/*
* 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.extensions.datasources.mondrian.parser;

import org.pentaho.reporting.engine.classic.core.modules.parser.base.DataFactoryReadHandlerFactory;
import org.pentaho.reporting.engine.classic.extensions.datasources.mondrian.MondrianDataFactoryModule;
import org.pentaho.reporting.libraries.xmlns.parser.XmlDocumentInfo;
import org.pentaho.reporting.libraries.xmlns.parser.XmlFactoryModule;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;

/**
 * Todo: Document Me
 *
 * @author Thomas Morgner
 */
public class DenormalizedMDXDataSourceXmlFactoryModule implements XmlFactoryModule {
  public DenormalizedMDXDataSourceXmlFactoryModule() {
  }

  public int getDocumentSupport( final XmlDocumentInfo documentInfo ) {
    final String rootNamespace = documentInfo.getRootElementNameSpace();
    if ( rootNamespace != null && rootNamespace.length() > 0 ) {
      if ( MondrianDataFactoryModule.NAMESPACE.equals( rootNamespace ) == false ) {
        return NOT_RECOGNIZED;
      } else if ( "denormalized-mdx-datasource".equals( documentInfo.getRootElement() ) ) {
        return RECOGNIZED_BY_NAMESPACE;
      }
    } else if ( "denormalized-mdx-datasource".equals( documentInfo.getRootElement() ) ) {
      return RECOGNIZED_BY_TAGNAME;
    }

    return NOT_RECOGNIZED;
  }

  public String getDefaultNamespace( final XmlDocumentInfo documentInfo ) {
    return MondrianDataFactoryModule.NAMESPACE;
  }

  public XmlReadHandler createReadHandler( final XmlDocumentInfo documentInfo ) {
    final DataFactoryReadHandlerFactory factory = DataFactoryReadHandlerFactory.getInstance();
    final XmlReadHandler result =
      factory.getHandler( MondrianDataFactoryModule.NAMESPACE, "denormalized-mdx-datasource" );
    if ( result == null ) {
      throw new IllegalStateException( "Failed to return a valid readhandler" );
    }
    return result;
  }

}