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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: GroupReadHandler.java,v $
* $Revision: 1.7 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package com.sun.star.report.pentaho.parser.rpt;
import com.sun.star.report.OfficeToken;
import java.util.ArrayList;
import com.sun.star.report.pentaho.OfficeNamespaces;
import com.sun.star.report.pentaho.model.OfficeGroup;
import com.sun.star.report.pentaho.model.OfficeGroupInstanceSection;
import com.sun.star.report.pentaho.parser.ElementReadHandler;
import java.util.List;
import org.jfree.report.JFreeReportInfo;
import org.jfree.report.expressions.FormulaExpression;
import org.jfree.report.structure.Element;
import org.jfree.report.structure.Section;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public class GroupReadHandler extends ElementReadHandler
{
private GroupSectionReadHandler groupHeader;
private GroupSectionReadHandler groupFooter;
private GroupReadHandler childGroup;
private RootTableReadHandler detailSection;
private final OfficeGroup group;
private final OfficeGroupInstanceSection groupInstanceSection;
private final List functionHandlers;
private final ReportReadHandler rh;
public GroupReadHandler(final ReportReadHandler _rh)
{
rh = _rh;
group = new OfficeGroup();
groupInstanceSection = new OfficeGroupInstanceSection();
groupInstanceSection.setNamespace(JFreeReportInfo.REPORT_NAMESPACE);
groupInstanceSection.setType("group-instance");
group.addNode(groupInstanceSection);
functionHandlers = new ArrayList();
}
/**
* Starts parsing.
*
* @param attrs the attributes.
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected void startParsing(final Attributes attrs) throws SAXException
{
super.startParsing(attrs);
final String groupExpr = attrs.getValue(OfficeNamespaces.OOREPORT_NS, "group-expression");
if ( groupExpr != null && !"".equals(groupExpr) )
{
final FormulaExpression function = new FormulaExpression();
function.setFormula(groupExpr);
groupInstanceSection.setGroupingExpression(function);
}
}
/**
* Returns the handler for a child element.
*
* @param tagName the tag name.
* @param atts the attributes.
* @return the handler or null, if the tagname is invalid.
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected XmlReadHandler getHandlerForChild(final String uri,
final String tagName,
final Attributes atts)
throws SAXException
{
if (!OfficeNamespaces.OOREPORT_NS.equals(uri))
{
return null;
}
if ("function".equals(tagName))
{
final FunctionReadHandler erh = new FunctionReadHandler();
functionHandlers.add(erh);
return erh;
}
if ("group-header".equals(tagName))
{
groupHeader = new GroupSectionReadHandler();
return groupHeader;
}
if ("group".equals(tagName))
{
childGroup = new GroupReadHandler(rh);
return childGroup;
}
if ("detail".equals(tagName))
{
detailSection = new DetailRootTableReadHandler();
rh.setDetail(detailSection);
return detailSection;
}
if ("group-footer".equals(tagName))
{
((Element)((Section)rh.getDetail().getElement()).getNode(0)).setAttribute(JFreeReportInfo.REPORT_NAMESPACE,"has-group-footer", OfficeToken.TRUE);
groupFooter = new GroupSectionReadHandler();
return groupFooter;
}
return null;
}
/**
* Done parsing.
*
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected void doneParsing() throws SAXException
{
for (int i = 0; i < functionHandlers.size(); i++)
{
final FunctionReadHandler handler =
(FunctionReadHandler) functionHandlers.get(i);
groupInstanceSection.addExpression(handler.getExpression());
}
if (groupHeader != null)
{
groupInstanceSection.addNode(groupHeader.getElement());
}
final Section groupBody = new Section();
groupBody.setNamespace(JFreeReportInfo.REPORT_NAMESPACE);
groupBody.setType("group-body");
groupInstanceSection.addNode(groupBody);
// XOR: Either the detail or the group section can be set ..
if (detailSection != null)
{
groupBody.addNode(detailSection.getElement());
}
else if (childGroup != null)
{
groupBody.addNode(childGroup.getElement());
}
if (groupFooter != null)
{
groupInstanceSection.addNode(groupFooter.getElement());
}
}
public Element getElement()
{
return group;
}
}
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