/*
 * 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.wizard.parser;

import org.pentaho.reporting.engine.classic.core.wizard.DefaultConceptQueryMapper;
import org.pentaho.reporting.engine.classic.core.wizard.DefaultDataAttributes;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

public class RuleMetaAttributesReadHandler extends AbstractXmlReadHandler {
  private DefaultDataAttributes dataAttributes;

  public RuleMetaAttributesReadHandler() {
    this.dataAttributes = new DefaultDataAttributes();
  }

  /**
   * Starts parsing.
   *
   * @param attrs
   *          the attributes.
   * @throws SAXException
   *           if there is a parsing error.
   */
  protected void startParsing( final Attributes attrs ) throws SAXException {
    final int length = attrs.getLength();
    for ( int i = 0; i < length; i++ ) {
      final String name = attrs.getLocalName( i );
      final String namespace = attrs.getURI( i );
      final String attributeValue = attrs.getValue( i );
      dataAttributes.setMetaAttribute( namespace, name, DefaultConceptQueryMapper.INSTANCE, attributeValue );
    }
  }

  /**
   * 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 dataAttributes;
  }
}