Package net.sf.jasperreports.olap

Source Code of net.sf.jasperreports.olap.JRMondrianQueryExecuter

/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.olap;

import java.util.Map;

import mondrian.olap.Connection;
import mondrian.olap.Query;
import mondrian.olap.Result;
import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JRDataset;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.query.JRAbstractQueryExecuter;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;


/**
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: JRMondrianQueryExecuter.java 3035 2009-08-27 12:05:03Z teodord $
*/
public class JRMondrianQueryExecuter extends JRAbstractQueryExecuter
{
  private static final Log log = LogFactory.getLog(JRMondrianQueryExecuter.class);
 
  private Connection connection;
  private Result result;

  public JRMondrianQueryExecuter(JRDataset dataset, Map parametersMap)
  {
    super(dataset, parametersMap);
   
    connection = (Connection) getParameterValue(JRMondrianQueryExecuterFactory.PARAMETER_MONDRIAN_CONNECTION);

    if (connection == null)
    {
      log.warn("The supplied mondrian.olap.Connection object is null.");
    }
   
    parseQuery();
  }

  protected String getParameterReplacement(String parameterName)
  {
    return String.valueOf(getParameterValue(parameterName));
  }

  public JRDataSource createDatasource() throws JRException
  {
    JRDataSource dataSource = null;
   
    String queryStr = getQueryString();
    if (connection != null && queryStr != null)
    {
      if (log.isDebugEnabled())
      {
        log.debug("MDX query: " + queryStr);
      }
     
      Query query = connection.parseQuery(queryStr);
      result = connection.execute(query);
     
      dataSource = new JRMondrianDataSource(dataset, result);
    }

    return dataSource;
  }

  public void close()
  {
    if (result != null)
    {
      result.close();
      result = null;
    }
  }

  public boolean cancelQuery() throws JRException
  {
    return false;
  }
}
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