/*
* 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 - 2009 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.modules.parser.base.PropertyAttributes;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.common.AbstractPropertyXmlReadHandler;
import org.pentaho.reporting.engine.classic.core.style.ElementStyleSheet;
import org.pentaho.reporting.engine.classic.core.style.StyleSheetCollection;
import org.pentaho.reporting.libraries.xmlns.parser.ParseException;
import org.xml.sax.SAXException;
public class StyleExtendsReadHandler extends AbstractPropertyXmlReadHandler
{
private StyleSheetCollection styleSheetCollection;
private ElementStyleSheet styleSheet;
public StyleExtendsReadHandler(final StyleSheetCollection styleSheetCollection,
final ElementStyleSheet styleSheet)
{
this.styleSheetCollection = styleSheetCollection;
this.styleSheet = styleSheet;
}
/**
* Starts parsing.
*
* @param attrs the attributes.
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected void startParsing(final PropertyAttributes attrs)
throws SAXException
{
final String name = attrs.getValue(getUri(), "name");
if (name == null)
{
throw new ParseException
("Required attribute 'name' is missing.",
getRootHandler().getDocumentLocator());
}
final ElementStyleSheet parent = styleSheetCollection.getStyleSheet(name);
if (parent == null)
{
throw new ParseException
("Specified parent stylesheet is not defined.",
getRootHandler().getDocumentLocator());
}
styleSheet.addParent(parent);
}
/**
* Returns the object for this element or null, if this element does not create an object.
*
* @return the object.
*/
public Object getObject()
{
return null;
}
}