/*
* 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.data.sql;
import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.modules.misc.datafactory.sql.ConnectionProvider;
import org.pentaho.reporting.engine.classic.core.modules.misc.datafactory.sql.SimpleSQLReportDataFactory;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.DataFactoryReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* Creation-Date: 07.04.2006, 17:47:53
*
* @author Thomas Morgner
*/
public class SQLDirectDataSourceReadHandler extends AbstractXmlReadHandler implements DataFactoryReadHandler {
private ConnectionReadHandler connectionProviderReadHandler;
private ConfigReadHandler configReadHandler;
private DataFactory dataFactory;
public SQLDirectDataSourceReadHandler() {
}
/**
* 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 SAXException
* if there is a parsing error.
*/
protected XmlReadHandler getHandlerForChild( final String uri, final String tagName, final Attributes atts )
throws SAXException {
final ConnectionReadHandlerFactory factory = ConnectionReadHandlerFactory.getInstance();
final ConnectionReadHandler handler = (ConnectionReadHandler) factory.getHandler( uri, tagName );
if ( handler != null ) {
connectionProviderReadHandler = handler;
return connectionProviderReadHandler;
}
if ( isSameNamespace( uri ) == false ) {
return null;
}
if ( "config".equals( tagName ) ) {
configReadHandler = new ConfigReadHandler();
return configReadHandler;
}
return null;
}
/**
* Done parsing.
*
* @throws SAXException
* if there is a parsing error.
*/
protected void doneParsing() throws SAXException {
ConnectionProvider provider = null;
if ( connectionProviderReadHandler != null ) {
provider = (ConnectionProvider) connectionProviderReadHandler.getObject();
}
if ( provider == null ) {
provider = (ConnectionProvider) getRootHandler().getHelperObject( "connection-provider" );
}
if ( provider == null ) {
throw new SAXException( "Unable to create SQL Factory: No connection provider specified or recognized." );
}
final SimpleSQLReportDataFactory srdf = new SimpleSQLReportDataFactory( provider );
dataFactory = srdf;
}
/**
* Returns the object for this element or null, if this element does not create an object.
*
* @return the object.
* @throws SAXException
* if there is a parsing error.
*/
public Object getObject() throws SAXException {
return dataFactory;
}
public DataFactory getDataFactory() {
return dataFactory;
}
}