/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.parser.ext.readhandlers;
import org.pentaho.reporting.engine.classic.core.AbstractReportDefinition;
import org.pentaho.reporting.engine.classic.core.Group;
import org.pentaho.reporting.engine.classic.core.ItemBand;
import org.pentaho.reporting.engine.classic.core.NoDataBand;
import org.pentaho.reporting.engine.classic.core.RelationalGroup;
import org.pentaho.reporting.engine.classic.core.ReportDefinition;
import org.pentaho.reporting.engine.classic.core.filter.types.bands.ItemBandType;
import org.pentaho.reporting.engine.classic.core.filter.types.bands.NoDataBandType;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.GroupList;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.PropertyAttributes;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.ReportParserUtil;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.common.AbstractPropertyXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.ParseException;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.SAXException;
public class ReportDescriptionReadHandler extends AbstractPropertyXmlReadHandler
{
private GroupList groupList;
public ReportDescriptionReadHandler()
{
this.groupList = new GroupList();
}
protected void startParsing(final PropertyAttributes attrs) throws SAXException
{
final ReportDefinition report = (ReportDefinition)
getRootHandler().getHelperObject(ReportParserUtil.HELPER_OBJ_REPORT_NAME);
final int groupCount = report.getGroupCount();
for (int i = 0; i < groupCount; i++)
{
final Group g = report.getGroup(i);
if (g instanceof RelationalGroup)
{
groupList.add((RelationalGroup) g);
}
else
{
throw new ParseException("The existing report contains non-default groups. " +
"This parser cannot handle such a construct.");
}
}
}
/**
* 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 PropertyAttributes atts)
throws SAXException
{
if (isSameNamespace(uri) == false)
{
return null;
}
final ReportDefinition report = (ReportDefinition)
getRootHandler().getHelperObject(ReportParserUtil.HELPER_OBJ_REPORT_NAME);
if ("report-header".equals(tagName))
{
return new RootBandReadHandler(report.getReportHeader());
}
else if ("report-footer".equals(tagName))
{
return new RootBandReadHandler(report.getReportFooter());
}
else if ("page-header".equals(tagName))
{
return new BandReadHandler(report.getPageHeader());
}
else if ("page-footer".equals(tagName))
{
return new BandReadHandler(report.getPageFooter());
}
else if ("watermark".equals(tagName))
{
return new BandReadHandler(report.getWatermark());
}
else if ("no-data-band".equals(tagName))
{
final NoDataBand noDataBand = (NoDataBand) report.getChildElementByType(NoDataBandType.INSTANCE);
if (noDataBand == null)
{
throw new ParseException("Not a relational report");
}
return new RootBandReadHandler(noDataBand);
}
else if ("groups".equals(tagName))
{
return new GroupsReadHandler(groupList);
}
else if ("itemband".equals(tagName))
{
final ItemBand itemBand = (ItemBand) report.getChildElementByType(ItemBandType.INSTANCE);
if (itemBand == null)
{
throw new ParseException("Not a relational report");
}
return new RootBandReadHandler(itemBand);
}
return null;
}
/**
* Done parsing.
*
* @throws SAXException if there is a parsing error.
*/
protected void doneParsing() throws SAXException
{
final AbstractReportDefinition report = (AbstractReportDefinition)
getRootHandler().getHelperObject(ReportParserUtil.HELPER_OBJ_REPORT_NAME);
try
{
final GroupList clone = (GroupList) groupList.clone();
clone.installIntoReport(report);
}
catch (CloneNotSupportedException e)
{
throw new ParseException("Failed to add group-list to report", getLocator());
}
}
/**
* Returns the object for this element or null, if this element does not create an object.
*
* @return the object.
*/
public Object getObject()
{
return null;
}
}