/*!
* 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.designer.core.editor.drilldown.parser;
import java.util.ArrayList;
import org.pentaho.reporting.designer.core.editor.drilldown.model.Parameter;
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;
/**
* Todo: Document me!
* <p/>
* Date: 13.08.2010
* Time: 17:34:04
*
* @author Thomas Morgner.
*/
public class ParameterReadHandler extends AbstractXmlReadHandler
{
private Parameter parameter;
private ArrayList<ParameterAttributeReadHandler> attributeReadHandlers;
private ParameterValuesReadHandler valuesReadHandler;
public ParameterReadHandler()
{
attributeReadHandlers = new ArrayList<ParameterAttributeReadHandler>();
}
/**
* Starts parsing.
*
* @param attrs the attributes.
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected void startParsing(final Attributes attrs) throws SAXException
{
final String name = attrs.getValue(getUri(), "name");// NON-NLS
parameter = new Parameter(name);
parameter.setMandatory("true".equals(attrs.getValue(getUri(), "is-mandatory")));// NON-NLS
parameter.setStrict("true".equals(attrs.getValue(getUri(), "is-strict")));// NON-NLS
parameter.setMultiSelect("true".equals(attrs.getValue(getUri(), "is-multi-select")));// NON-NLS
parameter.setType(attrs.getValue(getUri(), "type"));// NON-NLS
parameter.setTimezoneHint(attrs.getValue(getUri(), "timezone-hint"));// NON-NLS
}
/**
* 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 ("attribute".equals(tagName))//NON-NLS
{
final ParameterAttributeReadHandler readHandler = new ParameterAttributeReadHandler();
attributeReadHandlers.add(readHandler);
return readHandler;
}
if ("values".equals(tagName))//NON-NLS
{
if (valuesReadHandler == null)
{
valuesReadHandler = new ParameterValuesReadHandler(parameter.getType());
}
return valuesReadHandler;
}
return null;
}
/**
* Done parsing.
*
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected void doneParsing() throws SAXException
{
for (int i = 0; i < attributeReadHandlers.size(); i++)
{
final ParameterAttributeReadHandler readHandler = attributeReadHandlers.get(i);
parameter.setAttribute(readHandler.getNamespace(), readHandler.getName(), readHandler.getValue());
}
if (valuesReadHandler != null)
{
parameter.setSelections(valuesReadHandler.getSelections());
}
}
/**
* 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 parameter;
}
public Parameter getParameter()
{
return parameter;
}
}