/*
 * 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 2008 - 2009 Pentaho Corporation.  All rights reserved.
*/
package org.pentaho.pac.server.datasources;

import java.util.List;

import org.pentaho.pac.common.PentahoSecurityException;
import org.pentaho.pac.common.datasources.DuplicateDataSourceException;
import org.pentaho.pac.common.datasources.NonExistingDataSourceException;
import org.pentaho.pac.server.common.DAOException;
import org.pentaho.pac.server.common.DAOFactory;
import org.pentaho.platform.api.repository.datasource.IDatasource;

public class DataSourceMgmtService implements IDataSourceMgmtService {
  IDataSourceDAO dataSourceDAO = null;

  public DataSourceMgmtService() {
    dataSourceDAO = DAOFactory.getDataSourceDAO();
  }

  public void createDataSource(IDatasource newDataSource) throws DuplicateDataSourceException, DAOException, PentahoSecurityException {
    if (hasCreateDataSourcePerm(newDataSource)) {
      dataSourceDAO.createDataSource(newDataSource);
    } else {
      throw new PentahoSecurityException();
    }
  }

  public void deleteDataSource(String jndiName) throws NonExistingDataSourceException, DAOException, PentahoSecurityException {
    IDatasource dataSource = dataSourceDAO.getDataSource(jndiName);
    if (dataSource != null) {
      deleteDataSource(dataSource);
    } else {
      throw new NonExistingDataSourceException(jndiName);
    }
  }

  public void deleteDataSource(IDatasource dataSource) throws NonExistingDataSourceException, DAOException, PentahoSecurityException {
    if (hasDeleteDataSourcePerm(dataSource)) {
      dataSourceDAO.deleteDataSource(dataSource);
    } else {
      throw new PentahoSecurityException();
    }
  }

  public IDatasource getDataSource(String jndiName) throws DAOException {
    return dataSourceDAO.getDataSource(jndiName);
  }

  public List<IDatasource> getDataSources() throws DAOException {
    return dataSourceDAO.getDataSources();
  }

  public void updateDataSource(IDatasource dataSource) throws DAOException, PentahoSecurityException, NonExistingDataSourceException {
    if (hasUpdateDataSourcePerm(dataSource)) {
      dataSourceDAO.updateDataSource(dataSource);
    } else {
      throw new PentahoSecurityException();
    }
  }
  public void beginTransaction()  throws DAOException {
    dataSourceDAO.beginTransaction();
  }

  public void commitTransaction()  throws DAOException {
    dataSourceDAO.commitTransaction();
  }

  public void rollbackTransaction()  throws DAOException {
    dataSourceDAO.rollbackTransaction();
  }

  public void closeSession() {
    dataSourceDAO.closeSession();
  }

  protected boolean hasCreateDataSourcePerm(IDatasource dataSource) {
    return true;
  }

  protected boolean hasUpdateDataSourcePerm(IDatasource dataSource) {
    return true;
  }
  protected boolean hasDeleteDataSourcePerm(IDatasource dataSource) {
    return true;
  }
}