/*
* 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.extensions.datasources.xquery.parser;
import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.DataFactoryReadHandler;
import org.pentaho.reporting.engine.classic.extensions.datasources.xquery.XQConnectionProvider;
import org.pentaho.reporting.engine.classic.extensions.datasources.xquery.XQReportDataFactory;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.PropertyReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import java.util.ArrayList;
/**
* @author Cedric Pronzato
*/
public class XQDataSourceReadHandler extends AbstractXmlReadHandler
implements DataFactoryReadHandler
{
private XQConnectionReadHandler connectionReadHandler;
private ArrayList queries;
private XQReportDataFactory dataFactory;
public XQDataSourceReadHandler()
{
queries = new ArrayList();
}
/**
* Returns the handler for a child element.
*
* @param uri the URI of the namespace of the current 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 (isSameNamespace(uri) == false)
{
return null;
}
if ("connection".equals(tagName))
{
connectionReadHandler = new DriverXQConnectionReadHandler();
return connectionReadHandler;
}
if ("jndi".equals(tagName))
{
connectionReadHandler = new JndiXQConnectionReadHandler();
return connectionReadHandler;
}
if ("query".equals(tagName))
{
final PropertyReadHandler queryReadHandler = new PropertyReadHandler();
queries.add(queryReadHandler);
return queryReadHandler;
}
return null;
}
@Override
protected void doneParsing() throws SAXException
{
super.doneParsing();
final XQConnectionProvider provider = (XQConnectionProvider) connectionReadHandler.getObject();
dataFactory = new XQReportDataFactory(provider);
for (int i = 0; i < queries.size(); i++)
{
final PropertyReadHandler q = (PropertyReadHandler) queries.get(i);
dataFactory.setQuery(q.getName(), q.getResult());
}
}
/**
* Returns the object for this element or null, if this element does not create an object.
*
* @return the object.
*
* @throws org.xml.sax.SAXException if an parser error occured.
*/
public Object getObject() throws SAXException
{
return dataFactory;
}
public DataFactory getDataFactory()
{
return dataFactory;
}
}