/*
* 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.bundle.data;
import java.util.ArrayList;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.compat.CompatibilityMapperUtil;
import org.pentaho.reporting.engine.classic.core.parameters.DefaultParameterDefinition;
import org.pentaho.reporting.engine.classic.core.parameters.DefaultReportParameterValidator;
import org.pentaho.reporting.engine.classic.core.parameters.ParameterDefinitionEntry;
import org.pentaho.reporting.engine.classic.core.parameters.ReportParameterValidator;
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;
/**
* Fill me.
*
* @author Thomas Morgner
*/
public class MasterParameterDefinitionReadHandler extends AbstractXmlReadHandler
{
private DefaultParameterDefinition parameterDefinition;
private ArrayList parameterReadHandlers;
public MasterParameterDefinitionReadHandler()
{
parameterReadHandlers = new ArrayList();
parameterDefinition = new DefaultParameterDefinition();
}
protected void startParsing(final Attributes attrs) throws SAXException
{
final String validatorClass = attrs.getValue(getUri(), "validator");
if (validatorClass == null)
{
parameterDefinition.setValidator(new DefaultReportParameterValidator());
}
else
{
final Object o = ObjectUtilities.loadAndInstantiate
(CompatibilityMapperUtil.mapClassName(validatorClass), getClass(), ReportParameterValidator.class);
if (o == null)
{
throw new ParseException("Valud given for 'validator' is invalid", getLocator());
}
parameterDefinition.setValidator((ReportParameterValidator) o);
}
}
protected XmlReadHandler getHandlerForChild(final String uri,
final String tagName,
final Attributes atts) throws SAXException
{
if (isSameNamespace(uri) == false)
{
return null;
}
if ("plain-parameter".equals(tagName))
{
final PlainParameterReadHandler readHandler = new PlainParameterReadHandler();
parameterReadHandlers.add(readHandler);
return readHandler;
}
if ("single-selection-parameter".equals(tagName))
{
// This is actually deprecated .
final ListParameterReadHandler readHandler = new ListParameterReadHandler();
parameterReadHandlers.add(readHandler);
return readHandler;
}
if ("list-parameter".equals(tagName))
{
final ListParameterReadHandler readHandler = new ListParameterReadHandler();
parameterReadHandlers.add(readHandler);
return readHandler;
}
return null;
}
protected void doneParsing() throws SAXException
{
for (int i = 0; i < parameterReadHandlers.size(); i++)
{
final XmlReadHandler handler = (XmlReadHandler) parameterReadHandlers.get(i);
parameterDefinition.addParameterDefinition((ParameterDefinitionEntry) handler.getObject());
}
}
/**
* Returns the object for this element or null, if this element does not create an object.
*
* @return the object.
* @throws SAXException if an parser error occured.
*/
public Object getObject() throws SAXException
{
return parameterDefinition;
}
}