/*!
* 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) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.wizard.parser;
import org.pentaho.reporting.engine.classic.core.function.Expression;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.ReportParserUtil;
import org.pentaho.reporting.engine.classic.wizard.model.DefaultGroupDefinition;
import org.pentaho.reporting.engine.classic.wizard.model.GroupDefinition;
import org.pentaho.reporting.engine.classic.wizard.model.GroupType;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.ParseException;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public class GroupDefinitionReadHandler extends AbstractXmlReadHandler
{
private GroupDefinition groupDefinition;
public GroupDefinitionReadHandler()
{
groupDefinition = new DefaultGroupDefinition();
}
protected void startParsing(final Attributes attrs) throws SAXException
{
final String thAlightAttr = attrs.getValue(getUri(), "totals-align");
groupDefinition.setTotalsHorizontalAlignment
(ReportParserUtil.parseHorizontalElementAlignment(thAlightAttr, getLocator()));
groupDefinition.setNullString(attrs.getValue(getUri(), "null-string"));
groupDefinition.setDisplayName(attrs.getValue(getUri(), "display-name"));
groupDefinition.setField(attrs.getValue(getUri(), "field"));
groupDefinition.setDataFormat(attrs.getValue(getUri(), "data-format"));
final String aggFunctionName = attrs.getValue(getUri(), "aggregation-function");
if (aggFunctionName != null)
{
final ClassLoader classLoader = ObjectUtilities.getClassLoader(DetailsFieldDefinitionReadHandler.class);
try
{
final Class c = Class.forName(aggFunctionName, false, classLoader);
if (Expression.class.isAssignableFrom(c) == false)
{
throw new ParseException("Failed to parse attribute 'aggregation-function': invalid class name");
}
groupDefinition.setAggregationFunction(c);
}
catch (final ClassNotFoundException e)
{
throw new ParseException("Failed to parse attribute 'aggregation-function': invalid class name", e);
}
}
groupDefinition.setGroupName(attrs.getValue(getUri(), "group-name"));
groupDefinition.setGroupTotalsLabel(attrs.getValue(getUri(), "group-totals-label"));
groupDefinition.setGroupType(parseGroupType(attrs.getValue(getUri(), "group-type")));
}
protected XmlReadHandler getHandlerForChild(final String uri,
final String tagName,
final Attributes atts) throws SAXException
{
if (isSameNamespace(uri) == false)
{
return null;
}
if (("footer".equals(tagName)) || ("group-footer".equals(tagName)))
{
return new RootBandDefinitionReadHandler(groupDefinition.getFooter());
}
if (("header".equals(tagName) || ("group-header".equals(tagName))))
{
return new RootBandDefinitionReadHandler(groupDefinition.getHeader());
}
return null;
}
private GroupType parseGroupType(final String s)
{
final GroupType[] types = GroupType.values();
for (int i = 0; i < types.length; i++)
{
final GroupType type = types[i];
if (type.getType().equals(s))
{
return type;
}
}
return GroupType.RELATIONAL;
}
public Object getObject() throws SAXException
{
return groupDefinition;
}
}