package org.pentaho.reporting.engine.classic.extensions.datasources.mondrian.parser;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import org.pentaho.reporting.engine.classic.extensions.datasources.mondrian.DataSourceProvider;
import org.pentaho.reporting.engine.classic.extensions.datasources.mondrian.DriverDataSourceProvider;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.PropertiesReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.StringReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* Todo: Document me!
* <p/>
* Date: 25.08.2009
* Time: 10:09:05
*
* @author Thomas Morgner.
*/
public class DriverDataSourceProviderReadHandler extends AbstractXmlReadHandler implements DataSourceProviderReadHandler
{
private StringReadHandler driverReadHandler;
private StringReadHandler urlReadHandler;
private PropertiesReadHandler propertiesReadHandler;
private DriverDataSourceProvider driverConnectionProvider;
public DriverDataSourceProviderReadHandler()
{
}
/**
* 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
{
if (isSameNamespace(uri) == false)
{
return null;
}
if ("driver".equals(tagName))
{
driverReadHandler = new StringReadHandler();
return driverReadHandler;
}
if ("url".equals(tagName))
{
urlReadHandler = new StringReadHandler();
return urlReadHandler;
}
if ("properties".equals(tagName))
{
propertiesReadHandler = new PropertiesReadHandler();
return propertiesReadHandler;
}
return null;
}
/**
* Done parsing.
*
* @throws SAXException if there is a parsing error.
*/
protected void doneParsing() throws SAXException
{
final DriverDataSourceProvider provider = new DriverDataSourceProvider();
if (driverReadHandler != null)
{
provider.setDriver(driverReadHandler.getResult());
}
if (urlReadHandler != null)
{
provider.setUrl(urlReadHandler.getResult());
}
if (propertiesReadHandler != null)
{
final Properties p = (Properties) propertiesReadHandler.getObject();
final Iterator it = p.entrySet().iterator();
while (it.hasNext())
{
final Map.Entry entry = (Map.Entry) it.next();
provider.setProperty((String) entry.getKey(), (String) entry.getValue());
}
}
driverConnectionProvider = provider;
}
/**
* 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 driverConnectionProvider;
}
public DataSourceProvider getProvider()
{
return driverConnectionProvider;
}
}