x);
printFrame.setY(y);
printFrame.setWidth(width);
printFrame.setHeight(1);
printFrame.getLineBox().getPen().setLineWidth(0);
printFrame.getLineBox().getPen().setLineStyle(JRPen.LINE_STYLE_SOLID);
printFrame.getLineBox().getTopPen().setLineWidth(0.1f);
printFrame.getLineBox().getTopPen().setLineStyle(JRPen.LINE_STYLE_DASHED);
printFrame.getLineBox().getTopPen().setLineColor(GRID_LINE_COLOR);
pageElements.add(0, printFrame);
}
/**
*
*/
private void addVerticalGridLine(int x, int y, int height)
{
JRPrintFrame printFrame = new JRBasePrintFrame(getDefaultStyleProvider());
printFrame.setX(x);
printFrame.setY(y);
printFrame.setWidth(1);
printFrame.setHeight(height);
printFrame.getLineBox().getPen().setLineWidth(0);
printFrame.getLineBox().getPen().setLineStyle(JRPen.LINE_STYLE_SOLID);
printFrame.getLineBox().getLeftPen().setLineWidth(0.1f);
printFrame.getLineBox().getLeftPen().setLineStyle(JRPen.LINE_STYLE_DASHED);
printFrame.getLineBox().getLeftPen().setLineColor(GRID_LINE_COLOR);
pageElements.add(0, printFrame);
}
/**
*
*/
protected JRStyle resolveStyle(JRStyleContainer originalContainer)
{
JRStyle originalStyle = originalContainer.getStyle();
String nameReference = originalContainer.getStyleNameReference();
JRStyle style;
if (originalStyle != null)
{
style = styleFactory.getStyle(originalStyle);
}
else if (nameReference != null)
{
style = (JRStyle) stylesMap.get(nameReference);
if (style == null)
{
log.warn("Style " + nameReference + " could not be resolved.");
}
}
else
{
style = null;
}
return style;
}
/**
*
*/
public JRReport getReport()
{
return report;
}
/**
*
*/
public JasperPrint getJasperPrint()
{
return jasperPrint;
}
/**
*
*/
public JRDefaultStyleProvider getDefaultStyleProvider()
{
return jasperPrint.getDefaultStyleProvider();
}
/**
*
*/
protected class StyleFactory extends JRBaseObjectFactory
{
public StyleFactory()
{
super(ReportConverter.this.getDefaultStyleProvider());
}
public JRExpression getExpression(JRExpression expression, boolean assignNotUsedId)
{
return expression;
}
public JRStyle getStyle(JRStyle style)
{
JRBaseStyle baseStyle = null;
if (style != null)
{
baseStyle = (JRBaseStyle)get(style);
if (
baseStyle == null
|| !ReportConverter.this.cacheStyles
)
{
baseStyle = new JRBaseStyle(style, this);
put(style, baseStyle);
}
}
return baseStyle;
}
protected void handleStyleNameReference(JRStyleSetter setter, String nameReference)
{
JRStyle style = (JRStyle) stylesMap.get(nameReference);
if (style == null)
{
log.warn("Style " + nameReference + " could not be resolved.");
}
else
{
setter.setStyle(style);
}
}
}
public void copyBaseAttributes(JRElement source, JRPrintElement converted)
{
converted.setX(source.getX());
converted.setY(source.getY());
converted.setWidth(source.getWidth());
converted.setHeight(source.getHeight());
converted.setBackcolor(source.getOwnBackcolor());
converted.setForecolor(source.getOwnForecolor());
//printElement.setKey(element.getKey());
converted.setMode(source.getOwnMode());
converted.setStyle(resolveStyle(source));
}
}
