/*!
* 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.extensions.datasources.pmd.parser;
import java.util.ArrayList;
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.core.modules.parser.base.common.QueryDefinitionReadHandler;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.common.QueryDefinitionsReadHandler;
import org.pentaho.reporting.engine.classic.extensions.datasources.pmd.PmdDataFactory;
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;
public class PmdDataSourceReadHandler extends AbstractXmlReadHandler implements DataFactoryReadHandler
{
private IPmdConfigReadHandler configReadHandler;
private ArrayList<PropertyReadHandler> queries;
private QueryDefinitionsReadHandler queryDefinitionsReadHandler;
private PmdDataFactory dataFactory;
private PropertyReadHandler globalScriptReadHandler;
public PmdDataSourceReadHandler()
{
queries = new ArrayList<PropertyReadHandler>();
}
/**
* 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 SAXException if there is a parsing error.
*/
protected XmlReadHandler getHandlerForChild(final String uri,
final String tagName,
final Attributes atts) throws SAXException
{
final PmdConfigReadHandlerFactory configfactory = PmdConfigReadHandlerFactory.getInstance();
final XmlReadHandler confighandler = configfactory.getHandler(uri, tagName);
if (confighandler instanceof IPmdConfigReadHandler)
{
configReadHandler = (IPmdConfigReadHandler) confighandler;
return confighandler;
}
if (isSameNamespace(uri) == false)
{
return null;
}
if ("global-script".equals(tagName))
{
globalScriptReadHandler = new PropertyReadHandler("language", true);
return globalScriptReadHandler;
}
if ("query".equals(tagName))
{
final PropertyReadHandler queryReadHandler = new PropertyReadHandler();
queries.add(queryReadHandler);
return queryReadHandler;
}
if ("query-definitions".equals(tagName))
{
queryDefinitionsReadHandler = new QueryDefinitionsReadHandler();
return queryDefinitionsReadHandler;
}
return null;
}
/**
* Done parsing.
*
* @throws SAXException if there is a parsing error.
*/
protected void doneParsing() throws SAXException
{
final PmdDataFactory pmddf = new PmdDataFactory();
pmddf.setConnectionProvider(configReadHandler.getConnectionProvider());
pmddf.setDomainId(configReadHandler.getDomain());
pmddf.setXmiFile(configReadHandler.getXmiFile());
if (globalScriptReadHandler != null)
{
pmddf.setGlobalScript(globalScriptReadHandler.getResult());
pmddf.setGlobalScriptLanguage(globalScriptReadHandler.getName());
}
for (int i = 0; i < queries.size(); i++)
{
final PropertyReadHandler handler = queries.get(i);
pmddf.setQuery(handler.getName(), handler.getResult(), null, null);
}
if (queryDefinitionsReadHandler != null)
{
final ArrayList<QueryDefinitionReadHandler> scriptedQueries = queryDefinitionsReadHandler.getScriptedQueries();
for (final QueryDefinitionReadHandler scriptedQuery : scriptedQueries)
{
pmddf.setQuery(scriptedQuery.getName(), scriptedQuery.getQuery(),
scriptedQuery.getScriptLanguage(), scriptedQuery.getScript());
}
}
dataFactory = pmddf;
}
/**
* 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 dataFactory;
}
public DataFactory getDataFactory()
{
return dataFactory;
}
}