MondrianOneToOneUserRoleListMapper.java

package org.pentaho.platform.plugin.action.mondrian.mapper;
/*
 * 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 2005 - 2009 Pentaho Corporation.  All rights reserved.
 *
 *
 * Created December 12, 2009
 * @author Marc Batchelor
 */

import java.util.ArrayList;
import java.util.Arrays;

public class MondrianOneToOneUserRoleListMapper extends MondrianAbstractPlatformUserRoleMapper {
  
  /**
   * This mapper maps directly from a Pentaho to a Mondrian role. This is useful when your
   * roles exist both in the platform and identically named in the mondrian catalog.
   */
  protected String[] mapRoles(String[] mondrianRoles, String[] platformRoles) {
    //
    // This class assumes that the platform roles list contains roles that
    // are defined in the mondrian schema. All roles that the user has 
    // that are defined in the mondrian schema are returned.
    //
    // Note - this mapper doesn't need the mondrian catalog to do the mapping
    String[] rtn = null;
    ArrayList<String> rtnRoles = new ArrayList<String>();
    int posn;
    // For each platform role...
    for (int i=0; i<platformRoles.length; i++) {
      // Find the role in the Mondrian roles for this catalog
      posn = Arrays.binarySearch(mondrianRoles, platformRoles[i]);
      if (posn>=0) {
        // For each one found, add it to the returned array of roles
        rtnRoles.add(mondrianRoles[posn]);
      }
    }
    if (rtnRoles.size()>0) {
      rtn = rtnRoles.toArray(new String[rtnRoles.size()]);
    }
    return rtn;
  }
  
}